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Naik A, Dalpatraj N, Thakur N. Comparative analysis of the occupancy of Histone H3 Lysine 4 methylation in the cells treated with TGFβ and Interferonγ. Gene 2023:147601. [PMID: 37394048 DOI: 10.1016/j.gene.2023.147601] [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: 05/04/2023] [Revised: 06/21/2023] [Accepted: 06/29/2023] [Indexed: 07/04/2023]
Abstract
In this current study, we have compared our H3K4me3 Chip-Sequencing data in PC3 cells in response to 6h and 24h TGFβ stimulation with the IFNγ stimulated/unstimulated HeLa S3 cells Since both TGFβ and IFNγ play an essential role in tumorigenesis both as a tumor promoter and tumor suppressor and known to antagonize each other's signalling, it would be of utmost importance to find out the regions undergoing histone modification changes in response to TGFβ and IFNγ and compare them to explore the genes common to both as well as the specific for each ligand. Our study has compared the genes showing H3K4me3 occupancy in response to both TGFβ and IFNγ. Several genes were found to be shared between the TGFβ and IFNγ. DAVID Functional enrichment analysis in the TGFβ and IFNγ dataset revealed association of genes with different biological processes such as miRNA-mediated gene silencing, positive regulation of ERK cascade, hypoxia-induced apoptosis repression, translational regulation and molecular functions such as TGFβR activity, GPCR activity, TGFβ binding activity. Further analysis of these genes can reveal fascinating insights into epigenetic regulation by growth factor stimulation.
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Affiliation(s)
- Ankit Naik
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Navrangpura, Ahmedabad-380009, Gujarat, India
| | - Nidhi Dalpatraj
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Navrangpura, Ahmedabad-380009, Gujarat, India
| | - Noopur Thakur
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Navrangpura, Ahmedabad-380009, Gujarat, India.
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Zhang Y, Song Y, Dai J, Wang Z, Zeng Y, Chen F, Zhang P. Endoplasmic Reticulum Stress-Related Signature Predicts Prognosis and Drug Response in Clear Cell Renal Cell Carcinoma. Front Pharmacol 2022; 13:909123. [PMID: 35959432 PMCID: PMC9360548 DOI: 10.3389/fphar.2022.909123] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/13/2022] [Indexed: 11/16/2022] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) is the most common type of kidney cancer. The maximum number of deaths associated with kidney cancer can be attributed to ccRCC. Disruption of cellular proteostasis results in endoplasmic reticulum (ER) stress, which is associated with various aspects of cancer. It is noteworthy that the role of ER stress in the progression of ccRCC remains unclear. We classified 526 ccRCC samples identified from the TCGA database into the C1 and C2 subtypes by consensus clustering of the 295 ER stress-related genes. The ccRCC samples belonging to subtype C2 were in their advanced tumor stage and grade. These samples were characterized by poor prognosis and malignancy immune microenvironment. The upregulation of the inhibitory immune checkpoint gene expression and unique drug sensitivity were also observed. The differentially expressed genes between the two clusters were explored. An 11-gene ER stress-related prognostic risk model was constructed following the LASSO regression and Cox regression analyses. In addition, a nomogram was constructed by integrating the clinical parameters and risk scores. The calibration curves, ROC curves, and DCA curves helped validate the accuracy of the prediction when both the TCGA dataset and the external E-MTAB-1980 dataset were considered. Moreover, we analyzed the differentially expressed genes common to the E-MTAB-1980 and TCGA datasets to screen out new therapeutic compounds. In summary, our study can potentially help in the comprehensive understanding of ER stress in ccRCC and serve as a reference for future studies on novel prognostic biomarkers and treatments.
