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Blay JY, Duffaud F, George S, Maki RG, Penel N. Regorafenib for the Treatment of Sarcoma. Curr Treat Options Oncol 2022; 23:1477-1502. [PMID: 36178573 DOI: 10.1007/s11864-022-00990-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/22/2022] [Indexed: 01/30/2023]
Abstract
OPINION STATEMENT Sarcomas are a rare group of tumors with many subtypes, conventionally classified into soft-tissue sarcomas and bone sarcomas. Chemotherapeutic regimens form the mainstay of systemic therapy but are not well defined beyond the first-line setting and clinical outcomes are variable. Tyrosine kinase inhibitors (TKIs), with a broad inhibition profile which have been shown to target tumor angiogenesis, have an established role in the treatment of sarcomas without characteristic driver alterations. One such TKI, regorafenib, has been evaluated in sarcomas and clinical data are discussed in this review. An overview of regorafenib data from five phase 2 and one phase 1b clinical trials in over 10 sarcoma subtypes (both soft-tissue and bone) in adult and pediatric patients is reviewed. Regorafenib demonstrated clinical benefit in patients with non-adipocytic soft-tissue sarcomas, osteosarcoma and Ewing sarcoma who had progressed on prior therapy. Patients with otherwise limited treatment options may therefore benefit from regorafenib therapy.
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Affiliation(s)
- Jean-Yves Blay
- Department of Medicine, Léon Bérard Center, Lyon, France.
| | - Florence Duffaud
- Medical Oncology Unit, La Timone University Hospital, Marseille, France.,Aix Marseille University (AMU), Marseille, France
| | - Suzanne George
- Dana-Farber Cancer Institute, Harvard Medical School, Cambridge, MA, USA
| | - Robert G Maki
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Nicolas Penel
- Medical Oncology Department, Oscar Lambret Cancer Center and Lille University, Lille, France
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2
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Jain N, Das B, Mallick B. miR-197-5p increases Doxorubicin-mediated anticancer cytotoxicity of HT1080 fibrosarcoma cells by decreasing drug efflux. DNA Repair (Amst) 2021; 109:103259. [PMID: 34871862 DOI: 10.1016/j.dnarep.2021.103259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 09/27/2021] [Accepted: 11/23/2021] [Indexed: 01/23/2023]
Abstract
Doxorubicin (Dox) is one of the most used drugs in the treatment of Soft tissue sarcoma. However, acquired resistance linked with poor survival and numerous side effects are the major challenges. Meanwhile, miRNAs are reported to influence the chemotherapeutic responses. However, there is hardly any evidence on the involvement of tumor-suppressive miR-197 reported in our previous study in augmenting the sensitivity of fibrosarcoma cells to Dox. Therefore, in this study, we intend to decipher if miR-197-5p combined with Dox could increase the anticancer cytotoxicity. For this, we evaluated the antitumorigenic effects of Dox and miR-197-5p individually and in combination by performing a series of molecular assays. We noticed that the sub-lethal concentration of miR-197-5p markedly enhanced the sensitivity of HT1080 fibrosarcoma cells to Dox by promoting apoptosis and G2/M cell cycle arrest. We also observed miR-197-5p sensitizes HT1080 cells to Dox by increasing drug influx, possibly due to suppression of MDR genes (ABCC1, MVP). Moreover, we found that KIAA0101, a target of miR-197-5p is inhibited by Dox, which is further repressed when treated in combination with miRNA. We also observed a marked upregulation of p53, known to be negatively correlated with KIAA0101 in Dox and miR-197-5p combination treatment compared to Dox alone. Taken together, our study revealed that Dox chemotherapy in combination with miR-197-5p could overcome the problem of drug efflux and enhance its antitumor effects on fibrosarcoma.
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Affiliation(s)
- Neha Jain
- RNAi and Functional Genomics Lab., Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Basudeb Das
- RNAi and Functional Genomics Lab., Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Bibekanand Mallick
- RNAi and Functional Genomics Lab., Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India.
