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Wang J, Cui X, Weng Y, Wei J, Chen X, Wang P, Wang T, Qin J, Peng M. Application of an angiogenesis-related genes risk model in lung adenocarcinoma prognosis and immunotherapy. Front Genet 2023; 14:1092968. [PMID: 36816016 PMCID: PMC9929558 DOI: 10.3389/fgene.2023.1092968] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/09/2023] [Indexed: 02/04/2023] Open
Abstract
Lung adenocarcinoma (LUAD) is an essential pathological subtype of non-small cell lung cancer and offers a severe problem for worldwide public health. There is mounting proof that angiogenesis is a crucial player in LUAD progression. Consequently, the purpose of this research was to construct a novel LUAD risk assessment model based on genetic markers related to angiogenesis. We accessed The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases for LUAD mRNA sequencing data and clinical information. Based on machine algorithms and bioinformatics, angiogenic gene-related risk scores (RS) were calculated. Patients in the high-risk category had a worse prognosis (p < 0.001) in the discovery TCGA cohort, and the results were confirmed by these three cohorts (validation TCGA cohort, total TCGA cohort, and GSE68465 cohort). Moreover, risk scores for genes involved in angiogenesis were independent risk factors for lung cancer in all four cohorts. The low-risk group was associated with better immune status and lower tumor mutational load. In addition, the somatic mutation study revealed that the low-risk group had a lower mutation frequency than the high-risk group. According to an analysis of tumor stem cell infiltration, HLA expression, and TIDE scores, the low-risk group had higher TIDE scores and HLA expression levels than the high-risk group, and the amount of tumor stem cell infiltration correlated with the risk score. In addition, high-risk groups may benefit from immune checkpoint inhibitors and targeted therapies. In conclusion, we developed an angiogenesis-related gene risk model to predict the prognosis of LUAD patients, which may aid in the classification of patients with LUAD and select medications for LUAD patients.
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Affiliation(s)
- Jinsong Wang
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xue Cui
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yiming Weng
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jiayan Wei
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xinyi Chen
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Peiwei Wang
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Tong Wang
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jian Qin
- Central Laboratory, Renmin Hospital, Wuhan University, Wuhan, China,*Correspondence: Jian Qin, ; Min Peng,
| | - Min Peng
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China,*Correspondence: Jian Qin, ; Min Peng,
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2
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Song D, Ha CZ, Xu Q, Hu YH. mRNA expression profiling of the cancellous bone in patients with idiopathic osteonecrosis of the femoral head by whole-transcriptome sequencing. Medicine (Baltimore) 2022; 101:e30213. [PMID: 36107565 PMCID: PMC9439785 DOI: 10.1097/md.0000000000030213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Idiopathic osteonecrosis of the femoral head (INFH) seriously affects patients' activities and is a heavy burden to society and patients' families. Therefore, the early diagnosis and treatment of INFH is essential in reducing pain and burden. In the present study, the cancellous bone under the cartilage of the femoral head was isolated from patients with INFH and femoral neck fracture (FNF). Histological examination revealed that the bone trabecular and the medullary cavity in the INFH group compared with those in the FNF group. Whole-transcriptome sequencing (WTS), a recently applied technology, plays a significant role in the screening of risk factors associated with the onset of femoral head necrosis. Herein, WTS was used to obtain the mRNA expression profile in the cancellous bone of the femoral head isolated from 5 patients with INFH and 5 patients with FNF. Compared with the FNF group, a total of 155 differentially expressed genes were identified in the INFH group. Among these genes, 96 and 59 were upregulated and downregulated, respectively. Reverse transcription-quantitative PCR and western blot analyses revealed that leucine-rich repeat-containing 17 (LRRC17) displayed the most significantly decreased mRNA and protein expression levels between the INFH and FNF groups. The expression profile of the differentially expressed genes and LRRC17 protein in the INFH and FNF groups was consistent with that obtained by WTS. LRRC17, a leucine repeat sequence, plays a significant role in regulating bone metabolism, thus indicating that LRRC17 downregulation could affect bone metabolism and could be considered a key factor in the pathogenesis of INFH.
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Affiliation(s)
- Da Song
- Department of Orthopedics, Liaocheng People’s Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Cheng-Zhi Ha
- Department of Orthopedics, Liaocheng People’s Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Qi Xu
- Department of Orthopedics, Liaocheng People’s Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Yan-Hui Hu
- Department of Orthopedics, Liaocheng People’s Hospital, Liaocheng, Shandong 252000, P.R. China
- * Correspondence: Yan-hui Hu, Department of Orthopedics, Liaocheng People’s Hospital, No. 67 Dongchang West Road, Liaocheng, Shandong 252000, P.R. China (e-mail: )
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3
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Zhao Y, Lykov N, Tzeng C. Talin‑1 interaction network in cellular mechanotransduction (Review). Int J Mol Med 2022; 49:60. [PMID: 35266014 PMCID: PMC8930095 DOI: 10.3892/ijmm.2022.5116] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/23/2022] [Indexed: 11/16/2022] Open
Abstract
The mechanical signals within the extracellular matrix (ECM) regulate cell growth, proliferation and differentiation, and integrins function as the hub between the ECM and cellular actin. Focal adhesions (FAs) are multi‑protein, integrin‑containing complexes, acting as tension‑sensing anchoring points that bond cells to the extracellular microenvironment. Talin‑1 serves as the central protein of FAs that participates in the activation of integrins and connects them with the actin cytoskeleton. As a cytoplasmic protein, Talin‑1 consists of a globular head domain and a long rod comprised of a series of α‑helical bundles. The unique structure of the Talin‑1 rod domain permits folding and unfolding in response to the mechanical stress, revealing various binding sites. Thus, conformation changes of the Talin‑1 rod domain enable the cell to convert mechanical signals into chemical through multiple signaling pathways. The present review discusses the binding partners of Talin‑1, their interactions, effects on the cellular processes, and their possible roles in diseases.
