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Zhu Y, Chen P, Hu B, Zhong S, Yan K, Wu Y, Li S, Yang Y, Xu Z, Lu Y, Ouyang Y, Bao H, Gu W, Wen L, Zhang Y. MDSC-targeting gold nanoparticles enhance PD-1 tumor immunotherapy by inhibiting NLRP3 inflammasomes. Biomaterials 2024; 307:122533. [PMID: 38493671 DOI: 10.1016/j.biomaterials.2024.122533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/20/2024] [Accepted: 03/09/2024] [Indexed: 03/19/2024]
Abstract
Myeloid-derived suppressor cells (MDSCs) play a crucial role in the immune escape mechanisms that limit the efficacy of immunotherapeutic strategies. In the tumor microenvironment, NLRP3 inflammasome-driven Interleukin-1β (IL-1β) production serves to dampen antitumor immune responses, promoting tumor growth, progression, and immunosuppression. In this study, we revealed that gold nanoparticles (Au NPs) with a size of 30 nm disrupted NLRP3 inflammasome, but not other inflammasomes, in bone marrow-derived macrophages through abrogating NLRP3-NEK7 interactions mediated by reactive oxygen species (ROS). Density functional theory (DFT) calculations provided insights into the mechanism underlying the exceptional ROS scavenging capabilities of Au NPs. Additionally, when coupled with H6, a small peptide targeting MDSCs, Au NPs demonstrated the capacity to effectively reduce IL-1β levels and diminish the MDSCs population in tumor microenvironment, leading to enhanced T cell activation and increased immunotherapeutic efficacy in mouse tumor models that are sensitive and resistant to PD-1 inhibition. Our findings unraveled a novel approach wherein peptide-modified Au NPs relieved the suppressive impact of the tumor microenvironment by inhibiting MDSCs-mediated IL-1β release, which is the first time reported the employing a nanostrategy at modulating MDSCs to reverse the immunosuppressive microenvironment and may hold promise as a potential therapeutic agent for cancer immunotherapy.
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Affiliation(s)
- Yangyang Zhu
- School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Pin Chen
- National Supercomputer Center in Guangzhou, School of Data and Computer Science, Sun Yat-Senedi University, 132 East Circle at University City, Guangzhou, 510006, China
| | - Bochuan Hu
- School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Suqin Zhong
- School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Kai Yan
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Yu Wu
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Shanshan Li
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Yinyin Yang
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Zexin Xu
- National Supercomputer Center in Guangzhou, School of Data and Computer Science, Sun Yat-Senedi University, 132 East Circle at University City, Guangzhou, 510006, China
| | - Yutong Lu
- National Supercomputer Center in Guangzhou, School of Data and Computer Science, Sun Yat-Senedi University, 132 East Circle at University City, Guangzhou, 510006, China
| | - Ying Ouyang
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China; China-Singapore International Joint Research Institute, Guangzhou, 510700, China
| | - Hui Bao
- Department of Oncology, The Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Weiguang Gu
- Department of Oncology, The Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, 510006, China.
| | - Longping Wen
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China.
| | - Yunjiao Zhang
- School of Medicine, South China University of Technology, Guangzhou, 510006, China.
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Zhang H, Ouyang Y, Zhang H, Zhang Y, Su R, Zhou B, Yang W, Lei Y, Huang B. Sub-region based radiomics analysis for prediction of isocitrate dehydrogenase and telomerase reverse transcriptase promoter mutations in diffuse gliomas. Clin Radiol 2024; 79:e682-e691. [PMID: 38402087 DOI: 10.1016/j.crad.2024.01.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 01/16/2024] [Accepted: 01/21/2024] [Indexed: 02/26/2024]
Abstract
AIM To enhance the prediction of mutation status of isocitrate dehydrogenase (IDH) and telomerase reverse transcriptase (TERT) promoter, which are crucial for glioma prognostication and therapeutic decision-making, via sub-regional radiomics analysis based on multiparametric magnetic resonance imaging (MRI). MATERIALS AND METHODS A retrospective study was conducted on 401 participants with adult-type diffuse gliomas. Employing the K-means algorithm, tumours were clustered into two to four subregions. Sub-regional radiomics features were extracted and selected using the Mann-Whitney U-test, Pearson correlation analysis, and least absolute shrinkage and selection operator, forming the basis for predictive models. The performance of model combinations of different sub-regional features and classifiers (including logistic regression, support vector machines, K-nearest neighbour, light gradient boosting machine, and multilayer perceptron) was evaluated using an external test set. RESULTS The models demonstrated high predictive performance, with area under the receiver operating characteristic curve (AUC) values ranging from 0.918 to 0.994 in the training set for IDH mutation prediction and from 0.758 to 0.939 for TERT promoter mutation prediction. In the external test sets, the two-cluster radiomics features and the logistic regression model yielded the highest prediction for IDH mutation, resulting in an AUC of 0.905. Additionally, the most effective predictive performance with an AUC of 0.803 was achieved using the four-cluster radiomics features and the support vector machine model, specifically for TERT promoter mutation prediction. CONCLUSION The present study underscores the potential of sub-regional radiomics analysis in predicting IDH and TERT promoter mutations in glioma patients. These models have the capacity to refine preoperative glioma diagnosis and contribute to personalised therapeutic interventions for patients.
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Affiliation(s)
- H Zhang
- Department of Radiology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 517108, China; Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China; The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Y Ouyang
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China; The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - H Zhang
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, 518035, China
| | - Y Zhang
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China; The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - R Su
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China; The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - B Zhou
- Department of Radiology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 517108, China
| | - W Yang
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Y Lei
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, 518035, China.
| | - B Huang
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China; The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China.
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Zhou Y, Chen C, Chen Y, Ding Y, Li S, Wu J, Hong S, Lu B, Liang H, Liu Y, Ouyang Y, Yin W, Hu C. Synthetic steroid of 5α-Androst-3β,5α,6β-Triol alleviates acute lung injury via inhibiting inflammation and oxidative stress. Int Immunopharmacol 2024; 129:111486. [PMID: 38326121 DOI: 10.1016/j.intimp.2024.111486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 12/19/2023] [Accepted: 01/01/2024] [Indexed: 02/09/2024]
Abstract
Acute lung injury (ALI) is a severe and potentially fatal respiratory condition with limited treatment options. The pathological evolution of ALI is driven by persistent inflammation, destruction of the pulmonary vascular barrier and oxidative stress. Evidence from prior investigations has identified 5α-androst-3β,5α,6β-Triol (TRIOL), a synthetic analogue of the naturally occurring neuroprotective compound cholestane-3β,5α,6β-triol, possesses notable anti-inflammatory and antioxidative properties. However, the precise effects of TRIOL on alleviating lung injury along with the mechanisms, have remained largely unexplored. Here, TRIOL exhibited pronounced inhibitory actions on lipopolysaccharide (LPS)-induced inflammation and oxidative stress damage in both lung epithelial and endothelial cells. This protective effect is achieved by its ability to mitigate oxidative stress and restrain the inflammatory cascade orchestrated by nuclear factor-kappa B (NF-κB), thereby preserving the integrity of the pulmonary epithelial barrier. We further validated that TRIOL can attenuate LPS-induced lung injury in rats and mice by reducing inflammatory cell infiltration and improving pulmonary edema. Furthermore, TRIOL decreased the pro-inflammatory factors and increased of anti-inflammatory factors induced by LPS. In conclusion, our study presents TRIOL as a promising novel candidate for the treatment of ALI.
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Affiliation(s)
- YuWei Zhou
- Department of Laboratory Medicine, the Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China; Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - Chen Chen
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China; Department of Molecular Biology and Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - YuPin Chen
- Guangzhou Cellprotek Pharmaceutical Co., Ltd., Guangzhou 510663, China
| | - YuXuan Ding
- Department of Molecular Biology and Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - ShengLong Li
- Department of Molecular Biology and Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - JiaXin Wu
- Department of Molecular Biology and Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - ShiRan Hong
- Department of Molecular Biology and Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - BingZheng Lu
- Guangzhou Cellprotek Pharmaceutical Co., Ltd., Guangzhou 510663, China
| | - HuaFeng Liang
- Guangzhou Cellprotek Pharmaceutical Co., Ltd., Guangzhou 510663, China
| | - Ying Liu
- Department of Infectious Diseases, the Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Ying Ouyang
- Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Wei Yin
- Department of Molecular Biology and Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - Cheng Hu
- Department of Urology, the Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China.
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Zhong W, Jian Y, Zhang C, Li Y, Yuan Z, Xiong Z, Huang W, Ouyang Y, Chen X, Song L, Liu P, Wang X. SHC4 orchestrates β-catenin pathway-mediated metastasis in triple-negative breast cancer by promoting Src kinase autophosphorylation. Cancer Lett 2024; 582:216516. [PMID: 38052369 DOI: 10.1016/j.canlet.2023.216516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/10/2023] [Accepted: 11/23/2023] [Indexed: 12/07/2023]
Abstract
Triple-negative breast cancer (TNBC) is highly aggressive and metastatic, and has the poorest prognosis among all breast cancer subtypes. Activated β-catenin is enriched in TNBC and involved in Wnt signaling-independent metastasis. However, the underlying mechanisms of β-catenin activation in TNBC remain unknown. Here, we found that SHC4 was upregulated in TNBC and high SHC4 expression was significantly correlated with poor outcomes. Overexpression of SHC4 promoted TNBC aggressiveness in vitro and facilitated TNBC metastasis in vivo. Mechanistically, SHC4 interacted with Src and maintained its autophosphorylated activation, which activated β-catenin independent of Wnt signaling, and finally upregulated the transcription and expression of its downstream genes CD44 and MMP7. Furthermore, we determined that the PxPPxPxxxPxxP sequence on CH2 domain of SHC4 was critical for SHC4-Src binding and Src kinase activation. Overall, our results revealed the mechanism of β-catenin activation independent of Wnt signaling in TNBC, which was driven by SHC4-induced Src autophosphorylation, suggesting that SHC4 might be a potential prognostic marker and therapeutic target in TNBC.
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Affiliation(s)
- Wenjing Zhong
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China; Department of Breast Surgery, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, China
| | - Yunting Jian
- Department of Pathology, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Chao Zhang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China; Department of Breast Surgery, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, China
| | - Yue Li
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Zhongyu Yuan
- Department of Medical Oncology, The State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, China
| | - Zhenchong Xiong
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China; Department of Breast Surgery, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, China
| | - Weiling Huang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China; Department of Breast Surgery, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, China
| | - Ying Ouyang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Xiangfu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Libing Song
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China.
| | - Pian Liu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Xi Wang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China; Department of Breast Surgery, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, China.
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Zhou Y, Li QX, Liao ZZ, Liu Y, Ouyang Y, Jiang WJ, Tang MT, Hu JF, Zhang W. Anti-inflammatory effect and component analysis of Chaihu Qingwen granules. J Ethnopharmacol 2023; 317:116763. [PMID: 37315646 DOI: 10.1016/j.jep.2023.116763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 06/04/2023] [Accepted: 06/07/2023] [Indexed: 06/16/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE As prevalent acute respiratory condition in clinical practice, acute lung injury has a quick start and severe symptoms which can harm patients physically. Chaihu Qingwen granules (CHQW) is a classic formula for the treatment of respiratory diseases. Clinical observation shows that CHQW has good efficacy in treating colds, coughs, and fevers. AIM OF THE STUDY The aim of this study was to investigate the anti-inflammatory effect of CHQW on lipopolysaccharide (LPS)-induced acute lung injury (ALI) model in rats and to explore its potential mechanism, as well as to clarify its substance composition. MATERIALS AND METHODS Male SD rats were randomly divided into the blank group, the model group, the ibuprofen group, the Lianhua Qingwen capsule group and the CHQW group (2, 4 and 8 g/kg, respectively). The LPS-induced acute lung injury (ALI) model in rats was established after pre-administration. The histopathological changes in the lung and the levels of inflammatory factors in bronchoalveolar lavage fluid (BALF) and serum of ALI rats were observed. The inflammation-related proteins toll-like receptor 4 (TLR4), inhibitory kappa B alpha (IκBα), phospho-IκBα (p-IκBα), nuclear-factor-kappa B (NF-κB), and NLR family pyrin domain containing 3(NLRP3) expression levels were measured by western blotting analysis and immunohistochemical analysis. The chemical composition of CHQW was identified by liquid chromatography-quadrupole-time of flight-mass spectrometry (LC-Q-TOF-MS). RESULTS CHQW significantly ameliorated lung tissue pathological injury in LPS-induced ALI rats and decreased the release of inflammatory cytokines (interleukin-1β, interleukin-17 and tumor necrosis factor-α) in BALF and serum. In addition, CHQW decreased the expression of TLR4, p-IκBα and NF-κB proteins, increased the level of IκBα, regulated the TLR4/NF-κB signaling pathway, and inhibited the activation of NLRP3. The chemical components of CHQW were analyzed by LC-Q-TOF-MS, and a total of 48 components were identified by combining information from the literature, mainly flavonoids, organic acids, lignans, iridoids and phenylethanoid glycosides. CONCLUSION The results of this study showed that the pretreatment of CHQW had a strong protective effect on LPS-induced ALI in rats, reducing lung tissue lesions and decreasing inflammatory cytokines released in BALF and serum. The protective mechanism of CHQW may be related to the inhibition of the TLR4/NF-κB signaling pathway and NLRP3 activation. The main active ingredients of CHQW are flavonoids, organic acids, lignans, iridoids and phenylethanoid glycosides.
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Affiliation(s)
- Ying Zhou
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Qing-Xian Li
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; School of Pharmacy, Nanchang University, Nanchang 330006, China
| | - Zheng-Zheng Liao
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Yang Liu
- Department of Laboratory Medicine, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Ying Ouyang
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; School of Pharmacy, Nanchang University, Nanchang 330006, China
| | - Wen-Jing Jiang
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; School of Pharmacy, Nanchang University, Nanchang 330006, China
| | - Meng-Ting Tang
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; School of Pharmacy, Nanchang University, Nanchang 330006, China
| | - Jin-Fang Hu
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Wei Zhang
- Department of Respiratory, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
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Zhou R, Wu L, Jin N, Sha S, Ouyang Y. L-F001, a multifunctional fasudil-lipoic acid dimer, antagonizes hypoxic-ischemic brain damage by inhibiting the TLR4/MyD88 signaling pathway. Brain Behav 2023; 13:e3280. [PMID: 37822185 PMCID: PMC10726836 DOI: 10.1002/brb3.3280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/10/2023] [Accepted: 09/11/2023] [Indexed: 10/13/2023] Open
Abstract
INTRODUCTION Neonatal hypoxic-ischemic brain damage (HIBD) is a serious inflammatory injury. At present, the standard treatment for this disease is hypothermia therapy, and the effect of drug intervention is still limited. L-F001 is a compound of fasudil and lipoic acid. Previous in vitro experiments have confirmed that L-F001 has anti-inflammatory neuroprotective functions. However, its therapeutic effect on neonates with HIBD remains unknown. This study was aimed at exploring the therapeutic effect of L-F001 on HIBD rats. METHODS The newborn rats were divided into three groups: Sham operation group, HIBD group, and HIBD + L-F001 group. HE staining, Nissil staining, the immunofluorescence of iNOS and COX-2, ELISA (IL-1β, IL-6, TNF-α, and IL-10), and western blotting analyses were performed to determine the therapeutic effect of L-F001. Finally, we evaluated the growth and development of each group by measuring body weight. RESULTS The hippocampal structure of HIBD rats was disordered, and the Nissil body was small and shallow. The expressions of iNOS and COX-2 in HIBD rats were increased, whereas the expressions of IL-1β, IL-6, and TNF-α in plasma were upregulated, and the expression of IL-10 was decreased. L-F001 could improve the tissue structure and reduce the expression of iNOS and COX-2 in HIBD rats. Meanwhile, L-F001 could also reduce the expression of pro-inflammatory cytokines and restore the content of anti-inflammatory cytokines in plasma. We further found that the TLR4 pathway was activated after hypoxic-ischemia in neonatal rats. L-F001 could inhibit the activation of TLR4 pathway. Finally, we found that after L-F001 treatment, the body weight of HIBD rats increased significantly compared with the untreated group. CONCLUSIONS L-F001 antagonizes the inflammatory response after hypoxic-ischemia by inhibiting the activation of the TLR4 signaling pathway, thus playing a neuroprotective role. L-F001 may be a potential therapeutic agent for neonatal HIBD.