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3
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piR-39980 mediates doxorubicin resistance in fibrosarcoma by regulating drug accumulation and DNA repair. Commun Biol 2021; 4:1312. [PMID: 34799689 PMCID: PMC8605029 DOI: 10.1038/s42003-021-02844-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 11/04/2021] [Indexed: 12/12/2022] Open
Abstract
Resistance to doxorubicin (DOX) is an obstacle to successful sarcoma treatment and a cause of tumor relapse, with the underlying molecular mechanism still unknown. PIWI-interacting RNAs (piRNAs) have been shown to enhance patient outcomes in cancers. However, there are few or no reports on piRNAs affecting chemotherapy in cancers, including fibrosarcoma. The current study aims to investigate the relationship between piR-39980 and DOX resistance and the underlying mechanisms. We reveal that piR-39980 is less expressed in DOX-resistant HT1080 (HT1080/DOX) fibrosarcoma cells. Our results show that inhibition of piR-39980 in parental HT1080 cells induces DOX resistance by attenuating intracellular DOX accumulation, DOX-induced apoptosis, and anti-proliferative effects. Its overexpression in HT1080/DOX cells, on the other hand, increases DOX sensitivity by promoting intracellular DOX accumulation, DNA damage, and apoptosis. The dual-luciferase reporter assay indicates that piR-39980 negatively regulates RRM2 and CYP1A2 via direct binding to their 3'UTRs. Furthermore, overexpressing RRM2 induces DOX resistance of HT1080 cells by rescuing DOX-induced DNA damage by promoting DNA repair, whereas CYP1A2 confers resistance by decreasing intracellular DOX accumulation, which piR-39980 restores. This study reveals that piR-39980 could reduce fibrosarcoma resistance to DOX by modulating RRM2 and CYP1A2, implying that piRNA can be used in combination with DOX.
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Irani S, Paknejad M, Soleimani M, Soleimani A. Evaluation of miR-34a Effect on CCND1 mRNA Level and Sensitization of Breast Cancer Cell Lines to Paclitaxel. IRANIAN BIOMEDICAL JOURNAL 2020; 24:361-9. [PMID: 32660221 PMCID: PMC7601542 DOI: 10.29252/ibj.24.6.356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 01/18/2020] [Indexed: 01/08/2023]
Abstract
Background A growing body of literature has revealed the effective role of miR-34a, as a tumor suppressor and regulator of expression of multiple targets in tumorigenesis and cancer progression. This study aimed at evaluating the potential effects of miR-34a alone or in combination with paclitaxel on breast cancer cells. Methods After miR-34a transduction by lentiviral vectors in two MCF-7 and MDA-MB-231 cell lines of breast cancer, effects of the elevated expression of miR-34a in the cell viability and the cell proliferation were determined using MTT assay in treated and untreated cells with paclitaxel. The mRNA level of the CCND1 (Cyclin D1)gene was then measured in the two cell lines using the qRT-PCR assay. Finally, the influence of miR-34a and paclitaxel on apoptosis and cell cycle progression were examined by flow cytometry. Results The CCND1 mRNA expression levels were significantly down-regulated by overexpressed lentiviral miR-34a in MCF-7 and MDA-MB-231 cells. Combined treatment by miR-34a and paclitaxel reduced the cell viability and proliferation compared to single-drug treatment. In addition, the cell cycle arrest appeared at two phases by the combination of miR-34a and paclitaxel in MDA-MB-231 cells. Conclusion Our results suggest that miR34a, in combination with paclitaxel, has a potential for decreasing the cell viability and proliferation. Moreover, it can reduce the expression of CCND1 mRNA independent of the paclitaxel effect.