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Affiliation(s)
- Ye Zhao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, Jiangsu 211800, P.R. China
| | - Nikita Lykov
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, Jiangsu 211800, P.R. China
| | - Chimeng Tzeng
- Translational Medicine Research Center-Key Laboratory for Cancer T-Cell Theragnostic and Clinical Translation, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361005, P.R. China
- Xiamen Chang Gung Hospital Medical Research Center, Xiamen, Fujian 361005, P.R. China
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Du Y, Li S, Zhou T, Zhao J, Liu J. SIPA1 boosts migration and proliferation, and blocks apoptosis of glioma by activating the phosphorylation of the FAK signaling pathway. J Med Biochem 2021; 41:108-114. [PMID: 35431649 PMCID: PMC8970579 DOI: 10.5937/jomb0-32903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 08/26/2021] [Indexed: 11/28/2022] Open
Abstract
Background We aimed to analyze the regulatory effects of SIPA1 (signal-induced proliferation-associated protein 1) on glioma progression and the dominant signaling pathway. Methods Differential level of SIPA1 in glioma and normal tissues and cells was determined. Migratory, proliferative, apoptotic and cell cycle progression changes in A172 cells with overexpression or knockdown of SIPA1 were examined. Finally, protein levels of phosphorylated FAKs in A172 cells intervened by SIPA1, and the FAK inhibitor PF562271 were detected. Results SIPA1 was upregulated in glioma cases. Knock-down of SIPA1 reduced migratory and proliferative rates of glioma cells, increased apoptotic cell rate, and declined cell ratio in the S phase. The knockdown of SIPA1 also downregulated cell cycle proteins. In addition, SIPA1 upregulated phosphorylated FAKs in A172 cells and thus boosted malignant phenotypes of glioma. Conclusions SIPA1 is upregulated in glioma that boosts migratory and proliferative potentials of glioma cells by activating the phosphorylation of the FAK signaling pathway.
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Affiliation(s)
- Yuan Du
- Jiamusi University, School of Basic Medicine Science, Jiamusi, China
| | - Shenglan Li
- Capital Medical University, Beijing Tiantan Hospital, Department of Neuro-oncology, Cancer center, Beijing, China
| | - Tong Zhou
- Jiamusi University, School of Pharmacy, Jiamusi, China
| | - Jing Zhao
- First Affiliated Hospital of Jiamusi University, Clinical Laboratory, Jiamusi, China
| | - Jiguang Liu
- Jiamusi University, School of Stomatology, Jiamusi, China
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Ye GY, Zhang ZZ, Zhu CC, Cong ZJ, Cui Z, Chen L, Zhao G. Long Non-Coding RNA LINC01569 Promotes Proliferation and Metastasis in Colorectal Cancer by miR-381-3p/RAP2A Axis. Front Oncol 2021; 11:727698. [PMID: 34422671 PMCID: PMC8378226 DOI: 10.3389/fonc.2021.727698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 07/19/2021] [Indexed: 01/05/2023] Open
Abstract
Background Long non-coding RNAs (lncRNAs) display regulatory function flexibly in tumor onset and developments. Our study aimed to delve into the roles of lncRNA LINC01569 (LINC01569) in colorectal cancer (CRC) progression to study the potential mechanisms. Methods The genetic expression profiles of miR-381-3p and LINC01569 were measured by RT-PCR. The subcellular localization of LINC01569 in CRC cells was identified using subcellular fractionation location. Loss-of-function assays were performed to explore the potential effects of LINC01569 on CRC progression. Dual-luciferase reporter analysis was employed to verify the binding connections among LINC01569, miR-381-3p, and RAP2A. Results LINC01569 expression was distinctly increased in CRC. Curiously, if LINC01569 is removed, CRC cells will not migrate, proliferate, and invade remarkably. Molecular mechanism exploration uncovered that LINC01569 acted as a ceRNA competing with RAP2A to bind with miR-381-3p. Furthermore, rescue experiments corroborated the fact that miR-381-3p suppression reversed the inhibitory actions of LINC01569 knockdown on the expression of RAP2A and CRC progression. Conclusion Overall, our findings indicate that LINC01569 plays a key role in CRC development by means of aiming at the miR-381-3p/RAP2A axis and can be equivalent to an underlying medicinal target to save CRC patients.
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Affiliation(s)
- Guang-Yao Ye
- Department of Gastrointestinal Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zi-Zhen Zhang
- Department of Gastrointestinal Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chun-Chao Zhu
- Department of Gastrointestinal Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhi-Jie Cong
- Department of Gastrointestinal Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhe Cui
- Department of Gastrointestinal Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lu Chen
- Department of Gastrointestinal Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Gang Zhao
- Department of Gastrointestinal Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Shen Y, Dong C, Xiang H, Li C, Zhuang F, Chen Y, Lu Q, Chen Y, Huang B. Engineering Oxygen-Irrelevant Radical Nanogenerator for Hypoxia-Independent Magnetothermodynamic Tumor Nanotherapy. SMALL METHODS 2021; 5:e2001087. [PMID: 34927851 DOI: 10.1002/smtd.202001087] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/15/2020] [Indexed: 06/14/2023]
Abstract
Tumor hypoxia substantially lowers the treatment efficacy of oxygen-relevant therapeutic modalities because the production of reactive oxygen species in oxygen-relevant anticancer modalities is highly dependent on oxygen level in tumor tissues. Here a distinctive magnetothermodynamic anticancer strategy is developed that takes the advantage of oxygen-irrelevant free radicals produced from magnetothermal decomposable initiators for inducing cancer-cell apoptosis in vitro and tumor suppression in vivo. Free-radical nanogenerator is constructed through in situ engineering of a mesoporous silica coating on the surface of superparamagnetic Mn and Co-doped nanoparticles (MnFe2 O4 @CoFe2 O4 , denoted as Mag) toward multifunctionality, where mesoporous structure provides reservoirs for efficient loading of initiators and the Mag core serves as in situ heat source under alternating magnetic field (AMF) actuation. Upon exposure to an exogenous AMF, the magnetic hyperthermia effect of superparamagnetic core lead to the rapid decomposition of the loaded/delivered initiators (AIPH) to produce oxygen-irrelevant free radicals. Both the magnetothermal effect and generation of toxic free radicals under AMF actuation are synergistically effective in promoting cancer-cell death and tumor suppression in the hypoxic tumor microenvironment. The prominent therapeutic efficacy of this radical nanogenerator represents an intriguing paradigm of oxygen-irrelevant nanoplatform for AMF-initiated synergistic cancer treatment.
