1
|
Yuan Z, Li M, Tang Z. BCAT1 promotes cell proliferation, migration, and invasion via the PI3K-Akt signaling pathway in oral squamous cell carcinoma. Oral Dis 2024. [PMID: 39056279 DOI: 10.1111/odi.15084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 06/30/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024]
Abstract
OBJECTIVES To analyze the expression, biological function of branched chain amino-acid transaminase 1 (BCAT1) in oral squamous cell carcinoma (OSCC). MATERIALS AND METHODS Real-time PCR and immunohistochemistry were used to analyze the expression of BCAT1 protein in OSCC and normal oral tissues. Based on the clinicopathological information of patients, the relationship between the expression of BCAT1 protein and other clinicopathological factors was analyzed. Real-time PCR and western blot assays were used to analyze the expression of BCAT1 gene and protein in normal human oral keratinocytes (HOK) and human OSCC cells, respectively. After BCAT1 overexpression or knockdown, the proliferation, cell cycle, migration, and invasion of human OSCC cells were analyzed by CCK8, flow cytometry, wound healing, and transwell invasion assays, respectively. After adding the BCAT1 inhibitor EGR240 to OSCC cells, the changes in cell proliferation, migration, and invasion ability in OSCC cells were analyzed. Based on the TCGA database, the involved signal pathway in BCAT1-related and BCAT1-binding genes was obtained for Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, verified by western blot assays. After inhibiting PI3K, the effect of BCAT1 on the expression of the downstream phosphorylated protein of the PI3K-Akt signaling pathway was analyzed by western blot assays. The relationship between the expression of BCAT1 and EMT-related protein of OSCC cells was also analyzed. RESULTS The expression of BCAT1 gene and protein were upregulated in OSCC tissue, which positively correlated with the pathological grade of patients with OSCC. Compared with normal oral keratinocytes, BCAT1 gene and protein were upregulated in OSCC cells. BCAT1 overexpression promoted the proliferation, migration, and invasion of OSCC cells. BCAT1 knockdown or inhibition could reduce the proliferation, migration, and invasion abilities of OSCC cells. The results of bioinformatics analysis and Western bolt showed that BCAT1 could regulate the activation of PI3K-Akt signaling pathway, and promote epithelial-mesenchymal transition (EMT) of OSCC cells. CONCLUSIONS BCAT1 could promote the proliferation, migration, and invasion of OSCC cells via PI3K-Akt signaling pathway, which is a potential therapeutic target for OSCC.
Collapse
Affiliation(s)
| | - Ming Li
- Hunan Key Laboratory of Oral Health Research & Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, China
| | - Zhangui Tang
- Hunan Key Laboratory of Oral Health Research & Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, China
| |
Collapse
|
2
|
Al Naji H, Winter JM, Pedersen SK, Roy A, Byrne SE, Young GP, Symonds EL. Evaluating the Role of Methylated Circulating Tumor DNA in Combination With Pathological Prognostic Factors for Predicting Recurrence of Colorectal Cancer. Biomark Insights 2024; 19:11772719241232870. [PMID: 38426070 PMCID: PMC10903227 DOI: 10.1177/11772719241232870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 01/24/2024] [Indexed: 03/02/2024] Open
Abstract
Background Colorectal cancer (CRC) has a high rate of recurrence, in particular for advanced disease, but prognosis based on staging and pathology at surgery can have limited efficacy. The presence of circulating tumor DNA (ctDNA) at diagnosis could be used to improve the prediction for disease recurrence. Objectives To assess the impact of detecting methylated BCAT1/IKZF1 ctDNA at diagnosis in combination with demographic, lifestyle, clinical factors and tumor pathology, to assess predictive value for recurrence. Design A retrospective cohort study. Methods The cohort included 180 patients (36 with recurrent CRC), who had undergone complete treatment and surveillance for a minimum of 3 years. Participant clinical details and ctDNA methylated BCAT1/IKZF1 results were compared between those with and without recurrence, and cox regression analysis assessed each factor on disease-free survival. Results Clinical factors independently associated with reduced disease-free survival included nodal involvement (HR = 3.83, 95% CI 1.56-9.43, P = .003), M1 stage (HR = 4.41, 95% CI 1.18-16.45, P = .027), a resection margin less than 2 mm (HR = 4.60, 95% CI 1.19-17.76, P = .027), perineural involvement (HR = 2.50, 95% CI 1.01-6.17, P = .047) and distal tumors (HR = 3.13, 95% CI 1.07-9.18, P = .037). Methylated BCAT1/IKZF1 was detected in 51.7% (93/180) of pre-treatment plasma samples. When a positive ctDNA finding was considered in combination with these clinical prognostic factors, there was improved predictive power of recurrence for patients with perineural involvement (HR = 4.44, 95% CI 1.92-10.26, P < .001), and it marginally improved the predictive factor for M1 stage (HR = 7.59, 95% CI 2.30-25.07, P = .001) and distal tumors (HR = 5.04, 95% CI 1.88-13.49, P = .001). Conclusions Nodal invasion, metastatic disease, distal tumor site, low resection margins and perineural invasion were associated with disease recurrence. Pre-treatment methylated ctDNA measurement can improve the predictive value for recurrence in a subset of patients, particularly those with perineural involvement. Registration Australian and New Zealand Clinical Trials Registry #12611000318987.
Collapse
Affiliation(s)
- Hiba Al Naji
- Department of Medicine, College of Medicine and Public Health, Flinders University, Bedford Park, SA, Australia
| | - Jean M Winter
- Cancer Research, Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, Australia
| | | | - Amitesh Roy
- Cancer Research, Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, Australia
- Department of Oncology, Flinders Medical Centre, SALHN, Bedford Park, SA, Australia
| | - Susan E Byrne
- Cancer Research, Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, Australia
| | - Graeme P Young
- Cancer Research, Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, Australia
| | - Erin L Symonds
- Cancer Research, Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, Australia
- Bowel Health Service, Gastroenterology Department, Flinders Medical Centre, SALHN, Bedford Park, SA, Australia
| |
Collapse
|
3
|
Liu H, Zhang J, Li J, Cao X, Yu K, Xia X, Li Z, Wang F. LncRNA PSMB8-AS1 increases glioma malignancy via the miR-382-3p/BCAT1 axis. Transl Oncol 2024; 39:101806. [PMID: 38235619 PMCID: PMC10628860 DOI: 10.1016/j.tranon.2023.101806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 09/25/2023] [Accepted: 10/14/2023] [Indexed: 01/19/2024] Open
Abstract
BACKGROUND This study aimed to investigate the specific roles of the long non-coding RNA (lncRNA) proteasome 20S subunit beta 8 (PSMB8)-antisense RNA 1 (AS1)/microRNA (miR)-382-3p/branched-chain amino acid transaminase 1 (BCAT1) interaction network in gliomas. METHODS Western blotting and quantitative reverse transcription-polymerase chain reaction were performed to assess the expression levels of lncRNA PSMB8-AS1, BCAT1, and miR-382-3p. Moreover, the cell proliferation, migration, and apoptosis were assessed using the cell counting kit-8, Transwell, and caspase-3 activity assays, respectively. The biological role of lncRNA PSMB8-AS1 in glioma was investigated in vivo using a xenograft mouse model. Additionally, the associations among lncRNA PSMB8-AS1, miR-382-3p, and BCAT1 were analyzed using dual-luciferase and RNA immunoprecipitation assays and bioinformatics analyses. RESULTS Glioma cell lines and tissues exhibited overexpression of lncRNA PSMB8-AS1 and BCAT1 and low expression of miR-382-3p. Knockdown of PSMB8-AS1 remarkably repressed the tumor growth in vivo and the migration and proliferation of glioma cells in vitro. In contrast, knockdown of lncRNA PSMB8-AS1 increased the cell apoptosis. Mechanistically, PSMB8-AS1 directly targeted miR-382-3p. By sponging miR-382-3p, lncRNA PSMB8-AS1 stimulated the migration and proliferation of glioma cells and suppressed their apoptosis. Additionally, miR-382-3p directly targeted BCAT1. Inhibition of miR-382-3p reversed the antitumor effects of BCAT1 silencing on glioma progression. CONCLUSION Our study revealed that lncRNA PSMB8-AS1 aggravated glioma malignancy by enhancing BCAT1 expression after competitively binding to miR-382-3p. Therefore, lncRNA PSMB8-AS1 may be a potential biomarker and therapeutic target for glioma treatment.
