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Yun WJ, Li J, Yin NC, Zhang CY, Cui ZG, Zhang L, Zheng HC. The facilitating effects of KRT80 on chemoresistance, lipogenesis, and invasion of esophageal cancer. Cancer Biol Ther 2024; 25:2302162. [PMID: 38241178 PMCID: PMC10802210 DOI: 10.1080/15384047.2024.2302162] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 01/02/2024] [Indexed: 01/21/2024] Open
Abstract
Keratin 80 (KRT80) is a filament protein that makes up one of the major structural fibers of epithelial cells, and involved in cell differentiation and epithelial barrier integrity. Here, KRT80 mRNA expression was found to be higher in esophageal cancer than normal epithelium by RT-PCR and bioinformatics analysis (p < .05), opposite to KRT80 methylation (p < .05). There was a negative relationship between promoter methylation and expression level of KRT80 gene in esophageal cancer (p < .05). KRT80 mRNA expression was positively correlated with the differentiation, infiltration of immune cells, and poor prognosis of esophageal cancer (p < .05). KRT80 mRNA expression was positively linked to no infiltration of immune cells, the short survival time of esophageal cancers (p < .05). The differential genes of KRT80 mRNA were involved in fat digestion and metabolism, peptidase inhibitor, and intermediate filament, desosome, keratinocyte differentiation, epidermis development, keratinization, ECM regulator, complement cascade, metabolism of vitamins and co-factor (p < .05). KRT-80-related genes were classified into endocytosis, cell adhesion molecule binding, cadherin binding, cell-cell junction, cell leading edge, epidermal cell differentiation and development, T cell differentiation and receptor complex, plasma membrane receptor complex, external side of plasma membrane, metabolism of amino acids and catabolism of small molecules, and so forth (p < .05). KRT80 knockdown suppressed anti-apoptosis, anti-pyroptosis, migration, invasion, chemoresistance, and lipogenesis in esophageal cancer cells (p < .05), while ACC1 and ACLY overexpression reversed the inhibitory effects of KRT80 on lipogenesis and chemoresistance. These findings indicated that up-regulated expression of KRT80 might be involved in esophageal carcinogenesis and subsequent progression, aggravate aggressive phenotypes, and induced chemoresistance by lipid droplet assembly and ACC1- and ACLY-mediated lipogenesis.
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Affiliation(s)
- Wen-Jing Yun
- Department of Oncology, The Affiliated Hospital of Chengde Medical University, Chengde, China
| | - Jun Li
- Department of Thoracic Surgery, Shandong Provincial Hospital, Jinan, China
| | - Nan-Chang Yin
- Department of Thoracic Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Cong-Yu Zhang
- Cancer Center, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Zheng-Guo Cui
- Department of Environmental Health, University of Fukui School of Medical Sciences, Fukui, Japan
| | - Li Zhang
- Department of Oncology, The Affiliated Hospital of Chengde Medical University, Chengde, China
| | - Hua-Chuan Zheng
- Department of Oncology, The Affiliated Hospital of Chengde Medical University, Chengde, China
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Xiao N, Pei Z, Lu W, Fang R, Jin Y, Zhou G, Meng X, Ng SP, Xing L, Liao Z, Sijtsema NM, Yang P. Editorial: Application of radiomics in understanding tumor biological behaviors and treatment response. Front Oncol 2023; 13:1257447. [PMID: 37664068 PMCID: PMC10472271 DOI: 10.3389/fonc.2023.1257447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 07/28/2023] [Indexed: 09/05/2023] Open
Affiliation(s)
- Ningping Xiao
- Hunan Cancer Hospital, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Zhengda Pei
- Hunan Cancer Hospital, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Graduate Collaborative Training Base of Hunan Cancer Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Wenhui Lu
- Graduate Collaborative Training Base of Hunan Cancer Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Rongyao Fang
- Graduate Collaborative Training Base of Hunan Cancer Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yi Jin
- Hunan Cancer Hospital, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Guanzhi Zhou
- Department of Radiotherapy, University Medical Center Groningen, Groningen, Netherlands
| | - Xue Meng
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, Shandong, China
| | - Sweet Ping Ng
- Department of Radiation Oncology, Olivia Newton-John Cancer Centre, Austin Health, Melbourne, VIC, Australia
| | - Lei Xing
- School of Medicine, Stanford University, Stanford, CA, United States
| | - Zhongxing Liao
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Nanna Maria Sijtsema
- Department of Radiotherapy, University Medical Center Groningen, Groningen, Netherlands
| | - Pei Yang
- Hunan Cancer Hospital, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
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Jiao Q, Wang L, Zhang Z, Chen X, Lu H, Liu Y. The Biological Behaviors of Neural Stem Cell Affected by Microenvironment from Host Organotypic Brain Slices under Different Conditions. Int J Mol Sci 2023; 24. [PMID: 36835592 DOI: 10.3390/ijms24044182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/14/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
Therapeutic strategies based on neural stem cells (NSCs) transplantation bring new hope for neural degenerative disorders, while the biological behaviors of NSCs after being grafted that were affected by the host tissue are still largely unknown. In this study, we engrafted NSCs that were isolated from a rat embryonic cerebral cortex onto organotypic brain slices to examine the interaction between grafts and the host tissue both in normal and pathological conditions, including oxygen-glucose deprivation (OGD) and traumatic injury. Our data showed that the survival and differentiation of NSCs were strongly influenced by the microenvironment of the host tissue. Enhanced neuronal differentiation was observed in normal conditions, while significantly more glial differentiation was observed in injured brain slices. The process growth of grafted NSCs was guided by the cytoarchitecture of host brain slices and showed the distinct difference between the cerebral cortex, corpus callosum and striatum. These findings provided a powerful resource for unraveling how the host environment determines the fate of grafted NSCs, and raise the prospect of NSCs transplantation therapy for neurological diseases.