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Affiliation(s)
- Yujia Shen
- Department of Ultrasound, Zhongshan Hospital, Fudan University, and Shanghai Institute of Medical Imaging, Shanghai, 200032, P. R. China
| | - Caihong Dong
- Department of Ultrasound, Zhongshan Hospital, Fudan University, and Shanghai Institute of Medical Imaging, Shanghai, 200032, P. R. China
| | - Huijing Xiang
- School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China
| | - Cuixian Li
- Department of Ultrasound, Zhongshan Hospital, Fudan University, and Shanghai Institute of Medical Imaging, Shanghai, 200032, P. R. China
| | - Fan Zhuang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, and Shanghai Institute of Medical Imaging, Shanghai, 200032, P. R. China
| | - Yixin Chen
- Department of Ultrasound, Zhongshan Hospital, Fudan University, and Shanghai Institute of Medical Imaging, Shanghai, 200032, P. R. China
| | - Qing Lu
- Department of Ultrasound, Zhongshan Hospital, Fudan University, and Shanghai Institute of Medical Imaging, Shanghai, 200032, P. R. China
| | - Yu Chen
- School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China
| | - Beijian Huang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, and Shanghai Institute of Medical Imaging, Shanghai, 200032, P. R. China
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Zheng S, Zhang Z, Ding N, Sun J, Lin Y, Chen J, Zhong J, Shao L, Lin Z, Xue M. Identification of the angiogenesis related genes for predicting prognosis of patients with gastric cancer. BMC Gastroenterol 2021; 21:146. [PMID: 33794777 PMCID: PMC8017607 DOI: 10.1186/s12876-021-01734-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 03/22/2021] [Indexed: 12/24/2022] Open
Abstract
INTRODUCTION Angiogenesis is a key factor in promoting tumor growth, invasion and metastasis. In this study we aimed to investigate the prognostic value of angiogenesis-related genes (ARGs) in gastric cancer (GC). METHODS mRNA sequencing data with clinical information of GC were downloaded from The Cancer Genome Atlas (TCGA) and the Gene Expression Omnibus (GEO) databases. The differentially expressed ARGs between normal and tumor tissues were analyzed by limma package, and then prognosis‑associated genes were screened using Cox regression analysis. Nine angiogenesis genes were identified as crucially related to the overall survival (OS) of patients through least absolute shrinkage and selection operator (LASSO) regression. The prognostic model and corresponding nomograms were establish based on 9 ARGs and verified in in both TCGA and GEO GC cohorts respectively. RESULTS Eighty-five differentially expressed ARGs and their enriched pathways were confirmed. Significant enrichment analysis revealed that ARGs-related signaling pathway genes were highly related to tumor angiogenesis development. Kaplan-Meier analysis revealed that patients in the high-risk group had worse OS rates compared with the low-risk group in training cohort and validation cohort. In addition, RS had a good prognostic effect on GC patients with different clinical features, especially those with advanced GC. Besides, the calibration curves verified fine concordance between the nomogram prediction model and actual observation. CONCLUSIONS We developed a nine gene signature related to the angiogenesis that can predict overall survival for GC. It's assumed to be a valuable prognosis model with high efficiency, providing new perspectives in targeted therapy.
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Affiliation(s)
- Sheng Zheng
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Gastroenterology, Zhejiang University, Hangzhou, China
| | - Zizhen Zhang
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Gastroenterology, Zhejiang University, Hangzhou, China
| | - Ning Ding
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Gastroenterology, Zhejiang University, Hangzhou, China
| | - Jiawei Sun
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Gastroenterology, Zhejiang University, Hangzhou, China
| | - Yifeng Lin
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Gastroenterology, Zhejiang University, Hangzhou, China
| | - Jingyu Chen
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Gastroenterology, Zhejiang University, Hangzhou, China
| | - Jing Zhong
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Gastroenterology, Zhejiang University, Hangzhou, China
| | - Liming Shao
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Zhenghua Lin
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Gastroenterology, Zhejiang University, Hangzhou, China
| | - Meng Xue
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China. .,Institute of Gastroenterology, Zhejiang University, Hangzhou, China.
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8
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Luinenburg DG, Dinitzen AB, Flohr Svendsen A, Cengiz R, Ausema A, Weersing E, Bystrykh L, de Haan G. Persistent expression of microRNA-125a targets is required to induce murine hematopoietic stem cell repopulating activity. Exp Hematol 2021; 94:47-59.e5. [PMID: 33333212 DOI: 10.1016/j.exphem.2020.12.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 01/17/2023]
Abstract
MicroRNAs (miRs) are small noncoding RNAs that regulate gene expression posttranscriptionally by binding to the 3' untranslated regions of their target mRNAs. The evolutionarily conserved microRNA-125a (miR-125a) is highly expressed in both murine and human hematopoietic stem cells (HSCs), and previous studies have found that miR-125 strongly enhances self-renewal of HSCs and progenitors. In this study we explored whether temporary overexpression of miR-125a would be sufficient to permanently increase HSC self-renewal or, rather, whether persistent overexpression of miR-125a is required. We used three complementary in vivo approaches to reversibly enforce expression of miR-125a in murine HSCs. Additionally, we interrogated the underlying molecular mechanisms responsible for the functional changes that occur in HSCs on overexpression of miR-125a. Our data indicate that continuous expression of miR-125a is required to enhance HSC activity. Our molecular analysis confirms changes in pathways that explain the characteristics of miR-125a overexpressing HSCs. Moreover, it provides several novel putative miR-125a targets, but also highlights the complex molecular changes that collectively lead to enhanced HSC function.
