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Cui X, Cao C, Li X, Lin B, Yan A, Yang Y. Succinylation of 14-3-3 theta by CPT1A promotes survival and paclitaxel resistance in nasal type extranodal natural killer/T-cell lymphoma. Transl Oncol 2024; 46:102006. [PMID: 38823259 PMCID: PMC11176827 DOI: 10.1016/j.tranon.2024.102006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/16/2024] [Accepted: 05/06/2024] [Indexed: 06/03/2024] Open
Abstract
BACKGROUND The aggressive and refractory extranodal natural killer/T-cell lymphoma, nasal type (ENKTL-NT) is a subtype of non-Hodgkin's lymphoma. Succinylation promotes progression in a variety of tumors, but its mechanism in ENKTL-NT is unclear. METHODS Bioinformatic analysis was performed to screen differentially expressed genes in the ENKTL dataset. Cell transfection techniques were used for knockdown and overexpression of genes. The mRNA and protein expression were detected using RT-qPCR and western blot, respectively. Immunohistochemical staining was used to assess protein expression in situ. For the detection of cell proliferation activity, CCK-8, clonal formation, and EDU staining assays were used. Flow cytometry was employed to detect apoptosis. Co-immunoprecipitation was utilized for the identification of protein interactions and succinylation modifications. RESULTS Succinyltransferase CPT1A was highly elevated in ENKTL-NT and was associated with a dismal prognosis. CPT1A knockdown suppressed SNK-6 cells' proliferation and induced apoptosis, while these effects were reversed by the overexpression of 14-3-3theta. Co-immunoprecipitation results showed that CPT1A caused succinylation of 14-3-3theta at site of K85, thereby enhancing the protein stability. Suppression of CPT1A-induced succinylation of 14-3-3theta by ST1326 resulted in the inhibition of SNK-6 cell proliferation and increased apoptosis. Paclitaxel combined with knockdown of CPT1A significantly inhibited the proliferation of ENKTL-NT compared to paclitaxel alone. CONCLUSION CPT1A induces succinylation of 14-3-3theta at the K85 site, promoting ENKTL-NT proliferation. The anti-ENKTL activity of paclitaxel was improved when combined with CPT1A knockdown.
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Affiliation(s)
- Xiao Cui
- Department of Otorhinolaryngology, The First Hospital of China Medical University, Shenyang 110003, China
| | - Chengcheng Cao
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Xinyang Li
- Department of Hematology, Shengjing Hospital of China Medical University, Shenyang 110022, China
| | - Biyan Lin
- Department of Otorhinolaryngology, The First Hospital of China Medical University, Shenyang 110003, China
| | - Aihui Yan
- Department of Otorhinolaryngology, The First Hospital of China Medical University, Shenyang 110003, China.
| | - Ying Yang
- Department of Hematology, Shengjing Hospital of China Medical University, Shenyang 110022, China.
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2
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Pavlik T, Konchekov E, Shimanovskii N. Antitumor progestins activity: Cytostatic effect and immune response. Steroids 2024; 210:109474. [PMID: 39048056 DOI: 10.1016/j.steroids.2024.109474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 07/13/2024] [Accepted: 07/21/2024] [Indexed: 07/27/2024]
Abstract
Progestins are used to treat some hormone-sensitive tumors. This review discusses the mechanisms of progestins' effects on tumor cells, the differences in the effects of progesterone and its analogs on different tumor types, and the influence of progestins on the antitumor immune response. Progestins cause a cytostatic effect, but at the same time they can suppress the antitumor immune response, and this can promote the proliferation and metastasis of tumor cells. Such progestins as dienogest, megestrol acetate and levonorgestrel increase the activity of NK-cells, which play a major role in the body's fight against tumor cells. The use of existing progestins and the development of new drugs with gestagenic activity may hold promise in oncotherapy.