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Affiliation(s)
- Ruiyu Zhou
- Sun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
- The Affiliated Kashi HospitalSun Yat‐sen UniversityKashiChina
| | - Liqiang Wu
- Guangdong Provincial Emergency HospitalGuangzhouChina
| | - Ni Jin
- Sun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Sha Sha
- Sun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Ying Ouyang
- Sun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
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Zhang Y, Zhang H, Zhang H, Ouyang Y, Su R, Yang W, Huang B. Glioblastoma and Solitary Brain Metastasis: Differentiation by Integrating Demographic-MRI and Deep-Learning Radiomics Signatures. J Magn Reson Imaging 2023. [PMID: 37955154 DOI: 10.1002/jmri.29123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND Studies have shown that deep-learning radiomics (DLR) could help differentiate glioblastoma (GBM) from solitary brain metastasis (SBM), but whether integrating demographic-MRI and DLR features can more accurately distinguish GBM from SBM remains uncertain. PURPOSE To construct and validate a demographic-MRI deep-learning radiomics nomogram (DDLRN) integrating demographic-MRI and DLR signatures to differentiate GBM from SBM preoperatively. STUDY TYPE Retrospective. POPULATION Two hundred and thirty-five patients with GBM (N = 115) or SBM (N = 120), randomly divided into a training cohort (90 GBM and 98 SBM) and a validation cohort (25 GBM and 22 SBM). FIELD STRENGTH/SEQUENCE Axial T2-weighted fast spin-echo sequence (T2WI), T2-weighted fluid-attenuated inversion recovery sequence (T2-FLAIR), and contrast-enhanced T1-weighted spin-echo sequence (CE-T1WI) using 1.5-T and 3.0-T scanners. ASSESSMENT The demographic-MRI signature was constructed with seven imaging features ("pool sign," "irregular ring sign," "regular ring sign," "intratumoral vessel sign," the ratio of the area of peritumoral edema to the enhanced tumor, the ratio of the lesion area on T2-FLAIR to CE-T1WI, and the tumor location) and demographic factors (age and sex). Based on multiparametric MRI, radiomics and deep-learning (DL) models, DLR signature, and DDLRN were developed and validated. STATISTICAL TESTS The Mann-Whitney U test, Pearson test, least absolute shrinkage and selection operator, and support vector machine algorithm were applied for feature selection and construction of radiomics and DL models. RESULTS DDLRN showed the best performance in differentiating GBM from SBM with area under the curves (AUCs) of 0.999 and 0.947 in the training and validation cohorts, respectively. Additionally, the DLR signature (AUC = 0.938) outperformed the radiomics and DL models, and the demographic-MRI signature (AUC = 0.775) was comparable to the T2-FLAIR radiomics and DL models in the validation cohort (AUC = 0.762 and 0.749, respectively). DATA CONCLUSION DDLRN integrating demographic-MRI and DLR signatures showed excellent performance in differentiating GBM from SBM. LEVEL OF EVIDENCE 3 TECHNICAL EFFICACY: Stage 2.
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Affiliation(s)
- Yuze Zhang
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Hongbo Zhang
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Hanwen Zhang
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Ying Ouyang
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Ruru Su
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Wanqun Yang
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Biao Huang
- Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
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Chen B, Huang R, Xia T, Wang C, Xiao X, Lu S, Chen X, Ouyang Y, Deng X, Miao J, Zhao C, Wang L. The m6A reader IGF2BP3 preserves NOTCH3 mRNA stability to sustain Notch3 signaling and promote tumor metastasis in nasopharyngeal carcinoma. Oncogene 2023; 42:3564-3574. [PMID: 37853162 PMCID: PMC10673713 DOI: 10.1038/s41388-023-02865-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 09/30/2023] [Accepted: 10/04/2023] [Indexed: 10/20/2023]
Abstract
Metastasis remains the major cause of treatment failure in patients with nasopharyngeal carcinoma (NPC), in which sustained activation of the Notch signaling plays a critical role. N6-Methyladenosine (m6A)-mediated post-transcriptional regulation is involved in fine-tuning the Notch signaling output; however, the post-transcriptional mechanisms underlying NPC metastasis remain poorly understood. In the present study, we report that insulin-like growth factor 2 mRNA-binding proteins 3 (IGF2BP3) serves as a key m6A reader in NPC. IGF2BP3 expression was significantly upregulated in metastatic NPC and correlated with poor prognosis in patients with NPC. IGF2BP3 overexpression promoted, while IGF2BP3 downregulation inhibited tumor metastasis and the stemness phenotype of NPC cells in vitro and in vivo. Mechanistically, IGF2BP3 maintains NOTCH3 mRNA stability via suppression of CCR4-NOT complex-mediated deadenylation in an m6A-dependent manner, which sustains Notch3 signaling activation and increases the transcription of stemness-associated downstream genes, eventually promoting tumor metastasis. Our findings highlight the pro-metastatic function of the IGF2BP3/Notch3 axis and revealed the precise role of IGF2BP3 in post-transcriptional regulation of NOTCH3, suggesting IGF2BP3 as a novel prognostic biomarker and potential therapeutic target in NPC metastasis.
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Affiliation(s)
- Boyu Chen
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China
- Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Runda Huang
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Tianliang Xia
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China
- Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Chunyang Wang
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510060, P. R. China
| | - Xiao Xiao
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Shunzhen Lu
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Xiangfu Chen
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China
- Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Ying Ouyang
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China
- Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Xiaowu Deng
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Jingjing Miao
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China.
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China.
| | - Chong Zhao
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China.
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China.
| | - Lin Wang
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China.
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China.
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He L, Chen J, Deng P, Huang S, Liu P, Wang C, Huang X, Li Y, Chen B, Shi D, Xiao Y, Chen X, Ouyang Y, Song L, Lin C. Lysosomal cyst(e)ine storage potentiates tolerance to oxidative stress in cancer cells. Mol Cell 2023; 83:3502-3519.e11. [PMID: 37751742 DOI: 10.1016/j.molcel.2023.08.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 07/17/2023] [Accepted: 08/30/2023] [Indexed: 09/28/2023]
Abstract
Cyst(e)ine is a key precursor for the synthesis of glutathione (GSH), which protects cancer cells from oxidative stress. Cyst(e)ine is stored in lysosomes, but its role in redox regulation is unclear. Here, we show that breast cancer cells upregulate major facilitator superfamily domain containing 12 (MFSD12) to increase lysosomal cyst(e)ine storage, which is released by cystinosin (CTNS) to maintain GSH levels and buffer oxidative stress. We find that mTORC1 regulates MFSD12 by directly phosphorylating residue T254, while mTORC1 inhibition enhances lysosome acidification that activates CTNS. This switch modulates lysosomal cyst(e)ine levels in response to oxidative stress, fine-tuning redox homeostasis to enhance cell fitness. MFSD12-T254A mutant inhibits MFSD12 function and suppresses tumor progression. Moreover, MFSD12 overexpression correlates with poor neoadjuvant chemotherapy response and prognosis in breast cancer patients. Our findings reveal the critical role of lysosomal cyst(e)ine storage in adaptive redox homeostasis and suggest that MFSD12 is a potential therapeutic target.
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Affiliation(s)
- Lixin He
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Jinxin Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Pinwei Deng
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Shumei Huang
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Pian Liu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chanjuan Wang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xinjian Huang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Yue Li
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Boyu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Dongni Shi
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Yunyun Xiao
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xiangfu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Ying Ouyang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Libing Song
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Institute of Oncology, Tumor Hospital, Guangzhou Medical University, Guangzhou 510080, China
| | - Chuyong Lin
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; Guangdong Esophageal Cancer Institute, Guangzhou 510060, China.
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10
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Miao J, Chen B, Xiao Y, Huang R, Xiao X, Lu S, Zhang L, Wang X, Ouyang Y, Chen X, Chen Q, Xiang Y, Guo X, Deng X, Wang L, Mai H, Zhao C. Long noncoding RNA LINC00173 induces radioresistance in nasopharyngeal carcinoma via inhibiting CHK2/P53 pathway. Cancer Gene Ther 2023; 30:1249-1259. [PMID: 37258811 DOI: 10.1038/s41417-023-00634-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 05/04/2023] [Accepted: 05/19/2023] [Indexed: 06/02/2023]
Abstract
Radiotherapy is the backbone of nasopharyngeal carcinoma (NPC), nearly 11-17% NPC patients suffered local relapse and 18-37% suffered distant metastasis mainly due to radioresistance. Therefore, the key of improving patients' survivals is to investigate the mechanism of radioresistance. In this study, we revealed that the expression level of long intergenic nonprotein coding RNA 173 (LINC00173) was significantly increased in the radioresistant NPC patients' tumour tissues compared with the radiosensitive patients by RNA-sequencing, which also predict poor prognosis in NPC. Overexpression of LINC00173 induced radioresistance of NPC cells in vitro and in vivo. Mechanistically, LINC00173 bound with checkpoint kinase 2 (CHK2) in nucleus, and impaired the irradiation-induced CHK2 phosphorylation, then suppressed the activation of P53 signalling pathway, which eventually inhibiting apoptosis and leading to radioresistance in NPC cells. In summary, LINC00173 decreases the occurrence of apoptosis through inhibiting the CHK2/P53 pathway, leads to NPC radioresistance and could be considered as a novel predictor and therapeutic target in NPC.
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Affiliation(s)
- Jingjing Miao
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China
| | - Boyu Chen
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China
| | - Yunyun Xiao
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China
| | - Runda Huang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China
| | - Xiao Xiao
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China
| | - Shunzhen Lu
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China
| | - Lu Zhang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China
| | - Xuguang Wang
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China
| | - Ying Ouyang
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China
| | - Xiangfu Chen
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China
| | - Qiuyan Chen
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China
| | - Yanqun Xiang
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China
| | - Xiang Guo
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China
| | - Xiaowu Deng
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China
| | - Lin Wang
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China.
| | - Haiqiang Mai
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China.
| | - Chong Zhao
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, 510060, China.
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11
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Mao Y, Jiang X, Guo P, Ouyang Y, Chen X, Xia M, Wu L, Tang Z, Liang T, Li Y, He M. ZXDC enhances cervical cancer metastasis through IGF2BP3-mediated activation of RhoA/ ROCK signaling. iScience 2023; 26:107447. [PMID: 37599824 PMCID: PMC10433122 DOI: 10.1016/j.isci.2023.107447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 04/17/2023] [Accepted: 07/18/2023] [Indexed: 08/22/2023] Open
Abstract
Metastasis in cervical cancer (CC) has a significant negative impact on patient survival, highlighting the urgent need for investigation in this area. In this study, we identified significant overexpression of zinc finger, X-linked, duplicated family member C (ZXDC) in CC tissue with metastasis, which correlates with poor outcomes for CC patients. We observed that overexpression of ZXDC promotes, while silencing of ZXDC inhibits the metastasis of CC cells both in vitro and in vivo. Additionally, our research demonstrated that ZXDC activated RhoA/ROCK signaling pathway, leading to enhanced cytoskeleton remodeling in CC cells. Besides, we found that IGF2BP3 plays an essential role in the activation of ZXDC on the RhoA/ROCK signaling pathway by stabilizing RhoA mRNA. These findings reveal a mechanism whereby ZXDC promotes the cervical cancer metastasis by targeting IGF2BP3/RhoA/ROCK pathway.
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Affiliation(s)
- Yifang Mao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Xingyu Jiang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Peng Guo
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Ying Ouyang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xiangfu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Meng Xia
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Lixin Wu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Zihao Tang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Tianyi Liang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Yue Li
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Mian He
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
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Yang M, Li Y, Kong L, Huang S, He L, Liu P, Mo S, Lu X, Lin X, Xiao Y, Shi D, Huang X, Chen B, Chen X, Ouyang Y, Li J, Lin C, Song L. Inhibition of DPAGT1 suppresses HER2 shedding and trastuzumab resistance in human breast cancer. J Clin Invest 2023; 133:e164428. [PMID: 37463446 DOI: 10.1172/jci164428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 05/23/2023] [Indexed: 07/20/2023] Open
Abstract
Human epidermal growth factor receptor 2-targeted (HER2-targeted) therapy is the mainstay of treatment for HER2+ breast cancer. However, the proteolytic cleavage of HER2, or HER2 shedding, induces the release of the target epitope at the ectodomain (ECD) and the generation of a constitutively active intracellular fragment (p95HER2), impeding the effectiveness of anti-HER2 therapy. Therefore, identifying key regulators in HER2 shedding might provide promising targetable vulnerabilities against resistance. In the current study, we found that upregulation of dolichyl-phosphate N-acetylglucosaminyltransferase (DPAGT1) sustained high-level HER2 shedding to confer trastuzumab resistance, which was associated with poor clinical outcomes. Upon trastuzumab treatment, the membrane-bound DPAGT1 protein was endocytosed via the caveolae pathway and retrogradely transported to the ER, where DPAGT1 induced N-glycosylation of the sheddase - ADAM metallopeptidase domain 10 (ADAM10) - to ensure its expression, maturation, and activation. N-glycosylation of ADAM10 at N267 protected itself from ER-associated protein degradation and was essential for DPAGT1-mediated HER2 shedding and trastuzumab resistance. Importantly, inhibition of DPAGT1 with tunicamycin acted synergistically with trastuzumab treatment to block HER2 signaling and reverse resistance. These findings reveal a prominent mechanism for HER2 shedding and suggest that targeting DPAGT1 might be a promising strategy against trastuzumab-resistant breast cancer.