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Affiliation(s)
- Shiva Irani
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mahsa Paknejad
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Masoud Soleimani
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Azam Soleimani
- Legal Medicine Research Center, Legal Medicine Organization, Tehran, Iran
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Xu YJ, Liu PP, Ng SC, Teng ZQ, Liu CM. Regulatory networks between Polycomb complexes and non-coding RNAs in the central nervous system. J Mol Cell Biol 2020; 12:327-336. [PMID: 31291646 PMCID: PMC7288736 DOI: 10.1093/jmcb/mjz058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 02/26/2019] [Accepted: 06/11/2019] [Indexed: 01/29/2023] Open
Abstract
High-throughput sequencing has facilitated the identification of many types of non-coding RNAs (ncRNAs) involved in diverse cellular processes. NcRNAs as epigenetic mediators play key roles in neuronal development, maintenance, and dysfunction by controlling gene expression at multiple levels. NcRNAs may not only target specific DNA or RNA for gene silence but may also directly interact with chromatin-modifying proteins like Polycomb group (PcG) proteins to drive orchestrated transcriptional programs. Recent significant progress has been made in characterizing ncRNAs and PcG proteins involved in transcriptional, post-transcriptional, and epigenetic regulation. More importantly, dysregulation of ncRNAs, PcG proteins, and interplay among them is closely associated with the pathogenesis of central nervous system (CNS) disorders. In this review, we focus on the interplay between ncRNAs and PcG proteins in the CNS and highlight the functional roles of the partnership during neural development and diseases.
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Affiliation(s)
- Ya-Jie Xu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Pei-Pei Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Shyh-Chang Ng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhao-Qian Teng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Chang-Mei Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
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Zhou Q, Hu T, Xu Y. Anticancer potential of TUG1 knockdown in cisplatin-resistant osteosarcoma through inhibition of MET/Akt signalling. J Drug Target 2019; 28:204-211. [PMID: 31305159 DOI: 10.1080/1061186x.2019.1644651] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Development of cisplatin (DDP)-resistance is a major challenge that largely limits the efficacy of chemotherapy for osteosarcoma. LncRNA Taurine up-regulated gene 1 (TUG1) is a recently identified oncogenic lncRNA that has been involved in chemo-resistance of various cancers. In this study, over-expression of TUG1 was found in two osteosarcoma cell lines resistant to DDP (Saos-2/DDP, MG-63/DDP). Knockdown of TUG1 inhibited the DDP-resistance and promoted the cytotoxicity and apoptosis induced by DDP in Saos-2/DDP and MG-63/DDP cells. TUG1 knockdown also markedly inhibited the expression level of MET and p-Akt. In conclusion, knockdown of TUG1 suppressed cell growth and increased apoptotic rate under DDP treatment possibly via regulating MET/Akt signalling pathway.
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Affiliation(s)
- Qiang Zhou
- Department of Traditional Chinese Medicine, Ningbo Mingzhou Hospital, Ningbo, People's Republic of China
| | - Tongzhou Hu
- Department of Orthopedics, Ningbo Fourth Hospital, Ningbo, People's Republic of China
| | - Yuan Xu
- Department of Orthopedics, Zhejiang Hospital, Hangzhou, People's Republic of China
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Yan J, Chen D, Chen X, Sun X, Dong Q, Hu C, Zhou F, Chen W. Downregulation of lncRNA CCDC26 contributes to imatinib resistance in human gastrointestinal stromal tumors through IGF-1R upregulation. ACTA ACUST UNITED AC 2019; 52:e8399. [PMID: 31166382 PMCID: PMC6556970 DOI: 10.1590/1414-431x20198399] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 02/21/2019] [Indexed: 12/11/2022]
Abstract
Imatinib is the first line of therapy for patients with metastatic or gastrointestinal stromal tumors (GIST). However, drug resistance limits the long-term effect of imatinib. Long non-coding RNAs (lncRNAs) are emerging as key players in regulating drug resistance in cancer. In this study, we investigated the association between lncRNA CCDC26 and IGF-1R in GIST and their involvement in drug resistance. Considering the key role of lncRNAs in drug resistance in cancer, we hypothesized that IGF-1R is regulated by lncRNAs. The expression of a series of reported drug resistance-related lncRNAs, including CCDC26, ARF, H19, NBR2, NEAT1, and HOTAIR, in GIST cells treated with imatinib H19 was examined at various time-points by qRT-PCR. Based on our results and published literature, CCDC26, a strongly down-regulated lncRNA following imatinib treatment, was chosen as our research target. GIST cells with high expression of CCDC26 were sensitive to imatinib treatment while knockdown of CCDC26 significantly increased the resistance to imatinib. Furthermore, we found that CCDC26 interacted with c-KIT by RNA pull down, and that CCDC26 knockdown up-regulated the expression of IGF-1R. Moreover, IGF-1R inhibition reversed CCDC26 knockdown-mediated imatinib resistance in GIST. These results indicated that treatments targeting CCDC26-IGF-1R axis would be useful in increasing sensitivity to imatinib in GIST.