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Affiliation(s)
- T Pavlik
- Pirogov Russian National Research Medical University, Russia; Prokhorov General Physics Institute of the Russian Academy of Sciences, Russia.
| | - E Konchekov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Russia; Peoples Friendship University of Russia (RUDN University), Russia
| | - N Shimanovskii
- Pirogov Russian National Research Medical University, Russia
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Li J, Liu J, Tang Y, Zhang H, Zhang Y, Zha X, Zhao X. Role of C/EBP Homologous Protein (CHOP) and Nupr1 Interaction in Endoplasmic Reticulum Stress-Induced Apoptosis of Lens Epithelial Cells. Mol Biotechnol 2024:10.1007/s12033-024-01148-z. [PMID: 38771421 DOI: 10.1007/s12033-024-01148-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 03/05/2024] [Indexed: 05/22/2024]
Abstract
Our study mainly analyzed the mechanism of C/EBP homologous protein (CHOP) and its interacting protein Nupr1 on endoplasmic reticulum stress (ERS) induced lens epithelial cells (LEC) apoptosis. Cell proliferation was detected by CCK-8. Apoptosis was detected by flow cytometry and TUNEL. Nupr1 expression was detected by RT-qPCR. The expressions of CHOP, Nupr1, apoptosis-related protein, and ERS-related protein were detected by Western blot. DCFH-DA probe was used to detect cell ROS. The SOD, GSH-PX, and MDA contents were detected by the kit. Co-IP was used to detect the interaction between CHOP and Nupr1. The morphology of the lens was detected by HE staining. The result shows that Tunicamycin (TU) can induce endoplasmic reticulum stress and apoptosis in LEC in a concentration-dependent manner. TU induction leads to the occurrence of CHOP nuclear translocation. Overexpression of CHOP can further enhance the inhibitory effect of TU on LEC proliferation and the promotion of apoptosis, while knockdown of CHOP has the opposite effect. CHOP and Nupr1 are interacting proteins, and knockdown of Nupr1 or addition of Nupr1 inhibitor ZZW-115 can reverse the effects of TU and overexpression of CHOP, respectively. It has been observed in animal experiments that treatment with oe-CHOP can further aggravate the pathological lesions of the rat lens, while ZZW-115 can reverse the effect of oe-CHOP to a certain extent and improve the lesions of the rat lens. Overall, CHOP interacts with Nupr1 to regulate apoptosis caused by ERS and mediate cataract progression in rats, and this study provides a new potential therapeutic target for the treatment of cataract.
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Affiliation(s)
- Jinghua Li
- Department of Ophthalmology, The Second Affiliated Hospital of Kunming Medical University, No.374 Yunnan-Burma Avenue, Wuhua District, Kunming, 650000, Yunnan, China
| | - Junyi Liu
- Department of Ophthalmology, The Second Affiliated Hospital of Kunming Medical University, No.374 Yunnan-Burma Avenue, Wuhua District, Kunming, 650000, Yunnan, China
| | - Yongying Tang
- Department of Ophthalmology, The Second Affiliated Hospital of Kunming Medical University, No.374 Yunnan-Burma Avenue, Wuhua District, Kunming, 650000, Yunnan, China
| | - Hong Zhang
- Department of Ophthalmology, The Second Affiliated Hospital of Kunming Medical University, No.374 Yunnan-Burma Avenue, Wuhua District, Kunming, 650000, Yunnan, China
| | - Yuanping Zhang
- Department of Ophthalmology, The Second Affiliated Hospital of Kunming Medical University, No.374 Yunnan-Burma Avenue, Wuhua District, Kunming, 650000, Yunnan, China
| | - Xu Zha
- Department of Ophthalmology, The Second Affiliated Hospital of Kunming Medical University, No.374 Yunnan-Burma Avenue, Wuhua District, Kunming, 650000, Yunnan, China.
| | - Xueying Zhao
- Department of Ophthalmology, The Second Affiliated Hospital of Kunming Medical University, No.374 Yunnan-Burma Avenue, Wuhua District, Kunming, 650000, Yunnan, China.