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Affiliation(s)
- Muwen Yang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and
| | - Yue Li
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and
| | - Lingzhi Kong
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and
| | - Shumei Huang
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong China
| | - Lixin He
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and
| | - Pian Liu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shuang Mo
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong China
| | - Xiuqing Lu
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and
| | - Xi Lin
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and
| | - Yunyun Xiao
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and
| | - Dongni Shi
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and
| | - Xinjian Huang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and
| | - Boyu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and
| | - Xiangfu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and
| | - Ying Ouyang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and
| | - Jun Li
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong China
| | - Chuyong Lin
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and
| | - Libing Song
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and
- Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Institute of Oncology, Tumor Hospital, Guangzhou Medical University, Guangzhou, China
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Li Y, Chen B, Jiang X, Li Y, Wang X, Huang S, Wu X, Xiao Y, Shi D, Huang X, He L, Chen X, Ouyang Y, Li J, Song L, Lin C. A Wnt-induced lncRNA-DGCR5 splicing switch drives tumor-promoting inflammation in esophageal squamous cell carcinoma. Cell Rep 2023; 42:112542. [PMID: 37210725 DOI: 10.1016/j.celrep.2023.112542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 04/04/2023] [Accepted: 05/03/2023] [Indexed: 05/23/2023] Open
Abstract
Alternative splicing (AS) is a critical mechanism for the aberrant biogenesis of long non-coding RNA (lncRNA). Although the role of Wnt signaling in AS has been implicated, it remains unclear how it mediates lncRNA splicing during cancer progression. Herein, we identify that Wnt3a induces a splicing switch of lncRNA-DGCR5 to generate a short variant (DGCR5-S) that correlates with poor prognosis in esophageal squamous cell carcinoma (ESCC). Upon Wnt3a stimulation, active nuclear β-catenin acts as a co-factor of FUS to facilitate the spliceosome assembly and the generation of DGCR5-S. DGCR5-S inhibits TTP's anti-inflammatory activity by protecting it from PP2A-mediated dephosphorylation, thus fostering tumor-promoting inflammation. Importantly, synthetic splice-switching oligonucleotides (SSOs) disrupt the splicing switch of DGCR5 and potently suppress ESCC tumor growth. These findings uncover the mechanism for Wnt signaling in lncRNA splicing and suggest that the DGCR5 splicing switch may be a targetable vulnerability in ESCC.
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Affiliation(s)
- Yue Li
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Boyu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xingyu Jiang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Yudong Li
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xin Wang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Shumei Huang
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Xuxia Wu
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Yunyun Xiao
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Dongni Shi
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xinjian Huang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Lixin He
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xiangfu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Ying Ouyang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Jun Li
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China.
| | - Libing Song
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Institute of Oncology, Tumor Hospital, Guangzhou Medical University, Guangzhou 511436, China.
| | - Chuyong Lin
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.
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14
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Ouyang Y, Huang Y, Parajuli PB, Wan Y, Grace JM, Caldwell PV, Trettin C. Projection of Sediment Loading from Pearl River Basin, Mississippi into Gulf of Mexico under a Future Climate with Afforestation. Climate (Basel) 2023; 11:1-13. [PMID: 37593169 PMCID: PMC10430695 DOI: 10.3390/cli11050108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
Sediment load in rivers is recognized as both a carrier and a potential source of contaminants. Sediment deposition significantly changes river flow and morphology, thereby affecting stream hydrology and aquatic life. We projected sediment load from the Pearl River basin (PRB), Mississippi into the northern Gulf of Mexico under a future climate with afforestation using the SWAT (Soil and Water Assessment Tool)-based HAWQS (Hydrologic and Water Quality System) model. Three simulation scenarios were developed in this study: (1) the past scenario for estimating the 40-year sediment load from 1981 to 2020; (2) the future scenario for projecting the 40-year sediment load from 2025 to 2064, and (3) the future afforestation scenario that was the same as the future scenario, except for converting the rangeland located in the middle section of the Pearl River watershed of the PRB into the mixed forest land cover. Simulations showed a 16% decrease in sediment load for the future scenario in comparison to the past scenario due to the decrease in future surface runoff. Over both the past and future 40 years, the monthly maximum and minimum sediment loads occurred, respectively, in April and August; whereas the seasonal sediment load followed the order: spring > winter > summer > fall. Among the four seasons, winter and spring accounted for about 86% of sediment load for both scenarios. Under the future 40-year climate conditions, a 10% reduction in annual average sediment load with afforestation was observed in comparison to without afforestation. This study provides new insights into how a future climate with afforestation would affect sediment load into the northern Gulf of Mexico.
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Affiliation(s)
- Ying Ouyang
- USDA Forest Service, Center for Bottomland Hardwoods Research, Southern Research Station, 775 Stone Blvd., Thompson Hall, Room 309, Mississippi State, MS 39762, USA
| | - Yanbo Huang
- Genetics and Sustainable Agriculture Research Unit, Crop Science Research Laboratory, USDA-Agricultural Research Service, 810 Highway 12 East, Mississippi State, MS 39762, USA
| | - Prem B. Parajuli
- Department of Agricultural and Biological Engineering, Mississippi State University, Mississippi State, MS 39762, USA
| | - Yongshan Wan
- Center for Environmental Measurement and Modeling, US EPA, 1 Sabine Island Drive, Gulf Breeze, FL 32561, USA
| | - Johnny M. Grace
- USDA Forest Service, Center for Forest Watershed Research, Southern Research Station, 1740 S. Martin Luther King Jr. Blvd., Perry-Paige Bldg., Suite 303 North, Tallahassee, FL 32307, USA
| | - Peter V. Caldwell
- USDA Forest Service, Center for Integrated Forest Science, Southern Research Station, 3160 Coweeta Lab Road, Otto, NC 28763, USA
| | - Carl Trettin
- USDA Forest Service enter for Forest Watershed Research, 3734 Hwy 402, Cordesville, SC 29434, USA
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15
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Sun Q, Zhang X, Ouyang Y, Yu P, Man Y, Guo S, Liu S, Chen Y, Wang Y, Tan X. Appressoria Formation in Phytopathogenic Fungi Suppressed by Antimicrobial Peptides and Hybrid Peptides from Black Soldier Flies. Genes (Basel) 2023; 14:genes14051096. [PMID: 37239456 DOI: 10.3390/genes14051096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/27/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Antimicrobial peptides (AMPs) from black solider flies (Hermetia illucens, BSF) exhibiting broad-spectrum antimicrobial activity are the most promising green substitutes for preventing the infection of phytopathogenic fungi; therefore, AMPs have been a focal topic of research. Recently, many studies have focused on the antibacterial activities of BSF AMPs against animal pathogens; however, currently, their antifungal activities against phytopathogenic fungi remain unclear. In this study, 7 AMPs selected from 34 predicted AMPs based on BSF metagenomics were artificially synthesized. When conidia from the hemibiotrophic phytopathogenic fungi Magnaporthe oryzae and Colletotrichum acutatum were treated with the selected AMPs, three selected AMPs-CAD1, CAD5, and CAD7-showed high appressorium formation inhibited by lengthened germ tubes. Additionally, the MIC50 concentrations of the inhibited appressorium formations were 40 μM, 43 μM, and 43 μM for M. oryzae, while 51 μM, 49 μM, and 44 μM were observed for C. acutatum, respectively. A tandem hybrid AMP named CAD-Con comprising CAD1, CAD5, and CAD7 significantly enhanced antifungal activities, and the MIC50 concentrations against M. oryzae and C. acutatum were 15 μM and 22 μM, respectively. In comparison with the wild type, they were both significantly reduced in terms of virulence when infection assays were performed using the treated conidia of M. oryzae or C. acutatum by CAD1, CAD5, CAD7, or CAD-Con. Meanwhile, their expression levels of CAD1, CAD5, and CAD7 could also be activated and significantly increased after the BSF larvae were treated with the conidia of M. oryzae or C. acutatum, respectively. To our knowledge, the antifungal activities of BSF AMPs against plant pathogenic fungi, which help us to seek potential AMPs with antifungal activities, provide proof of the effectiveness of green control strategies for crop production.
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Affiliation(s)
- Qianlong Sun
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Xin Zhang
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China
| | - Ying Ouyang
- College of Plant Science, Hunan Biological and Electromechanical Polytechnic, Changsha 410127, China
| | - Pingzhong Yu
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
| | - Yilong Man
- Agricultural Biotechnology Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Sheng Guo
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China
| | - Sizhen Liu
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China
| | - Yue Chen
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China
| | - Yunsheng Wang
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China
| | - Xinqiu Tan
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China
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16
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Gong F, Hu H, Ouyang Y, Liao ZZ, Kong Y, Hu JF, He H, Zhou Y. Physiologically-based pharmacokinetic modeling-guided rational combination of tacrolimus and voriconazole in patients with different CYP3A5 and CYP2C19 alleles. Toxicol Appl Pharmacol 2023; 466:116475. [PMID: 36931438 DOI: 10.1016/j.taap.2023.116475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/11/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023]
Abstract
The drug-drug interactions (DDIs) between tacrolimus and voriconazole are highly variable among individuals. We aimed to develop a physiologically based pharmacokinetic (PBPK) model to predict the DDIs in people with different CYP3A5 and CYP2C19 alleles. First, pharmacokinetic data of humans receiving tacrolimus with or without voriconazole from the literature were used to construct and validate the PBPK model. Thereafter, we developed a model incorporating the metabolism of voriconazole mediated by CYP2C19 and the inhibitory effect of voriconazole on CYP3A4/5. Finally, the model was used to evaluate the dose adjustment of tacrolimus in people with different CYP3A5 and CYP2C19 alleles. When tacrolimus was administered alone (3 mg PO, single dose), the predicted AUC0-∞ of tacrolimus in CYP3A5 nonexpressers (19.22) was 3.5-fold higher than that in expressers (5.48). Following voriconazole (200 mg PO, bid) administration in human with different CYP2C19 genotypes, the AUC0-∞ of tacrolimus increased by 5.1- to 8.3-fold in CYP3A5 expressers and by 5.3- to 10.2-fold in CYP3A5 nonexpressers. The lower the gene expression level of CYP2C19 in the population, the higher the exposure to tacrolimus. When tacrolimus was combined with voriconazole (200 mg, bid; 400 mg, bid, on Day 1), the final model simulations suggested that the dose regimen of tacrolimus should be regulated to 0.15 mg/kg/day (qd) in CYP3A5 expressers with different CYP2C19 genotypes. For CYP3A5 nonexpressers, the dosing schedule of tacrolimus should be modified to 0.05 mg/kg/24 h for patients with 2C19 EM, 0.05 mg/kg/48 h for 2C19 IM and 0.05 mg/kg/72 h for 2C19 PM. In conclusion, a PBPK model with CYP3A5 and CYP2C19 polymorphisms was successfully established, providing more insights regarding the DDIs between tacrolimus and voriconazole to guide the clinical use of tacrolimus.
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Affiliation(s)
- Fei Gong
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Center for Molecular Diagnosis and Precision Medicine, Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; School of Pharmacy, Nanchang University, Nanchang 330006, China
| | - Huihui Hu
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China
| | - Ying Ouyang
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; School of Pharmacy, Nanchang University, Nanchang 330006, China
| | - Zheng-Zheng Liao
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Ying Kong
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Jin-Fang Hu
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Hua He
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China.
| | - Ying Zhou
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
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17
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Du L, Han Y, Zhu Y, Xu Y, Bai X, Ouyang Y, Luo Y, Shu X. Reaction Pathway of 1-Decene Cracking to Produce Light Olefins over H-ZSM-5 at Ultrahigh Temperature. ACS Omega 2023; 8:7093-7101. [PMID: 36844522 PMCID: PMC9948201 DOI: 10.1021/acsomega.2c08012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
The effect of reaction temperature and weight hourly space velocity (WHSV) on the reaction of 1-decene cracking to ethylene and propylene over H-ZSM-5 zeolite was investigated. Also, the thermal cracking reaction of 1-decene was studied by cracking over quartz sand as blank. It was observed that 1-decene undergoes a significant thermal cracking reaction above 600 °C over quartz sand. In the range of 500-750 °C, the conversion remained above 99% for 1-decene cracking over H-ZSM-5, and the catalytic cracking dominated even at 750 °C. With the increase in temperature, the yields of ethylene and propylene gradually increased, and the yields of alkanes and aromatics also increased. The low WHSV was favorable for the yield of light olefins. With the increase of the WHSV, the yields of ethylene and propylene decrease. However, at low WHSV, secondary reactions were accelerated, and the yields of alkanes and aromatics increased significantly. In addition, the possible main and side reaction routes of the 1-decene cracking reaction were proposed based on product distribution.
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18
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Zhou L, Ouyang Y, Xing E, Gao X, Yuan H, Luo Y, Shu X. Preparation of the Al 13 Sol via Electrodialysis as an Effective Binder of FCC Catalysts. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c02267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- Lina Zhou
- State Key Laboratory of Catalytic Materials and Reaction Engineering, Research Institute of Petroleum Processing, SINOPEC, No. 18, Xueyuan Road, Beijing 100083, P. R. China
| | - Ying Ouyang
- State Key Laboratory of Catalytic Materials and Reaction Engineering, Research Institute of Petroleum Processing, SINOPEC, No. 18, Xueyuan Road, Beijing 100083, P. R. China
| | - Enhui Xing
- State Key Laboratory of Catalytic Materials and Reaction Engineering, Research Institute of Petroleum Processing, SINOPEC, No. 18, Xueyuan Road, Beijing 100083, P. R. China
| | - Xiuzhi Gao
- State Key Laboratory of Catalytic Materials and Reaction Engineering, Research Institute of Petroleum Processing, SINOPEC, No. 18, Xueyuan Road, Beijing 100083, P. R. China
| | - Hui Yuan
- State Key Laboratory of Catalytic Materials and Reaction Engineering, Research Institute of Petroleum Processing, SINOPEC, No. 18, Xueyuan Road, Beijing 100083, P. R. China
| | - Yibin Luo
- State Key Laboratory of Catalytic Materials and Reaction Engineering, Research Institute of Petroleum Processing, SINOPEC, No. 18, Xueyuan Road, Beijing 100083, P. R. China
| | - Xingtian Shu
- State Key Laboratory of Catalytic Materials and Reaction Engineering, Research Institute of Petroleum Processing, SINOPEC, No. 18, Xueyuan Road, Beijing 100083, P. R. China
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19
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Wang X, Li Y, Xiao Y, Huang X, Wu X, Zhao Z, Yang M, Kong L, Shi D, Chen X, Ouyang Y, Chen X, Lin C, Li J, Song L, Lin Y, Guan J. The phospholipid flippase ATP9A enhances macropinocytosis to promote nutrient starvation tolerance in hepatocellular carcinoma. J Pathol 2023; 260:17-31. [PMID: 36715683 DOI: 10.1002/path.6059] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 01/12/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023]
Abstract
Macropinocytosis is an effective strategy to mitigate nutrient starvation. It can fuel cancer cell growth in nutrient-limited conditions. However, whether and how macropinocytosis contributes to the rapid proliferation of hepatocellular carcinoma cells, which frequently experience an inadequate nutrient supply, remains unclear. Here, we demonstrated that nutrient starvation strongly induced macropinocytosis in some hepatocellular carcinoma cells. It allowed the cells to acquire extracellular nutrients and supported their energy supply to maintain rapid proliferation. Furthermore, we found that the phospholipid flippase ATP9A was critical for regulating macropinocytosis in hepatocellular carcinoma cells and that high ATP9A levels predicted a poor outcome for patients with hepatocellular carcinoma. ATP9A interacted with ATP6V1A and facilitated its transport to the plasma membrane, which promoted plasma membrane cholesterol accumulation and drove RAC1-dependent macropinocytosis. Macropinocytosis inhibitors significantly suppressed the energy supply and proliferation of hepatocellular carcinoma cells characterised by high ATP9A expression under nutrient-limited conditions. These results have revealed a novel mechanism that overcomes nutrient starvation in hepatocellular carcinoma cells and have identified the key regulator of macropinocytosis in hepatocellular carcinoma. © 2023 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Xiaoqing Wang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| | - Yue Li
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, PR China
| | - Yunyun Xiao
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, PR China
| | - Xinjian Huang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, PR China
| | - Xianqiu Wu
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, PR China.,Clinical Experimental Center, Jiangmen Key Laboratory of Clinical Biobanks and Translational Research, Jiangmen Central Hospital, Jiangmen, PR China
| | - Zhen Zhao
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, PR China.,School of Medicine, South China University of Technology, Guangzhou, PR China
| | - Muwen Yang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, PR China
| | - Lingzhi Kong
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, PR China
| | - Dongni Shi
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, PR China
| | - Xin Chen
- Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences; Guangzhou Institute of Oncology, Tumor Hospital, Guangzhou Medical University, Guangzhou, PR China
| | - Ying Ouyang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, PR China
| | - Xiangfu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, PR China
| | - Chuyong Lin
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, PR China
| | - Jun Li
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, PR China
| | - Libing Song
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, PR China
| | - Ye Lin
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, PR China
| | - Jian Guan
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, PR China.,Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou, PR China
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20
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Shah H, Yanishevski D, Ouyang Y, Lieberman JA. The health disparities of early introduction of allergenic foods. Ann Allergy Asthma Immunol 2023; 130:111-112. [PMID: 36241019 DOI: 10.1016/j.anai.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/28/2022] [Accepted: 10/03/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Heema Shah
- University of Tennessee Health Science Center and LeBonheur Children's Hospital, Memphis, Tennessee
| | - David Yanishevski
- University of Tennessee Health Science Center and LeBonheur Children's Hospital, Memphis, Tennessee
| | - Ying Ouyang
- University of Tennessee Health Science Center and LeBonheur Children's Hospital, Memphis, Tennessee
| | - Jay Adam Lieberman
- University of Tennessee Health Science Center and LeBonheur Children's Hospital, Memphis, Tennessee.