Collapse
Affiliation(s)
- Haibo Liu
- Department of Neurosurgery, Pengzhou People's Hospital, Chengdu 610500, Sichuan, China; Department of Neurosurgery, Pengzhou Second People's Hospital, Chengdu 610500, Sichuan, China; Department of Neurosurgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China
| | - Jie Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China
| | - Jiamin Li
- Department of Critical Care Medicine, Xindu District People's Hospital of Chengdu, Chengdu 610500, Sichuan, China
| | - Xiaoying Cao
- Department of Neurosurgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China
| | - Kai Yu
- Department of Neurosurgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China
| | - Xun Xia
- Department of Neurosurgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China
| | - Zongxi Li
- Department of Neurosurgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China
| | - Fengbo Wang
- Department of Rehabilitation, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China.
| |
Collapse
|
4
|
Ding Y, Wang X, Lu S, Lai A, Xie B, He X, Liu Q. BCAT1, as a prognostic factor for HCC, can promote the development of liver cancer through activation of the AKT signaling pathway and EMT. J Mol Histol 2023; 54:25-39. [PMID: 36344754 DOI: 10.1007/s10735-022-10108-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 10/21/2022] [Indexed: 11/09/2022]
Abstract
More and more studies have shown that Branched chain amino acid transaminase 1 (BCAT1) is involved in the occurrence and development of a variety of tumors. However, the mechanism of its occurrence and development in hepatocellular carcinoma (HCC) remains unclear. Here, we demonstrated the relationship between BCAT1 and AKT signaling pathway, as well as EMT, and the clinical significance of BCAT1 by using BCAT1 expression in 5 cell lines and 113 liver cancer and non-liver cancer tissue samples. The results showed that the expression of AKT was positively correlated with BCAT1 in HCC tissues, and BCAT1 could promote the progression of HCC cells through the AKT signaling pathway. Clinical analysis and Bioinformatics technology analysis revealed that BCAT1 was correlated with poor prognosis, and BCAT1 expression in the HCC tissues was evidently correlated with tumor number, vascular invasion, Edmondson grade and TNM stage (P < 0.05). In vitro studies showed that BCAT1 increased the invasion and migration of in MHCC-97H cells a d Huh7 cells. By inhibiting the expression of the BCAT1 gene, we detected the corresponding changes in the expression levels of Twist, E-cadherin and Vimentin, confirming that BCAT1 may promote the invasion and migration of HCC cells through epithelial-mesenchymal transformation (EMT). Overall, BCAT1 can activate AKT signaling pathway and EMT to promote the development and metastasis of HCC cells. this study may provide new ideas and directions for cancer diagnosis and treatment.
Collapse
Affiliation(s)
- Yifeng Ding
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, Jiangxi, China
| | - Xiaoqing Wang
- Department of Psychiatry, The First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, Jiangxi, China
| | - Shaowei Lu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, Jiangxi, China
| | - Aijun Lai
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, Jiangxi, China
| | - Binhui Xie
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, Jiangxi, China
| | - Xiao He
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, Jiangxi, China
| | - Qingquan Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, Jiangxi, China.
| |
Collapse
|
5
|
Fala M, Ros S, Sawle A, Rao JU, Tsyben A, Tronci L, Frezza C, Mair R, Brindle KM. The role of branched-chain aminotransferase 1 in driving glioblastoma cell proliferation and invasion varies with tumor subtype. Neurooncol Adv 2023; 5:vdad120. [PMID: 37885806 PMCID: PMC10599397 DOI: 10.1093/noajnl/vdad120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023] Open
Abstract
Background Branched-chain aminotransferase 1 (BCAT1) has been proposed to drive proliferation and invasion of isocitrate dehydrogenase (IDH) wild-type glioblastoma cells. However, the Cancer Genome Atlas (TCGA) dataset shows considerable variation in the expression of this enzyme in glioblastoma. The aim of this study was to determine the role of BCAT1 in driving the proliferation and invasion of glioblastoma cells and xenografts that have widely differing levels of BCAT1 expression and the mechanism responsible. Methods The activity of BCAT1 was modulated in IDH wild-type patient-derived glioblastoma cell lines, and in orthotopically implanted tumors derived from these cells, to examine the effects of BCAT1 expression on tumor phenotype. Results In cells with constitutively high BCAT1 expression and a glycolytic metabolic phenotype, inducible shRNA knockdown of the enzyme resulted in reduced proliferation and invasion by increasing the concentration of α-ketoglutarate, leading to reduced DNA methylation, HIF-1α destabilization, and reduced expression of the transcription factor Forkhead box protein M1 (FOXM1). Conversely, overexpression of the enzyme increased HIF-1α expression and promoted proliferation and invasion. However, in cells with an oxidative phenotype and very low constitutive expression of BCAT1 increased expression of the enzyme had no effect on invasion and reduced cell proliferation. This occurred despite an increase in HIF-1α levels and could be explained by decreased TCA cycle flux. Conclusions There is a wide variation in BCAT1 expression in glioblastoma and its role in proliferation and invasion is dependent on tumor subtype.
Collapse
Affiliation(s)
- Maria Fala
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, United Kingdom
| | - Susana Ros
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, United Kingdom
| | - Ashley Sawle
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, United Kingdom
| | - Jyotsna U Rao
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, United Kingdom
| | - Anastasia Tsyben
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, United Kingdom
| | - Laura Tronci
- MRC Cancer Unit, University of Cambridge, Hutchison/MRC Research Centre, Cambridge, United Kingdom
| | - Christian Frezza
- MRC Cancer Unit, University of Cambridge, Hutchison/MRC Research Centre, Cambridge, United Kingdom
| | - Richard Mair
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, United Kingdom
| | - Kevin M Brindle
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, United Kingdom
- Department of Biochemistry, University of Cambridge, Cambridge, United Kingdom
| |
Collapse
|
6
|
Kumar R, Mishra A, Gautam P, Feroz Z, Vijayaraghavalu S, Likos EM, Shukla GC, Kumar M. Metabolic Pathways, Enzymes, and Metabolites: Opportunities in Cancer Therapy. Cancers (Basel) 2022; 14:5268. [PMID: 36358687 PMCID: PMC9656396 DOI: 10.3390/cancers14215268] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/09/2022] [Accepted: 10/19/2022] [Indexed: 07/30/2023] Open
Abstract
Metabolic reprogramming enables cancer cells to proliferate and produce tumor biomass under a nutrient-deficient microenvironment and the stress of metabolic waste. A cancer cell adeptly undergoes a variety of adaptations in metabolic pathways and differential expression of metabolic enzyme genes. Metabolic adaptation is mainly determined by the physiological demands of the cancer cell of origin and the host tissue. Numerous metabolic regulators that assist cancer cell proliferation include uncontrolled anabolism/catabolism of glucose metabolism, fatty acids, amino acids metabolism, nucleotide metabolism, tumor suppressor genes, microRNAs, and many regulatory enzymes and genes. Using this paradigm, we review the current understanding of metabolic reprogramming in tumors and discuss the new strategies of cancer metabolomics that can be tapped into for cancer therapeutics.