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Affiliation(s)
- Daniëlle G Luinenburg
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Alexander Bak Dinitzen
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Arthur Flohr Svendsen
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Roza Cengiz
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Albertina Ausema
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Ellen Weersing
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Leonid Bystrykh
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Gerald de Haan
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
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Ma N, Du H, Ma G, Yang W, Han Y, Hu Q, Xiao H. Characterization of the Immunomodulatory Mechanism of a Pleurotus eryngii Protein by Isobaric Tags for Relative and Absolute Quantitation Proteomics. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:13189-13199. [PMID: 32227945 DOI: 10.1021/acs.jafc.0c00219] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
PEP 1b is a novel immunoregulatory protein isolated from Pleurotus eryngii, a popular edible mushroom. In this study, isobaric tags for relative and absolute quantitation (iTRAQ) approach and bioinformatics analysis were used to characterize the PEP-1b-induced proteome alterations in Raw 264.7 macrophage cells, to comprehensively excavate the molecular mechanisms involved in the immunoregulatory effects of PEP 1b. In comparison to the control group, PEP 1b treatment significantly changed the expression of 292 proteins, including 191 upregulated and 101 downregulated proteins. Bioinformatics analysis showed that PEP-1b-regulated proteins were involved in 437 biological process domains, 131 cellular component domains, and 90 molecular function domains. Moreover, PEP 1b played the role of immunomodulator by mainly modulating the Rap1 signaling pathway, Wnt signaling pathway, Ras signaling pathway, and PI3K-Akt signaling pathway. Interestingly, PEP 1b regulated the proteins involved in the immune system, signal transduction, and transport processes, which were related to the immunoregulatory effects of PEP 1b. The western blotting analysis confirmed that the immune-boosting activities of PEP 1b were associated with modulating the expression of Sqstm1, Cox2, Rap1b, and Pyk2. The current research provided a comprehensive understanding of the immunoregulatory effects and molecular mechanisms involved in the PEP 1b supplementation.
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Affiliation(s)
- Ning Ma
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, Jiangsu 210023, People's Republic of China
| | - Hengjun Du
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, Jiangsu 210023, People's Republic of China
- Department of Food Science, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Gaoxing Ma
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, Jiangsu 210023, People's Republic of China
- Department of Food Science, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Wenjian Yang
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, Jiangsu 210023, People's Republic of China
| | - Yanhui Han
- Department of Food Science, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Qiuhui Hu
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, Jiangsu 210023, People's Republic of China
| | - Hang Xiao
- Department of Food Science, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
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Shibayama Y, Kubo Y, Nakagawa T, Iseki K. MicroRNA-101-5p Suppresses the Expression of the Ras-Related Protein RAP1A. Biol Pharm Bull 2020; 42:1332-1336. [PMID: 31366868 DOI: 10.1248/bpb.b19-00068] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
MicroRNAs (miRs) are small, non-coding RNAs that negatively regulate gene expression. The stem-loop sequence miR-101-1 generates mature miR-101-5p and miR-101-3p. The function and target mRNA of miR-101-5p have not yet been elucidated in detail. Here, we demonstrate that miR-101-5p inhibits the expression of RAP1A, a member of the RAS gene family. Transfection of a miR-101-5p mimic significantly inhibited the expression of RAP1A mRNA in HeLa, HEK293, A549, and COLO201 cells. The same treatment significantly inhibited cell proliferation. The cytostatic effect with transfection of miR-101-5p was antagonized by treatment with the RAP inhibitor salirasib. These results suggested that miR-101-5p inhibits RAP1A, and thus, the expression levels of miR-101-5p regulate cell proliferation.
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Affiliation(s)
- Yoshihiko Shibayama
- Department of Drug Formulation, Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido
| | - Yoshitada Kubo
- Department of Drug Formulation, Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido
| | - Tsutomu Nakagawa
- Department of Drug Formulation, Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido
| | - Ken Iseki
- Laboratory of Clinical Pharmaceutics and Therapeutics, Graduate School of Pharmaceutical Sciences, Hokkaido University
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11
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Imai T, Tanaka H, Hamazaki Y, Minato N. Rap1 signal modulators control the maintenance of hematopoietic progenitors in bone marrow and adult long-term hematopoiesis. Cancer Sci 2019; 110:1317-1330. [PMID: 30767320 PMCID: PMC6447830 DOI: 10.1111/cas.13974] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 02/07/2019] [Accepted: 02/12/2019] [Indexed: 01/22/2023] Open
Abstract
Adult long‐term hematopoiesis depends on sustaining hematopoietic stem/progenitor cells (HSPC) in bone marrow (BM) niches, where their balance of quiescence, self‐renewal, and hematopoietic differentiation is tightly regulated. Although various BM stroma cells that produce niche factors have been identified, regulation of the intrinsic responsiveness of HSPC to the niche factors remains elusive. We previously reported that mice deficient for Sipa1, a Rap1 GTPase‐activating protein, develop diverse hematopoietic disorders of late onset. Here we showed that transplantation of BM cells expressing membrane‐targeted C3G (C3G‐F), a Rap1 GTP/GDP exchanger, resulted in the progressive decline of the numbers of HSPC repopulated in BM with time and impaired long‐term hematopoiesis of all cell lineages. C3G‐F/HSPC were sustained for months in spleen retaining hematopoietic potential, but these cells inefficiently contributed to overall hematopoietic reconstitution. C3G‐F/HSPC showed enhanced proliferation and differentiation with accelerated progenitor cell exhaustion in response to stem cell factor (SCF). Using a Ba/F3 cell line, we confirmed that the increased basal Rap1GTP levels with C3G‐F expression caused a markedly prolonged activation of c‐Kit receptor and downstream signaling through SCF ligation. A minor population of C3G‐F/HSPC also showed enhanced proliferation in the presence of thrombopoietin (TPO) compared to Vect/HSPC. Current results suggest an important role of basal Rap1 activation status of HSPC in their maintenance in BM for sustaining long‐term adult hematopoiesis.