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Cui Y, Fan S, Pan D, Chao Q. [Atorvastatin inhibits malignant behaviors and induces apoptosis in human glioma cells by up-regulating miR-146a and inhibiting the PI3K/Akt signaling pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:899-904. [PMID: 35790441 DOI: 10.12122/j.issn.1673-4254.2022.06.14] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To explore the effect of atorvastatin (AVT) on biological behaviors and the miR-146a/PI3K/Akt signaling pathway in human glioma cells. METHODS Human glioma U251 cells were treated with 8.0 μmol/L AVT or transfected with a miR-146a inhibitor or a negative control fragment (miR-146a NC) prior to AVT treatment. RT-PCR was used to detect miR-146a expression in the cells, and the changes in cell proliferation rate, apoptosis, cell invasion and migration were detected using MTT assay, flow cytometry, and Transwell assay. Western blotting was performed to detect the changes in cellular expressions of proteins in the PI3K/Akt signaling pathway. RESULTS AVT treatment for 48 h resulted in significantly increased miR-146a expression and cell apoptosis (P < 0.01) and obviously lowered the cell proliferation rate, invasion index, migration index, and expressions of p-PI3K and p-Akt protein in U251 cells (P < 0.01). Compared with AVT treatment alone, transfection with miR-146a inhibitor prior to AVT treatment significantly reduced miR-146a expression and cell apoptosis (P < 0.01), increased the cell proliferation rate, promoted cell invasion and migration, and enhanced the expressions of p-PI3K and p-Akt proteins in the cells (P < 0.01); these effects were not observed following transfection with miR-146a NC group (P>0.05). CONCLUSION AVT can inhibit the proliferation, invasion and migration and promote apoptosis of human glioma cells possibly by up-regulating miR-146a expression and inhibiting the PI3K/Akt signaling pathway.
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Affiliation(s)
- Y Cui
- Department of Neurosurgery, Second Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China
| | - S Fan
- Department of Neurosurgery, Second Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China
| | - D Pan
- Department of Neurosurgery, Second Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China
| | - Q Chao
- Department of Neurosurgery, Second Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China
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霍 叶, 王 月, 安 娜, 杜 雪. [TIM-3 gene is highly expressed in ephithelial ovarian cancer to promote proliferation and migration of ovarian cancer cells]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:190-200. [PMID: 35365442 PMCID: PMC8983363 DOI: 10.12122/j.issn.1673-4254.2022.02.04] [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] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To analyze the expression of immunoglobulin mucin molecule 3 (TIM-3) in epithelial ovarian cancer (EOC) and the effects of TIM-3 knockdown and overexpression on proliferation and migration of ovarian cancer cells. METHODS We analyzed TIM-3 expression in EOC and normal ovarian tissues using GEPIA database. We also detected TIM-3 expression levels in 82 surgical specimens of EOC and 18 specimens of normal ovarian tissues using immunohistochemistry, and analyzed the correlation of TIM-3 expression with clinicopathological parameters and survival outcomes of the patients. The expression of TIM-3 and Wnt1 mRNA in the tissues were detected using qRT-PCR. We constructed SKOV3 cell models of TIM-3 knockdown and overexpression and examined the changes in proliferation, apoptosis, migration and invasion of the cells using MTT assay, Annexin V-FITC/PI staining, scratch test and Transwell assay. The activity of Wnt/β-catenin pathway in the transfected was detected using dual luciferase reporter assay, and the mRNA levels of TCF-7, TCCFL-2 and CD44 were detected using qPCR. The protein expressions of MMP-9, CD44, Wnt1, β-catenin and E-cad in the transfected cells were detected with Western blotting. RESULTS The positive expression rate of TIM-3 was significantly higher in EOC tissues than in normal ovarian tissues (P < 0.05). The expression of TIM-3 was significantly correlated with FIGO stage, histological differentiation and lymph node metastasis, and was positively correlated with Wnt1 level (P < 0.05). In SKOV3 cells, TIM-3 knockdown significantly lowered the activity of Wnt/ β-catenin pathway, inhibited cell proliferation, migration and invasion, and promoted cell apoptosis. TIM-3 knockdown significantly down-regulated the mRNA levels of TCF-7, TCFL-2 and CD44 and the protein levels of MMP-9, CD44, Wnt1 and β-catenin, and significantly up-regulated the expression level of E-cad (P < 0.05). Overexpression of TIM-3 caused opposite effects in SKOV3 cells. CONCLUSION TIM-3 is highly expressed in EOC tissue to promote malignant behaviors of the tumor cells possibly by activating the Wnt/β-catenin signal pathway.