Collapse
Affiliation(s)
- Rishabh Kumar
- Department of Biochemistry, Faculty of Science, University of Allahabad, Prayagraj 211002, UP, India
| | - Anurag Mishra
- Department of Biochemistry, Faculty of Science, University of Allahabad, Prayagraj 211002, UP, India
| | - Priyanka Gautam
- Department of Biochemistry, Faculty of Science, University of Allahabad, Prayagraj 211002, UP, India
| | - Zainab Feroz
- Department of Biochemistry, Faculty of Science, University of Allahabad, Prayagraj 211002, UP, India
| | | | - Eviania M. Likos
- Center for Gene Regulation in Health and Disease, Department of Biological, Geological, and Environmental Sciences, Cleveland State University, 2121 Euclid Avenue, Cleveland, OH 44115, USA
| | - Girish C. Shukla
- Center for Gene Regulation in Health and Disease, Department of Biological, Geological, and Environmental Sciences, Cleveland State University, 2121 Euclid Avenue, Cleveland, OH 44115, USA
| | - Munish Kumar
- Department of Biochemistry, Faculty of Science, University of Allahabad, Prayagraj 211002, UP, India
| |
Collapse
|
7
|
Penick ER, Bateman NW, Rojas C, Magana C, Conrads K, Zhou M, Hood BL, Wang G, Parikh N, Huang Y, Darcy KM, Casablanca Y, Mhawech-Fauceglia P, Conrads TP, Maxwell GL. Proteomic alterations associated with residual disease in neoadjuvant chemotherapy treated ovarian cancer tissues. Clin Proteomics 2022; 19:35. [PMID: 36195845 PMCID: PMC9531351 DOI: 10.1186/s12014-022-09372-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 09/15/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Optimal cytoreduction to no residual disease (R0) correlates with improved disease outcome for high-grade serous ovarian cancer (HGSOC) patients. Treatment of HGSOC patients with neoadjuvant chemotherapy, however, may select for tumor cells harboring alterations in hallmark cancer pathways including metastatic potential. This study assessed this hypothesis by performing proteomic analysis of matched, chemotherapy naïve and neoadjuvant chemotherapy (NACT)-treated HGSOC tumors obtained from patients who had suboptimal (R1, n = 6) versus optimal (R0, n = 14) debulking at interval debulking surgery (IDS). METHODS Tumor epithelium was harvested by laser microdissection from formalin-fixed, paraffin-embedded tissues from matched, pre- and post-NACT treated tumors for twenty HGSOC patients and analyzed by quantitative mass spectrometry-based proteomics. RESULTS Differential analysis of patient matched pre- and post-NACT treated tumors revealed proteins associated with cell survival and metabolic signaling to be significantly altered in post-NACT treated tumor cells. Comparison of pre-NACT treated tumors from suboptimal (R1) versus optimally (R0) debulked patients identified proteins associated with tumor cell viability and invasion signaling enriched in R1 patients. We identified five proteins altered between R1 and R0 patients in pre- NACT treated tumors that significantly correlated with PFS in an independent cohort of HGSOC patients, including Fermitin family homolog 2 (FERMT2), a protein elevated in R1 that correlated with disease progression in HGSOC patients (multivariate Cox HR = 1.65, Wald p = 0.022) and increased metastatic potential in solid-tumor malignancies. CONCLUSIONS This study identified distinct proteome profiles in patient matched pre- and post-NACT HGSOC tumors that correlate with NACT resistance and that may predict residual disease status at IDS that collectively warrant further pre-clinical investigation.
Collapse
Affiliation(s)
- Emily R Penick
- Women's Health Integrated Research Center, Gynecologic Cancer Center of Excellence, Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA
| | - Nicholas W Bateman
- Women's Health Integrated Research Center, Gynecologic Cancer Center of Excellence, Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA.,Murtha Cancer Center Research Program, Department of Surgery, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., 6720A Rockledge Dr., Suite 100, Bethesda, MD, 20817, USA
| | - Christine Rojas
- Women's Health Integrated Research Center, Gynecologic Cancer Center of Excellence, Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA
| | - Cuauhtemoc Magana
- Department of Anatomic Pathology, Division of Gynecologic Pathology, University of Southern California, Los Angeles, CA, 9007, USA
| | - Kelly Conrads
- Women's Health Integrated Research Center, Gynecologic Cancer Center of Excellence, Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., 6720A Rockledge Dr., Suite 100, Bethesda, MD, 20817, USA
| | - Ming Zhou
- Women's Health Integrated Research Center, Gynecologic Cancer Center of Excellence, Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA.,Women's Health Integrated Research Center, Women's Service Line, Inova Health System, 3289 Woodburn Rd, Falls Church, VA, 22003, USA
| | - Brian L Hood
- Women's Health Integrated Research Center, Gynecologic Cancer Center of Excellence, Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., 6720A Rockledge Dr., Suite 100, Bethesda, MD, 20817, USA
| | - Guisong Wang
- Women's Health Integrated Research Center, Gynecologic Cancer Center of Excellence, Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., 6720A Rockledge Dr., Suite 100, Bethesda, MD, 20817, USA
| | - Niyati Parikh
- Women's Health Integrated Research Center, Gynecologic Cancer Center of Excellence, Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., 6720A Rockledge Dr., Suite 100, Bethesda, MD, 20817, USA
| | - Ying Huang
- Women's Health Integrated Research Center, Gynecologic Cancer Center of Excellence, Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., 6720A Rockledge Dr., Suite 100, Bethesda, MD, 20817, USA
| | - Kathleen M Darcy
- Women's Health Integrated Research Center, Gynecologic Cancer Center of Excellence, Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA.,Murtha Cancer Center Research Program, Department of Surgery, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., 6720A Rockledge Dr., Suite 100, Bethesda, MD, 20817, USA
| | - Yovanni Casablanca
- Women's Health Integrated Research Center, Gynecologic Cancer Center of Excellence, Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA.,Murtha Cancer Center Research Program, Department of Surgery, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA
| | - Paulette Mhawech-Fauceglia
- Department of Anatomic Pathology, Division of Gynecologic Pathology, University of Southern California, Los Angeles, CA, 9007, USA
| | - Thomas P Conrads
- Women's Health Integrated Research Center, Gynecologic Cancer Center of Excellence, Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA. .,Murtha Cancer Center Research Program, Department of Surgery, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA. .,Women's Health Integrated Research Center, Women's Service Line, Inova Health System, 3289 Woodburn Rd, Falls Church, VA, 22003, USA.
| | - G Larry Maxwell
- Women's Health Integrated Research Center, Gynecologic Cancer Center of Excellence, Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA. .,Murtha Cancer Center Research Program, Department of Surgery, Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD, 20889, USA. .,Women's Health Integrated Research Center, Women's Service Line, Inova Health System, 3289 Woodburn Rd, Falls Church, VA, 22003, USA.
| |
Collapse
|
8
|
Liu Y, Wang K, Li G, Chen Z. Differential expression pattern, bioinformatics analysis, and validation of circRNA and mRNA in patients with arteriosclerosis. Front Cardiovasc Med 2022; 9:942797. [PMID: 36176992 PMCID: PMC9513155 DOI: 10.3389/fcvm.2022.942797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 08/04/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundLower limb arteriosclerosis obliterans (ASO) is the formation of atherosclerotic plaques in lower limb arteries, leading to vascular stenosis and occlusion, and is a major factor leading to lower limb amputation. The ASO seriously endangers the physical and mental health of patients. As living standards improve, the disease tends to occur in younger patients, and the incidence keeps increasing year by year. The circular RNAs (circRNAs) have been found to be tissue-specific, and they play an important role in a variety of diseases, but there are few studies on the pathogenic role and expression of circRNAs in ASOs.MethodThree diseased arteries from patients with ASO and three healthy arteries from healthy donors were collected for second-generation sequencing, and the pathogenic pathways and possible pathogenic circRNAs related to ASO were screened through bioinformatics analysis. PCR and agarose gel electrophoresis were used to validate the sequencing results. The expression of circRNA-0008706 in human arterial smooth muscle cells (HASMCs) was knocked down using siRNA technology to explore its function.ResultWe identified 480 differentially expressed (DE) circRNAs and 2,997 DEmRNAs. Functional analysis revealed that epithelial-to-mesenchymal transition (EMT), lipid transport, regulation of extracellular matrix disassembly, regulation of cardiac muscle cell proliferation, branched-chain amino acid biosynthetic process, and positive regulation of cell growth and migration were enriched. Based on our previous microRNA array results, we constructed an ASO disease-specific competing endogenous (ceRNA) network. After validation, circRNA-0008706 was selected for functional analysis. Knockdown of circRNA-0008706 significantly suppressed the proliferation and migration phenotype of HASMCs and decreased the BCAT1 expression, which may be due to the specific binding of circRNA-0008706 to microRNA-125b-5p.ConclusionThis study is the first to compare the circRNA and mRNA expression profiles of ASOs and healthy arterial specimens and to construct a disease-specific ceRNA network for ASOs. This study may provide a new therapeutic target for ASO.