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4
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Wang P, Zhang H, Guo K, Liu C, Chen S, Pu B, Chen S, Feng T, Jiao H, Gao C. Rapamycin inhibits B16 melanoma cell viability invitro and invivo by inducing autophagy and inhibiting the mTOR/p70‑S6k pathway. Oncol Lett 2024; 27:140. [PMID: 38385108 PMCID: PMC10877231 DOI: 10.3892/ol.2024.14273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 01/19/2024] [Indexed: 02/23/2024] Open
Abstract
Rapamycin is an immunosuppressant that has been shown to prevent tumor growth following organ transplantation. However, its exact mode of antitumor action remains unknown. The present study used the B16-F10 (B16) murine melanoma model to explore the antitumor mechanism of rapamycin, and it was revealed that rapamycin reduced B16 cell viability in vitro and in vivo. In addition, in vitro and in vivo, the results of western blotting showed that rapamycin reduced Bcl2 expression, and enhanced the protein expression levels of cleaved caspase 3 and Bax, indicating that it can induce the apoptosis of B16 melanoma cells. Furthermore, the results of cell cycle analysis and western blotting showed that rapamycin induced B16 cell cycle arrest in the G1 phase, based on the reduction in the protein expression levels of CDK1, cyclin D1 and CDK4, as well as the increase in the percentage of cells in G1 phase. Rapamycin also significantly increased the number of autophagosomes in B16 melanoma cells, as determined by transmission electron microscopy. Furthermore, the results of RT-qPCR and western blotting showed that rapamycin upregulated the protein expression levels of microtubule-associated protein light chain 3 (LC3) and Beclin-1, while downregulating the expression of p62 in vitro and in vivo, thus indicating that rapamycin could trigger cellular autophagy. The present study revealed that rapamycin in combination with chloroquine (CQ) further increased LC3 expression compared with that in the CQ group, suggesting that rapamycin induced an increase in autophagy in B16 cells. Furthermore, the results of western blotting showed that rapamycin blocked the phosphorylation of p70 ribosomal S6 kinase (p70-S6k) and mammalian target of rapamycin (mTOR) proteins in vitro and in vivo, thus suggesting that rapamycin may exert its antitumor effect by inhibiting the phosphorylation of the mTOR/p70-S6k pathway. In conclusion, rapamycin may inhibit tumor growth by inducing cellular G1 phase arrest and apoptosis. In addition, rapamycin may exert its antitumor effects by inducing the autophagy of B16 melanoma cells in vitro and in vivo, and the mTOR/p70-S6k signaling pathway may be involved in this process.
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Affiliation(s)
- Penghui Wang
- Department of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Haifang Zhang
- Hainan Institute for Drug Control, Haikou, Hainan 570216, P.R. China
| | - Kaikai Guo
- Department of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Chun Liu
- Hainan Institute for Drug Control, Haikou, Hainan 570216, P.R. China
| | - Shimin Chen
- Department of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Baopeng Pu
- Department of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Sirun Chen
- Hainan Medical University Press, Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Tong Feng
- School of Pharmacy, Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Hanyi Jiao
- Department of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Chang Gao
- Department of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, Hainan 570100, P.R. China
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Hsu JL, Leu WJ, Hsu LC, Hsieh CH, Guh JH. Doxazosin inhibits vasculogenic mimicry in human non‑small cell lung cancer through inhibition of the VEGF‑A/VE‑cadherin/mTOR/MMP pathway. Oncol Lett 2024; 27:170. [PMID: 38455663 PMCID: PMC10918514 DOI: 10.3892/ol.2024.14303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 01/25/2024] [Indexed: 03/09/2024] Open
Abstract