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Affiliation(s)
- 叶琳 霍
- 天津医科大学总医院妇科,天津 300000Department of Gynecology, General Hospital of Tianjin Medical University, Tianjin 300000, China
- 河北省保定市第一医院妇科,河北 保定 071000Department of Gynecology, Baoding First Hospital, Baoding 071000, China
| | - 月 王
- 河北大学附属医院肿瘤内科,河北 保定 071000Department of Oncology, Affiliated Hospital of Hebei University, Baoding 071000, China
| | - 娜 安
- 河北大学附属医院肿瘤内科,河北 保定 071000Department of Oncology, Affiliated Hospital of Hebei University, Baoding 071000, China
| | - 雪 杜
- 天津医科大学总医院妇科,天津 300000Department of Gynecology, General Hospital of Tianjin Medical University, Tianjin 300000, China
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Hou M, Bai B, Tian B, Ci Z, Liu Y, Zhou G, Cao Y. Cartilage Regeneration Characteristics of Human and Goat Auricular Chondrocytes. Front Bioeng Biotechnol 2022; 9:766363. [PMID: 34993186 PMCID: PMC8724709 DOI: 10.3389/fbioe.2021.766363] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 09/13/2021] [Accepted: 12/01/2021] [Indexed: 11/13/2022] Open
Abstract
Although cartilage regeneration technology has achieved clinical breakthroughs, whether auricular chondrocytes (AUCs) represent optimal seed cells to achieve stable cartilage regeneration is not clear. In this study, we systematically explore biological behaviors of human- and goat-derived AUCs during in vitro expansion as well as cartilage regeneration in vitro and in vivo. To eliminate material interference, a cell sheet model was used to evaluate the feasibility of dedifferentiated AUCs to re-differentiate and regenerate cartilage in vitro and in vivo. We found that the dedifferentiated AUCs could re-differentiate and regenerate cartilage sheets under the chondrogenic medium system, and the generated chondrocyte sheets gradually matured with increased in vitro culture time (2, 4, and 8 weeks). After the implantation of cartilage sheets with different in vitro culture times in nude mice, optimal neocartilage was formed in the group with 2 weeks in vitro cultivation. After in vivo implantation, ossification only occurred in the group with goat-regenerated cartilage sheet of 8 weeks in vitro cultivation. These results, which were confirmed in human and goat AUCs, suggest that AUCs are ideal seed cells for the clinical translation of cartilage regeneration under the appropriate culture system and culture condition.
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Affiliation(s)
- Mengjie Hou
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Tissue Engineering Center of China, Shanghai, China
| | - Baoshuai Bai
- National Tissue Engineering Center of China, Shanghai, China.,Research Institute of Plastic Surgery, Wei Fang Medical College, Weifang, China
| | - Baoxing Tian
- Department of Breast Surgery, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zheng Ci
- National Tissue Engineering Center of China, Shanghai, China.,Research Institute of Plastic Surgery, Wei Fang Medical College, Weifang, China
| | - Yu Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Tissue Engineering Center of China, Shanghai, China.,Research Institute of Plastic Surgery, Wei Fang Medical College, Weifang, China
| | - Guangdong Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Tissue Engineering Center of China, Shanghai, China.,Research Institute of Plastic Surgery, Wei Fang Medical College, Weifang, China
| | - Yilin Cao
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Tissue Engineering Center of China, Shanghai, China
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Li Q, Liang S, Lai Q, Shen L, Zhang Y, Guo R. Heme oxygenase-1 alleviates advanced glycation end product-induced oxidative stress, inflammatory response and biological behavioral disorders in rat dermal fibroblasts. Exp Ther Med 2021; 22:1212. [PMID: 34584557 PMCID: PMC8422385 DOI: 10.3892/etm.2021.10646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 09/09/2020] [Accepted: 06/01/2021] [Indexed: 01/13/2023] Open
Abstract
Advanced glycation end products (AGEs) are involved in delaying the wound healing of diabetic foot ulcers. The present study investigated the effects of heme oxygenase-1 (HO-1) on oxidative stress, inflammatory insult and biological behaviors in rat dermal fibroblasts in the presence of AGEs. Rat dermal fibroblasts were cultured in the presence of AGEs (100 µg/ml), glucose (1.0 g/l or 4.5 g/l), hemin (5 µM) and chromium mesoporphyrin (CrMP; 20 µM). A bilirubin kit, reverse transcription-quantitative PCR and western blotting were used to measure the activity and mRNA and protein levels of HO-1, respectively. ELISA kits were used to measure the levels of reactive oxygen species (ROS), malondialdehyde (MDA), 8-hydroxydeoxyguanosine (8-OHdG), TNF-α, IL-6, IL-1β and the viability and collagen (hydroxyproline) secretion of fibroblasts. Cell proliferation and apoptosis were measured via flow cytometry. The scratch test was performed to evaluate cell migration. The results revealed that AGEs resulted in oxidative stress, inflammatory response and biological behavioral disorders in fibroblasts, while worsened functional disorders were caused by the combination of AGEs and high-glucose treatment. Hemin treatment induced sustained high HO-1 expression, decreased the levels of ROS, MDA, 8-OHdG, TNF-α, IL-6, IL-1β and cell apoptosis, and increased cellular collagen synthesis, viability, proliferation and migration, whereas CrMP abolished the effects of hemin. It was observed that high HO-1 expression reversed the AGE-induced oxidative stress, inflammatory response and biological behavioral disorders in fibroblasts, but fibroblast function did not return to that observed under normal glucose levels. In conclusion, it was demonstrated that hemin treatment induced high HO-1 expression. HO-1 reduced the AGE-induced functional disorders in fibroblasts and may accelerate the healing of diabetic wounds by improving fibroblast biological behaviors and reducing the oxidative stress and inflammatory response.