Collapse
Affiliation(s)
- Yunyun Liu
- Department of Gynecologic Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Department of Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Kangjie Wang
- Division of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Guanhua Li
- Division of Cardiovascular Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Guanhua Li
| | - Zhibo Chen
- Division of Cardiovascular Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Zhibo Chen
| |
Collapse
|
9
|
Li GS, Huang HQ, Liang Y, Pang QY, Sun HJ, Huang ZG, Dang YW, Yang LJ, Chen G. BCAT1: A risk factor in multiple cancers based on a pan-cancer analysis. Cancer Med 2022; 11:1396-1412. [PMID: 34984849 PMCID: PMC8894718 DOI: 10.1002/cam4.4525] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 12/10/2021] [Accepted: 12/11/2021] [Indexed: 12/21/2022] Open
Abstract
Background Although branched chain amino acid transaminase 1 (BCAT1) has been identified to play an essential role in multiple tumors, no studies on its role in pan‐cancer have been consulted before. Methods The study comprehensively analyzes the expression, potential mechanisms, and clinical significance of BCAT1 in pan‐cancer through utilizing 16,847 samples, providing novel clues for the treatment of cancers. A Kruskal–Wallis test and the Wilcoxon rank‐sum and signed‐rank tests were applied to investigate diverse BCAT1 expression between various groups (e.g., cancer tissues versus normal tissues). Spearman’s rank correlation coefficient was used in all correlation analyses in the study. Cox analyses and Kaplan‐Meier curves were utilized to identify the prognosis significance of BCAT1 expression in cancers. The significance of BCAT1 expression in differentiating cancer and non‐cancer tissues was explored via the area under the receiver operating characteristic curves (AUC). Results The differential expression of BCAT1 was detected in various cancers (p < 0.05), which is relevant to some DNA methyltransferases expression. BCAT1 expression was associated with mismatch repair gene expression, immune checkpoint inhibitors expression, microsatellite instability, and tumor mutational burden in some cancers, indicating its potential in immunotherapy. BCAT1 expression showed prognosis significance and played a risk role in multiple cancers (hazard ratio > 0, p < 0.05). BCAT1 expression also demonstrated conspicuous ability to distinguish some cancers tissues from their normal tissues (AUC > 0.7), indicating its potential to detect cancers. Further analyses on head and neck squamous cell carcinoma certified upregulated BCAT1 expression at both mRNA and protein levels in this disease based on in‐house tissue microarrays and multicenter datasets. Conclusions For the first time, the research comprehensively demonstrates the overexpression of BCAT1 in pan‐cancer, which improves the understanding of the pathogenesis of BCAT1 in pan‐cancer. Upregulated BCAT1 expression represented a poor prognosis for cancers patients, and it serves as a potential marker for cancer immunotherapy.
Collapse
Affiliation(s)
- Guo-Sheng Li
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - He-Qing Huang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yao Liang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Qiu-Yu Pang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Hao-Jia Sun
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhi-Guang Huang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yi-Wu Dang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Lin-Jie Yang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Gang Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| |
Collapse
|
10
|
Gouda G, Gupta MK, Donde R, Behera L, Vadde R. Metabolic pathway-based target therapy to hepatocellular carcinoma: a computational approach. THERANOSTICS AND PRECISION MEDICINE FOR THE MANAGEMENT OF HEPATOCELLULAR CARCINOMA, VOLUME 2 2022:83-103. [DOI: 10.1016/b978-0-323-98807-0.00003-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/06/2023]
|
11
|
Ye J, Yan Y, Xin L, Liu J, Tang T, Bao X. Long non-coding RNA TMPO-AS1 facilitates the progression of colorectal cancer cells via sponging miR-98-5p to upregulate BCAT1 expression. J Gastroenterol Hepatol 2022; 37:144-153. [PMID: 34370878 DOI: 10.1111/jgh.15657] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/09/2021] [Accepted: 08/03/2021] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND AIM Colorectal cancer, as a common malignant carcinoma in the gastrointestinal tract, has a high mortality globally. However, the specific molecular mechanisms of long non-coding RNA (lncRNA) thymopoietin antisense transcript 1 (TMPO-AS1) in colorectal cancer were unclear. METHODS We tested the expression level of TMPO-AS1 via qRT-PCR in colorectal cancer cells, while the protein levels of branched chain amino acid transaminase 1 (BCAT1) and the stemness-related proteins were evaluated by western blot analysis. Colony formation, EdU staining, TUNEL, flow cytometry, and sphere formation assays were to assess the biological behaviors of colorectal cancer cells. Then, luciferase reporter, RIP, and RNA pull down assay were applied for confirming the combination between microRNA-98-5p (miR-98-5p) and TMPO-AS1/BCAT1. RESULTS TMPO-AS1 was aberrantly expressed at high levels in colorectal cancer cells. Silenced TMPO-AS1 restrained cell proliferation and stemness and promoted apoptosis oppositely, while overexpressing TMPO-AS1 exerted the adverse effects. Furthermore, miR-98-5p was proven to a target of TMPO-AS1 inhibit cell progression in colorectal cancer. Additionally, BCAT1 was proved to enhance cell progression as the target of miR-98-5p, and it offset the effect of silenced TMPO-AS1 on colorectal cancer cells. CONCLUSION TMPO-AS1 promotes the progression of colorectal cancer cells via sponging miR-98-5p to upregulate BCAT1 expression.
Collapse
Affiliation(s)
- Jinjun Ye
- Department of General Surgery, Longgang Central Hospital, Shenzhen, China
| | - Yukuang Yan
- Department of General Surgery, Longgang Central Hospital, Shenzhen, China
| | - Le Xin
- Department of General Surgery, Longgang Central Hospital, Shenzhen, China
| | - Jidong Liu
- Department of General Surgery, Longgang Central Hospital, Shenzhen, China
| | - Tao Tang
- Department of General Surgery, Longgang Central Hospital, Shenzhen, China
| | - Xing Bao
- Department of General Surgery, Longgang Central Hospital, Shenzhen, China
| |
Collapse
|
12
|
Woo SM, Kim MK, Park B, Cho EH, Lee TR, Ki CS, Yoon KA, Kim YH, Choi W, Kim DY, Hwang JH, Cho JH, Han SS, Lee WJ, Park SJ, Kong SY. Genomic Instability of Circulating Tumor DNA as a Prognostic Marker for Pancreatic Cancer Survival: A Prospective Cohort Study. Cancers (Basel) 2021; 13:5466. [PMID: 34771630 PMCID: PMC8582446 DOI: 10.3390/cancers13215466] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/18/2021] [Accepted: 10/27/2021] [Indexed: 12/26/2022] Open
Abstract
Genomic instability of circulating tumor DNA (ctDNA) as a prognostic biomarker has not been evaluated in pancreatic cancer. We investigated the role of the genomic instability index of ctDNA in pancreatic ductal adenocarcinoma (PDAC). We prospectively enrolled 315 patients newly diagnosed with resectable (n = 110), locally advanced (n = 78), and metastatic (n = 127) PDAC from March 2015 through January 2020. Low-depth whole-genome cell-free DNA sequencing identified genome-wide copy number alterations using instability score (I-score) to reflect genome-wide instability. Plasma cell-free and matched tumor tissue DNA from 15 patients with resectable pancreatic cancer was sequenced to assess the concordance of chromosomal copy number alteration profiles. Associations of I-score with clinical factors or survival were assessed. Seventy-six patients had high genomic instability with I-score > 7.3 in pre-treatment ctDNA; proportions of high I-score were 5.5%, 5.1%, and 52% in resectable, locally advanced, and metastatic stages, respectively. Correlation coefficients between Z-scores of plasma and tissue DNA at segment resolution were high (r2 = 0.82). Univariable analysis showed the association of I-score with progression-free survival in each stage. Multivariable analyses demonstrated that clinical stage-adjusted I-scores were significant factors for progression-free and overall survival. In these patients, ctDNA genomic I-scores provided prognostic information relevant to progression-free survival in each clinical stage.
Collapse
Affiliation(s)
- Sang Myung Woo
- Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang 10408, Korea; (S.M.W.); (S.-S.H.); (W.J.L.); (S.-J.P.)
- Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang 10408, Korea; (Y.-H.K.); (W.C.)
| | - Min Kyeong Kim
- Division of Translational Science, National Cancer Center, Goyang 10408, Korea;
| | - Boram Park
- Biostatistics Collaboration Team, Research Core Center, Research Institute, National Cancer Center, Goyang 10408, Korea;
| | - Eun-Hae Cho
- Genome Research Center, GC Genome, Yongin 16924, Korea; (E.-H.C.); (T.-R.L.); (C.-S.K.); (D.Y.K.)
| | - Tae-Rim Lee
- Genome Research Center, GC Genome, Yongin 16924, Korea; (E.-H.C.); (T.-R.L.); (C.-S.K.); (D.Y.K.)
| | - Chang-Seok Ki
- Genome Research Center, GC Genome, Yongin 16924, Korea; (E.-H.C.); (T.-R.L.); (C.-S.K.); (D.Y.K.)
| | - Kyong-Ah Yoon
- College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea;
| | - Yun-Hee Kim
- Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang 10408, Korea; (Y.-H.K.); (W.C.)