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Affiliation(s)
- Takahiko Imai
- Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroki Tanaka
- Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yoko Hamazaki
- Center for iPS Research and Application, Kyoto University, Kyoto, Japan
| | - Nagahiro Minato
- Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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12
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Bros M, Youns M, Kollek V, Buchmüller D, Bollmann F, Seo EJ, Schupp J, Montermann E, Usanova S, Kleinert H, Efferth T, Reske-Kunz AB. Differentially Tolerized Mouse Antigen Presenting Cells Share a Common miRNA Signature Including Enhanced mmu-miR-223-3p Expression Which Is Sufficient to Imprint a Protolerogenic State. Front Pharmacol 2018; 9:915. [PMID: 30174602 PMCID: PMC6108336 DOI: 10.3389/fphar.2018.00915] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 07/26/2018] [Indexed: 12/13/2022] Open
Abstract
Dendritic cells (DCs) are pivotal for the induction and maintenance of antigen-specific tolerance and immunity. miRNAs mediate post-transcriptional gene regulation and control in part the differentiation and stimulation-induced immunogenic function of DCs. However, the relevance of miRNAs for the induction and maintenance of a tolerogenic state of DCs has scarcely been highlighted yet. We differentiated mouse bone marrow cells to conventional/myeloid DCs or to tolerogenic antigen presenting cells (APCs) by using a glucocorticoid (dexamethasone) or interleukin-10, and assessed the miRNA expression patterns of unstimulated and LPS-stimulated cell populations by array analysis and QPCR. Differentially tolerized mouse APCs convergingly down-regulated a set of miRNA species at either state of activation as compared with the corresponding control DC population (mmu-miR-9-5p, mmu-miR-9-3p, mmu-miR-155-5p). These miRNAs were also upregulated in control DCs in response to stimulation. In contrast, miRNAs that were convergingly upregulated in both tolerized APC groups at stimulated state (mmu-miR-223-3p, mmu-miR-1224-5p) were downregulated in control DCs in response to stimulation. Overexpression of mmu-miR-223-3p in DCs was sufficient to prevent stimulation-associated acquisition of potent T cell stimulatory capacity. Overexpression of mmu-miR-223-3p in a DC line resulted in attenuated expression of known (Cflar, Rasa1, Ras) mRNA targets of this miRNA species shown to affect pathways that control DC activation. Taken together, we identified sets of miRNAs convergingly regulated in differentially tolerized APCs, which may contribute to imprint stimulation-resistant tolerogenic function as demonstrated for mmu-miR-223-3p. Knowledge of miRNAs with protolerogenic function enables immunotherapeutic approaches aimed to modulate immune responses by regulating miRNA expression.
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Affiliation(s)
- Matthias Bros
- Department of Dermatology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Mahmoud Youns
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Verena Kollek
- Department of Dermatology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Diana Buchmüller
- Department of Dermatology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Franziska Bollmann
- Department of Pharmacology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Ean-Jeong Seo
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Jonathan Schupp
- Department of Dermatology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Evelyn Montermann
- Department of Dermatology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Svetlana Usanova
- Department of Dermatology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Hartmut Kleinert
- Department of Pharmacology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Thomas Efferth
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Angelika B Reske-Kunz
- Department of Dermatology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
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13
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Shimizu A, Zankov DP, Kurokawa-Seo M, Ogita H. Vascular Endothelial Growth Factor-A Exerts Diverse Cellular Effects via Small G Proteins, Rho and Rap. Int J Mol Sci 2018; 19:ijms19041203. [PMID: 29659486 PMCID: PMC5979568 DOI: 10.3390/ijms19041203] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/03/2018] [Accepted: 04/12/2018] [Indexed: 12/18/2022] Open
Abstract
Vascular endothelial growth factors (VEGFs) include five molecules (VEGF-A, -B, -C, -D, and placental growth factor), and have various roles that crucially regulate cellular functions in many kinds of cells and tissues. Intracellular signal transduction induced by VEGFs has been extensively studied and is usually initiated by their binding to two classes of transmembrane receptors: receptor tyrosine kinase VEGF receptors (VEGF receptor-1, -2 and -3) and neuropilins (NRP1 and NRP2). In addition to many established results reported by other research groups, we have previously identified small G proteins, especially Ras homologue gene (Rho) and Ras-related protein (Rap), as important mediators of VEGF-A-stimulated signaling in cancer cells as well as endothelial cells. This review article describes the VEGF-A-induced signaling pathways underlying diverse cellular functions, including cell proliferation, migration, and angiogenesis, and the involvement of Rho, Rap, and their related molecules in these pathways.
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Affiliation(s)
- Akio Shimizu
- Division of Molecular Medical Biochemistry, Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Otsu, Shiga 520-2192, Japan.
| | - Dimitar P Zankov
- Division of Molecular Medical Biochemistry, Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Otsu, Shiga 520-2192, Japan.
| | - Misuzu Kurokawa-Seo
- Department of Molecular Biosciences, Faculty of Life Sciences, Kyoto Sangyo University, Kyoto 603-8555, Japan.
| | - Hisakazu Ogita
- Division of Molecular Medical Biochemistry, Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Otsu, Shiga 520-2192, Japan.
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14
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Sequera C, Manzano S, Guerrero C, Porras A. How Rap and its GEFs control liver physiology and cancer development. C3G alterations in human hepatocarcinoma. Hepat Oncol 2018; 5:HEP05. [PMID: 30302196 PMCID: PMC6168044 DOI: 10.2217/hep-2017-0026] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 03/20/2018] [Indexed: 02/08/2023] Open
Abstract
Rap proteins regulate liver physiopathology. For example, Rap2B promotes hepatocarcinoma (HCC) growth, while Rap1 might play a dual role. The RapGEF, Epac1, activates Rap upon cAMP binding, regulating metabolism, survival, and liver regeneration. A liver specific Epac2 isoform lacking cAMP-binding domain also activates Rap1, promoting fibrosis in alcoholic liver disease. C3G (RapGEF1) is also present in the liver, but mainly as shorter isoforms. Its function in the liver remains unknown. Information from different public genetic databases revealed that C3G mRNA levels increase in HCC, although they decrease in metastatic stages. In addition, several mutations in RapGEF1 gene are present, associated with a reduced patient survival. Based on this, C3G might represent a new HCC diagnostic and prognostic marker, and a therapeutic target.