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Affiliation(s)
- Yuke Zhang
- Department of Urology, West China Hospital of Sichuan University, Chengdu, China
| | - Yancheng Song
- The Second Department of General Surgery, Xuanhan Second People’s Hospital, Dazhou, China
| | - Jiangwen Dai
- Department of Oncology, Chengdu Fifth People’s Hospital, Chengdu, China
| | - Zhaoxiang Wang
- Department of Urology, West China Hospital of Sichuan University, Chengdu, China
| | - Yuhao Zeng
- Department of Urology, West China Hospital of Sichuan University, Chengdu, China
| | - Feng Chen
- Department of Integrated Care Management Center, West China Hospital of Sichuan University, Chengdu, China
- *Correspondence: Feng Chen, ; Peng Zhang,
| | - Peng Zhang
- Department of Urology, West China Hospital of Sichuan University, Chengdu, China
- *Correspondence: Feng Chen, ; Peng Zhang,
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Li J, Li Z, Wang C, Li Z, Xu H, Hu Y, Tan Z, Zhang F, Liu C, Yang M, Wang Y, Jin Y, Peng Z, Biswas S, Zhu L. The Regulatory Effect of VEGF-Ax on Rat Bone Marrow Mesenchymal Stem Cells' Angioblastic Differentiation and Its Proangiogenic Ability. Stem Cells Dev 2020; 29:667-677. [PMID: 32079499 DOI: 10.1089/scd.2019.0198] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jianjun Li
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zhihao Li
- Department of Spinal Surgery, Jingzhou Central Hospital, Jingzhou, China
| | - Chengqiang Wang
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zhijia Li
- Department of Dermatology and Venereology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Haixia Xu
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yunteng Hu
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zhiwen Tan
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Fu Zhang
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Chun Liu
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Minsheng Yang
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yihan Wang
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yanglei Jin
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Ziyue Peng
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Sourabh Biswas
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Lixin Zhu
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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Ma C, Yang Y, Xu L, Tu W, Chen F, Wang J. Rce1 suppresses invasion and metastasis of hepatocellular carcinoma via epithelial-mesenchymal transition induced by the TGF-β1/H-Ras signaling pathway. J Cell Physiol 2019; 235:2506-2520. [PMID: 31506952 DOI: 10.1002/jcp.29155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 08/26/2019] [Indexed: 12/12/2022]
Abstract
Ras converting enzyme 1 (Rce1) plays an important role in invasion and metastasis of malignancy. However, the mechanism has not yet been fully explored in hepatocellular carcinoma (HCC). Primarily, we investigated the expression of Rce1 and H-Ras influence on patient prognosis through the clinical data. Further, we analyzed the regulatory effects of Rce1/H-Ras signal pathway on the epithelial-mesenchymal transition (EMT) in vitro and in vivo. Finally, we screened out the protein which bonds with Rce1 by CO-IP experiment to discuss the mechanism of Rce1 in EMT of HCC. This research revealed a significantly decreased expression of Rce1 in HCC compared with noncancerous tissues (p < .05). In contrast, H-Ras expression was increased in the tumor. The expression of them was a close association with the differentiation and tumor-node-metastasis (TNM) stage of the tumor (p < .001; p = .035, respectively) and Rce1 was an independent prognostic indicator (95%Cl: 0.193-0.821; p = .013). Through targeted regulation of Rce1 by cDNA or small interfering RNA, results show that the lower expression of Rce1 facilitated EMT and promoted the invasion and metastasis of HCC (p < .05). Furthermore, the CO-IP experiment unfolded that Rce1 could bond with farnesyltransferase-β (FNTB) which mediated the expression of H-Ras. Conclusions: Rce1 inhibits EMT via target regulation H-Ras and suppress the early invasion and metastasis of HCC. It may be a potential therapeutic target and prognostic indicator for HCC.
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Affiliation(s)
- Chaoqun Ma
- Department of Biliary and Pancreatic Surgery/Cancer Research Center, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yan Yang
- Department of Hepatobiliary Pancreatic Surgery, First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Lei Xu
- Department of Biliary and Pancreatic Surgery/Cancer Research Center, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wei Tu
- Department of Hepatobiliary Pancreatic Surgery, First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Feng Chen
- Department of Hepatobiliary Pancreatic Surgery, First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Jianming Wang
- Department of Biliary and Pancreatic Surgery/Cancer Research Center, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Department of Hepatobiliary Pancreatic Surgery, Affiliated Tianyou Hospital, Wuhan University of Science & Technology, Wuhan, Hubei, China
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Abstract
Ras converting enzyme 1 (Rce1) is an integral membrane endoprotease localized to the endoplasmic reticulum that mediates the cleavage of the carboxyl-terminal three amino acids from CaaX proteins, whose members play important roles in cell signaling processes. Examples include the Ras family of small GTPases, the γ-subunit of heterotrimeric GTPases, nuclear lamins, and protein kinases and phosphatases. CaaX proteins, especially Ras, have been implicated in cancer, and understanding the post-translational modifications of CaaX proteins would provide insight into their biological function and regulation. Many proteolytic mechanisms have been proposed for Rce1, but sequence alignment, mutational studies, topology, and recent crystallographic data point to a novel mechanism involving a glutamate-activated water and an oxyanion hole. Studies using in vivo and in vitro reporters of Rce1 activity have revealed that the enzyme cleaves only prenylated substrates and the identity of the a2 amino residue in the Ca1a2X sequence is most critical for recognition, preferring Ile, Leu, or Val. Substrate mimetics can be somewhat effective inhibitors of Rce1 in vitro. Small-molecule inhibitor discovery is currently limited by the lack of structural information on a eukaryotic enzyme, but a set of 8-hydroxyquinoline derivatives has demonstrated an ability to mislocalize all three mammalian Ras isoforms, giving optimism that potent, selective inhibitors might be developed. Much remains to be discovered regarding cleavage specificity, the impact of chemical inhibition, and the potential of Rce1 as a therapeutic target, not only for cancer, but also for other diseases.
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Affiliation(s)
| | - Timothy M Dore
- a New York University Abu Dhabi , Abu Dhabi , United Arab Emirates.,b Department of Chemistry , University of Georgia , Athens , GA , USA
| | - Walter K Schmidt
- c Department of Biochemistry & Molecular Biology , University of Georgia , Athens , GA , USA
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