- Molecular Imaging Branch, Division of Convergence Technology, National Cancer Center, Goyang 10408, Korea
| | - Wonyoung Choi
- Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang 10408, Korea; (Y.-H.K.); (W.C.)
| | - Do Yei Kim
- Genome Research Center, GC Genome, Yongin 16924, Korea; (E.-H.C.); (T.-R.L.); (C.-S.K.); (D.Y.K.)
| | - Jin-Hyeok Hwang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Korea;
| | - Jae Hee Cho
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon 21556, Korea;
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 06273, Korea
| | - Sung-Sik Han
- Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang 10408, Korea; (S.M.W.); (S.-S.H.); (W.J.L.); (S.-J.P.)
| | - Woo Jin Lee
- Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang 10408, Korea; (S.M.W.); (S.-S.H.); (W.J.L.); (S.-J.P.)
| | - Sang-Jae Park
- Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang 10408, Korea; (S.M.W.); (S.-S.H.); (W.J.L.); (S.-J.P.)
| | - Sun-Young Kong
- Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang 10408, Korea; (Y.-H.K.); (W.C.)
- Division of Translational Science, National Cancer Center, Goyang 10408, Korea;
- Department of Laboratory Medicine, National Cancer Center, Goyang 10408, Korea
| |
Collapse
|
13
|
Broholm M, Degett TH, Furbo S, Fiehn AMK, Bulut M, Litman T, Eriksen JO, Troelsen JT, Gjerdrum LMR, Gögenur I. Colonic Stent as Bridge to Surgery for Malignant Obstruction Induces Gene Expressional Changes Associated with a More Aggressive Tumor Phenotype. Ann Surg Oncol 2021; 28:8519-8531. [PMID: 34467497 DOI: 10.1245/s10434-021-10226-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 04/25/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Colonic stent is recommended as a bridge to elective surgery for malignant obstruction to improve short-term clinical outcomes for patients with colorectal cancer. However, since the oncological outcomes remain controversial, this study aimed to investigate the impact of self-expandable metallic stent (SEMS) on the tumor microenvironment. METHODS Patients treated with colonic stent as a bridge to surgery from 2010 to 2015 were identified from hospital records. Tumor biopsies and resected tumor samples of the eligible patients were retrieved retrospectively. Gene expression analysis was performed using the NanoString nCounter PanCancer IO 360 gene expression panel. RESULTS Of the 164 patients identified, this study included 21 who underwent colonic stent placement as a bridge to elective surgery. Gene expression analysis revealed 82 differentially expressed genes between pre- and post-intervention specimens, of which 72 were upregulated and 10 downregulated. Among the significantly upregulated genes, 46 are known to have protumor functions, of which 26 are specifically known to induce tumorigenic mechanisms such as proliferation, migration, invasion, angiogenesis, and inflammation. In addition, ten differentially expressed genes were identified that are known to promote antitumor functions. CONCLUSION SEMS induces gene expressional changes in the tumor microenvironment that are associated with tumor progression in colorectal cancer and may potentiate a more aggressive phenotype. Future studies are warranted to establish optimal timing of surgery after SEMS insertion in patients with obstructive colorectal cancer.
Collapse
Affiliation(s)
- Malene Broholm
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Køge, Denmark. .,Department of Science and Environment, Roskilde University, Roskilde, Denmark.
| | - Thea Helene Degett
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Køge, Denmark
| | - Sara Furbo
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Køge, Denmark
| | - Anne-Marie Kanstrup Fiehn
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Køge, Denmark.,Department of Pathology, Zealand University Hospital, Køge, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mustafa Bulut
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Køge, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Litman
- Department of International Health, Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Jens Ole Eriksen
- Department of Pathology, Zealand University Hospital, Køge, Denmark
| | - Jesper T Troelsen
- Department of Science and Environment, Roskilde University, Roskilde, Denmark
| | - Lise Mette Rahbek Gjerdrum
- Department of Pathology, Zealand University Hospital, Køge, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Ismail Gögenur
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Køge, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
14
|
Liu R, Liu J, Wu P, Yi H, Zhang B, Huang W. Flotillin-2 promotes cell proliferation via activating the c-Myc/BCAT1 axis by suppressing miR-33b-5p in nasopharyngeal carcinoma. Aging (Albany NY) 2021; 13:8078-8094. [PMID: 33744853 PMCID: PMC8034900 DOI: 10.18632/aging.202726] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 02/09/2021] [Indexed: 04/13/2023]
Abstract
Previously, we elucidated the function of flotilin-2 (FLOT2) and branched-chain amino acid transaminase 1(BCAT1) in nasopharyngeal carcinoma (NPC). However, the relationship between FLOT2 and BCAT1 in promoting NPC progression remains unknown. Here, we observed that FLOT2 upregulated BCAT1 expression in NPC cells. Ectopic expression of BCAT1 significantly antagonized the inhibitory effects on NPC cell proliferation induced by FLOT2 depletion. Consequently, BCAT1 knockdown markedly inhibited the pro-proliferative effects of FLOT2 overexpression in NPC cells. FLOT2 expression was positively correlated with BCAT1 expression in NPC tissues and was inversely correlated with the prognosis of NPC patients. Mechanistically, FLOT2 maintains the expression level of c-Myc, a positive transcription factor of BCAT1, and subsequently promote BCAT1 transcription. FLOT2 inhibited miR-33b-5p in NPC cells and attenuated its inhibitory effects on c-Myc. Further, experimental validation of the function of the FLOT2/miR-33b-5p/c-Myc/BCAT1 axis in regulating NPC cell proliferation was performed. Our results revealed that FLOT2 promotes NPC cell proliferation by suppressing miR-33b-5p, to maintain proper levels of c-Myc, and upregulate BCAT1trancription. Therefore, the FLOT2/miR-33b-5p/c-Myc/BCAT1 axis is a potential therapeutic target for NPC.
Collapse
Affiliation(s)
- Rong Liu
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
- College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China
| | - Jie Liu
- Department of Pathology, Changsha Central Hospital, Changsha 410004, China
| | - Ping Wu
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Hong Yi
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Bin Zhang
- Department of Histology and Embryology, School of Basic Medicine, Central South University, Changsha 410013, China
| | - Wei Huang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha 410008, China
| |
Collapse
|
15
|
Luo L, Sun W, Zhu W, Li S, Zhang W, Xu X, Fang D, Grahn THM, Jiang L, Zheng Y. BCAT1 decreases the sensitivity of cancer cells to cisplatin by regulating mTOR-mediated autophagy via branched-chain amino acid metabolism. Cell Death Dis 2021; 12:169. [PMID: 33568627 PMCID: PMC7876012 DOI: 10.1038/s41419-021-03456-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 01/14/2021] [Accepted: 01/21/2021] [Indexed: 12/15/2022]
Abstract
Cisplatin is one of the most effective chemotherapy drugs and is widely used in the treatment of cancer, including hepatocellular carcinoma (HCC) and cervical cancer, but its therapeutic benefit is limited by the development of resistance. Our previous studies demonstrated that BCAT1 promoted cell proliferation and decreased cisplatin sensitivity in HCC cells. However, the exact role and mechanism of how BCAT1 is involved in cisplatin cytotoxicity remain undefined. In this study, we revealed that cisplatin triggered autophagy in cancer cells, with an increase in BCAT1 expression. The cisplatin-induced up-regulation of BCAT1 decreased the cisplatin sensitivity by regulating autophagy through the mTOR signaling pathway. In addition, branched-chain amino acids or leucine treatment inhibited cisplatin- or BCAT1-mediated autophagy and increased cisplatin sensitivity by activating mTOR signaling in cancer cells. Moreover, inhibition of autophagy by chloroquine increased cisplatin sensitivity in vivo. Also, the knockdown of BCAT1 or the administration of leucine activated mTOR signaling, inhibited autophagy, and increased cisplatin sensitivity in cancer cells in vivo. These findings demonstrate a new mechanism, revealing that BCAT1 decreases cisplatin sensitivity in cancer cells by inducing mTOR-mediated autophagy via branched-chain amino acid leucine metabolism, providing an attractive pharmacological target to improve the effectiveness of chemotherapy.
Collapse
Affiliation(s)
- Lifang Luo
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Wenjing Sun
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Weijian Zhu
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Shuhan Li
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Wenqi Zhang
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Xiaohui Xu
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Daoquan Fang
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Tan Hooi Min Grahn
- Division of Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University Hospital, Lund, 22184, Sweden
| | - Lei Jiang
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
| | - Yihu Zheng
- Department of General Surgery, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
| |
Collapse
|
16
|
Peng H, Wang Y, Luo W. Multifaceted role of branched-chain amino acid metabolism in cancer. Oncogene 2020; 39:6747-6756. [PMID: 32978521 PMCID: PMC7606751 DOI: 10.1038/s41388-020-01480-z] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/09/2020] [Accepted: 09/15/2020] [Indexed: 02/06/2023]
Abstract
Metabolic reprogramming fulfils increased nutrient demands and regulates
numerous oncogenic processes in tumors, leading to tumor malignancy.