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21
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Huang X, Shi D, Zou X, Wu X, Huang S, Kong L, Yang M, Xiao Y, Chen B, Chen X, Ouyang Y, Song L, Jian Y, Lin C. BAG2 drives chemoresistance of breast cancer by exacerbating mutant p53 aggregate. Theranostics 2023; 13:339-354. [PMID: 36593950 PMCID: PMC9800719 DOI: 10.7150/thno.78492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 11/29/2022] [Indexed: 12/23/2022] Open
Abstract
Rationale: Chemoresistance is a major challenge in the clinical management of patients with breast cancer. Mutant p53 proteins tend to form aggregates that promote tumorigenesis in cancers. We here aimed to explore the mechanism for the generation of mutant p53 aggregates in breast cancer and assess its role in inducing chemoresistance. Methods: Expression of BCL2-associated athanogene 2 (BAG2) was evaluated by qRT-PCR, western blotting, and immunohistochemistry in breast cancer patient specimens. The significance of BAG2 expression in prognosis was assessed by Kaplan-Meier survival analysis and the Cox regression model. The roles of BAG2 in facilitating the formation of mutant p53 aggregates were analyzed by co-immunoprecipitation, immunofluorescence, and semi-denaturing detergent-agarose gel electrophoresis assays. The effects of BAG2 on the chemoresistance of breast cancer were demonstrated by cell function assays and mice tumor models. Results: In the present study, we found that BAG2 was significantly upregulated in relapse breast cancer patient tissues and high BAG2 was associated with a worse prognosis. BAG2 localized in mutant p53 aggregates and interacted with misfolded p53 mutants. BAG2 exacerbated the formation of the aggregates and recruited HSP90 to promote the propagation and maintenance of the aggregates. Consequently, BAG2-mediated mutant p53 aggregation inhibited the mitochondrial apoptosis pathway, leading to chemoresistance in breast cancer. Importantly, silencing of BAG2 or pharmacological targeting of HSP90 substantially reduced the aggregates and increased the sensitivity of chemotherapy in breast cancer. Conclusion: These findings reveal a significant role of BAG2 in the chemoresistance of breast cancer via exacerbating mutant p53 aggregates and suggest that BAG2 may serve as a potential therapeutic target for breast cancer patients with drug resistance.
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Affiliation(s)
- Xinjian Huang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Dongni Shi
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xuxiazi Zou
- Department of Breast Surgery, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xuxia Wu
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Shumei Huang
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Lingzhi Kong
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Muwen Yang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Yunyun Xiao
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Boyu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xiangfu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Ying Ouyang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Libing Song
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences; Guangzhou Institute of Oncology, Tumor Hospital, Guangzhou Medical University, 511436, Guangzhou, China.,✉ Corresponding author: Chuyong Lin, Sun Yat-sen University Cancer Center, Guangzhou 510060, China. E-mail: ; or Yunting Jian, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China ; or Libing Song, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.
| | - Yunting Jian
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Department of Pathology, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China.,✉ Corresponding author: Chuyong Lin, Sun Yat-sen University Cancer Center, Guangzhou 510060, China. E-mail: ; or Yunting Jian, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China ; or Libing Song, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.
| | - Chuyong Lin
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,✉ Corresponding author: Chuyong Lin, Sun Yat-sen University Cancer Center, Guangzhou 510060, China. E-mail: ; or Yunting Jian, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China ; or Libing Song, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.
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22
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Xiao Y, Li Y, Shi D, Wang X, Dai S, Yang M, Kong L, Chen B, Huang X, Lin C, Liao W, Xu B, Chen X, Wang L, Chen X, Ouyang Y, Liu G, Li H, Song L. MEX3C-Mediated Decay of SOCS3 mRNA Promotes JAK2/STAT3 Signaling to Facilitate Metastasis in Hepatocellular Carcinoma. Cancer Res 2022; 82:4191-4205. [PMID: 36112698 DOI: 10.1158/0008-5472.can-22-1203] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 08/02/2022] [Accepted: 09/13/2022] [Indexed: 12/24/2022]
Abstract
Tumor metastasis is one of the major causes of high mortality in patients with hepatocellular carcinoma (HCC). Sustained activation of STAT3 signaling plays a critical role in HCC metastasis. RNA binding protein (RBP)-mediated posttranscriptional regulation is involved in the precise control of signal transduction, including STAT3 signaling. In this study, we investigated whether RBPs are important regulators of HCC metastasis. The RBP MEX3C was found to be significantly upregulated in highly metastatic HCC and correlated with poor prognosis in HCC. Mechanistically, MEX3C increased JAK2/STAT3 pathway activity by downregulating SOCS3, a major negative regulator of JAK2/STAT3 signaling. MEX3C interacted with the 3'UTR of SOCS3 and recruited CNOT7 to ubiquitinate and accelerate decay of SOCS3 mRNA. Treatment with MEX3C-specific antisense oligonucleotide significantly inhibited JAK2/STAT3 pathway activation, suppressing HCC migration in vitro and metastasis in vivo. These findings highlight a novel mRNA decay-mediated mechanism for the disruption of SOCS3-driven negative regulation of JAK2/STAT3 signaling, suggesting MEX3C may be a potential prognostic biomarker and promising therapeutic target in HCC. SIGNIFICANCE This study reveals that RNA-binding protein MEX3C induces SOCS3 mRNA decay to promote JAK2/STAT3 activation and tumor metastasis in hepatocellular carcinoma, identifying MEX3C targeting as a potential approach for treating metastatic disease.
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Affiliation(s)
- Yunyun Xiao
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yue Li
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Dongni Shi
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xiaoqing Wang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shuqin Dai
- Department of Medicinal Laboratory, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Muwen Yang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Lingzhi Kong
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Boyu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xinjian Huang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Chuyong Lin
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Wenting Liao
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Benke Xu
- Department of Human Anatomy, School of Basic Medical Sciences, Yangtze University, Jingzhou, China
| | - Xin Chen
- Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences; Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Lishuai Wang
- Department of Medical Oncology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Xiangfu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Ying Ouyang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Guozhen Liu
- School of Medicine, The Chinese University of Hong Kong, Shenzhen, China
| | - Heping Li
- Department of Medical Oncology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Libing Song
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences; Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
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Yang M, Chen B, Kong L, Chen X, Ouyang Y, Bai J, Yu D, Zhang H, Li X, Zhang D. HMMR promotes peritoneal implantation of gastric cancer by increasing cell-cell interactions. Discov Oncol 2022; 13:81. [PMID: 36002694 PMCID: PMC9402864 DOI: 10.1007/s12672-022-00543-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 07/11/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Distant metastasis is the prominent factor for cancer-induced death of gastric cancer in which peritoneum is one of the dominating targets of gastric cancer metastasis. However, there is still a lack of effective predictive indicators and treatment methods for gastric cancer patients with peritoneal metastasis. METHODS A clustering assay was used to investigate the cell aggregates formation ability. While the soft agar assay and anoikis assay were performed to detect the anchorage-independent growth and anoikis-resistant ability respectively. Luciferase activity assay, western blotting and immunofluorescence were used to explore the effect of HMMR on AKT signaling activity. The peritoneal implantation model was examined to explore the role of HMMR in vivo. RESULTS Silencing of HMMR expression markedly reduced the peritoneal metastasis of gastric cancer cells through reducing cell-cell interactions. Mechanistically, HA-HMMR could activate Akt signaling, thus succeeding in distant colonization and metastatic outgrowth. Importantly, inducible depletion of HMMR significantly abrogates peritoneal implantation of gastric cancer in vitro and in vivo. CONCLUSION Our study highlights that HMMR promotes peritoneal implantation of gastric cancer. A better understanding of HMMR's functions and mechanism might provide a novel therapeutic target and prognostic marker for metastatic gastric cancer.
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Affiliation(s)
- Muwen Yang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, China
| | - Boyu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, China
| | - Lingzhi Kong
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, China
| | - Xiangfu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, China
| | - Ying Ouyang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, China
| | - Jiewen Bai
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, China
| | - Donglin Yu
- Academy of Traditional Chinese and Western Medicine, Binzhou Medical University, Yantai, China
| | - Huizhong Zhang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, China.
| | - Xinghua Li
- Department of Radiotherapy, Yantai Yuhuangding Hospital, Yantai, Shandong, China.
| | - Dongsheng Zhang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, China.
- Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, People's Republic of China.
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Chen S, Yang M, Wang C, Ouyang Y, Chen X, Bai J, Hu Y, Song M, Zhang S, Zhang Q. Corrigendum to "Forkhead box D1 promotes EMT and chemoresistance by upregulating lncRNA CYTOR in oral squamous cell carcinoma" [Canc. Lett. 503 (2021) 43-53]. Cancer Lett 2022; 537:215688. [PMID: 35459579 DOI: 10.1016/j.canlet.2022.215688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Shuwei Chen
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China; State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Muwen Yang
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China; Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Chunyang Wang
- Zhujiang New Town Dental Clinic, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510060, China
| | - Ying Ouyang
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China; Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Xiangfu Chen
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China; Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Jiewen Bai
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China; Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Yameng Hu
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, China
| | - Ming Song
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China; State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China.
| | - Siyi Zhang
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China; Department of Otorhinolaryngology, Guangdong Provincial People's Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China.
| | - Quan Zhang
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China; State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China.
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25
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Cai P, Ouyang Y, Lin G, Peng Y, Qin J, Li X, Gong F. Pregnancy outcome after in-vitro fertilization/intracytoplasmic sperm injection in women with congenital uterus didelphys. Ultrasound Obstet Gynecol 2022; 59:543-549. [PMID: 34423487 DOI: 10.1002/uog.24750] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 07/29/2021] [Accepted: 08/05/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE To investigate the pregnancy and obstetric outcomes of patients with congenital uterus didelphys who achieved clinical pregnancy after in-vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI). METHODS This was a retrospective matched-cohort study of 83 infertile patients with uterus didelphys who underwent IVF/ICSI and achieved clinical pregnancy from January 2005 to December 2018 at our center. For each patient in the study group, three control patients with normal uterine morphology who underwent IVF/ICSI in 2018 were selected randomly. Patients in the two groups were matched for number of gestational sacs, maternal age, infertility type, cause of infertility, fertilization method, endometrial thickness 1 day before embryo transfer and number of embryos transferred. The classification of congenital uterine anomalies was based on the American Fertility Society system (1988). The pregnancy and obstetric outcomes of the didelphic and control groups were compared separately for singleton and twin pregnancies, and for all pregnancies combined. RESULTS In singleton pregnancies, women with uterus didelphys had increased risk of preterm birth (odds ratio (OR), 4.68; rate difference (RD), 0.14; P < 0.001), Cesarean section (OR, 2.80; RD, 0.17; P = 0.016) and birth weight < 2500 g (OR, 4.06; RD, 0.10; P = 0.017) compared to women with normal uterine morphology. In twin pregnancies, the presence of uterus didelphys was associated with increased risk of preterm delivery (OR, 4.79; RD, 0.37; P = 0.006), perinatal mortality (OR, 3.16; RD, 0.19; P = 0.043) and birth weight < 2500 g (OR, 9.57; RD, 0.35; P = 0.001). CONCLUSIONS The presence of uterus didelphys was associated with significantly increased risk of some adverse pregnancy outcomes compared to pregnancies with normal uterine morphology in women who underwent IVF/ICSI. A twin pregnancy in women with uterus didelphys was associated with worse perinatal outcome. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- P Cai
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha City, China
- Institute of Reproductive and Stem Cell Engineering, Central South University, Changsha City, China
- Clinical Research Centre for Reproduction and Genetics in Hunan Province, Changsha City, China
| | - Y Ouyang
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha City, China
- Clinical Research Centre for Reproduction and Genetics in Hunan Province, Changsha City, China
| | - G Lin
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha City, China
- Institute of Reproductive and Stem Cell Engineering, Central South University, Changsha City, China
- Clinical Research Centre for Reproduction and Genetics in Hunan Province, Changsha City, China
| | - Y Peng
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha City, China
| | - J Qin
- School of Public Health, Central South University, Changsha City, China
| | - X Li
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha City, China
- Clinical Research Centre for Reproduction and Genetics in Hunan Province, Changsha City, China
| | - F Gong
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha City, China
- Institute of Reproductive and Stem Cell Engineering, Central South University, Changsha City, China
- Clinical Research Centre for Reproduction and Genetics in Hunan Province, Changsha City, China
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Peng W, Ouyang Y, Wang S, Hou J, Zhu Z, Yang Y, Zhou R, Pi R. L-F001, a Multifunctional Fasudil-Lipoic Acid Dimer Prevents RSL3-Induced Ferroptosis via Maintaining Iron Homeostasis and Inhibiting JNK in HT22 Cells. Front Cell Neurosci 2022; 16:774297. [PMID: 35431808 PMCID: PMC9008309 DOI: 10.3389/fncel.2022.774297] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 03/09/2022] [Indexed: 12/31/2022] Open
Abstract
Ferroptosis, an iron-dependent form of non-apoptotic cell death, plays important roles in cerebral ischemia. Previously we have found that L-F001, a novel fasudil-lipoic acid dimer with good pharmacokinetic characters has good neuroprotection against toxin-induced cell death in vitro and in vivo. Here, we investigated the protective effects of L-F001 against a Glutathione peroxidase 4 (GPX4) inhibitor Ras-selective lethality 3 (RSL3) -induced ferroptosis in HT22 cells. We performed MTT, Transmission Electron Microscope (TEM), Western blot, and immunofluorescence analyses to determine the protective effects of L-F001 treatment. RSL3 treatment significantly reduced HT22 cell viability and L-F001 significantly protected RSL3-induced cell death in a concentration-dependent manner and significantly attenuated Mitochondrial shrinkage observed by TEM. Meanwhile, L-F001 significantly decreased RSL3-induced ROS and lipid peroxidation levels in HT22 cells. Moreover L-F001could restore GPX4 and glutamate-cysteine ligase modifier subunit (GCLM) levels, and significantly deceased Cyclooxygenase (COX-2) levels to rescue the lipid peroxidation imbalance. In addition, FerroOrange fluorescent probe and Western blot analysis revealed that L-F001 treatment decreased the total number of intracellular Fe2+ and restore Ferritin heavy chain 1 (FTH1) level in RSL3-induced HT22 cells. Finally, L-F001 could reduce RSL3-induced c-Jun N-terminal kinase (JNK) activation, which might be a potential drug target for LF-001. Considering that L-F001 has a good anti-ferroptosis effect, our results showed that L-F001 might be a multi-target agent for the therapy of ferroptosis-related diseases, such as cerebral ischemia.