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Affiliation(s)
- Celia Sequera
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain.,Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain.,Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain.,Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Sara Manzano
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain.,Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain.,Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain.,Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Carmen Guerrero
- Instituto de Biología Molecular y Celular del Cáncer, USAL-CSIC, Salamanca, Spain.,Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain.,Departamento de Medicina, Universidad de Salamanca, Salamanca, Spain.,Instituto de Biología Molecular y Celular del Cáncer, USAL-CSIC, Salamanca, Spain.,Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain.,Departamento de Medicina, Universidad de Salamanca, Salamanca, Spain
| | - Almudena Porras
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain.,Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain.,Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain.,Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
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15
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Shah S, Brock EJ, Ji K, Mattingly RR. Ras and Rap1: A tale of two GTPases. Semin Cancer Biol 2018; 54:29-39. [PMID: 29621614 DOI: 10.1016/j.semcancer.2018.03.005] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 03/16/2018] [Accepted: 03/29/2018] [Indexed: 02/07/2023]
Abstract
Ras oncoproteins play pivotal roles in both the development and maintenance of many tumor types. Unfortunately, these proteins are difficult to directly target using traditional pharmacological strategies, in part due to their lack of obvious binding pockets or allosteric sites. This obstacle has driven a considerable amount of research into pursuing alternative ways to effectively inhibit Ras, examples of which include inducing mislocalization to prevent Ras maturation and inactivating downstream proteins in Ras-driven signaling pathways. Ras proteins are archetypes of a superfamily of small GTPases that play specific roles in the regulation of many cellular processes, including vesicle trafficking, nuclear transport, cytoskeletal rearrangement, and cell cycle progression. Several other superfamily members have also been linked to the control of normal and cancer cell growth and survival. For example, Rap1 has high sequence similarity to Ras, has overlapping binding partners, and has been demonstrated to both oppose and mimic Ras-driven cancer phenotypes. Rap1 plays an important role in cell adhesion and integrin function in a variety of cell types. Mechanistically, Ras and Rap1 cooperate to initiate and sustain ERK signaling, which is activated in many malignancies and is the target of successful therapeutics. Here we review the role activated Rap1 in ERK signaling and other downstream pathways to promote invasion and cell migration and metastasis in various cancer types.
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Affiliation(s)
- Seema Shah
- Program in Cancer Biology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Ethan J Brock
- Program in Cancer Biology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Kyungmin Ji
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Raymond R Mattingly
- Program in Cancer Biology, Wayne State University School of Medicine, Detroit, MI 48201, USA; Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI 48201, USA.
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16
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Tang Z, Peng H, Chen J, Liu Y, Yan S, Yu G, Chen Q, Tang H, Liu S. Rap1b enhances the invasion and migration of hepatocellular carcinoma cells by up-regulating Twist 1. Exp Cell Res 2018; 367:56-64. [PMID: 29559227 DOI: 10.1016/j.yexcr.2018.03.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/15/2018] [Accepted: 03/16/2018] [Indexed: 02/04/2023]
Abstract
Rap1b was found be dysregulated in several types of cancers. Previously, we have demonstrated that Rap1b affects proliferation, migration and invasion of hepatocellular carcinoma (HCC) cells. However, the definite function of Rap1b in HCC remains unknown. Here, we reported that Rap1b was significantly up-regulated in HCC tissues compared with the non-tumoral liver tissues. Overexpression of Rap1b promoted tumor growth and migration in vitro and tumor formation in vivo. Oppositely, inhibition of Rap1b suppressed the proliferation and migration of HCC cells. Mechanism study revealed that Rap1b could up-regulate Twist 1 expression by enhancing its promoter activity. We concluded that Rap1b increased Twist 1 expression by targeting its promoter activity to induce proliferation and migration of HCC cells.
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Affiliation(s)
- Zhenrong Tang
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, China
| | - Hong Peng
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, 1 Yi Xue Yuan Road, Chongqing, China
| | - Juan Chen
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, 1 Yi Xue Yuan Road, Chongqing, China
| | - Yuyang Liu
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, 1 Yi Xue Yuan Road, Chongqing, China
| | - Shaoying Yan
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, 1 Yi Xue Yuan Road, Chongqing, China
| | - Gangfeng Yu
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, 1 Yi Xue Yuan Road, Chongqing, China
| | - Qiuxu Chen
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, 1 Yi Xue Yuan Road, Chongqing, China
| | - Hua Tang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, 1 Yi Xue Yuan Road, Chongqing, China.
| | - Shengchun Liu
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, China.
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17
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Xu Y, Ikeda S, Sumida K, Yamamoto R, Tanaka H, Minato N. Sipa1 deficiency unleashes a host-immune mechanism eradicating chronic myelogenous leukemia-initiating cells. Nat Commun 2018; 9:914. [PMID: 29500416 PMCID: PMC5834470 DOI: 10.1038/s41467-018-03307-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Accepted: 02/05/2018] [Indexed: 02/06/2023] Open
Abstract
Chronic myelogenous leukemia (CML) caused by hematopoietic stem cells expressing the Bcr-Abl fusion gene may be controlled by Bcr-Abl tyrosine kinase inhibitors (TKIs). However, CML-initiating cells are resistant to TKIs and may persist as minimal residual disease. We demonstrate that mice deficient in Sipa1, which encodes Rap1 GTPase-activating protein, rarely develop CML upon transfer of primary hematopoietic progenitor cells (HPCs) expressing Bcr-Abl, which cause lethal CML disease in wild-type mice. Resistance requires both T cells and nonhematopoietic cells. Sipa1−/− mesenchymal stroma cells (MSCs) show enhanced activation and directed migration to Bcr-Abl+ cells in tumor tissue and preferentially produce Cxcl9, which in turn recruits Sipa1−/− memory T cells that have markedly augmented chemotactic activity. Thus, Sipa1 deficiency uncovers a host immune mechanism potentially capable of eradicating Bcr-Abl+ HPCs via coordinated interplay between MSCs and immune T cells, which may provide a clue for radical control of human CML. Chronic myelogenous leukemia (CML)-initiating cells are resistant to kinase inhibitors. Here the authors show that deficiency of the Rap1 GTPase-activating protein Sipa1 in the tumor microenvironment releases an immune response that eradicates CML-initiating cells via interplay between stromal and T cells.