Branched-chain amino acids (BCAAs, i.e., valine, leucine, and isoleucine)
function as nitrogen donors to generate macromolecules such as nucleotides and
are indispensable for human cancer cell growth. The cell-autonomous and
non-autonomous roles of altered BCAA metabolism have been implicated in cancer
progression and the key proteins in the BCAA metabolic pathway serve as possible
prognostic and diagnostic biomarkers in human cancers. Here we summarize how
BCAA metabolic reprogramming is regulated in cancer cells and how it influences
cancer progression.
Collapse
Affiliation(s)
- Hui Peng
- Department of Pathology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Yingfei Wang
- Department of Pathology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA. .,Department of Neurology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA.
| | - Weibo Luo
- Department of Pathology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA. .,Department of Pharmacology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA.
| |
Collapse
|
17
|
Using sulfuramidimidoyl fluorides that undergo sulfur(VI) fluoride exchange for inverse drug discovery. Nat Chem 2020; 12:906-913. [PMID: 32868886 PMCID: PMC7541551 DOI: 10.1038/s41557-020-0530-4] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 07/23/2020] [Indexed: 12/20/2022]
Abstract
Drug candidates that form covalent linkages with their target proteins have been under-explored compared to conventional counterparts that modulate biological function by reversible binding to proteins, in part due to concerns about off-target reactivity. But toxicity linked to off-target reactivity can be minimized by using latent electrophiles that only become activated towards covalent bond formation upon binding a specific protein. Here, we study sulfuramidimidoyl fluorides (SAFs), a class of weak electrophiles that undergo sulfur(VI) fluoride exchange (SuFEx) chemistry. We show that equilibrium binding of a SAF to a protein can allow nucleophilic attack by a specific amino acid side chain leading to conjugate formation. Sixteen small molecules, each bearing a SAF electrophile, were incubated with human cell lysate, and the protein conjugates formed were identified by affinity chromatography–mass spectrometry. This inverse drug discovery approach identified a compound that covalently binds to, and irreversibly inhibits the activity of PARP1, an important anti-cancer target in living cells.
Collapse
|
18
|
Wang S, Cheng Y, Yang P, Qin G. Silencing of Long Noncoding RNA LINC00324 Interacts with MicroRNA-3200-5p to Attenuate the Tumorigenesis of Gastric Cancer via Regulating BCAT1. Gastroenterol Res Pract 2020; 2020:4159298. [PMID: 32855634 PMCID: PMC7442994 DOI: 10.1155/2020/4159298] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/18/2020] [Accepted: 07/22/2020] [Indexed: 12/14/2022] Open
Abstract
PURPOSE This study was aimed at exploring the effect of long noncoding RNA LINC00324 (LINC00324) on gastric cancer (GC) and the potential molecular mechanisms. METHODS The expression of LINC00324 and miR-3200-5p in GC tissues and cells was detected by qRT-PCR. LINC00324 was silenced in GC cells by transfection of si-LINC00324. Then, the proliferation, migration, and invasion of GC cells were analyzed by MTT, wound healing, and transwell assays, respectively. The interactions between LINC00324 and miR-3200-5p and between miR-3200-5p and BCAT1 were determined by a dual-luciferase reporter and/or RNA pull-down assay. RESULTS The expression of LINC00324 was upregulated in GC cells and tissues, but miR-3200-5p was downregulated. Silencing of LINC00324 inhibited the proliferation, migration, and invasion of GC cells. LINC00324 directly targeted miR-3200-5p, and miR-3200-5p directly targeted BCAT1. si-LINC00324 negatively regulated BCAT1 expression via binding to miR-3200-5p. Furthermore, silencing of LINC00324 reversed the promoting effects of BCAT1 on the proliferation, migration, and invasion of GC cells. CONCLUSION Silencing of LINC00324 inhibited the proliferation, migration, and invasion of GC cells through regulating the miR-3200-5p/BCAT1 axis.
Collapse
Affiliation(s)
- Shuang Wang
- Department of Medical Oncology I, Taian City Central Hospital, No. 29, Longtan Road, Taian City, Shandong Province 271000, China
| | - Yuanyuan Cheng
- Department of Medical Oncology I, Taian City Central Hospital, No. 29, Longtan Road, Taian City, Shandong Province 271000, China
| | - Pingping Yang
- Department of Medical Oncology I, Taian City Central Hospital, No. 29, Longtan Road, Taian City, Shandong Province 271000, China
| | - Guang Qin
- Department of Medical Oncology I, Taian City Central Hospital, No. 29, Longtan Road, Taian City, Shandong Province 271000, China
| |
Collapse
|
19
|
Tolba MF. Revolutionizing the landscape of colorectal cancer treatment: The potential role of immune checkpoint inhibitors. Int J Cancer 2020; 147:2996-3006. [PMID: 32415713 DOI: 10.1002/ijc.33056] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/25/2020] [Accepted: 05/11/2020] [Indexed: 12/21/2022]
Abstract
Colorectal cancer (CRC) represents the third cause of cancer-related mortalities worldwide. The progression of CRC to the metastatic phase significantly compromises the overall survival rates. Despite the advances in the therapeutic protocols, CRC treatment is still challenging. Cancer immunotherapy joined the ranks of surgery, chemotherapy, radiotherapy and targeted therapy as the fifth pillar in the foundation of cancer therapeutics. Interruption of the immunosuppressive signals within the tumor microenvironment and reactivation of antitumor immunity via targeting the molecular immune checkpoints generated promising therapeutic outcomes in several types of hard-to-treat cancers. The year 2017 witnessed the first US Food and Drug Administration (FDA) approval of immune checkpoint inhibitor (ICI) immunotherapy for the management of CRC. The approval was granted to pembrolizumab (anti-PD-1) for the treatment of patients with advanced/metastatic solid malignancies with mismatch-repair deficiency including CRCs. Such natively immunogenic tumors constitute only a minor percentage of all CRCs. Therefore, it is imperative to utilize novel combinatorial regimens to enhance the response of a wider range of CRC tumors to cancer immunotherapy and help in extending the survival rates in patients with advanced/metastatic disease. This review highlights the novel approaches under clinical development to overcome the resistance of CRCs to immunotherapy and improve the therapeutic outcomes.
Collapse
Affiliation(s)
- Mai F Tolba
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Center of Drug Discovery Research and Development, Ain Shams University, Cairo, Egypt
| |
Collapse
|
20
|
Shafei MA, Forshaw T, Davis J, Flemban A, Qualtrough D, Dean S, Perks C, Dong M, Newman R, Conway ME. BCATc modulates crosstalk between the PI3K/Akt and the Ras/ERK pathway regulating proliferation in triple negative breast cancer. Oncotarget 2020; 11:1971-1987. [PMID: 32523652 PMCID: PMC7260123 DOI: 10.18632/oncotarget.27607] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 04/14/2020] [Indexed: 12/12/2022] Open
Abstract
The cytosolic branched chain aminotransferase (BCATc) protein has been found to be highly expressed in breast cancer subtypes, including triple negative breast cancer (TNBC), compared with normal breast tissue. The catabolism of branched-chain amino acids (BCAAs) by BCATc leads to the production of glutamate and key metabolites which further drive the TCA cycle, important for cellular metabolism and growth. Upregulation of BCATc has been associated with increased cell proliferation, cell cycle progression and metastasis in several malignancies including breast, gliomas, ovarian and colorectal cancer but the underlying mechanisms are unclear. As nutrient levels of BCAAs, substrates of BCATc, regulate the PI3K/Akt pathway we hypothesized that increased expression of BCATc would contribute to tumour cell growth through upregulation of the insulin/IGF-1 signalling pathway. This pathway is known to potentiate proliferation and metastasis of malignant cells through the activation of PI3K/Akt and the RAS/ERK signalling cascades. Here we show that knockdown of BCATc significantly reduced insulin and IGF-1-mediated proliferation, migration and invasion of TNBC cells. An analysis of this pathway showed that when overexpressed BCATc regulates proliferation through the PI3K/Akt axis, whilst simultaneously attenuating the Ras/Erk pathway indicating that BCATc acts as a conduit between these two pathways. This ultimately led to an increase in FOXO3a, a key regulator of cell proliferation and Nrf2, which mediates redox homeostasis. Together this data indicates that BCATc regulates TNBC cell proliferation, migration and invasion through the IGF-1/insulin PI3K/Akt pathway, culminating in the upregulation of FOXO3a and Nrf2, pointing to a novel therapeutic target for breast cancer treatment.