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Affiliation(s)
- Weijia Peng
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Ying Ouyang
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Ying Ouyang
| | - Shuyi Wang
- School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jiawei Hou
- School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Zeyu Zhu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Yang Yang
- School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Ruiyu Zhou
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Rongbiao Pi
- School of Medicine, Sun Yat-sen University, Guangzhou, China
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Ye L, Lin C, Wang X, Li Q, Li Y, Wang M, Zhao Z, Wu X, Shi D, Xiao Y, Ren L, Jian Y, Yang M, Ou R, Deng G, Ouyang Y, Chen X, Li J, Song L. Epigenetic silencing of SALL2 confers tamoxifen resistance in breast cancer. EMBO Mol Med 2022; 14:e15618. [PMID: 35253379 PMCID: PMC8899907 DOI: 10.15252/emmm.202115618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 01/07/2022] [Indexed: 11/09/2022] Open
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Jian Y, Kong L, Xu H, Shi Y, Huang X, Zhong W, Huang S, Li Y, Shi D, Xiao Y, Yang M, Li S, Chen X, Ouyang Y, Hu Y, Chen X, Song L, Ye R, Wei W. Protein phosphatase 1 regulatory inhibitor subunit 14C promotes triple-negative breast cancer progression via sustaining inactive glycogen synthase kinase 3 beta. Clin Transl Med 2022; 12:e725. [PMID: 35090098 PMCID: PMC8797469 DOI: 10.1002/ctm2.725] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/28/2021] [Accepted: 01/17/2022] [Indexed: 11/21/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is fast-growing and highly metastatic with the poorest prognosis among the breast cancer subtypes. Inactivation of glycogen synthase kinase 3 beta (GSK3β) plays a vital role in the aggressiveness of TNBC; however, the underlying mechanism for sustained GSK3β inhibition remains largely unknown. Here, we find that protein phosphatase 1 regulatory inhibitor subunit 14C (PPP1R14C) is upregulated in TNBC and relevant to poor prognosis in patients. Overexpression of PPP1R14C facilitates cell proliferation and the aggressive phenotype of TNBC cells, whereas the depletion of PPP1R14C elicits opposite effects. Moreover, PPP1R14C is phosphorylated and activated by protein kinase C iota (PRKCI) at Thr73. p-PPP1R14C then represses Ser/Thr protein phosphatase type 1 (PP1) to retain GSK3β phosphorylation at high levels. Furthermore, p-PPP1R14C recruits E3 ligase, TRIM25, toward the ubiquitylation and degradation of non-phosphorylated GSK3β. Importantly, the blockade of PPP1R14C phosphorylation inhibits xenograft tumorigenesis and lung metastasis of TNBC cells. These findings provide a novel mechanism for sustained GSK3β inactivation in TNBC and suggest that PPP1R14C might be a potential therapeutic target.
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Affiliation(s)
- Yunting Jian
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
- Department of Pathology, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Key Laboratory for Major Obstetric Diseases of Guangdong ProvinceThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Lingzhi Kong
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Hongyi Xu
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
- Department of Breast SurgerySun Yat‐sen University Cancer CenterGuangzhouChina
| | - Yawei Shi
- Department of Thyroid and Breast SurgeryThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Xinjian Huang
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Wenjing Zhong
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
- Department of Breast SurgerySun Yat‐sen University Cancer CenterGuangzhouChina
| | - Shumei Huang
- Department of Biochemistry, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
| | - Yue Li
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Dongni Shi
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Yunyun Xiao
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Muwen Yang
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Siqi Li
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
- Department of Breast SurgerySun Yat‐sen University Cancer CenterGuangzhouChina
| | - Xiangfu Chen
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Ying Ouyang
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Yameng Hu
- Department of Biochemistry, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
| | - Xin Chen
- Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences; Guangzhou Institute of OncologyTumor Hospital, Guangzhou Medical UniversityGuangzhouChina
| | - Libing Song
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Runyi Ye
- Department of Thyroid and Breast SurgeryThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Weidong Wei
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
- Department of Breast SurgerySun Yat‐sen University Cancer CenterGuangzhouChina
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Pachepsky Y, Anderson R, Harter T, Jacques D, Jamieson R, Jeong J, Kim H, Lamorski K, Martinez G, Ouyang Y, Shukla S, Wan Y, Zheng W, Zhang W. Fate and transport in environmental quality. J Environ Qual 2021; 50:1282-1289. [PMID: 34661914 PMCID: PMC9832569 DOI: 10.1002/jeq2.20300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 10/13/2021] [Indexed: 06/13/2023]
Abstract
Changes in pollutant concentrations in environmental media occur both from pollutant transport in water or air and from local processes, such as adsorption, degradation, precipitation, straining, and so on. The terms "fate and transport" and "transport and fate" reflect the coupling of moving with the carrier media and biogeochemical processes describing local transformations or interactions. The Journal of Environmental Quality (JEQ) was one of the first to publish papers on fate and transport (F&T). This paper is a minireview written to commemorate the 50th anniversary of JEQ and show how the research interests, methodology, and public attention have been reflected in fate and transport publications in JEQ during the last 40 years. We report the statistics showing how the representation of different pollutant groups in papers changed with time. Major focus areas have included the effect of solution composition on F&T and concurrent F&T, the role of organic matter, and the relative role of different F&T pathways. The role of temporal and spatial heterogeneity has been studied at different scales. The value of long-term F&T studies and developments in modeling as the F&T research approach was amply demonstrated. Fate and transport studies have been an essential part of conservation measure evaluation and comparison and ecological risk assessment. For 50 years, JEQ has delivered new insights, methods, and applications related to F&T science. The importance of its service to society is recognized, and we look forward to new generations of F&T researchers presenting their contributions in JEQ.
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Affiliation(s)
- Y Pachepsky
- USDA-ARS, Environmental Microbial and Food Safety Laboratory, 10300 Baltimore Ave., Bldg. 173, Beltsville, MD, 20705, USA
| | - R Anderson
- USDA-ARS, U.S. Salinity Laboratory, Agricultural Water Efficiency and Salinity Research Unit, 450 W. Big Springs Rd., Riverside, CA, 92507-4617, USA
| | - T Harter
- Dep. of Land, Air and Water Resources, Univ. of California, Davis, One Shields Ave., Davis, CA, 95616-8627, USA
| | - D Jacques
- Performance Assessments Unit, Institute Environment, Health and Safety, Belgian Nuclear Research, Mol, Belgium
| | - R Jamieson
- Dep. of Civil and Resource Engineering, Dalhousie Univ., Sexton Campus, 1360 Barrington St., Rm. 215 Bldg. D, Halifax, NS, B3H 4R2, Canada
| | - J Jeong
- Texas A&M AgriLife Research, 720 East Blackland Rd., Temple, TX, 76502, USA
| | - H Kim
- Dep. of Mineral Resources and Energy Engineering, Dep. of Environment and Energy, Jeonbuk National Univ., 567, Baekje-daero, Deokjin-gu, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - K Lamorski
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, Lublin, 20-290, Poland
| | - G Martinez
- Dep. of Applied Physics, Univ. of Córdoba, Córdoba, Spain
| | - Y Ouyang
- USDA Forest Service, Center for Bottomland Hardwoods Research, 775 Stone Blvd., Thompson Hall, Room 309, Mississippi State, MS, 39762, USA
| | - S Shukla
- The Southwest Florida Research and Education Center, Univ. of Florida, Immokalee, FL, 34142, USA
| | - Y Wan
- USEPA Center for Environmental Measurement and Modeling, Gulf Breeze, FL, 32561, USA
| | - W Zheng
- Illinois Sustainable Technology Center, Univ. of Illinois at Urbana-Champaign, 1 Hazelwood Dr., Champaign, IL, 61820, USA
| | - W Zhang
- Dep. of Plant, Soil and Microbial Sciences; Environmental Science, and Policy Program, Michigan State Univ., East Lansing, MI, 48824, USA
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Deng L, Ouyang W, Liu R, Deng M, Qiu J, Yaqub M, Raza M, Lin W, Guo L, Li H, Chen F, Ouyang Y, Huang Y, Huang Y, Long X, Huang X, Li S, Song Y. Clinical characterization of NTCP deficiency in paediatric patients : A case-control study based on SLC10A1 genotyping analysis. Liver Int 2021; 41:2720-2728. [PMID: 34369070 PMCID: PMC9291912 DOI: 10.1111/liv.15031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 08/03/2021] [Accepted: 08/05/2021] [Indexed: 02/05/2023]
Abstract
Na+ -taurocholate cotransporting polypeptide deficiency (NTCPD) is a newly described disorder arising from biallelic mutations of the SLC10A1 gene. As a result of a lack of compelling evidence from case-control studies, its genotypic and phenotypic features remain open for in-depth investigation. This study aimed to explore the genotypic and clinical phenotypic characteristics of paediatric patients with NTCPD. The SLC10A1 genotypes of all NTCPD patients were confirmed by screening for the prevalent variant c.800C>T and Sanger sequencing when necessary. The clinical presentations and laboratory changes were collected, reviewed and analysed, and then qualitatively and quantitatively compared with the relevant controls. A total of 113 paediatric NTCPD patients were diagnosed while c.374dupG and c.682_683delCT were detected as two novel pathogenic mutations. Hypercholanemia was observed in 99.12% of the patients. Indirect hyperbilirubinemia in affected neonates exhibited higher positive rates in comparison to controls. Moreover, transient cholestatic jaundice, elevated liver enzymes and 25-hydroxyvitamin D (Vit D) deficiency during early infancy were more commonly observed in patients than in controls. All NTCPD patients exhibited favourable clinical outcomes as a result of symptomatic and supportive treatment. The findings enriched the SLC10A1 mutation spectrum and provided comprehensive insights into the phenotypic characteristics of NTCPD. NTCPD should be considered and SLC10A1 gene should be analysed in patients with above age-dependent clinical features. Furthermore, over investigation and intervention should be avoided in the management of NTCPD patients.
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Affiliation(s)
- Li‐Jing Deng
- Department of PaediatricsThe First Affiliated Hospital of Jinan UniversityGuangzhouChina
| | - Wen‐Xian Ouyang
- Department of HepatopathyHunan Children’s HospitalChangshaChina
| | - Rui Liu
- Department of PaediatricsThe First Affiliated Hospital of Jinan UniversityGuangzhouChina
| | - Mei Deng
- Department of PaediatricsThe First Affiliated Hospital of Jinan UniversityGuangzhouChina
| | - Jian‐Wu Qiu
- Department of PaediatricsThe First Affiliated Hospital of Jinan UniversityGuangzhouChina
| | - Muhammad‐Rauf Yaqub
- Department of PaediatricsThe First Affiliated Hospital of Jinan UniversityGuangzhouChina
| | - Muhammad‐Atif Raza
- Department of PaediatricsThe First Affiliated Hospital of Jinan UniversityGuangzhouChina
| | - Wei‐Xia Lin
- Department of PaediatricsThe First Affiliated Hospital of Jinan UniversityGuangzhouChina
| | - Li Guo
- Department of PaediatricsThe First Affiliated Hospital of Jinan UniversityGuangzhouChina
| | - Hua Li
- Department of PaediatricsThe First Affiliated Hospital of Jinan UniversityGuangzhouChina
| | - Feng‐Ping Chen
- Department of Laboratory ScienceThe First Affiliated Hospital of Jinan UniversityGuangzhouChina
| | - Ying Ouyang
- Department of PaediatricsSun Yat‐Sen Memorial HospitalSun Yat‐Sen UniversityGuangzhouChina
| | - Yu‐Ge Huang
- Department of PaediatricsThe Affiliated Hospital of Guangdong Medical UniversityZhanjiangChina
| | - Yue‐Jun Huang
- Department of PaediatricsThe Second Affiliated Hospital of Shantou University Medical CollegeShantouChina
| | - Xiao‐Ling Long
- Department of PaediatricsBo‐Ai Hospital of ZhongshanZhongshanChina
| | - Xiao‐Ling Huang
- Dongguan Maternal and Child Health Care HospitalDongguanChina
| | - Shuang‐Jie Li
- Department of HepatopathyHunan Children’s HospitalChangshaChina
| | - Yuan‐Zong Song
- Department of PaediatricsThe First Affiliated Hospital of Jinan UniversityGuangzhouChina
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31
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Ding S, Liu H, Wang B, Li Y, Liu B, Ouyang Y, Huang X. Inter- and Intrafraction Bladder and Rectum Motion in Patients With Cervical Cancer Under MR-Guided Radiotherapy on a 1.5T MR-Linac. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Liu X, Guo JW, Lin XC, Tuo YH, Peng WL, He SY, Li ZQ, Ye YC, Yu J, Zhang FR, Ma MM, Shang JY, Lv XF, Zhou AD, Ouyang Y, Wang C, Pang RP, Sun JX, Ou JS, Zhou JG, Liang SJ. Macrophage NFATc3 prevents foam cell formation and atherosclerosis: evidence and mechanisms. Eur Heart J 2021; 42:4847-4861. [PMID: 34570211 DOI: 10.1093/eurheartj/ehab660] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 06/13/2021] [Accepted: 09/02/2021] [Indexed: 12/19/2022] Open
Abstract
AIMS Our previous study demonstrated that Ca2+ influx through the Orai1 store-operated Ca2+ channel in macrophages contributes to foam cell formation and atherosclerosis via the calcineurin-ASK1 pathway, not the classical calcineurin-nuclear factor of activated T-cell (NFAT) pathway. Moreover, up-regulation of NFATc3 in macrophages inhibits foam cell formation, suggesting that macrophage NFATc3 is a negative regulator of atherogenesis. Hence, this study investigated the precise role of macrophage NFATc3 in atherogenesis. METHODS AND RESULTS Macrophage-specific NFATc3 knockout mice were generated to determine the effect of NFATc3 on atherosclerosis in a mouse model of adeno-associated virus-mutant PCSK9-induced atherosclerosis. NFATc3 expression was decreased in macrophages within human and mouse atherosclerotic lesions. Moreover, NFATc3 levels in peripheral blood mononuclear cells from atherosclerotic patients were negatively associated with plaque instability. Furthermore, macrophage-specific ablation of NFATc3 in mice led to the atherosclerotic plaque formation, whereas macrophage-specific NFATc3 transgenic mice exhibited the opposite phenotype. NFATc3 deficiency in macrophages promoted foam cell formation by potentiating SR-A- and CD36-meditated lipid uptake. NFATc3 directly targeted and transcriptionally up-regulated miR-204 levels. Mature miR-204-5p suppressed SR-A expression via canonical regulation. Unexpectedly, miR-204-3p localized in the nucleus and inhibited CD36 transcription. Restoration of miR-204 abolished the proatherogenic phenotype observed in the macrophage-specific NFATc3 knockout mice, and blockade of miR-204 function reversed the beneficial effects of NFATc3 in macrophages. CONCLUSION Macrophage NFATc3 up-regulates miR-204 to reduce SR-A and CD36 levels, thereby preventing foam cell formation and atherosclerosis, indicating that the NFATc3/miR-204 axis may be a potential therapeutic target against atherosclerosis.