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Affiliation(s)
- Qingling Li
- Department of VIP Medical Service Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Shangyan Liang
- Department of VIP Medical Service Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Qianwei Lai
- Department of VIP Medical Service Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Lishan Shen
- Department of Radiology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Yong Zhang
- Department of Nuclear Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Ruomi Guo
- Department of Radiology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510630, P.R. China
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Hu X, Wu J, Xiong H, Zeng L, Wang Z, Wang C, Huang D, Zhang T, Peng Y, Chen W, Xia K, Su T. Type 2 diabetes mellitus promotes the proliferation, metastasis, and suppresses the apoptosis in oral squamous cell carcinoma. J Oral Pathol Med 2021; 51:483-492. [PMID: 34551155 DOI: 10.1111/jop.13244] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 08/10/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND Our previous study revealed that patients with oral squamous cell carcinoma and concomitant type 2 diabetes mellitus presented a lower 5-year survival rate. Hyperglycemia has been increasingly recognized as a risk factor for more advanced disease and poorer prognosis in patients with oral squamous cell carcinoma. However, its role remains unclear. METHODS The expressions of BRIP1, Ki67, E-cadherin, and cleaved caspase-3 were detected by immunohistochemistry in oral squamous cell carcinoma tissues with or without type 2 diabetes mellitus. Cell counting kit-8 assay and wound healing assay were used to determine the proliferative and migratory ability of oral squamous cell carcinoma cells cultured with or without high glucose in vitro. Flow cytometry was applied to distinguish the role of high glucose on the cell cycle and apoptosis rates. RESULTS The expression level of Ki67 was elevated while BRIP1, E-cadherin, and cleaved caspase-3 were downregulated in patients with oral squamous cell carcinoma coexisting with diabetes. The cell proliferation and migration in oral squamous cell carcinoma cell lines were significantly enhanced by high glucose. Flow cytometric analysis suggested that high glucose predisposed cancer cells to stay at S/G2 phase and to exhibit lower apoptosis rates. CONCLUSION Our results implicated that type 2 diabetes mellitus may play a crucial role in the development and progression of oral squamous cell carcinoma through hyperglycemia, affecting cancer cell proliferation, migration, and apoptosis. This finding might provide a new direction for the prevention and treatment of oral squamous cell carcinoma.
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Affiliation(s)
- Xin Hu
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya hospital of Central South University, Changsha, Hunan, China.,Research Center of Oral and Maxillofacial Tumor, Xiangya hospital of Central South University, Changsha, Hunan, China.,Institute of Oral Cancer and Precancerous Lesions, Central South University, Changsha, Hunan, China
| | - Jin Wu
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya hospital of Central South University, Changsha, Hunan, China.,Research Center of Oral and Maxillofacial Tumor, Xiangya hospital of Central South University, Changsha, Hunan, China.,Institute of Oral Cancer and Precancerous Lesions, Central South University, Changsha, Hunan, China
| | - Haofeng Xiong
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya hospital of Central South University, Changsha, Hunan, China.,Research Center of Oral and Maxillofacial Tumor, Xiangya hospital of Central South University, Changsha, Hunan, China.,Institute of Oral Cancer and Precancerous Lesions, Central South University, Changsha, Hunan, China.,Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Liujun Zeng
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya hospital of Central South University, Changsha, Hunan, China.,Research Center of Oral and Maxillofacial Tumor, Xiangya hospital of Central South University, Changsha, Hunan, China.,Institute of Oral Cancer and Precancerous Lesions, Central South University, Changsha, Hunan, China
| | - Zijia Wang
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya hospital of Central South University, Changsha, Hunan, China.,Research Center of Oral and Maxillofacial Tumor, Xiangya hospital of Central South University, Changsha, Hunan, China.,Institute of Oral Cancer and Precancerous Lesions, Central South University, Changsha, Hunan, China
| | - Can Wang
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya hospital of Central South University, Changsha, Hunan, China.,Research Center of Oral and Maxillofacial Tumor, Xiangya hospital of Central South University, Changsha, Hunan, China.,Institute of Oral Cancer and Precancerous Lesions, Central South University, Changsha, Hunan, China
| | - Danni Huang
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya hospital of Central South University, Changsha, Hunan, China.,Research Center of Oral and Maxillofacial Tumor, Xiangya hospital of Central South University, Changsha, Hunan, China.,Institute of Oral Cancer and Precancerous Lesions, Central South University, Changsha, Hunan, China
| | - Tianyi Zhang
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya hospital of Central South University, Changsha, Hunan, China.,Research Center of Oral and Maxillofacial Tumor, Xiangya hospital of Central South University, Changsha, Hunan, China.,Institute of Oral Cancer and Precancerous Lesions, Central South University, Changsha, Hunan, China
| | - Ying Peng
