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Yoo H, Kim HS. Clinicopathological and Prognostic Values of Telomerase Reverse Transcriptase ( TERT) Promoter Mutations in Ovarian Clear Cell Carcinoma for Predicting Tumor Recurrence, Platinum Resistance and Survival. Cancer Genomics Proteomics 2023; 20:626-636. [PMID: 37889060 PMCID: PMC10614067 DOI: 10.21873/cgp.20411] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 10/28/2023] Open
Abstract
BACKGROUND/AIM A small subset of patients with ovarian clear cell carcinoma (OCCC) harbors telomerase reverse transcriptase promoter (TERTp) mutations. We aimed to analyze the clinicopathological and molecular characteristics of TERTp-mutant OCCC and investigate whether TERTp mutations are associated with the clinicopathological characteristics and outcomes of patients with OCCC. PATIENTS AND METHODS We included 11 OCCC cases in our study. Targeted sequencing was performed with a thorough review of pathology slides and electronic medical records. RESULTS Eleven OCCCs harbored two hotspot TERTp mutations: c.1-146C>T (6/11) and c.1-124C>T (5/11). All patients (11/11) who underwent postoperative adjuvant chemotherapy experienced tumor recurrence, and eight of them were classified as platinum-resistant. TERTp-mutant OCCC showed significantly higher frequencies of postoperative recurrence and relapse within six months of chemotherapy. TERTp mutations significantly predicted disease-free survival (DFS) in patients with OCCC. CONCLUSION We demonstrate that TERTp mutations have significant prognostic value for predicting tumor recurrence, platinum resistance, and worse DFS in patients with OCCC.
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Affiliation(s)
- Hyunwoo Yoo
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Hyun-Soo Kim
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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Yao Y, Lin M, Liu Z, Liu M, Zhang S, Zhang Y. Hesperidin Inhibits Lung Cancer In Vitro and In Vivo Through PinX1. Front Pharmacol 2022; 13:918665. [PMID: 35847001 PMCID: PMC9283948 DOI: 10.3389/fphar.2022.918665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 05/20/2022] [Indexed: 11/23/2022] Open
Abstract
New drugs or active leads with high efficiency and low toxicity are needed in the treatment of lung cancer. Natural products are an important source of anti-tumor drugs. At present, there are many molecular-targeted anti-tumor drugs derived from natural products or their derivatives for tumor treatment or in clinical trials. Hesperidin is a flavanone isolated from the Rutaceae plant lime Citrus aurantium L. or Citrus sinensis Osbeck. It has been considered to inhibit cancer cell viability in vitro. However, the effect of hesperidin on lung cancer and its underlying mechanism remain unclear. In this study, we found that the pinX1 expression level is closely related to overall survival and plays an important role in regulating lung cancer cell proliferation, migration, invasion, and senescence. More importantly, hesperidin significantly increased pinX1 protein expression, and knockdown pinX1 by its specific siRNA blocked the protective effects of hesperidin. Moreover, we also assessed that hesperidin at 100 mg/kg is safe in vivo. These findings showed that hesperidin is a potential therapeutic candidate for preventing the progression of lung cancer.
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Affiliation(s)
- Yang Yao
- Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing, China
- Department of Basic Medicine, Chongqing Three Gorges Medical College, Chongqing, China
- Ministry of Public Infrastructure, Chongqing Three Gorges Medical College, Chongqing, China
| | - Mingyue Lin
- Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing, China
- Department of Basic Medicine, Chongqing Three Gorges Medical College, Chongqing, China
| | - Zhujun Liu
- Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing, China
- Department of Basic Medicine, Chongqing Three Gorges Medical College, Chongqing, China
| | - Mengyang Liu
- Department of Pharmacy, Anhui Medical University, Hefei, China
| | - Shiheng Zhang
- Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing, China
- Department of Basic Medicine, Chongqing Three Gorges Medical College, Chongqing, China
- *Correspondence: Shiheng Zhang, ; Yukun Zhang,
| | - Yukun Zhang
- Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing, China
- Department of Basic Medicine, Chongqing Three Gorges Medical College, Chongqing, China
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
- *Correspondence: Shiheng Zhang, ; Yukun Zhang,
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Xiang Y, Chen Q, Li Q, Liang C, Cao W. The expression level of chicken telomerase reverse transcriptase in tumors induced by ALV-J is positively correlated with methylation and mutation of its promoter region. Vet Res 2022; 53:49. [PMID: 35739589 PMCID: PMC9229480 DOI: 10.1186/s13567-022-01069-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 05/30/2022] [Indexed: 11/10/2022] Open
Abstract
Avian leukosis virus subgroup J (ALV-J) can cause neoplastic diseases in poultry and is still widely prevalent in China. Chicken telomerase reverse transcriptase (chTERT) is the core component of telomerase, which is closely related to the occurrence and development of tumors. Our previous studies showed that chTERT is overexpressed in ALV-J tumors, but the mechanism is still not completely clear. Therefore, this study aims to analyze the possible molecular mechanism of chTERT overexpression in ALV-J tumors from the perspective of DNA methylation and promoter mutation. Methylation sequencing of the chTERT amplicon showed that ALV-J replication promoted the methylation level of the chTERT promoter. And the methylation level of the chTERT promoter in ALV-J tumors was significantly higher than that in tumor-adjacent and normal tissues. Compared with the tumor-adjacent and normal tissues, the chTERT promoter in each ALV-J tumors tested had a mutation of -183 bp C > T, and 36.0% (9/25) of the tumors also had mutations of -184 bp T > C, -73 bp::GGCCC and -56 bp A > T in the chTERT promoter, which formed the binding sites for the transcription factors NFAT5, TFAP2A and ZEB1, respectively. The results of RT-qPCR and Western blotting showed that the occurrence of these mutations significantly increased the expression level of chTERT. In conclusion, this study demonstrated that the high expression of chTERT in ALV-J tumors is positively correlated with the level of hypermethylation and mutation in its promoter, which provides a new perspective for further research on the molecular mechanism of chTERT in ALV-J tumorigenesis.