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Affiliation(s)
- Jingyi Yan
- Department of Gastroenterology and General Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Didi Chen
- Department of Radiotherapy and Medical Oncology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Xiaolei Chen
- Department of Gastroenterology and General Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Xuecheng Sun
- Department of Gastroenterology and Hepatology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Qiantong Dong
- Department of Gastroenterology and General Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Changyuan Hu
- Department of Gastroenterology and General Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Feng Zhou
- Department of Gastroenterology and General Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Wei Chen
- Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang Province, China
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Polydatin inhibits proliferation and promotes apoptosis of doxorubicin-resistant osteosarcoma through LncRNA TUG1 mediated suppression of Akt signaling. Toxicol Appl Pharmacol 2019; 371:55-62. [DOI: 10.1016/j.taap.2019.04.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/31/2019] [Accepted: 04/05/2019] [Indexed: 02/01/2023]
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9
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Liu L, Pang X, Shang W, Xie H, Feng Y, Feng G. Long non-coding RNA GAS5 sensitizes renal cell carcinoma to sorafenib via miR-21/SOX5 pathway. Cell Cycle 2019; 18:257-263. [PMID: 29895198 PMCID: PMC6380417 DOI: 10.1080/15384101.2018.1475826] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Although the use of sorafenib appears to increase the survival rate of renal cell carcinoma (RCC) patients, there is also a proportion of patients who exhibit a poor primary response to sorafenib treatment. Therefore, it is critical to elucidate the mechanisms underlying sorafenib resistance and find representative biomarkers for sorafenib treatment in RCC patients. Herein, we identified that a long noncoding RNA GAS5 was downregulated in sorafenib nonresponsive RCCs. GAS5 overexpression conferred sorafenib sensitive to nonresponsive RCC cells, whereas knockdown of GAS5 promoted responsive RCC cells resistant to sorafenib treatment in vitro and in vivo. Mechanistically, GAS5 functioned as competing endogenous RNA to repress miR-21, which controlled its down-stream target SOX5. We proposed that GAS5 was responsible for sorafenib resistance in RCC cells and GAS5 exerted its function through the miR-21/ SOX5 axis. Our findings suggested that GAS5 downregulation may be a new marker of poor response to sorafenib and GAS5 could be a potential therapeutic target for sorafenib treatment in RCC.
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Affiliation(s)
- Lei Liu
- Department of kidney transplantation, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, P. R. China
| | - Xinlu Pang
- Department of kidney transplantation, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, P. R. China
| | - Wenjin Shang
- Department of kidney transplantation, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, P. R. China
| | - Hongchang Xie
- Department of kidney transplantation, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, P. R. China
| | - Yonghua Feng
- Department of kidney transplantation, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, P. R. China
| | - Guiwen Feng
- Department of kidney transplantation, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, P. R. China,CONTACT Guiwen Feng
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Wang X, Qu H, Dong Y, Wang G, Zhen Y, Zhang L. Targeting signal-transducer-and-activator-of-transcription 3 sensitizes human cutaneous melanoma cells to BRAF inhibitor. Cancer Biomark 2018; 23:67-77. [PMID: 30010109 DOI: 10.3233/cbm-181365] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Melanoma treatment with the BRAF V600E inhibitor vemurafenib provides therapeutic benefits but the common emergence of drug resistance remains a challenge. To define molecular mechanisms of vemurafenib resistance, we generated A375-R, WM35-R cell lines resistant to vemurafenib and show that the phosphorylated (p)-STAT3 was upregulated in these cells in vitro and in vivo. In particular, activation of the Signal-transducer-and-activator-of-transcription 3 (STAT3) pathway was associated with vemurafenib resistance. Inhibition of this pathway with STAT3-specific siRNA (shRNA) sensitized A375-R, WM35-R cells to vemurafenib and induced apoptosis in vitro and in vivo. Moreover, targeting STAT3 induced expression of miR-579-3p and elicited resistance to vemurafenib. However, targeting microRNA (miR)-579-3p with anti-miR-579-3p reversed the resistance to vemurafenib. Together, these results indicated that STAT3-mediated downexpression of miR-579-3p caused resistance to vemurafenib. Our findings suggest novel approaches to overcome resistance to vemurafenib by combining vemurafenib with STAT3 sliencing or miR-579-3p overexpression.