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya hospital of Central South University, Changsha, Hunan, China.,Research Center of Oral and Maxillofacial Tumor, Xiangya hospital of Central South University, Changsha, Hunan, China.,Institute of Oral Cancer and Precancerous Lesions, Central South University, Changsha, Hunan, China
| | - Weijun Chen
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya hospital of Central South University, Changsha, Hunan, China.,Research Center of Oral and Maxillofacial Tumor, Xiangya hospital of Central South University, Changsha, Hunan, China.,Institute of Oral Cancer and Precancerous Lesions, Central South University, Changsha, Hunan, China
| | - Kun Xia
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Tong Su
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya hospital of Central South University, Changsha, Hunan, China.,Research Center of Oral and Maxillofacial Tumor, Xiangya hospital of Central South University, Changsha, Hunan, China.,Institute of Oral Cancer and Precancerous Lesions, Central South University, Changsha, Hunan, China
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Huang H, Wei Y, Wang J, Ran F, Chen Q. [Effect of fatty acid synthase gene silencing on lipid metabolism and biological behaviors of human hepatoblastoma HepG2 cells]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:747-753. [PMID: 34134963 DOI: 10.12122/j.issn.1673-4254.2021.05.16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
OBJECTIVE To investigate the effect of fatty acid synthase (FASN) gene silencing on lipid metabolism and biological behaviors of human hepatoblastoma HepG2 cells. OBJECTIVE Small interfering RNA (siRNA) targeting FASN gene or a negative control siRNA sequence (NC-siRNA) was transfected into HepG2 cells, and the gene silencing efficiency was evaluated with qRT-PCR and Western blotting. Triglyceride level in the cells was detected using enzyme-linked immunosorbent assay, and Oil red O staining was performed to examine intracellular lipid droplets. The proliferation ability of the transfected cells was tested by CCK-8 assay, and cell apoptosis was evaluated using annexin V-FITC/PI apoptosis detection kit. Wound healing assay and Transwell assay were performed to assess the migration ability of the transfected cells. OBJECTIVE Transfection of the cells with FASN-siRNA, but not NC-siRNA, significantly lowered FASN expression at both the mRNA and protein level (P < 0.001) and decreased the number of lipid droplets (P < 0.001) and triglyceride level (P < 0.01) in the cells. FASN gene silencing significantly inhibited proliferation, increased apoptosis rate and suppressed migration of HepG2 cells (P < 0.001). OBJECTIVE FASN gene silencing inhibits proliferation and migration and promotes apoptosis of HepG2 cells possibly by suppressing lipid synthesis in the cells.
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Affiliation(s)
- H Huang
- Department of Experiment Center, Dongfeng Hospital Affiliated to Hubei University of Medicine, Shiyan 442008, China
| | - Y Wei
- Department of Experiment Center, Dongfeng Hospital Affiliated to Hubei University of Medicine, Shiyan 442008, China
| | - J Wang
- Department of Experiment Center, Dongfeng Hospital Affiliated to Hubei University of Medicine, Shiyan 442008, China
| | - F Ran
- Department of Experiment Center, Dongfeng Hospital Affiliated to Hubei University of Medicine, Shiyan 442008, China
| | - Q Chen
- Department of Experiment Center, Dongfeng Hospital Affiliated to Hubei University of Medicine, Shiyan 442008, China
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Ma Z, Cheng X, Yue T, Shangguan X, Xin Z, Zhang W, Pan J, Wang Q, Xue W. Immune infiltration phenotypes of prostate adenocarcinoma and their clinical implications. Cancer Med 2021; 10:5358-5374. [PMID: 34128342 PMCID: PMC8335836 DOI: 10.1002/cam4.4063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 01/19/2021] [Revised: 04/29/2021] [Accepted: 05/24/2021] [Indexed: 12/24/2022] Open
Abstract
Background Tumor‐infiltrating immune cells participate in the initiation and progression of prostate adenocarcinoma (PRAD). However, it is not fully known how immune infiltration affects the development of PRAD and its clinical presentation. Methods Herein, we investigated the immune infiltration phenotypes in PRAD based on transcriptome profiles, methylation profiles, somatic mutation, and copy number variations. We also developed an immune prognostic model (IPM) to identify unfavorable prognosis. To verify this model, immunohistochemistry staining was performed on a cohort of PRAD samples. Moreover, we constructed a nomogram to assess the survival of PRAD incorporating immune infiltration and other clinical features. Results We categorized PRAD patients into high and low‐level clusters based on immune infiltration phenotypes. The patients in the high‐level clusters had worse survival than their low‐level counterparts. Gene set enrichment analysis indicated that both anti‐ and pro‐tumor terms were enriched in high‐level cluster. Moreover, we identified a positive correlation between anti‐ and pro‐tumor immune cells in PRAD microenvironment. Notably, Somatic mutation analysis showed patients in high‐level cluster had a higher somatic mutation burden of KMT2D, HSPA8, CHD7, and MAP1A. In addition, we developed an IPM with robust predictive ability. The model can distinguish high‐risk PRAD patients with poor prognosis from low‐risk PRAD patients in both training and another three independent validation datasets. Besides, we constructed a nomogram incorporating Gleason score, pathological T stage, and IPM for the prognosis prediction of PRAD patients, which displayed robust predictive ability and might contribute to clinical practice. Conclusion Our work illustrated the immune infiltration phenotypes strongly related to the poor prognosis of PRAD patients, and highlighted the potential of the IPM to identify unfavorable tumor features.