Lung cancer is the leading cause of cancer-related death worldwide, and ~85% of lung cancers are non-small cell lung cancer (NSCLC), which has a low 5-year overall survival rate and high mortality. Several therapeutic strategies have been developed, such as targeted therapy, immuno-oncotherapy and combination therapy. However, the low survival rate indicates the urgent need for new NSCLC treatments. Vasculogenic mimicry (VM) is an endothelial cell-free tumor blood supply system of aggressive and metastatic tumor cells present during tumor neovascularization. VM is clinically responsible for tumor metastasis and resistance, and is correlated with poor prognosis in NSCLC, making it a potential therapeutic target. In the present study, A549 cells formed glycoprotein-rich lined tubular structures, and transcript levels of VM-related genes were markedly upregulated in VM-forming cells. Based on a drug repurposing strategy, it was demonstrated that doxazosin (an antihypertensive drug) displayed inhibitory activity on VM formation at non-cytotoxic concentrations. Doxazosin significantly reduced the levels of vascular endothelial growth factor A (VEGF-A) and matrix metalloproteinase-2 (MMP-2) in the cell media during VM formation. Further experiments revealed that the protein expression levels of VEGF-A and vascular endothelial-cadherin (VE-cadherin), which contribute to tumor aggressiveness and VM formation, were downregulated following doxazosin treatment. Moreover, the downstream signaling Ephrin type-A receptor 2 (EphA2)/AKT/mTOR/MMP/Laminin-5γ2 network was inhibited in response to doxazosin treatment. In conclusion, the present study demonstrated that doxazosin displayed anti-VM activity in an NSCLC cell model through the downregulation of VEGF-A and VE-cadherin levels, and the suppression of signaling pathways related to the receptor tyrosine kinase, EphA2, protein kinases, AKT and mTOR, and proteases, MMP-2 and MMP-9. These results support the add-on anti-VM effect of doxazosin as a potential agent against NSCLC.
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Affiliation(s)
- Jui-Ling Hsu
- Department of Nursing, Division of Basic Medical Sciences, Chang-Gung University of Science and Technology, Taoyuan 333, Taiwan, R.O.C
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei 100, Taiwan, R.O.C
- Division of Hematology-Oncology, Department of Internal Medicine, New Taipei Municipal TuCheng Hospital, New Taipei City 236, Taiwan, R.O.C
| | - Wohn-Jenn Leu
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei 100, Taiwan, R.O.C
| | - Lih-Ching Hsu
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei 100, Taiwan, R.O.C
| | - Chia-Hsun Hsieh
- Division of Hematology-Oncology, Department of Internal Medicine, New Taipei Municipal TuCheng Hospital, New Taipei City 236, Taiwan, R.O.C
- Division of Medical Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan 333, Taiwan, R.O.C
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan, R.O.C
| | - Jih-Hwa Guh
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei 100, Taiwan, R.O.C
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Gao Y, Yu M, Liu Z, Liu Y, Kong Z, Zhu C, Qin X, Li Y, Tang L. m 6A demethylase ALKBH5 maintains stemness of intrahepatic cholangiocarcinoma by sustaining BUB1B expression and cell proliferation. Transl Oncol 2024; 41:101858. [PMID: 38242006 PMCID: PMC10825528 DOI: 10.1016/j.tranon.2023.101858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/27/2023] [Accepted: 12/04/2023] [Indexed: 01/21/2024] Open
Abstract
ALKBH5 plays critical roles in various cellular processes via post-transcriptional regulation of oncogenes or tumor suppressors in an N6-methyladenosine (m6A)-dependent manner. However, its function in intrahepatic cholangiocarcinoma (ICC) remains unclear. In the present study, bioinformatic analyses of The Cancer Genome Atlas (TCGA) data were performed, and the association of ALKBH5 in predicting overall survival in patients with ICC was investigated. Then, the clinical data of patients from The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University (Changzhou, China) was used to reveal the overall survival of patients with ICC with different ALKBH5 expression levels by Kaplan-Meier survival analysis. Subsequently, in vitro and in vivo studies were conducted to explore and verify the downstream genes regulated by ALKBH5. The results from TCGA data demonstrated that ALKBH5 expression is elevated in ICC and that patients with high ALKBH5 expression exhibited poor survival compared with patients with low expression. In addition, in vitro assays demonstrated that ALKBH5 promoted cell viability and maintained the stemness of ICC cells, leading to ICC progression. The present study also demonstrated that BUB1 mitotic checkpoint serine/threonine kinase B (BUB1B) is the downstream gene regulated by ALKBH5 and targeting BUB1B suppressed cell growth. The in vitro and vivo experiments revealed that ALKBH5 might function through BUB1B to maintain the stemness of ICC and that altering BUB1B may suppress ICC progression.