Collapse
Affiliation(s)
- Mai Ahmed Shafei
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbor Lane, Bristol, UK
| | - Thomas Forshaw
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbor Lane, Bristol, UK
| | - Jasmine Davis
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbor Lane, Bristol, UK
| | - Arwa Flemban
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbor Lane, Bristol, UK
| | - David Qualtrough
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbor Lane, Bristol, UK
| | - Sarah Dean
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbor Lane, Bristol, UK
| | - Claire Perks
- IGFs and Metabolic Endocrinology Group, University of Bristol, Bristol Medical School, Bristol, UK
| | - Ming Dong
- Department of Chemistry, North Carolina Agricultural and Technical State University, Greensboro, NC, USA
| | - Robert Newman
- Department of Biology, North Carolina Agricultural and Technical State University, Greensboro, NC, USA
| | - Myra Elizabeth Conway
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbor Lane, Bristol, UK
| |
Collapse
|
21
|
Classical and Deep Learning Paradigms for Detection and Validation of Key Genes of Risky Outcomes of HCV. ALGORITHMS 2020. [DOI: 10.3390/a13030073] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Hepatitis C virus (HCV) is one of the most dangerous viruses worldwide. It is the foremost cause of the hepatic cirrhosis, and hepatocellular carcinoma, HCC. Detecting new key genes that play a role in the growth of HCC in HCV patients using machine learning techniques paves the way for producing accurate antivirals. In this work, there are two phases: detecting the up/downregulated genes using classical univariate and multivariate feature selection methods, and validating the retrieved list of genes using Insilico classifiers. However, the classification algorithms in the medical domain frequently suffer from a deficiency of training cases. Therefore, a deep neural network approach is proposed here to validate the significance of the retrieved genes in classifying the HCV-infected samples from the disinfected ones. The validation model is based on the artificial generation of new examples from the retrieved genes’ expressions using sparse autoencoders. Subsequently, the generated genes’ expressions data are used to train conventional classifiers. Our results in the first phase yielded a better retrieval of significant genes using Principal Component Analysis (PCA), a multivariate approach. The retrieved list of genes using PCA had a higher number of HCC biomarkers compared to the ones retrieved from the univariate methods. In the second phase, the classification accuracy can reveal the relevance of the extracted key genes in classifying the HCV-infected and disinfected samples.
Collapse
|
22
|
Li C, Zhang W, Yang H, Xiang J, Wang X, Wang J. Integrative analysis of dysregulated lncRNA-associated ceRNA network reveals potential lncRNA biomarkers for human hepatocellular carcinoma. PeerJ 2020; 8:e8758. [PMID: 32201648 PMCID: PMC7071826 DOI: 10.7717/peerj.8758] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 02/16/2020] [Indexed: 12/16/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is an aggressive cancer with a poor prognosis and a high incidence. The molecular changes and novel biomarkers of HCC need to be identified to improve the diagnosis and prognosis of this disease. We investigated the current research concentrations of HCC and identified the transcriptomics-related biomarkers of HCC from The Cancer Genome Atlas (TGCA) database. Methods We investigated the current research concentrations of HCC using literature metrology analysis for studies conducted from 2008 to 2018. We identified long noncoding RNAs (lncRNAs) that correlated with the clinical features and survival prognoses of HCC from The Cancer Genome Atlas (TGCA) database. Differentially expressed genes (lncRNAs, miRNAs, and mRNAs) were also identified by TCGA datasets in HCC tumor tissues. A lncRNA competitive endogenous RNA (ceRNA) network was constructed from lncRNAs based on intersected lncRNAs. Survival times and the association between the expression levels of the key lncRNAs of the ceRNA network and the clinicopathological characteristics of HCC patients were analyzed using TCGA. Real-time polymerase chain reaction (qRT-PCR) was used to validate the reliability of the results in tissue samples from 20 newly-diagnosed HCC patients. Results Analysis of the literature pertaining to HCC research revealed that current research is focused on lncRNA functions in tumorigenesis and tumor development. A total of 128 HCC dysregulated lncRNAs were identified; 66 were included in the co-expressed ceRNA network. We analyzed survival times and the associations between the expression of 66 key lncRNAs and the clinicopathological features of the HCC patients identified from TCGA. Twenty-six lncRNAs were associated with clinical features of HCC (P < 0.05) and six key lncRNAs were associated with survival time (log-rank test P < 0.05). Six key lncRNAs were selected for the validation of their expression levels in 20 patients with newly diagnosed HCC using qRT-PCR. Consistent fold changes in the trends of up and down regulation between qRT-PCR validation and TCGA proved the reliability of our bioinformatics analysis. Conclusions We used integrative bioinformatics analysis of the TCGA datasets to improve our understanding of the regulatory mechanisms involved with the functional features of lncRNAs in HCC. The results revealed that lncRNAs are potential diagnostic and prognostic biomarkers of HCC.
Collapse
Affiliation(s)
- Chengyun Li
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, Gansu province, China
| | - Wenwen Zhang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, Gansu province, China
| | - Hanteng Yang
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, Gansu province, China
| | - Jilian Xiang
- Department of gastroenterology, Third People's Hospital of Gansu province, Lanzhou, Gansu province, China
| | - Xinghua Wang
- Department of gastrointestinal surgery, Gansu Wuwei Tumor Hospital, Wuwei, Gansu province, China
| | - Junling Wang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, Gansu province, China
| |
Collapse
|
23
|
Zou H, Liao M, Xu W, Yao R, Liao W. Data mining of the expression and regulatory role of BCAT1 in hepatocellular carcinoma. Oncol Lett 2019; 18:5879-5888. [PMID: 31788061 PMCID: PMC6865021 DOI: 10.3892/ol.2019.10932] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/06/2019] [Indexed: 12/24/2022] Open
Abstract
Branched chain amino acid transaminase 1 (BCAT1) catalyzes the production of glutamates and branched-chain α-ketoacids from branched chain amino acids, and a normal BCAT1 expression is associated with tumorigenesis. Sequencing data from public databases, including The Cancer Genome Atlas, was used to analyze BCAT1 expression and regulation networks for hepatocellular carcinoma (HCC). Expression and methylation were assessed using UALCAN analysis, and data from multiple datasets concerning the BCAT1 expression level and associated survival rates were further analyzed using HCCDB; interaction networks of biological function were constructed using GeneMANIA. LinkedOmics was used to indicate correlations between BCAT1 and any identified differentially expressed genes. Gene enrichment analysis of BCAT-associated genes was conducted using the Web-based Gene SeT AnaLysis Toolkit. The expression levels of BCAT1 were increased in patients with HCC and in most cases, the level of BCAT1 promoter methylation was reduced. Interaction network analysis suggested that BCAT1 was involved in ‘metabolism’, ‘carcinogenesis’ and the ‘immune response’ via numerous cancer-associated pathways. The present study revealed the expression patterns and potential function networks of BCAT1 in HCC, providing insights for future research into the role of BCAT1 in hepatocarcinogenesis. In addition, the study provided researchers with a way to analyze the genes of interest so they can continue their research in the right direction.
Collapse
Affiliation(s)
- Haifan Zou
- Laboratory of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China.,Scientific Experiment Center, Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| | - Minjun Liao
- Laboratory of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China.,Clinical School of Medicine, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Wentao Xu
- Laboratory of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| | - Renzhi Yao
- Laboratory of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| | - Weijia Liao
- Laboratory of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| |
Collapse
|
24
|
Zeng B, Zhang X, Zhao J, Wei Z, Zhu H, Fu M, Zou D, Feng Y, Luo H, Lei Y. The role of DNMT1/hsa-miR-124-3p/BCAT1 pathway in regulating growth and invasion of esophageal squamous cell carcinoma. BMC Cancer 2019; 19:609. [PMID: 31226958 PMCID: PMC6588861 DOI: 10.1186/s12885-019-5815-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 06/10/2019] [Indexed: 01/16/2023] Open
Abstract
Background Esophageal squamous cell carcinoma (ESCC) is the major subtype of esophageal cancer with high aggressiveness and poor prognosis. There is an urgent need for understanding the molecular mechanism underlying the development and progression of ESCC. Methods ESCC tissues and corresponding non-neoplastic tissues were collected. The expression and function of miR-124-3p and BCAT1 in two cell lines KYSE-150 and Eca109 were determined. Results We show downregulation of miR-124-3p expression in ESCC tissues, which is highly correlated with proliferation and migration of ESCC cell lines KYSE-150 and Eca109. miR-124-3p show high correlation with TNM stage and differentiation grade. Furthermore, miR-124-3p directly targets mRNA 3’UTR region of BCAT1, which results in upregulation of BCAT1 expression as observed in ESCC tissues and cell lines. Also, our data indicates that BCAT1 high expression is strongly linked to the disease-free survival, tumor size, pathologic stage, T classification and differentiation grade. On the other hand, we clarified the upstream mechanism regulating miR-124-3p expression in ESCC, which involves in the hypermethylation-silencing regulation mediated by DNA methyltransferase 1(DNMT1), which is of high expression in ESCC tissues and cell lines in the present study. In addition, DNMT1 knockdown or inhibition of DNMT1 function contributes to downregulation of miR-124-3p and BCAT1 expression. Conclusions Our study thus clarifies a new mechanism that DNMT1/miR-124/BCAT1 axis regulates the development and progression of ESCC.