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Affiliation(s)
- Zehua Ma
- State Key Laboratory of Oncogenes and Related Genes, Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiankui Cheng
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province, China
| | - Ting Yue
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai, Shanghai, China
| | - Xun Shangguan
- State Key Laboratory of Oncogenes and Related Genes, Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhixiang Xin
- State Key Laboratory of Oncogenes and Related Genes, Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Weiwei Zhang
- State Key Laboratory of Oncogenes and Related Genes, Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jiahua Pan
- State Key Laboratory of Oncogenes and Related Genes, Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qi Wang
- State Key Laboratory of Oncogenes and Related Genes, Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Xue
- State Key Laboratory of Oncogenes and Related Genes, Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Huang X, Lai Y, Yao N, Cui Y, Yu X, Cai Z, Tang Y, Huang Y, Zeng J. High expression of microRNA-1266 in hepatocellular carcinoma is associated with poor prognosis of patients and biological cell growth. Oncol Lett 2021; 21:347. [PMID: 33747204 DOI: 10.3892/ol.2021.12608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 12/17/2020] [Indexed: 12/12/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a cancer with a poor prognosis and a low survival rate. Previous studies have found that microRNA-1266 (miR-1266) is associated with tumorigenesis and progression of several types of cancer, such as breast cancer and gastric cancer. The aim of the present study was to investigate the effects of miR-1266 on the clinical prognosis and biological behavior of HCC. For this purpose, reverse transcription-quantitative PCR was used to detect the expression of miR-1266 in HCC tissues and HCC cell lines. In addition, Kaplan-Meier survival analysis and Cox regression analysis were used to evaluate the prognostic value of miR-1266. Cell Counting Kit-8 (CCK-8) and Transwell assays were used to analyze the effect of miR-1266 on the biological behavior of cells. The aforementioned assays demonstrated that the examined HCC tissues had a significant upregulation of miR-1266 expression compared with normal tissues (P<0.001). The overexpression of miR-1266 was significantly associated with Tumor-Node-Metastasis stage (P=0.014). The results of the Kaplan-Meier analysis indicated that the 5-year overall survival rate of patients with high expression of miR-1266 was significantly lower compared with patients with low expression of miR-1266 (P=0.015). Cox regression analysis demonstrated that the expression level of miR-1266 could be used as an independent prognostic factor of HCC. CCK-8 and Transwell assays demonstrated that overexpression of miR-1266 promoted the proliferation, migration and invasion of HCC cells. In summary, the findings of the present study indicated that high expression of miR-1266 was positively associated with poor prognosis of patients with HCC and promoted cell proliferation, migration and invasion of HCC cells. miR-1266 may be used as a biomarker for HCC prognosis.
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Affiliation(s)
- Xinhui Huang
- Department of Invasive Technology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, Fujian 350025, P.R. China
| | - Yongping Lai
- Department of Hepatopancreatobiliary Surgery, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, Fujian 350025, P.R. China
| | - Na Yao
- Department of Oncology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Yongliang Cui
- Department of Hepatopancreatobiliary Surgery, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, Fujian 350025, P.R. China
| | - Xiaoling Yu
- Department of Pharmacy, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, Fujian 350025, P.R. China
| | - Zhixiong Cai
- Department of Hepatobiliary Technology Key Laboratory, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, Fujian 350025, P.R. China
| | - Yupeng Tang
- Department of Hepatopancreatobiliary Surgery, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, Fujian 350025, P.R. China
| | - Yao Huang
- Department of Hepatopancreatobiliary Surgery, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, Fujian 350025, P.R. China
| | - Jinhua Zeng
- Department of Hepatopancreatobiliary Surgery, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, Fujian 350025, P.R. China
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Abstract
OBJECTIVE Our study aimed to investigate IL9 and IL9R expression in preeclampsia and assess their effects on trophoblast biological behaviors. METHODS IL9 and IL9R expression of placenta tissue were evaluated by immunochemistry and q-PCR. Using transwell, CCK-8, and tubule formation assays measured invasion, proliferation and angiogenesis of trophoblast with adding IL9 or anti-IL9R antibody. RESULTS IL9 and IL9R levels were significantly decreased in preeclampsia. IL9 improved trophoblast activities. Blocking IL9/IL9R resulted in decreased proliferation, invasion, and tube-formation capability of trophoblast. CONCLUSIONS IL9 and IL9R contribute to the pathogenesis of preeclampsia. IL9/IL9R signaling provides a new potential therapeutic target for preventing preeclampsia.
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Affiliation(s)
- Yi Sun
- Obstetric department, Obstetrics and Gynecology Hospital of Fudan University , Shanghai, China
| | - Siyu Liu
- Obstetric department, Obstetrics and Gynecology Hospital of Fudan University , Shanghai, China
| | - Rong Hu
- Obstetric department, Obstetrics and Gynecology Hospital of Fudan University , Shanghai, China
| | - Qiongjie Zhou
- Obstetric department, Obstetrics and Gynecology Hospital of Fudan University , Shanghai, China
| | - Xiaotian Li
- Obstetric department, Obstetrics and Gynecology Hospital of Fudan University , Shanghai, China.,Obstetric department, Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases , Shanghai, China.,Institute of Biomedical Sciences, Fudan University , Shanghai, China
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13
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Abstract
Esophageal carcinoma (EC) is one of the most common human digestive tract tumors, with high morbidity and mortality. It is necessary to elucidate the mechanism of cancer progression and seek early EC diagnostic markers for prompt detection and intervention. Exosomes are membrane nanovesicles secreted from many nucleated cells, 30-100 nm in diameter, containing various proteins, lipids and nucleic acids. They exist in peripheral blood, urine, ascites and other body fluids, widely engaged with intercellular material exchange and signal communication. Exosomes secreted from EC cells or tissues conduct important functions in tumor growth and progression. The detection and analysis of tumor-derived or tumor-associated exosomes has potential for EC early diagnosis and prognosis assessment. In the present paper, the exosomes' biological behaviors, isolation, detection and functions in EC progression - using as potential biomarkers for EC diagnosis or prognosis - are reviewed.