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Affiliation(s)
- Yuan Gao
- The Institute of Hepatobiliary and pancreatic diseases, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213000, China; Department of Hepato-biliary-pancreatic Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213000, China
| | - Miao Yu
- Department of Bioinformatics, Nanjing Medical University, Nanjing 211166, China
| | - Zengyuan Liu
- The Third People's Provincial Hospital of Henan Province, Zhengzhou, 450000, Henan, China
| | - Yi Liu
- Department of Hepato-biliary-pancreatic Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213000, China
| | - Zhijun Kong
- Department of Hepato-biliary-pancreatic Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213000, China
| | - Chunfu Zhu
- Department of Hepato-biliary-pancreatic Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213000, China
| | - Xihu Qin
- Department of Hepato-biliary-pancreatic Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213000, China
| | - Yan Li
- Department of Bioinformatics, Nanjing Medical University, Nanjing 211166, China.
| | - Liming Tang
- Gastrointestinal Surgery and Central Laboratory, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou 213000, China.
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7
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Wang Y, Hu J, Chen C, Li Y. PTTG1 induces pancreatic cancer cell proliferation and promotes aerobic glycolysis by regulating c-myc. Open Life Sci 2024; 19:20220813. [PMID: 38465336 PMCID: PMC10921497 DOI: 10.1515/biol-2022-0813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 03/12/2024] Open
Abstract
This study aimed to clarify the role of pituitary tumor-transforming gene 1 (PTTG1) in proliferation, migration, invasion, and aerobic glycolysis of pancreatic cancer cells, and evaluate the potential of PTTG1 as a therapeutic target. PTTG1 expression in pancreatic cancers was analyzed using the GEPIA databank. In the Panc1 cell with the PTTG1 knockdown or Mia-PaCa2 cells with PTTG1 overexpression, the cell proliferation was evaluated using cell viability curves and colony formation, and wound heal assay and transwell assay were performed to evaluate the migration and invasion, respectively. Furthermore, a western blot was performed to evaluate the expressions of PTTG1, proliferating cell nuclear antigen, E-cadherin, N-cadherin, and c-myc. Meanwhile, the glucose uptake, extracellular acidification rates (ECAR), and oxygen consumption rates (OCR) were analyzed. Our results showed that PTTG1 expression is upregulated in pancreatic cancer, which promoted cell proliferation. Low PTTG1 contributed to higher disease-free survival and overall survival. In Panc1 cell, PTTG1 knockdown resulted in reduced cell viability and colony formation. The migration and invasion abilities of the cells were also reduced in Panc1 with PTTG1 knockdown. Correspondingly, PTTG1 knockdown decreased c-myc expression, glucose uptake, ECAR, and OCR in Panc1 cells. In Mia-PaCa2 cells, PTTG1 overexpression promoted cell proliferation, aerobic glycolysis, and translocation of β-catenin to the nucleus by regulating c-myc. In conclusion, PTTG1 induces proliferation, migration, and invasion, and promotes aerobic glycolysis in pancreatic cancer cells via regulating c-myc, demonstrating the potential of PTTG1 as a therapeutic target.