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Affiliation(s)
- Xiu Liu
- Program of Kidney and Cardiovascular Diseases, the Fifth Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China.,Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China
| | - Jia-Wei Guo
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China.,Department of Pharmacology, School of Medicine, Yangtze University, 1 Nanhuan Rd, Jingzhou 434023, China
| | - Xiao-Chun Lin
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China
| | - Yong-Hua Tuo
- Department of Neurosurgery, the Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Rd, Guangzhou 510260, China
| | - Wan-Li Peng
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China
| | - Su-Yue He
- Department of Physiology, Pain Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China
| | - Zhao-Qiang Li
- Guangdong Provincial Key Laboratory of Tumor Immunotherapy, Cancer Research Institute, Southern Medical University, 1023 Shatai South Rd, Guangzhou 510515, China
| | - Yan-Chen Ye
- Division of Vascular Surgery, the First Affiliated Hospital, Sun Yat-Sen University, 58 Zhongshan 2 Rd, Guangzhou 510080, China.,National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, the First Affiliated Hospital, Sun Yat-Sen University, 58 Zhongshan 2 Rd, Guangzhou 510080, China
| | - Jie Yu
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, 253 Industrial Rd, Guangzhou 510282, China
| | - Fei-Ran Zhang
- Program of Kidney and Cardiovascular Diseases, the Fifth Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China.,Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China
| | - Ming-Ming Ma
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China
| | - Jin-Yan Shang
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China
| | - Xiao-Fei Lv
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China
| | - An-Dong Zhou
- Department of Clinical Medicine, the Second Clinical Medical School, Guangdong Medical University, 1 Xincheng Rd, Dongguan 523808, China
| | - Ying Ouyang
- Department of Pediatrics, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yanjiang West Rd, Guangzhou 510120, China
| | - Cheng Wang
- Program of Kidney and Cardiovascular Diseases, the Fifth Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China
| | - Rui-Ping Pang
- Department of Physiology, Pain Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China
| | - Jian-Xin Sun
- Center for Translational Medicine, Thomas Jefferson University, 1020 Locust St., Rm. 368G, Philadelphia PA 19107, USA
| | - Jing-Song Ou
- National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, the First Affiliated Hospital, Sun Yat-Sen University, 58 Zhongshan 2 Rd, Guangzhou 510080, China.,Division of Cardiac Surgery, Heart Center, the First Affiliated Hospital, Sun Yat-Sen University, 58 ZhongShan 2 Rd, Guangzhou 510080, China
| | - Jia-Guo Zhou
- Program of Kidney and Cardiovascular Diseases, the Fifth Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China.,Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China.,Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yanjiang West Rd, Guangzhou 510120, China.,Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China.,Key Laboratory of Cardiovascular diseases, School of Basic Medical Sciences, Guangzhou Medical University, 1 Xinzao Rd, Guangzhou 511436, China
| | - Si-Jia Liang
- Program of Kidney and Cardiovascular Diseases, the Fifth Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China.,Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, 74 Zhongshan 2 Rd, Guangzhou 510080, China
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He Z, Yu Y, Ren W, Mao L, Tan Y, Wang J, Hu Q, Ouyang Y, Xie C, Yao H. 130P Deep learning magnetic resonance imaging radiomics for predicting disease-free survival in patients with early-stage invasive breast cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Ouyang Y, Wan Y, Jin W, Leininger TD, Feng G, Han Y. Impact of climate change on groundwater resource in a region with a fast depletion rate: the Mississippi Embayment. J Water Clim Chang 2021; 12:2245-2255. [PMID: 35154613 PMCID: PMC8829912 DOI: 10.2166/wcc.2021.326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Mississippi Embayment (ME) is one of the fastest groundwater depletion regions around the world, while the impacts of climate change on groundwater resources in the region are complex and basically unknown. Using the U.S. Geological Survey's Mississippi Embayment Regional Aquifer Study (MERAS) model, such a challenge was addressed through the base, wet, and dry simulation scenarios. Over the 137-year simulation period from 1870 to 2007, the cumulative aquifer storage depletions were 1.70 × 1011, 1.73 × 1011, and 1.67 × 1011 m3, respectively, for the base, dry, and wet scenarios. As compared with that of the base scenario, the aquifer storage depletions were only 1.76% more for the dry scenario and 1.8% less for the wet scenario. A multiple regression analysis showed that the aquifer storage depletion rate was controlled more by the groundwater pumping and stream leakage rates and less by the groundwater net recharge rate. Groundwater table variation in the forest land was much smaller than in the crop land. Results suggested that groundwater pumping rather than climate change was a key driving force of groundwater depletion in the ME. Our findings provide a useful reference to water resource managers, foresters, and farmers in the ME and around the world when developing their groundwater supply strategies.
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Affiliation(s)
- Ying Ouyang
- USDA Forest Service, Center for Bottomland Hardwoods Research, 775 Stone Blvd., Thompson Hall, Room 309, Mississippi State, MS 39762, USA
| | - Yongshan Wan
- Center for Environmental Measurement and Modeling, US EPA, 1 Sabine Island Drive, Gulf Breeze, FL 32561, USA
| | - Wei Jin
- Bureau of Watershed Management & Modeling, St. Johns River Water Management District, Palatka, FL 32178, USA
| | - Theodor D Leininger
- USDA Forest Service, Center for Bottomland Hardwoods Research, 432 Stoneville Road, Stoneville, MS 38776, USA
| | - Gary Feng
- USDA-ARS, Genetic and Sustainable Agricultural Research Unit, 810 Hwy 12 East, Mississippi State, MS 39762, USA
| | - Yuguo Han
- Beijing Forestry University, School of Soil and Water Conservation, Key Laboratory of State Forestry Administration on Soil and Water Conservation, Beijing 100083, China
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Ouyang Y, Li X, Cai P. P–357 The risk factors for early pregnancy loss based on a logistic model following 13,977 infertile patients after in vitro fertilization. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
What are the risk factors for early pregnancy loss (EPL) after in vitro fertilization-embryo transfer (IVF-ET)?
Summary answer
The maternal age, gestational sac diameter, embryonic length, yolk sac diameter, heart rate of day 27–29 and endometrium thickness on transfer day were risk factors. What is known already: The first routine ultrasound scan is commonly arranged on day 27–29 after IVF-ET in most reproductive centers in China to determine the location and viability of the embryo. Individual maternal factors, such as a high maternal age (MA) and abnormal ultrasound parameters such as embryonic bradycardia and excessively large or small yolk sac diameter (YSD) have been shown to be associated with pregnancy failures. However, few studies focused on the risk factors of the IVF population, and little is known about the clinical meaning of ultrasound indicators of 27–29 days after transplantation.
Study design, size, duration
This was a retrospective study in a single reproductive centre. The infertile patients included in this study underwent IVF treatment between June 2016 to December 2017. Participants/materials, setting, methods: During this period, 13,977 women were identified with a singleton pregnancy by TVS at day 27–29 after IVF-ET. The gestational sac diameter (GSD), embryonic length (EL), embryonic heart rate (EHR) and YSD and the presence of intrauterine hematoma (IUH) were measured. The clinical characteristics were also collected. The first trimester pregnancy outcome of these women was noted at 12 weeks of gestation. A backward Wald logistic regression model was established to screen the risk factors.
Main results and the role of chance
1,926 cases of spontaneous miscarriage ≤12 weeks of gestation, which were assigned as EPL and 12,051 women with an ongoing pregnancy for >12 weeks of gestation.
When compared with the ongoing pregnancy group, the MA, infertility duration and transfer cycle were significantly higher, and the day–14 human chorionic gonadotrophin and the endometrium (EM) thickness on transfer day were significantly lower in the EPL group (p < 0.001). Based on the TVS measurements, the GSD (18.5±3.6 vs. 13.2±4.8 mm), EL (3.5±0.9 vs. 1.2±1.6 mm), YSD (3.6±0.4 vs. 2.6±1.5 mm) and EHR (114.5±12.2 vs. 42.4±53.5 bpm) were significantly greater in the ongoing pregnancy group than those in the EPL group (p < 0.001). The incidence of IUH (16.0% vs. 18.8%, P = 0.002) was also markedly higher in the EPL group
MA, GSD, EL, YSD, EHR and EM on transfer day finally entered the logistic model after stepwise screening. The probability of EPL was: exp(z)/(1 + exp(z)), where z = 2.432 + (0.092 × MA) - (0.074 × EM) - (0.114 ×GSD) - (0.245 × EL) - (0.034 × HR) - (0.159 × YSD).
Limitations, reasons for caution
Data on smoking and clinical symptoms such as vaginal bleeding or abdominal pain were not included in the final analysis which might be possible risk factors. These predictors were derived from an IVF population, the situation may not be the same in the general population.
Wider implications of the findings: The risk factors for EPL after IVF-ET are clearly identified in this study. The logistic model which incorporates readily available data that are routinely collected in clinical practice could be used for calculating the risk of EPL and effectively guide subsequent medical plans.
Trial registration number
None
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Affiliation(s)
- Y Ouyang
- Reproductive and genetic hospital of Citic-XIangya, Imaging Department, Changsha, China
| | - X Li
- Reproductive and genetic hospital of Citic-XIangya, Imaging Department, Changsha, China
| | - P Cai
- Reproductive and genetic hospital of Citic-XIangya, Imaging Department, Changsha, China
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Cai P, Li X, Ouyang Y, Gong F. P–405 The diagnosis and management of heterotopic intramural pregnancy after in vitro fertilization-embryo transfer: six-case series. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
What are the ultrasonic characteristics of heterotopic intramural pregnancy (HIMP)? How to manage and what about the clinical outcomes of HIMP?
Summary answer
Expectant management may be a considerable choice for an non-viable intramural pregnancy (IMP). Most intrauteine pregnancies (IUPs) of HIMPs seems to have good outcomes.
What is known already
Heterotopic pregnancy (HP) post in vitro fertilization is very rare in infertility women, with a prevalence of 0.04%. HIMP is one of the rarest types of HP, where one gestational sac (GS) is embedded within the endometrial cavity and the other one GS is implanted in the myometriun. HIMP was firstly and only described by Jiangtao Lyu et al. in 2018. So far, little is known about its natural history and ultrasonic imaging characteristics. And there is no consensus regarding the ultrasound diagnosis and clinical management for HIMP due to few evidence-based medicine records.
Study design, size, duration
A retrospective observational study was conducted of 6 infertile women who obtained a HIMP through in vitro fertilization-embryo transfer (IVF-ET) between January 2009 and December 2019 at our reproductive centre.
Participants/materials, setting, methods
Six infertile women conceived a HIMP via IVF-ET were retrospectively retrieved between January 2009 and December 2019 at the Reproductive and Genetic Hospital of CITIC-Xiangya (Changsha City, China). The ultrasound diagnosis, clinical management and pregnancy outcome of these cases were analysed. The ultrasound findings, therapeutic methods and clinical outcomes were obtained from the hospital’s electronic medical records. This study was approved by the local ethics committee. Main results and the role of chance: Six women with HIMPs were retrospectively analysed. Among them, 5 cases were revealed by ultrasound scans; however, one case was misdiagnosed. The diagnostic accuracy was 83.3%.
Five cases of HIMP were diagnosed at initial scan. The diagnostic time ranged from 22 to 38 days after ET (5 + 6 - 7 + 6 weeks). Among them, an intramural GS was observed in all 5 cases; embryonic cardiac activity (ECA) was detected in one case by the followed-up scans; there was a yolk sac only in one case; an empty GS was noted in 3 cases. An IUP was revealed in all 6 cases, and ECA was observed in 5 cases at the initial diagnosis or later. A GS with a yolk sac only was showed in one case.
Among the 5 diagnostic women, one case with a live IMP was treated with laparoscopy at 8 + 1 weeks, 4 cases were managed expectantly. Of them, the IUPs of 4 cases delivered live infants and one case managed expectantly experienced miscarriage. In one case, IMP was misdiagnosed as interstitial pregnancy at day–28 scan. Exploratory laparoscopy and foetal reduction were performed at 8 + 2 weeks. Laparoscopy confirmed an IMP and the retained IUP delivered a live infant.
Limitations, reasons for caution
The case numbers are too few to draw any objective conclusions, because of the extreme rarity of HIMP. Thus, a further multi-centre larger prospective study will help to confidently illustrate the clinical significance, and effective and appropriate management method for women with a HIMP.
Wider implications of the findings: Our study showed that HIMP may not be as rare as previously reported. Increased awareness of this condition, better comprehension of the diagnostic criteria and improved resolution of ultrasound equipment may result in more frequent and accurate detection of HIMP, which will be helpful for early management to preserve IUP.
Trial registration number
Not applicable.