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Affiliation(s)
- Mei Lin
- Clinical Laboratory, Taizhou People's Hospital Affiliated to Nantong University, Taizhou 225300, Jiangsu Province, PR China
| | - Chenglin Zhou
- Clinical Laboratory, Taizhou People's Hospital Affiliated to Nantong University, Taizhou 225300, Jiangsu Province, PR China
| | - Siyu He
- Clinical Laboratory, Taizhou People's Hospital Affiliated to Nantong University, Taizhou 225300, Jiangsu Province, PR China
| | - Hong Yu
- Pathology Department, Taizhou People's Hospital Affiliated to Nantong University, Taizhou 225300, Jiangsu Province, PR China
| | - Ting Guo
- Clinical Medical Institute, Taizhou People's Hospital Affiliated to Nantong University, Taizhou 225300, Jiangsu Province, PR China
| | - Jun Ye
- Clinical Medical Institute, Taizhou People's Hospital Affiliated to Nantong University, Taizhou 225300, Jiangsu Province, PR China
| | - Xiaoqian Feng
- Clinical Laboratory, Taizhou People's Hospital Affiliated to Nantong University, Taizhou 225300, Jiangsu Province, PR China
| | - Xuefeng Bian
- Clinical Laboratory, Taizhou People's Hospital Affiliated to Nantong University, Taizhou 225300, Jiangsu Province, PR China
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14
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Li L, Fan J, Li D, Liu Y, Shrestha P, Zhong C, Xia X, Huang X. Influence of YKL-40 gene RNA interference on the biological behaviors of endometrial cancer HEC-1A cells. Oncol Lett 2018; 16:1777-1784. [PMID: 30008865 DOI: 10.3892/ol.2018.8814] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Accepted: 10/13/2017] [Indexed: 12/17/2022] Open
Abstract
The present study aimed to investigate the effects of chitinase-3-like protein 1 (YKL-40) gene RNA interference on the biological behaviors and enhanced chemosensitivity of endometrial cancer (EC) HEC-1A cells. YKL-40 small interfering (si)RNA was transduced into EC HEC-1A cells using a lentivirus. The experiment was divided into three groups: The experimental group was transfected with YKL-40 siRNA (si-YKL-40); the mock-treatment group was transfected with transfection reagent only; and the blank control group was left untreated. A reverse transcription-quantitative polymerase chain reaction was performed to investigate the mRNA expression levels of YKL-40. The biological behaviors, including cell proliferation, migration, invasion and apoptosis, were detected by MTT and Transwell assays, and flow cytometry (FCM) analysis, respectively. The results of the present study demonstrated that the mRNA expression levels of YKL-40 were downregulated within HEC-1A cells upon transfection with si-YKL-40 (P<0.05). The proliferative, migratory and invasive abilities of HEC-1A cells were inhibited by si-YKL-40 (P<0.05). The mRNA expression levels of YKL-40 were upregulated within HEC-1A cells following treatment with cisplatin (P<0.05). FCM analysis revealed that the average cellular apoptosis rate increased following the inhibition of YKL-40 gene expression via siRNA (P<0.05). Therefore, the YKL-40 gene may be associated with the proliferative, migratory, invasive and anti-apoptotic ability of HEC-1A cells. YKL-40 downregulation may enhance the sensitivity of human EC HEC-1A cells to chemotherapy.
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Affiliation(s)
- Lili Li
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Jiangtao Fan
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Dahai Li
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Yan Liu
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Poonam Shrestha
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Chunyan Zhong
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Xiuhong Xia
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Xiaobing Huang
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
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15
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Yang X, Xu X, Zhu J, Zhang S, Wu Y, Wu Y, Zhao K, Xing C, Cao J, Zhu H, Li M, Ye Z, Peng W. miR-31 affects colorectal cancer cells by inhibiting autophagy in cancer-associated fibroblasts. Oncotarget 2018; 7:79617-79628. [PMID: 27793031 PMCID: PMC5346740 DOI: 10.18632/oncotarget.12873] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [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: 10/06/2015] [Accepted: 09/25/2016] [Indexed: 01/02/2023] Open
Abstract
Autophagy is a double-edged sword in tumor development. Recent studies have found that miRNAs have an inhibitory effect on the regulation of autophagy. It has been reported that miR-31 plays an important role in the development of colorectal cancer. However, what role miR-31 plays in colorectal cancer-associated fibroblasts (CAFs) has not been determined. In this study, we confirmed that the expression of miR-31 in CAFs was higher than in normal colorectal fibroblasts (NFs). We also found that treatment of CAFs with miR-31 mimic inhibited the expression of the autophagy-related genes Beclin-1, ATG, DRAM and LC3. In addition, we found up-regulation of miR-31 significantly affected colorectal cancer cell behaviors, including proliferation, invasion and apoptosis. Also, up-regulation of miR-31 in CAF could increase the radiosensitivity of colorectal cancer cells co-cultured with CAF. In summary, miR-31 can inhibit autophagy in colorectal CAFs, affect colorectal cancer development, and increase the radiosensitivity of colorectal cancer cells co-cultured with CAF. We hypothesize that miR-31 may become a new target of treatments for colorectal cancer.