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Affiliation(s)
- Yong Wang
- Department of General Surgery, Suqian First Hospital, No. 120 Suzhi Road, Sucheng District, Suqian, Jiangsu Province, 223800, China
| | - Jianping Hu
- Department of General Surgery, Suqian First Hospital, No. 120 Suzhi Road, Sucheng District, Suqian, Jiangsu Province, 223800, China
| | - Chen Chen
- Department of General Surgery, Suqian First Hospital, No. 120 Suzhi Road, Sucheng District, Suqian, Jiangsu Province, 223800, China
| | - Yongbo Li
- Department of General Surgery, Suqian First Hospital, No. 120 Suzhi Road, Sucheng District, Suqian, Jiangsu Province, 223800, China
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Wang J, Feng Y, Qi Z, Li J, Chen Z, Zhang J, Zhu D. The role and mechanism of esketamine in preventing and treating remifentanil-induced hyperalgesia based on the NMDA receptor-CaMKII pathway. Open Life Sci 2024; 19:20220816. [PMID: 38314140 PMCID: PMC10836417 DOI: 10.1515/biol-2022-0816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 02/06/2024] Open
Abstract
Remifentanil-induced hyperalgesia (RIH) is a common clinical phenomenon that limits the use of opioids in pain management. Esketamine, a non-competitive N-methyl-d-aspartate (NMDA) receptor antagonist, has been shown to prevent and treat RIH. However, the underlying effect mechanism of esketamine on RIH remains unclear. This study aimed to investigate the role and mechanism of esketamine in preventing and treating RIH based on the NMDA receptor-CaMKIIα pathway. In this study, an experimental animal model was used to determine the therapeutic effect of esketamine on pain elimination. Moreover, the mRNA transcription and protein expression levels of CaMKII and GluN2B were investigated to offer evidence of the protective capability of esketamine in ameliorating RIH. The results demonstrated that esketamine attenuated RIH by inhibiting CaMKII phosphorylation and downstream signaling pathways mediated by the NMDA receptor. Furthermore, ketamine reversed the upregulation of spinal CaMKII induced by remifentanil. These findings suggest that the NMDA receptor-CaMKII pathway plays a critical role in the development of RIH, and ketamine's effect on this pathway may provide a new therapeutic approach for the prevention and treatment of RIH.
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Affiliation(s)
- Jiafang Wang
- Department of Anesthesiology, Wuhan No. 1 Hospital, No. 215 Zhongshan Avenue, Qiaokou District, Wuhan, Hubei, 430022, China
| | - Yankun Feng
- Department of Anesthesiology, Wuhan No. 1 Hospital, No. 215 Zhongshan Avenue, Qiaokou District, Wuhan, Hubei, 430022, China
| | - Zhong Qi
- Department of Anesthesiology, Wuhan No. 1 Hospital, No. 215 Zhongshan Avenue, Qiaokou District, Wuhan, Hubei, 430022, China
| | - Jin Li
- Department of Anesthesiology, Wuhan No. 1 Hospital, No. 215 Zhongshan Avenue, Qiaokou District, Wuhan, Hubei, 430022, China
| | - Zhijun Chen
- Department of Anesthesiology, Wuhan No. 1 Hospital, No. 215 Zhongshan Avenue, Qiaokou District, Wuhan, Hubei, 430022, China
| | - Jinming Zhang
- Hubei Provincial Key Laboratory for Applied Toxicology, Hubei Center for Disease Control and Prevention, No. 35 Zhuodaoquan North Road, Hongshan District, Wuhan 430079, China
| | - Degang Zhu
- Department of Anesthesiology, Wuhan No. 1 Hospital, No. 215 Zhongshan Avenue, Qiaokou District, Wuhan, Hubei, 430022, China
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9
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Wang H, Guo Q, Wang M, Liu C, Tian Z. PCSK9 promotes tumor cell proliferation and migration by facilitating CCL25 secretion in esophageal squamous cell carcinoma. Oncol Lett 2023; 26:500. [PMID: 37854863 PMCID: PMC10579978 DOI: 10.3892/ol.2023.14086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 09/06/2023] [Indexed: 10/20/2023] Open
Abstract
Proprotein convertase subtilisin/kexin type 9 (PCSK9) serves an important role in maintaining plasma cholesterol levels, and fatty acid metabolism is involved in the progression of various types of cancer. In the present study, the role of PCSK9 in the development of esophageal squamous cell carcinoma (ESCC) was investigated. PCSK9 expression was compared between ESCC and normal esophageal epithelial tissues using reverse transcription-quantitative PCR. In addition, the association between PCSK9 expression and clinical staging and prognosis was assessed by immunohistochemistry. The effects of PCSK9 overexpression or knockdown on cell proliferation was evaluated using Cell Counting Kit-8 and colony formation assays. The invasion and migration of cancer cells was assessed using wound healing and Transwell assays. Western blotting was performed to evaluate changes in the expression levels of epithelial-mesenchymal transition (EMT)-related proteins. ELISA was performed to detect the effects of PCSK9 on chemokine (C-C motif) ligand 25 (CCL25) secretion. The results revealed that PCSK9 was highly expressed in ESCC tissues compared with that in normal esophageal tissues, and the high expression of PCSK9 was associated with a poor prognosis. Furthermore, PCSK9 could promote the proliferation, migration and invasion of ESCC cells in vitro. Mechanistically, PCSK9 could promote EMT by secreting CCL25. In conclusion, patients with ESCC may benefit from a novel therapeutic strategy based on these findings.