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Affiliation(s)
- Yong Xiang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Qinxi Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Qingbo Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Canxin Liang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Weisheng Cao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China. .,Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, South China Agricultural University, Guangzhou, 510642, China. .,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, South China Agricultural University, Guangzhou, 510642, China. .,Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, China. .,Key Laboratory of Veterinary Vaccine Innovation of the Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, China.
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Xiang Y, Liang C, Li Q, Chen Q, Zhou Y, Zheng X, Zhou D, Wang Z, Wang G, Cao W. Chicken telomerase reverse transcriptase promotes the tumorigenicity of avian leukosis virus subgroup J by regulating the Wnt/β-catenin signaling pathway. Vet Res 2022; 53:100. [PMID: 36461084 PMCID: PMC9717515 DOI: 10.1186/s13567-022-01120-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 10/24/2022] [Indexed: 12/03/2022] Open
Abstract
This research aimed to analyze the regulatory effect of chicken telomerase reverse transcriptase (chTERT) on the Wnt/β-catenin signaling pathway and its effect on the tumorigenicity of avian leukosis virus subgroup J (ALV-J) through in vivo experiments. The chTERT eukaryotic expression plasmid and its recombinant lentivirus particles were constructed for in vivo transfection of chTERT to analyze the effect of chTERT continuously overexpressed in chickens on the tumorigenicity of ALV-J. During 156 days of the artificial ALV-J tumor-inducing process, 7 solid tumors developed in 3 chickens in the chTERT-overexpression group (n = 26*2) and no tumors developed in the control group (n = 26*2). Another 18 tumors induced by ALV-J were confirmed and collected from breeding poultry farms. And we confirmed that chTERT was significantly highly expressed in ALV-J tumors. The ELISA data suggested that the protein levels of β-catenin and c-Myc in the chicken plasma of the chTERT-overexpressing group with ALV-J infected were consistently and significantly higher than those of the control group. Compared with that of the tumor-adjacent tissues, the activity of the Wnt/β-catenin signaling pathway and expression of the c-Myc was significantly increased in ALV-J tumors. And the percentage of apoptosis in ALV-J tumors significantly lower than that in tumor-adjacent tissues. Immunohistochemistry, Western blot and RT-qPCR suggested that the replication level of ALV-J in tumors was significantly higher than that in tumor-adjacent tissues. This study suggests that chTERT plays a critical role in the tumorigenicity of ALV-J by enhancing the Wnt/β-catenin signaling pathway, which will contribute to further elucidating the tumor-inducing mechanism of ALV-J.
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Affiliation(s)
- Yong Xiang
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642 China
| | - Canxin Liang
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642 China
| | - Qingbo Li
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642 China
| | - Qinxi Chen
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642 China
| | - Yang Zhou
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642 China
| | - Xiaoxue Zheng
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642 China
| | - Di Zhou
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642 China
| | - Zepeng Wang
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642 China
| | - Guyao Wang
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642 China
| | - Weisheng Cao
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642 China ,grid.20561.300000 0000 9546 5767Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, South China Agricultural University, Guangzhou, 510642 China ,grid.20561.300000 0000 9546 5767National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, South China Agricultural University, Guangzhou, 510642 China ,grid.20561.300000 0000 9546 5767Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, 510642 China ,grid.20561.300000 0000 9546 5767Key Laboratory of Veterinary Vaccine Innovation of the Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, 510642 China
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