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Affiliation(s)
- Yan Xu
- Department of Immunology and Cell Biology, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan.,DSK Project, Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan
| | - Satoshi Ikeda
- DSK Project, Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan
| | - Kentaro Sumida
- DSK Project, Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan
| | - Ryusuke Yamamoto
- Department of Immunology and Cell Biology, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan.,DSK Project, Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan
| | - Hiroki Tanaka
- DSK Project, Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan
| | - Nagahiro Minato
- Department of Immunology and Cell Biology, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan. .,DSK Project, Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan.
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18
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Li P, Karaczyn AA, McGlauflin R, Favreau-Lessard AJ, Jachimowicz E, Vary CP, Xu K, Wojchowski DM, Sathyanarayana P. Novel roles for podocalyxin in regulating stress myelopoiesis, Rap1a, and neutrophil migration. Exp Hematol 2017; 50:77-83.e6. [PMID: 28408238 DOI: 10.1016/j.exphem.2017.04.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 03/28/2017] [Accepted: 04/03/2017] [Indexed: 12/26/2022]
Abstract
Podocalyxin (Podxl) is a CD34 orthologue and cell surface sialomucin reported to have roles in renal podocyte diaphragm slit development; vascular cell integrity; and the progression of blood, breast, and prostate cancers. Roles for Podxl during nonmalignant hematopoiesis, however, are largely undefined. We have developed a Vav-Cre Podxl knockout (KO) mouse model, and report on novel roles for Podxl in governing stress myelopoiesis. At steady state, Podxl expression among hematopoietic progenitor cells was low level but was induced by granulocyte colony-stimulating factor (G-CSF) in myeloid progenitors and by thrombopoietin in human stem cells. In keeping with low-level Podxl expression at steady state, Vav-Cre deletion of Podxl did not markedly alter peripheral blood cell levels. A G-CSF challenge in Podxl-KO mice, in contrast, hyperelevated peripheral blood neutrophil and monocyte levels. Podxl-KO also substantially heightened neutrophil levels after 5-fluorouracil myeloablation. These loss-of-function phenotypes were selective, and Podxl-KO did not alter lymphocyte, basophil, or eosinophil levels. Within bone marrow (and after G-CSF challenge), Podxl deletion moderately decreased colony forming units-granulocytes, eyrthrocytes, monocyte/macrophages, megakaryocytes and CD16/32posCD11bpos progenitors but did not affect Gr-1pos cell populations. Notably, Podxl-KO did significantly heighten peripheral blood neutrophil migration capacities. To interrogate Podxl's action mechanisms, a co-immunoprecipitation plus liquid chromatography-mass spectrometry approach was applied using hematopoietic progenitors from G-CSF-challenged mice. Rap1a, a Ras-related small GTPase, was a predominant co-retrieved Podxl partner. In bone marrow human progenitor cells, Podxl-KO led to heightened G-CSF activation of Rap1aGTP, and Rap1aGTP inhibition attenuated Podxl-KO neutrophil migration. Studies have revealed novel roles for Podxl as an important modulator of neutrophil and monocyte formation and of Rap1a activation during stress hematopoiesis.
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Affiliation(s)
- Pan Li
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA; Department of Hematology, Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu Province, China
| | - Aldona A Karaczyn
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA
| | - Rose McGlauflin
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA
| | | | - Edward Jachimowicz
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA; COBRE Center of Excellence in Stem Cell Biology and Regenerative Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA
| | - Calvin P Vary
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA; Graduate School of Biomedical Science and Engineering, University of Maine, Orono, ME, USA; Department of Medicine, Tufts University School of Medicine, Boston, MA, USA
| | - Kailin Xu
- Department of Hematology, Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu Province, China; Key Laboratory of Bone Marrow Stem Cell, Xuzhou, Jiangsu Province, China
| | - Don M Wojchowski
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA; COBRE Center of Excellence in Stem Cell Biology and Regenerative Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA; Graduate School of Biomedical Science and Engineering, University of Maine, Orono, ME, USA; Department of Medicine, Tufts University School of Medicine, Boston, MA, USA
| | - Pradeep Sathyanarayana
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA; COBRE Center of Excellence in Stem Cell Biology and Regenerative Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA; Graduate School of Biomedical Science and Engineering, University of Maine, Orono, ME, USA; Department of Medicine, Tufts University School of Medicine, Boston, MA, USA.
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19
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Xue Q, Yu C, Wang Y, Liu L, Zhang K, Fang C, Liu F, Bian G, Song B, Yang A, Ju G, Wang J. miR-9 and miR-124 synergistically affect regulation of dendritic branching via the AKT/GSK3β pathway by targeting Rap2a. Sci Rep 2016; 6:26781. [PMID: 27221778 PMCID: PMC4879704 DOI: 10.1038/srep26781] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 05/06/2016] [Indexed: 12/20/2022] Open
Abstract
A single microRNA (miRNA) can regulate expression of multiple proteins, and expression of an individual protein may be controlled by numerous miRNAs. This regulatory pattern strongly suggests that synergistic effects of miRNAs play critical roles in regulating biological processes. miR-9 and miR-124, two of the most abundant miRNAs in the mammalian nervous system, have important functions in neuronal development. In this study, we identified the small GTP-binding protein Rap2a as a common target of both miR-9 and miR-124. miR-9 and miR-124 together, but neither miRNA alone, strongly suppressed Rap2a, thereby promoting neuronal differentiation of neural stem cells (NSCs) and dendritic branching of differentiated neurons. Rap2a also diminished the dendritic complexity of mature neurons by decreasing the levels of pAKT and pGSK3β. Our results reveal a novel pathway in which miR-9 and miR-124 synergistically repress expression of Rap2a to sustain homeostatic dendritic complexity during neuronal development and maturation.