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Affiliation(s)
- Xiaodong Yang
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Xiaohui Xu
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China.,Department of General Surgery, The First People's Hospital of Taicang City, Taicang Affiliated Hospital of Soochow University, Suzhou 215400, China
| | - Junjia Zhu
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Shuyu Zhang
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, China
| | - Yong Wu
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Yongyou Wu
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Kui Zhao
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Chungen Xing
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Jianping Cao
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, China
| | - Hong Zhu
- Oncology Department, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Ming Li
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, China
| | - Zhenyu Ye
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Wei Peng
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
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Wang Y, Shao S, Luo M, Huang S, Feng L, Yuan N, Wu F, Dang C, Zhao X. Effects of rat bone marrow-derived mesenchymal stem cells on breast cancer cells with differing hormone receptor status. Oncol Lett 2017; 14:7269-7275. [PMID: 29344162 PMCID: PMC5754910 DOI: 10.3892/ol.2017.7130] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 01/18/2016] [Accepted: 06/23/2017] [Indexed: 11/13/2022] Open
Abstract
Breast cancer is a heterogeneous disease that can be classified into several molecular intrinsic subtypes according to hormone markers, including estrogen receptor, progesterone receptor and human epidermal growth factor receptor-2. Breast cancer cases with different hormone status vary with respect to patient morbidity, metastasis organotropism and disease progression. It is well known that the most preferential relapse site of breast cancer is in the bone, but the metastatic incidence is markedly higher in hormone receptor-positive cancer compared with that in hormone receptor-negative cancers. Bone marrow-derived mesenchymal stem cells (BMSCs) perform important roles at the site of metastasis; however, the effects in different tumors or tumor subtypes are controversial. The present study aimed to explore the various effects of BMSCs on the biological characteristics of different hormone receptor statuses. BMSCs were obtained from female rats and characterized by cell lineage-specific antigens. The MCF-7 and MDA-MB-231 breast cancer cell lines, which are hormone receptor-positive and -negative, respectively, were employed in the present study. The cancer cells were co-cultured with BMSCs, and changes in the biological characteristic of cell growth, apoptosis, migration and epithelial-mesenchymal transition (EMT) were assessed. BMSCs exhibited chemotactic attraction to MCF-7, promoted the proliferation of MCF-7 cells and reduced MCF-7 cell apoptosis. By contrast, BMSCs exerted no marked effects on these behaviors of MDA-MB-231 cells. However, following co-culture with BMSCs, the migratory ability was enhanced in the two cell lines. Furthermore, the expression of epithelial markers (epithelial-cadherin and occludin) was decreased, and mesenchymal marker vimentin was markedly increased in the two cell lines. Notably, the migratory ability of MDA-MB-231 cells was attenuated compared with that of MCF-7 cells. The results from the present study indicated that BMSCs may favor receptor-positive cancer cell proliferation in bone and promote enhanced invasiveness of receptor-negative compared with receptor-positive cancer cells.
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Affiliation(s)
- Ying Wang
- Department of Surgical Oncology, The First Hospital Affiliated to The School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Shan Shao
- Department of Oncology, The First Hospital Affiliated to The School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Minna Luo
- Department of Oncology, The First Hospital Affiliated to The School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Shangke Huang
- Department of Oncology, The First Hospital Affiliated to The School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Lu Feng
- Department of Oncology, The First Hospital Affiliated to The School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Na Yuan
- Department of Oncology, The First Hospital Affiliated to The School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Fang Wu
- Department of Oncology, The First Hospital Affiliated to The School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Chengxue Dang
- Department of Surgical Oncology, The First Hospital Affiliated to The School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Xinhan Zhao
- Department of Oncology, The First Hospital Affiliated to The School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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Cai J, Chen J, Zhang W, Yang P, Zhang C, Li M, Yao K, Wang H, Li Q, Jiang C, Jiang T. Loss of ATRX, associated with DNA methylation pattern of chromosome end, impacted biological behaviors of astrocytic tumors. Oncotarget 2015; 6:18105-15. [PMID: 25971279 DOI: 10.18632/oncotarget.3906] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 04/24/2015] [Indexed: 12/31/2022] Open
Abstract
Loss of ATRX leads to epigenetic alterations, including abnormal levels of DNA methylation at repetitive elements such as telomeres in murine cells. We conducted an extensive DNA methylation and mRNA expression profile study on a cohort of 82 patients with astrocytic tumors to study whether ATRX expression was associated with DNA methylation level in astrocytic tumors and in which cellular functions it participated. We observed that astrocytic tumors with lower ATRX expression harbored higher DNA methylation level at chromatin end and astrocytic tumors with ATRX-low had distinct gene expression profile and DNA methylation profile compared with ATRX-high tumors. Then, we uncovered that several ATRX associated biological functions in the DNA methylation and mRNA expression profile (GEP), including apoptotic process, DNA-dependent positive regulation of transcription, chromatin modification, and observed that ATRX expression was companied by MGMT methylation and expression. We also found that loss of ATRX caused by siRNA induced apoptotic cells increasing, reduced tumor cell proliferation and repressed the cell migration in glioma cells. Our results showed ATRX-related regulatory functions of the combined profiles from DNA methylation and mRNA expression in astrocytic tumors, and delineated that loss of ATRX impacted biological behaviors of astrocytic tumor cells, providing important resources for future dissection of ATRX role in glioma.
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