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Affiliation(s)
- Haijun Wang
- Department of Thoracic Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050010, P.R. China
- Department of Thoracic Surgery, Xingtai People's Hospital, Xingtai, Hebei 054000, P.R. China
| | - Qiang Guo
- Department of Thoracic Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050010, P.R. China
| | - Mingbo Wang
- Department of Thoracic Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050010, P.R. China
| | - Changjiang Liu
- Department of Thoracic Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050010, P.R. China
| | - Ziqiang Tian
- Department of Thoracic Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050010, P.R. China
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10
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Najafi A, Valadan R, Asgarian-Omran H, Rafiei A, Tehrani M. Single domain antibodies specific for HER2 dimerization domain effectively disrupts HER2 dimerization. Int Immunopharmacol 2023; 124:110999. [PMID: 37804659 DOI: 10.1016/j.intimp.2023.110999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/23/2023] [Accepted: 09/24/2023] [Indexed: 10/09/2023]
Abstract
Dimer-dependent phosphorylation of HER2 receptor is a key event for the signal transduction of HER family of receptors which correlates with tumor invasion and metastasis. New generation of therapies based on dimerization domain inhibition using monoclonal or fragment antibodies was introduced. A potent method for manufacturing antibodies and antibody fragments is the phage display antibody library method. A recombinant phage was generated using the phage display method from synthetic dAb library. Subtractive biopanning was performed on sepharose 4b resin. Evaluation of success of subtractive biopanning was confirmed by the PCR fingerprinting after the fourth round of biopanning. The fourth round of biopanning results in the isolation of several dimerization domain reactive clones based on the polyclonal phage ELISA results. Monoclonal phage cell ELISA was used to select the positive clones with the highest affinity, and they were subsequently employed for functional tests. Cell-ELISA, MTT assay and dimerization inhibition test revealed that the reactivity and specificity of the selected monoclonal phage to dimerization domain of HER2. Further, Annexin V/PI staining and gene expression analysis showed that increased apoptosis rates. Also, in silico binding of the selected clones to conformational structure of HER2 was applied, using protein-protein docking tool of the ICM-Pro software, and showed sdAbs were specifically interacted with dimerization domain of the receptor. In conclusion, we have identified a single domain targeting HER2 dimerization, which represents a promising therapeutic and diagnostic candidate for HER2-positive cancers. Purified sdAb needs to more research to evaluate it both in vivo and in vitro via functional tests to determine if it can be applied for treatment and diagnostics.