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Affiliation(s)
- Xiaohui Wang
- Department of Orthopedics, The Central Hospital of Linyi, Linyi, Shandong, China.,Department of Orthopedics, The Central Hospital of Linyi, Linyi, Shandong, China
| | - Huajun Qu
- Department of Cosmetic Plastic Surgery, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China.,Department of Orthopedics, The Central Hospital of Linyi, Linyi, Shandong, China
| | - Yinghe Dong
- Department of Cosmetic Plastic Surgery, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China
| | - Guozhi Wang
- Department of Cosmetic Plastic Surgery, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China
| | - Yuchen Zhen
- Department of Cosmetic Plastic Surgery, The Second Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Linxia Zhang
- Department of Medcine, The People's Hospital of Weifang, Weifang, Shandong, China
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11
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Molecular Landscape in Alveolar Soft Part Sarcoma: Implications for Molecular Targeted Therapy. Biomed Pharmacother 2018; 103:889-896. [DOI: 10.1016/j.biopha.2018.04.117] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 04/09/2018] [Accepted: 04/16/2018] [Indexed: 12/20/2022] Open
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12
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Su Y, Yu Y, He D, Zhang J, Wang Z, Sun P, Chen Z. Targeting STAT3 restores BRAF inhibitor sensitivity through miR-759-3p in human cutaneous melanoma cells. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:2550-2560. [PMID: 31938368 PMCID: PMC6958307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 03/28/2018] [Indexed: 06/10/2023]
Abstract
Melanoma treatment with the BRAF V600E inhibitor vemurafenib provides therapeutic benefits, but the common emergence of drug resistance remains a challenge. To define molecular mechanisms of vemurafenib resistance, we generated A375-R, WM35-R cell lines resistant to vemurafenib and found that the p-STAT3 was upregulated in these cells in vitro and in vivo. In particular, activation of the STAT3 pathway was associated with vemurafenib resistance. Inhibition of this pathway with STAT3-specific siRNA (shRNA) sensitized A375-R, WM35-R cells to vemurafenib and induced apoptosis in vitro and in vivo. Moreover, targeting STAT3 induced expression of miR-579-3p and elicited resistance to vemurafenib. However, targeting miR-579-3p with anti- miR-579-3p reversed the resistance to vemurafenib. Together, these results indicate that STAT3-mediated downexpression of miR-579-3p caused resistance to vemurafenib. Our findings suggest novel approaches to overcome resistance to vemurafenib by combining vemurafenib with STAT3 silencing or miR-579-3p overexpression.
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Affiliation(s)
- Yipeng Su
- Department of Cosmetic Plastic Surgery, The Affiliated Hospital of Qingdao UniversityQingdao, Shandong, China
| | - Ying Yu
- Department of Thyroid Surgery, The Affiliated Hospital of Qingdao UniversityQingdao, Shandong, China
| | - Dongying He
- Department of Emergency Medicine, The Affiliated Hospital of Qingdao UniversityQingdao, Shandong, China
| | - Jinna Zhang
- Department of Thyroid Surgery, The Affiliated Hospital of Qingdao UniversityQingdao, Shandong, China
| | - Zhiguo Wang
- Department of Cosmetic Plastic Surgery, The Affiliated Hospital of Qingdao UniversityQingdao, Shandong, China
| | - Pengfei Sun
- Department of Cosmetic Plastic Surgery, The Affiliated Hospital of Qingdao UniversityQingdao, Shandong, China
| | - Zhenyu Chen
- Department of Cosmetic Plastic Surgery, The Affiliated Hospital of Qingdao UniversityQingdao, Shandong, China
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Han Z, Shi L. Long non-coding RNA LUCAT1 modulates methotrexate resistance in osteosarcoma via miR-200c/ABCB1 axis. Biochem Biophys Res Commun 2018; 495:947-953. [DOI: 10.1016/j.bbrc.2017.11.121] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 11/19/2017] [Indexed: 02/07/2023]
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