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Affiliation(s)
- Qian Xue
- Institute of Neurosciences, the Fourth Military Medical University, Xi'an 710032, China
| | - Caiyong Yu
- Institute of Neurosciences, the Fourth Military Medical University, Xi'an 710032, China
| | - Yan Wang
- Oral and maxillofacial surgery, Stomatology Hospital of Xi'an Jiaotong University, 710004, China
| | - Ling Liu
- Institute of Neurosciences, the Fourth Military Medical University, Xi'an 710032, China
| | - Kun Zhang
- Institute of Neurosciences, the Fourth Military Medical University, Xi'an 710032, China
| | - Chao Fang
- Institute of Neurosciences, the Fourth Military Medical University, Xi'an 710032, China
| | - Fangfang Liu
- Institute of Neurosciences, the Fourth Military Medical University, Xi'an 710032, China
| | - Ganlan Bian
- Institute of Neurosciences, the Fourth Military Medical University, Xi'an 710032, China
| | - Bing Song
- Cardiff Institute of Tissue Engineering &Repair, School of Dentistry, Cardiff University, Cardiff, CF14 4XY, UK
| | - Angang Yang
- Department of Immunology, the Fourth Military Medical University, Xi'an 710032, China
| | - Gong Ju
- Institute of Neurosciences, the Fourth Military Medical University, Xi'an 710032, China
| | - Jian Wang
- Institute of Neurosciences, the Fourth Military Medical University, Xi'an 710032, China
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20
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Zhang P, Wang X. Suppression of SIPA-1 expression may reduce bladder cancer invasion and metastasis via the downregulation of E-cadherin and ZO-1. Exp Ther Med 2015; 11:213-217. [PMID: 26889242 DOI: 10.3892/etm.2015.2891] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 06/05/2015] [Indexed: 12/17/2022] Open
Abstract
The aim of the present study was to investigate the capacity of signal-induced proliferation-associated protein 1 (SIPA-1) to regulate bladder cancer cell invasion and metastasis. BIU-87 and T24 cells were transfected with the SIPA gene and SIPA short hairpin (sh)RNA, respectively. Western blot analysis was conducted to analyze the expression levels of SIPA-1, Ras-related protein 1 (Rap1), Rap1 guanosine triphosphate (Rap1GTP), E-cadherin and zona occludens-1 (ZO-1). Cell motility and invasion were evaluated in vitro using wound and Transwell assays. Transfected cells were inoculated into the pelvic region of BALB/c nude mice, and the number of resulting tumors was recorded after 6 weeks. Western blot analysis revealed that expression levels of E-cadherin and ZO-1 were reduced in the cells with enhanced levels of SIPA-1. By contrast, the levels of E-cadherin and ZO-1 were elevated in the cells in which SIPA-1 was knocked down. In comparison with untransfected cells, the cells with reduced levels of SIPA-1 exhibited reduced wound closure and fewer cells crossed the chamber in the Transwell experiment, whereas the cells with enhanced levels of SIPA-1 exhibited increased migration and invasion In vivo, an increased tumor count was obtained in the mice with elevated levels of SIPA-1. Therefore, the results of the present study indicate that SIPA-1 is able to regulate bladder cancer cell metastasis and invasion by reducing the expression of E-cadherin and ZO-1.
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Affiliation(s)
- Ping Zhang
- Department of Urology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430071, P.R. China; Department of Urology, Yichang Central People's Hospital, The First Clinical Medical College, China Three Gorges University, Yichang, Hubei 443003, P.R. China
| | - Xinghuan Wang
- Department of Urology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430071, P.R. China
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Modification of Gene Expression, Proliferation, and Function of OP9 Stroma Cells by Bcr-Abl-Expressing Leukemia Cells. PLoS One 2015. [PMID: 26218064 PMCID: PMC4517910 DOI: 10.1371/journal.pone.0134026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Expression of the Bcr-Abl fusion gene in hematopoietic progenitor cells (HPCs) results in the development of chronic myelogenous leukemia (CML), for which hematopoietic microenvironment plays an important role. We investigated the specific effects of an HPC line transduced with Bcr-Abl, KOBA, on BM-derived OP9 stroma cells. DNA microarray analysis revealed that OP9 cells co-cultured with KOBA cells (OP9/L) show diverse changes in the gene expression. OP9/L cells showed significant down-regulation of Cdkn genes and up-regulation of Icam1, leading to the increased proliferation capacity of OP9 cells and enhanced transmigration of leukemia cells through them. The effects were attributed to direct Notch activation of OP9 cells by KOBA cells. OP9/L cells also showed a markedly altered cytokine gene expression pattern, including a robust increase in a variety of proinflammatory genes and a decrease in hematopoietic cytokines such as Cxcl12, Scf, and Angpt1. Consequently, OP9/L cells promoted the proliferation of KOBA cells more efficiently than parental OP9 cells, whereas the activity supporting normal myelopoiesis was attenuated. In mice bearing KOBA leukemia, the characteristic genetic changes observed in OP9/L cells were reflected differentially in the endothelial cells (ECs) and mesenchymal stroma cells (MCs) of the BM. The ECs were markedly increased with Notch-target gene activation and decreased Cdkn expression, whereas the MCs showed a marked increase in proinflammatory gene expression and a profound decrease in hematopoietic genes. Human CML cell lines also induced essentially similar genetic changes in OP9 cells. Our results suggest that CML cells remodel the hematopoietic microenvironment by changing the gene expression patterns differentially in ECs and MCs of BM.
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