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Affiliation(s)
- P Cai
- Central South University, Institute of Reproductive and Stem Cell Engineering, Changsha, China
| | - X Li
- Reproductive and Genetic hospital of CITIC-Xiangya, Imaging Department, Changsha City, China
| | - Y Ouyang
- Reproductive and Genetic hospital of CITIC-Xiangya, Imaging Department, Changsha City, China
| | - F Gong
- Reproductive and Genetic hospital of CITIC-Xiangya, Reproductive Centre, Changsha City, China
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Cai Z, Wang W, Pan BH, Xie C, Yang P, Wang XW, Ouyang Y, Liu GQ, Wu KM, Le TM, Huang JH. [Choices of emergency treatment and surgical method for ruptured abdominal aortic aneurysms]. Zhonghua Yi Xue Za Zhi 2021; 101:2288-2292. [PMID: 34333943 DOI: 10.3760/cma.j.cn112137-20201216-03368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the emergency management process of ruptured abdominal aortic aneurysm (RAAA), and analyze the perioperative mortality factors of different surgical methods. Methods: The emergency data and hospitalization data of 91 patients with ruptured abdominal aortic aneurysm in Xiangya Hospital of Central South University from June 2010 to June 2019 were retrospectively analyzed.Twelve of the patients died preoperatively due to excessive blood loss, and the remaining 79 patients were hospitalized for open surgery (OSR) or endovascular repair (EVAR).The differences in age, time to hospital arrival, emergency preparation time, first creatinine value, emergency infusion volume, preoperative drop in blood pressure, preoperative use of vasoactive drugs and iliac artery involvement were compared between preoperative death group (n=12) and preoperative survival group (n=79), OSR group (n=50) and EVAR group (n=29), postoperative death group (n=23) and postoperative survival group (n=56). Results: Seventy-nine patients received open surgery or endovascular repair, and 23 died after operation. Age, time to hospital arrival, first creatinine value and emergency infusion volume were (77±11) years, (18±5)h, (469±150) μmol/L, (4 140±1 743) ml in the preoperative death group and (70±10) years, (12±8) h, (228±174) μmol/L, (1 358±1 211) ml in the preoperative survival group, respectively, and the differences were statistically significant (all P<0.05). There were no significant differences in preoperative data, intraoperative treatment and postoperative perioperative mortality between the open surgery group and the endovascular repair group (all P>0.05). The intraoperative blood loss, operation time and aortic occlusion rate in the endovascular repair group were 100 (50, 175) ml, (3.2±0.9) h, 13.8%, respectively, which were better than that in the open surgery group 1700 (600, 3425) ml, (5.2±1.1) h, 100%. The differences were statistically significant (all P<0.05). Age, emergency preparation time, first creatinine value, emergency infusion volume, blood pressure decline rate and vasoactive drug utilization rate in the death group were (77±8) years, (4.1±1.7) h, (456±172) μmol/L, (2 024±1 687) ml, 100%, 100%, respectively, and (68±10) years, (2.7±2.2) h, (135±26) μmol/L, (1 085±825) ml, 21.4%, 12.5% in the survival group, respectively. The differences were statistically significant (all P<0.05). Conclusions: Age, emergency preparation time, first creatinine value, emergency infusion volume, decreased blood pressure and use of vasoactive drugs are all associated with perioperative death in patients with ruptured abdominal aortic aneurysm. EVAR surgery is a better choice if conditions exist.
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Affiliation(s)
- Z Cai
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - W Wang
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - B H Pan
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - C Xie
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - P Yang
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - X W Wang
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - Y Ouyang
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - G Q Liu
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - K M Wu
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - T M Le
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - J H Huang
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
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Ding S, Liu H, Wang B, Li Y, Liu B, Ouyang Y, Huang X. PO-1538 Inter- and intrafraction organ motion for cervical cancer patients treated on a 1.5T MR-Linac. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07989-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Gautam SG, Ouyang Y, Gu P, Grafton-Cardwell EE. Field Ecology and Food Suitability of Tarsonemus spp. (Acari: Tarsonemidae). Environ Entomol 2021; 50:744-751. [PMID: 33675654 DOI: 10.1093/ee/nvab013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Indexed: 06/12/2023]
Abstract
Tarsonemus bakeri Ewing (Acari: Tarsonemidae) is a species of mite commonly associated with citrus in many countries including the United States. A short report in 1942 suggested this species is phytophagous, but it has not been reported as a pest in citrus or any other crop since then. A single survey of 78 orchards in three growing regions in California demonstrated that Tarsonemus spp. mites were only associated with leaf samples that had visible sooty mold. A seasonal population study in one citrus orchard showed that all life stages of Tarsonemus spp. were present year-round on leaves and fruit, with the population on fruit reaching a peak in December (59.7 ± 15.2 mites per fruit). Results from a food suitability study showed that the population declined sharply on both plastic and leaf substrate when the mites were not provided a supplementary food source. When supplementary food was provided in the form of Alternaria, honeydew, molasses, or combinations of these, mites survived and multiplied throughout the 29-d study, irrespective of the substrate. Tarsonemus bakeri were found on excised, decaying leaves collected from an orchard. These studies verify that Tarsonemus spp. are associated only with sooty mold in citrus orchards. T. bakeri populations cannot sustain themselves on leaf tissue alone, indicating that they are nondamaging to citrus and therefore need not be considered a phytosanitary concern by importing countries.
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Affiliation(s)
- S G Gautam
- Department of Entomology, University of California, Riverside, CA, USA
- Kearney Agricultural Research and Extension Center, Riverbend Avenue, Parlier, CA, USA
| | - Y Ouyang
- Department of Entomology, University of California, Riverside, CA, USA
| | - P Gu
- Department of Entomology, University of California, Riverside, CA, USA
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Ouyang Y. A flow-weighted approach to generate daily total phosphorus loads in streams based on seasonal loads. Environ Monit Assess 2021; 193:422. [PMID: 34129110 DOI: 10.1007/s10661-021-09199-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 06/07/2021] [Indexed: 06/12/2023]
Abstract
Phosphorus (P) is an essential nutrient for all forms of life but its over-enrichment can result in eutrophication of surface waters. For many watersheds around the world, some seasonal total P (TP) load datasets may exist but the continuous and multi-year daily TP concentrations and/or load datasets are not available due to the lacks of in situ P sensor measurement, time-consuming, and budget constraint. Traditionally, the seasonal TP loads are normally obtained with measuring daily TP concentrations for a couple of times within a season in a watershed, and then these daily TP concentrations along with their respective daily discharges are used to calculate the seasonal TP loads for the watershed. However, without the continuous and multi-year daily TP load dataset, development of total maximum daily load (TMDL) and calibration of watershed models for TP cannot be achieved. A flow-weighted method was developed (with detailed procedures) here to generate the daily TP loads based on the seasonal loads. The method was rigorously validated using the measured daily TP datasets from three different US Geological Survey gage stations. With very good statistical comparisons between the method predicted and field measured TP loads, we demonstrated that the flow-weighted method herein is a useful tool to disaggregate the seasonal TP loads into the daily TP loads when the measured daily TP data are not available while the TMDL development and model calibrations/validations are inevitable.
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Affiliation(s)
- Ying Ouyang
- Center for Bottomland Hardwoods Research, Southern Research Station, USDA Forest Service, 775 Stone Blvd., Thompson Hall, Room 309, Mississippi State, MS, 39762, USA.
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41
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Li Y, Wang M, Yang M, Xiao Y, Jian Y, Shi D, Chen X, Ouyang Y, Kong L, Huang X, Bai J, Hu Y, Lin C, Song L. Nicotine-Induced ILF2 Facilitates Nuclear mRNA Export of Pluripotency Factors to Promote Stemness and Chemoresistance in Human Esophageal Cancer. Cancer Res 2021; 81:3525-3538. [PMID: 33975879 DOI: 10.1158/0008-5472.can-20-4160] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 04/05/2021] [Accepted: 05/07/2021] [Indexed: 11/16/2022]
Abstract
Balancing mRNA nuclear export kinetics with its nuclear decay is critical for mRNA homeostasis control. How this equilibrium is aberrantly disrupted in esophageal cancer to acquire cancer stem cell properties remains unclear. Here we find that the RNA-binding protein interleukin enhancer binding factor 2 (ILF2) is robustly upregulated by nicotine, a major chemical component of tobacco smoke, via activation of JAK2/STAT3 signaling and significantly correlates with poor prognosis in heavy-smoking patients with esophageal cancer. ILF2 bound the THO complex protein THOC4 as a regulatory cofactor to induce selective interactions with pluripotency transcription factor mRNAs to promote their assembly into export-competent messenger ribonucleoprotein complexes. ILF2 facilitated nuclear mRNA export and inhibited hMTR4-mediated exosomal degradation to promote stabilization and expression of SOX2, NANOG, and SALL4, resulting in enhanced stemness and tumor-initiating capacity of esophageal cancer cells. Importantly, inducible depletion of ILF2 significantly increased the therapeutic efficiency of cisplatin and abrogated nicotine-induced chemoresistance in vitro and in vivo. These findings reveal a novel role of ILF2 in nuclear mRNA export and maintenance of cancer stem cells and open new avenues to overcome smoking-mediated chemoresistance in esophageal cancer. SIGNIFICANCE: This study defines a previously uncharacterized role of nicotine-regulated ILF2 in facilitating nuclear mRNA export to promote cancer stemness, suggesting a potential therapeutic strategy against nicotine-induced chemoresistance in esophageal cancer.
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Affiliation(s)
- Yue Li
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Meng Wang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Muwen Yang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yunyun Xiao
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yunting Jian
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Dongni Shi
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xiangfu Chen
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Ying Ouyang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Lingzhi Kong
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xinjian Huang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Jiewen Bai
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yameng Hu
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Chuyong Lin
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China. .,Guangdong Esophageal Cancer Institute, Guangzhou, China
| | - Libing Song
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China. .,Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences; Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
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Li S, Wu H, Huang X, Jian Y, Kong L, Xu H, Ouyang Y, Chen X, Wu G, Yu L, Wang X. BOP1 confers chemoresistance of triple-negative breast cancer by promoting CBP-mediated β-catenin acetylation. J Pathol 2021; 254:265-278. [PMID: 33797754 DOI: 10.1002/path.5676] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 03/03/2021] [Accepted: 03/30/2021] [Indexed: 12/26/2022]
Abstract
Chemoresistance is a major obstacle to the treatment of triple-negative breast cancer (TNBC), which has a poor prognosis. Increasing evidence has demonstrated the essential role of cancer stem cells (CSCs) in the process of TNBC chemoresistance. However, the underlying mechanism remains unclear. In the present study, we report that block of proliferation 1 (BOP1) serves as a key regulator of chemoresistance in TNBC. BOP1 expression was significantly upregulated in chemoresistant TNBC tissues, and high expression of BOP1 correlated with shorter overall survival and relapse-free survival in patients with TNBC. BOP1 overexpression promoted, while BOP1 downregulation inhibited the drug resistance and CSC-like phenotype of TNBC cells in vitro and in vivo. Moreover, BOP1 activated Wnt/β-catenin signaling by increasing the recruitment of cyclic AMP response element-binding protein (CBP) to β-catenin, enhancing CBP-mediated acetylation of β-catenin, and increasing the transcription of downstream stemness-related genes CD133 and ALDH1A1. Notably, treating with the β-catenin/CBP inhibitor PRI-724 induced an enhancement of chemotherapeutic response of paclitaxel in BOP1-overexpressing TNBC cells. These findings indicate that BOP1 is involved in chemoresistance development and might serve as a prognostic marker and therapeutic target in TNBC. © 2021 The Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Siqi Li
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Haoming Wu
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | | | - Yunting Jian
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Lingzhi Kong
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Hongyi Xu
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China.,Department of Breast Surgery, Sun Yat-sen University Cancer Center, Guangzhou, PR China
| | - Ying Ouyang
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Xiangfu Chen
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Geyan Wu
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, PR China
| | - Liang Yu
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - Xi Wang
- Department of Breast Surgery, Sun Yat-sen University Cancer Center, Guangzhou, PR China
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Ouyang Y, Chen S, Zhao L, Song Y, Lei A, He J, Wang J. Global Metabolomics Reveals That Vibrio natriegens Enhances the Growth and Paramylon Synthesis of Euglena gracilis. Front Bioeng Biotechnol 2021; 9:652021. [PMID: 33869160 PMCID: PMC8044410 DOI: 10.3389/fbioe.2021.652021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/10/2021] [Indexed: 11/18/2022] Open
Abstract
The microalga Euglena gracilis is utilized in the food, medicinal, and supplement industries. However, its mass production is currently limited by its low production efficiency and high risk of microbial contamination. In this study, physiological and biochemical parameters of E. gracilis co-cultivated with the bacteria Vibrio natriegens were investigated. A previous study reports the benefits of E. gracilis and V. natriegens co-cultivation; however, no bacterium growth and molecular mechanisms were further investigated. Our results show that this co-cultivation positively increased total chlorophyll, microalgal growth, dry weight, and storage sugar paramylon content of E. gracilis compared to the pure culture without V. natriegens. This analysis represents the first comprehensive metabolomic study of microalgae-bacterial co-cultivation, with 339 metabolites identified. This co-cultivation system was shown to have synergistic metabolic interactions between microalgal and bacterial cells, with a significant increase in methyl carbamate, ectoine, choline, methyl N-methylanthranilate, gentiatibetine, 4R-aminopentanoic acid, and glu-val compared to the cultivation of E. gracilis alone. Taken together, these results fill significant gaps in the current understanding of microalgae-bacteria co-cultivation systems and provide novel insights into potential improvements for mass production and industrial applications of E. gracilis.
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Affiliation(s)
- Ying Ouyang
- Shenzhen Key Laboratory of Marine Bioresources and Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, China
| | - Shuyu Chen
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, China
| | - Liqing Zhao
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, China
| | - Yiting Song
- Department of Microbiology, University of Illinois Urbana-Champaign, Champaign, IL, United States
| | - Anping Lei
- Shenzhen Key Laboratory of Marine Bioresources and Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Jiayi He
- Shenzhen Key Laboratory of Marine Bioresources and Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Provinces, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, China
| | - Jiangxin Wang
- Shenzhen Key Laboratory of Marine Bioresources and Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Provinces, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, China
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Mao X, Yang X, Chen X, Yu S, Yu S, Zhang B, Ji Y, Chen Y, Ouyang Y, Luo W. Single-cell transcriptome analysis revealed the heterogeneity and microenvironment of gastrointestinal stromal tumors. Cancer Sci 2021; 112:1262-1274. [PMID: 33393143 PMCID: PMC7935798 DOI: 10.1111/cas.14795] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 12/15/2020] [Accepted: 12/31/2020] [Indexed: 02/06/2023] Open
Abstract
Gastrointestinal stromal tumor (GIST) is the most common mesenchymal tumor of the human gastrointestinal tract. In this study, we performed single-cell RNA sequencing (RNA-seq) on intra- and peri-tumor tissues from GIST patients with the aim of discovering the heterogeneity of tumor cells in GIST and their interactions with other cells. We found four predominating cell types in GIST tumor tissue, including T cells, macrophages, tumor cells, and NK cells. Tumor cells could be clustered into two groups: one was highly proliferating and associated with high risk of metastasis, the other seemed "resting" and associated with low risk. Their clinical relevance and prognostic values were confirmed by RNA-seq of 65 GIST samples. T cells were the largest cell type in our single-cell data. Two groups of CD8+ effector memory (EM) cells were in the highest clonal expansion and performed the highest cytotoxicity but were also the most exhausted among all T cells. A group of macrophages were found polarized to possess both M1 and M2 signatures, and increased along with tumor progression. Cell-to-cell interaction analysis revealed that adipose endothelial cells had high interactions with tumor cells to facilitate their progression. Macrophages were at the center of the tumor microenvironment, recruiting immune cells to the tumor site and having most interactions with both tumor and nontumor cells. In conclusion, we obtained an overview of the GIST microenvironment and revealed the heterogeneity of each cell type and their relevance to risk classifications, which provided a novel theoretical basis for learning and curing GISTs.