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Affiliation(s)
- Ahmad Najafi
- Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Reza Valadan
- Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; Molecular and Cell-Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Hossein Asgarian-Omran
- Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; Molecular and Cell-Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Alireza Rafiei
- Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; Molecular and Cell-Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Mohsen Tehrani
- Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; Molecular and Cell-Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
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Hu L, Xu C, Tang X, Yu S, Wang L, Li Q, Zhou X. Fine particulate matter promotes airway inflammation and mucin production by activating endoplasmic reticulum stress and the IRE1α/NOD1/NF‑κB pathway. Int J Mol Med 2023; 52:96. [PMID: 37654182 PMCID: PMC10555484 DOI: 10.3892/ijmm.2023.5299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 08/16/2023] [Indexed: 09/02/2023] Open
Abstract
Fine particulate matter (PM2.5) is a type of small particle that is <2.5 µm in diameter that may cause airway inflammation. Thus, the present study aimed to explore the effects of PM2.5 on endoplasmic reticulum (ER) stress and airway inflammation in human airway epithelial cells. For this purpose, HBE135‑E6E7 airway epithelial cells were cultured and exposed to specific concentrations of PM2.5 for various periods of time, and cell viability was determined using a Cell Counting Kit‑8 assay. The results of the present study demonstrated that exposure to PM2.5 increased the mRNA and protein expression levels of interleukin (IL)‑6, tumor necrosis factor (TNF)‑α and mucin 5AC (MUC5AC). Moreover, the expression levels of ER stress‑related proteins, such as glucose‑regulated protein 78, CCAAT‑enhancer binding protein homologous protein, activating transcription factor 6, protein kinase R‑like ER kinase (PERK), phosphorylated (p‑)PERK, inositol‑requiring enzyme 1α (IRE1α) and p‑IRE1α, and nucleotide‑binding oligomerization domain 1 (NOD1) expression levels were increased following exposure to PM2.5. Transfection with IRE1α small interfering RNA (siRNA) led to the increased production of IL‑6, TNF‑α and MUC5AC. Moreover, the expression of NOD1 and the translocation of NF‑κB p65 were inhibited following transfection with IRE1α siRNA. In addition, the results of the present study demonstrated that transfection with NOD1 siRNA decreased the production of IL‑6, TNF‑α and MUC5AC, and decreased the translocation of NF‑κB p65. The expression levels of IL‑6, TNF‑α and MUC5AC were increased in the HBE135‑E6E7 cells following treatment with C12‑iE‑DAP, a NOD1 agonist. Moreover, treatment with C12‑iE‑DAP led to the activation of NF‑κB p65. Collectively, the results of the present study suggest that PM2.5 promotes airway inflammation and mucin production by activating ER stress in HBE135‑E6E7 airway epithelial cells, and that the IRE1α/NOD1/NF‑κB pathway may be involved in this process.
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Affiliation(s)
- Lihua Hu
- Department of Respiratory Medicine, The First Affiliated Hospital of Hainan Medical University
- Hainan Province Clinical Medical Center of Respiratory Disease, Haikou, Hainan 570102
| | - Chaoqun Xu
- Department of Respiratory Medicine, The First Affiliated Hospital of Hainan Medical University
- Emergency and Trauma College, Hainan Medical University, Haikou, Hainan 579199, P.R. China
| | - Xiang Tang
- Department of Respiratory Medicine, The First Affiliated Hospital of Hainan Medical University
- Hainan Province Clinical Medical Center of Respiratory Disease, Haikou, Hainan 570102
| | - Shanjun Yu
- Department of Respiratory Medicine, The First Affiliated Hospital of Hainan Medical University
- Hainan Province Clinical Medical Center of Respiratory Disease, Haikou, Hainan 570102
| | - Lijun Wang
- Department of Respiratory Medicine, The First Affiliated Hospital of Hainan Medical University
- Hainan Province Clinical Medical Center of Respiratory Disease, Haikou, Hainan 570102
| | - Qi Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Hainan Medical University
- Hainan Province Clinical Medical Center of Respiratory Disease, Haikou, Hainan 570102
| | - Xiangdong Zhou
- Department of Respiratory Medicine, The First Affiliated Hospital of Hainan Medical University
- Hainan Province Clinical Medical Center of Respiratory Disease, Haikou, Hainan 570102
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