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Affiliation(s)
- Xiaofan Mao
- Clinical Research Institute, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China.,Medical Engineering Technology Research and Development Center of Immune Repertoire in Foshan, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China
| | - Xuezhu Yang
- Gastroenterology, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China
| | - Xiangping Chen
- Clinical Research Institute, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China.,Medical Engineering Technology Research and Development Center of Immune Repertoire in Foshan, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China
| | - Sifei Yu
- Clinical Research Institute, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China.,Medical Engineering Technology Research and Development Center of Immune Repertoire in Foshan, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China
| | - Si Yu
- Gastroenterology, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China
| | - Beiying Zhang
- Clinical Research Institute, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China.,Medical Engineering Technology Research and Development Center of Immune Repertoire in Foshan, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China
| | - Yong Ji
- Gastroenterology, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China
| | - Yihao Chen
- Clinical Research Institute, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China.,Medical Engineering Technology Research and Development Center of Immune Repertoire in Foshan, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China
| | - Ying Ouyang
- Clinical Research Institute, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China.,Medical Engineering Technology Research and Development Center of Immune Repertoire in Foshan, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China
| | - Wei Luo
- Clinical Research Institute, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China.,Medical Engineering Technology Research and Development Center of Immune Repertoire in Foshan, The First People's Hospital of Foshan & Sun Yat-Sen University Foshan Hospital, Foshan, China
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Liu Q, He L, Li S, Li F, Deng G, Huang X, Yang M, Xiao Y, Chen X, Ouyang Y, Chen J, Wu X, Wang X, Song L, Lin C. HOMER3 facilitates growth factor-mediated β-Catenin tyrosine phosphorylation and activation to promote metastasis in triple negative breast cancer. J Hematol Oncol 2021; 14:6. [PMID: 33407765 PMCID: PMC7788750 DOI: 10.1186/s13045-020-01021-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 12/07/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND HOMER family scaffolding proteins (HOMER1-3) play critical roles in the development and progression of human disease by regulating the assembly of signal transduction complexes in response to extrinsic stimuli. However, the role of HOMER protein in breast cancer remains unclear. METHODS HOMER3 expression was examined by immunohistochemistry in breast cancer patient specimens, and its significance in prognosis was assessed by Kaplan-Meier survival analysis. The effects of HOMER3 in growth factor-induced β-Catenin activation were analyzed by assays such as TOP/FOP flash reporter, tyrosine phosphorylation assay and reciprocal immunoprecipitation (IP) assay. Role of HOMER3 in breast cancer metastasis was determined by cell function assays and mice tumor models. RESULTS Herein, we find that, among the three HOMER proteins, HOMER3 is selectively overexpressed in the most aggressive triple negative breast cancer (TNBC) subtype, and significantly correlates with earlier tumor metastasis and shorter patient survival. Mechanismly, HOMER3 interacts with both c-Src and β-Catenin, thus providing a scaffolding platform to facilitate c-Src-induced β-Catenin tyrosine phosphorylation under growth factor stimulation. HOMER3 promotes β-Catenin nuclear translocation and activation, and this axis is clinically relevant. HOMER3 promotes and is essential for EGF-induced aggressiveness and metastasis of TNBC cells both in vitro and in vivo. CONCLUSION These findings identify a novel role of HOMER3 in the transduction of growth factor-mediated β-Catenin activation and suggest that HOMER3 might be a targetable vulnerability of TNBC.
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Affiliation(s)
- Qinghua Liu
- State Key Laboratory of Oncology in Southern China and Department of Experimental Research, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, 510060, China
| | - Lixin He
- State Key Laboratory of Oncology in Southern China and Department of Experimental Research, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Siqi Li
- State Key Laboratory of Oncology in Southern China and Department of Experimental Research, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
- Department of Breast Surgery, Cancer Center, Sun Yat-sen University, Guangzhou, 510060, China
| | - Fengyan Li
- Department of Radiation Oncology, Cancer Center, Sun Yat-sen University, Guangzhou, 510060, China
| | - Guangzheng Deng
- Department of Breast Surgery, Cancer Center, Sun Yat-sen University, Guangzhou, 510060, China
| | - Xinjian Huang
- State Key Laboratory of Oncology in Southern China and Department of Experimental Research, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
- Department of Breast Surgery, Cancer Center, Sun Yat-sen University, Guangzhou, 510060, China
| | - Muwen Yang
- State Key Laboratory of Oncology in Southern China and Department of Experimental Research, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Yunyun Xiao
- State Key Laboratory of Oncology in Southern China and Department of Experimental Research, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Xiangfu Chen
- State Key Laboratory of Oncology in Southern China and Department of Experimental Research, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Ying Ouyang
- State Key Laboratory of Oncology in Southern China and Department of Experimental Research, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Jinxin Chen
- State Key Laboratory of Oncology in Southern China and Department of Experimental Research, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Xuxia Wu
- State Key Laboratory of Oncology in Southern China and Department of Experimental Research, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Xi Wang
- State Key Laboratory of Oncology in Southern China and Department of Experimental Research, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
- Department of Breast Surgery, Cancer Center, Sun Yat-sen University, Guangzhou, 510060, China
| | - Libing Song
- State Key Laboratory of Oncology in Southern China and Department of Experimental Research, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Chuyong Lin
- State Key Laboratory of Oncology in Southern China and Department of Experimental Research, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China.
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Wang W, Zhong Y, Zhuang Z, Xie J, Lu Y, Huang C, Sun Y, Wu L, Yin J, Yu H, Jiang Z, Wang S, Wang C, Zhang Y, Huang Y, Han C, Zhong Z, Hu J, Ouyang Y, Liu H, Yu M, Wei X, Chen D, Huang L, Hou Y, Lin Z, Liu S, Ling F, Yao X. Multiregion single-cell sequencing reveals the transcriptional landscape of the immune microenvironment of colorectal cancer. Clin Transl Med 2021; 11:e253. [PMID: 33463049 PMCID: PMC7775989 DOI: 10.1002/ctm2.253] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 11/12/2020] [Accepted: 11/28/2020] [Indexed: 12/31/2022] Open
Abstract
The tumor microenvironment is a complex ecosystem formed by distinct and interacting cell populations, and its composition is related to cancer prognosis and response to clinical treatment. In this study, we have taken the advantage of two single-cell RNA sequencing technologies (Smart-seq2 and DNBelab C4) to generate an atlas of 15,115 immune and nonimmune cells from primary tumors and hepatic metastases of 18 colorectal cancer (CRC) patients. We observed extensive changes in the proportions and functional states of T cells and B cells in tumor tissues, compared to those of paired non-tumor tissues. Importantly, we found that B cells from early CRC tumor were identified to be pre-B like expressing tumor suppressors, whereas B cells from advanced CRC tumors tended to be developed into plasma cells. We also identified the association of IgA+ IGLC2+ plasma cells with poor CRC prognosis, and demonstrated a significant interaction between B-cell and myeloid-cell signaling, and found CCL8+ cycling B cells/CCR5+ T-cell interactions as a potential antitumoral mechanism in advanced CRC tumors. Our results provide deeper insights into the immune infiltration within CRC, and a new perspective for the future research in immunotherapies for CRC.
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Affiliation(s)
- Wei Wang
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
- BGI‐ShenzhenShenzhenChina
- China National GeneBankBGI‐ShenzhenShenzhenChina
| | - Yu Zhong
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
- BGI‐ShenzhenShenzhenChina
- China National GeneBankBGI‐ShenzhenShenzhenChina
| | - Zhenkun Zhuang
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
- BGI‐ShenzhenShenzhenChina
- China National GeneBankBGI‐ShenzhenShenzhenChina
| | - Jiarui Xie
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
- BGI‐ShenzhenShenzhenChina
- China National GeneBankBGI‐ShenzhenShenzhenChina
| | - Yueer Lu
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
| | - Chengzhi Huang
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, School of Medicine, South China University of TechnologyGuangzhouGuangdongChina
| | - Yan Sun
- BGI‐ShenzhenShenzhenChina
- China National GeneBankBGI‐ShenzhenShenzhenChina
| | - Liang Wu
- BGI‐ShenzhenShenzhenChina
- China National GeneBankBGI‐ShenzhenShenzhenChina
| | - Jianhua Yin
- BGI‐ShenzhenShenzhenChina
- China National GeneBankBGI‐ShenzhenShenzhenChina
| | - Hang Yu
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
| | - Zhiqiang Jiang
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
| | - Shanshan Wang
- BGI‐ShenzhenShenzhenChina
- China National GeneBankBGI‐ShenzhenShenzhenChina
| | - Chunqing Wang
- BGI‐ShenzhenShenzhenChina
- China National GeneBankBGI‐ShenzhenShenzhenChina
| | - Yuanhang Zhang
- BGI‐ShenzhenShenzhenChina
- China National GeneBankBGI‐ShenzhenShenzhenChina
| | - Yilin Huang
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
| | - Chongyin Han
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
| | - Zhenggang Zhong
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
| | - Jialin Hu
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
| | - Ying Ouyang
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
| | - Huisheng Liu
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
| | - Mengya Yu
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, School of Medicine, South China University of TechnologyGuangzhouGuangdongChina
| | | | | | - Lizhen Huang
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
| | - Yong Hou
- BGI‐ShenzhenShenzhenChina
- China National GeneBankBGI‐ShenzhenShenzhenChina
- Shenzhen Key Laboratory of Single‐Cell OmicsShenzhenChina
| | - Zhanglin Lin
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
| | - Shiping Liu
- BGI‐ShenzhenShenzhenChina
- China National GeneBankBGI‐ShenzhenShenzhenChina
- Shenzhen Key Laboratory of Single‐Cell OmicsShenzhenChina
- The Guangdong‐Hong Kong Joint Laboratory On Immunological And Genetic Kidney DiseasesGuangdong Provincial People's Hospital, Guangdong Academy of Medical SciencesGuangzhouGuangdongChina
| | - Fei Ling
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouGuangdongChina
| | - Xueqing Yao
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, School of Medicine, South China University of TechnologyGuangzhouGuangdongChina
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47
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Chen S, Yang M, Wang C, Ouyang Y, Chen X, Bai J, Hu Y, Song M, Zhang S, Zhang Q. Forkhead box D1 promotes EMT and chemoresistance by upregulating lncRNA CYTOR in oral squamous cell carcinoma. Cancer Lett 2020; 503:43-53. [PMID: 33352248 DOI: 10.1016/j.canlet.2020.11.046] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/12/2020] [Accepted: 11/27/2020] [Indexed: 12/13/2022]
Abstract
Chemotherapy regimens containing cisplatin remain the first-line treatments for patients with oral squamous cell cancer (OSCC); however, the treatment effect is often transient because of chemoresistance and recurrence. Understanding the mechanisms of chemoresistance in OSCC might provide novel targetable vulnerabilities. In the present study, we revealed that Forkhead box D1 (FOXD1) is upregulated in OSCC and predicted poor prognosis. Moreover, ectopic expression of FOXD1 promoted, while silencing of FOXD1 inhibited, the epithelial-mesenchymal transition (EMT) and chemoresistance of OSCC, both in vitro and in vivo. Mechanistically, FOXD1 binds to the promoter of long non-coding RNA Cytoskeleton Regulator RNA (CYTOR) and activates its transcription. CYTOR then acts as a competing endogenous RNA to inhibit miR-1252-5p and miR-3148, thus upregulating lipoma preferred partner (LPP) expression. Importantly, the CYTOR/LPP axis was proven to be essential for FOXD1-induced EMT and chemoresistance in OSCC. These findings reveal a novel mechanism for the chemotherapy resistance of OSCC, suggesting that FOXD1 might be a potential prognostic marker and anti-resistance therapeutic target.
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Affiliation(s)
- Shuwei Chen
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China; State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Muwen Yang
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China; Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Chunyang Wang
- Zhujiang New Town Dental Clinic, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510060, PR China
| | - Ying Ouyang
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China; Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Xiangfu Chen
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China; Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Jiewen Bai
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China; Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Yameng Hu
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, PR China
| | - Ming Song
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China; State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China.
| | - Siyi Zhang
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China; Department of Otorhinolaryngology, Guangdong Provincial People's Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China.
| | - Quan Zhang
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China; State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China.
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48
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Han L, Ouyang Y, Xing E, Luo Y, Da Z. Enhancing hydrothermal stability of framework Al in ZSM-5: From the view on the transformation between P and Al species by solid-state NMR spectroscopy. Chin J Chem Eng 2020. [DOI: 10.1016/j.cjche.2020.07.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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49
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Li J, Ouyang Y, Cao X. First Postoperative Cervical Cancer Patients Treated with a 1.5 Unity MR-Linac and Analysis of Treatment Safety and Acute Toxicity. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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50
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Zeng L, Zhao X, Yang M, Ouyang Y, Li SY, Ma XQ. Exploration on the safe management of multi-hospital transportation in a large public hospital during the pandemic of 2019-nCoV. Am J Emerg Med 2020; 46:669-672. [PMID: 33041109 PMCID: PMC7428703 DOI: 10.1016/j.ajem.2020.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 08/01/2020] [Indexed: 02/08/2023] Open
Abstract
During the pandemic of 2019-nCoV, large public hospitals are facing great challenges. Multi-hospital development will be the main mode of hospital administrative management in China in the future. West China Hospital of Sichuan University implemented multi-hospital integrated management, in which the branch district established the administrative multi-department collaboration mode. As an important part of the operation of branch district, how to effectively organize transportation of staffs and patients and to prevent and control the pandemic of 2019-nCoV simultaneously between different hospitals have been the key and difficult points, which should be solved urgently in the management of the branch district.
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Affiliation(s)
- Lin Zeng
- President's Office, West China Hospital of Sichuan University, Chengdu, Sichuan Province, the People's Republic of China
| | - Xin Zhao
- President's Office, West China Hospital of Sichuan University, Chengdu, Sichuan Province, the People's Republic of China
| | - Min Yang
- Department of Pediatric Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan Province, People's Republic of China
| | - Ying Ouyang
- Medical Affairs Department, West China Hospital of Sichuan University, Chengdu, Sichuan Province, People's Republic of China
| | - Shi-Yu Li
- Department of Hospital Infection Management, West China Hospital of Sichuan University, Chengdu, Sichuan Province, People's Republic of China
| | - Xiu-Qing Ma
- President's Office, West China Hospital of Sichuan University, Chengdu, Sichuan Province, the People's Republic of China.
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