Collapse
Affiliation(s)
- Bo Zeng
- Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xin Zhang
- Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jingling Zhao
- Department of Burns, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhewei Wei
- Department of Gastrointestinal Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Haoshuai Zhu
- Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Minyi Fu
- Surgical and anesthesia center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dawei Zou
- Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yanfen Feng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China. .,Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, China. .,, Guangzhou, China.
| | - Honghe Luo
- Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China. .,, Guangzhou, China.
| | - Yiyan Lei
- Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China. .,, Guangzhou, China.
| |
Collapse
|
25
|
Abstract
Oncogenic signalling and metabolic alterations are interrelated in cancer cells. mTOR, which is frequently activated in cancer, controls cell growth and metabolism. mTOR signalling regulates amino acid, glucose, nucleotide, fatty acid and lipid metabolism. Conversely, metabolic inputs, such as amino acids, activate mTOR. In this Review, we discuss how mTOR signalling rewires cancer cell metabolism and delineate how changes in metabolism, in turn, sustain mTOR signalling and tumorigenicity. Several drugs are being developed to perturb cancer cell metabolism. However, their efficacy as stand-alone therapies, similar to mTOR inhibitors, is limited. Here, we discuss how the interdependence of mTOR signalling and metabolism can be exploited for cancer therapy.
Collapse
Affiliation(s)
| | - Sujin Park
- Biozentrum, University of Basel, Basel, Switzerland
| | | |
Collapse
|
26
|
Wang P, Wu S, Zeng X, Zhang Y, Zhou Y, Su L, Lin W. BCAT1 promotes proliferation of endometrial cancer cells through reprogrammed BCAA metabolism. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:5536-5546. [PMID: 31949641 PMCID: PMC6963089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 10/25/2018] [Indexed: 06/10/2023]
Abstract
Branched-chain amino acid aminotransferase 1 (BCAT1) enzyme is an aminotransferase of glutamate and branched-chain amino acids (BCAAs), which is required for survival of various cancers. However, the role of BCAT1 in human endometrial cancer (EC) remains unknown. We analyzed the expression of BCAT1 in endometrial lesions using IHC. After BCAT1 gene knockdown and activity inhibition, cell proliferation, apoptosis, and metabolism were detected using CCK-8 assay, flow cytometry, and LC-MS/MS analysis. We analyzed molecular signature characteristics to understand how BCAT1 promotes cell proliferation. In this study, we demonstrated a significant increase in BCAT1 expression from normal endometrium to atypical endometrial hyperplasia (AEH) and then to EC, and the expression of BCAT1 in EC samples was related to tumor grade, FIGO stage and lymph node metastasis. Next, cell proliferation was markedly inhibited by lentiviral BCAT1 knockdown or Gbp treatment, but this had little effect on apoptosis rate. Further, BCAT1 knockdown resulted in 31.2% and 33.3% decreases in the amount of intracellular isoleucine and leucine produced, respectively, relative to a control. BCAT1 knockdown or activity inhibition resulted in a decrease of pS6K, a downstream target kinase of mTORC1. In conclusion, our study showed that BCAT1 is essential for EC progression and to increase EC cell proliferation through the production of BCAAs to activate the mTORC1 pathway, providing ideas for clinicians to identify metabolism-based targeted approaches for patients with EC.
Collapse
Affiliation(s)
- Ping Wang
- West China Women’s and Children’s HospitalChengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of EducationChengdu, Sichuan, China
| | - Shouheng Wu
- West China Women’s and Children’s HospitalChengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of EducationChengdu, Sichuan, China
| | - Xiaofeng Zeng
- Guangzhou First People’s HospitalGuangzhou, Guangdong, China
| | - Yaqing Zhang
- The Affiliated Hospital of Southwest Medical UniversityLuzhou, Sichuan, China
| | - Ying Zhou
- West China Women’s and Children’s HospitalChengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of EducationChengdu, Sichuan, China
| | - Liuli Su
- West China Women’s and Children’s HospitalChengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of EducationChengdu, Sichuan, China
| | - Wei Lin
- West China Women’s and Children’s HospitalChengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of EducationChengdu, Sichuan, China
| |
Collapse
|
27
|
Wegermann K, Henao R, Diehl AM, Murphy SK, Abdelmalek MF, Moylan CA. Branched chain amino acid transaminase 1 (BCAT1) is overexpressed and hypomethylated in patients with non-alcoholic fatty liver disease who experience adverse clinical events: A pilot study. PLoS One 2018; 13:e0204308. [PMID: 30265706 PMCID: PMC6161885 DOI: 10.1371/journal.pone.0204308] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 09/05/2018] [Indexed: 12/22/2022] Open
Abstract
Background and objectives Although the burden of non-alcoholic fatty liver disease (NAFLD) continues to increase worldwide, genetic factors predicting progression to cirrhosis and decompensation in NAFLD remain poorly understood. We sought to determine whether gene expression profiling was associated with clinical decompensation and death in patients with NAFLD, and to assess whether altered DNA methylation contributes to these changes in gene expression. Methods We performed a retrospective analysis of 86 patients in the Duke NAFLD Clinical Database and Biorepository with biopsy-proven NAFLD whose liver tissue was previously evaluated for gene expression and DNA methylation using array based technologies. We assessed the prospective development of liver and cardiovascular disease related outcomes, including hepatic decompensation as identified by the development of ascites, hepatic encephalopathy, hepatocellular carcinoma, or variceal bleeding as well as stroke and myocardial infarction via medical chart review. Results Of the 86 patients, 47 had F0-F1 fibrosis and 39 had F3-F4 fibrosis at index liver biopsy. Gene expression probe sets (n = 54,675) were analyzed; 42 genes showed significant differential expression (p<0.05) and a two-fold change in expression between patients with and without any outcome. Two expression probes of the branched chain amino-acid transaminase 1 (BCAT1) gene were upregulated (p = 0.02; fold change 2.1 and 2.2 respectively) in patients with a clinical outcome. Methylation of three of the 34 BCAT1 CpG methylation probes were significantly inversely correlated with BCAT1 expression specific to the probes predictive of clinical deterioration. Conclusion We found differential gene expression, correlated to changes in DNA methylation, at multiple BCAT1 loci in patients with cardiovascular outcomes and/or hepatic decompensation. BCAT1 catalyzes the transformation of alpha-ketoglutarate to glutamate and has been linked to the presence and severity of NAFLD, possibly through derangements in the balance between glutamate and alpha-ketoglutarate. Given the potential for BCAT1 to identify patients at risk for poor outcomes, and the potential therapeutic implications, these results should be validated in larger prospective studies.
Collapse
Affiliation(s)
- Kara Wegermann
- Division of Gastroenterology, Department of Medicine, Duke University Health System, Durham, NC, United States of America
| | - Ricardo Henao
- Biostatistics and Bioinformatics, Duke University, Durham, NC, United States of America
| | - Anna Mae Diehl
- Division of Gastroenterology, Department of Medicine, Duke University Health System, Durham, NC, United States of America
| | - Susan K. Murphy
- Department of Obstetrics and Gynecology, Duke University Health System, Durham, NC, United States of America
| | - Manal F. Abdelmalek
- Division of Gastroenterology, Department of Medicine, Duke University Health System, Durham, NC, United States of America
| | - Cynthia A. Moylan
- Division of Gastroenterology, Department of Medicine, Duke University Health System, Durham, NC, United States of America
- Department of Medicine, Durham Veterans Affairs Health System, Durham, NC, United States of America
- * E-mail:
| |
Collapse
|
28
|
Ji D, Jiang C, Zhang L, Liang N, Jiang T, Yang B, Liang H. LncRNA CRNDE promotes hepatocellular carcinoma cell proliferation, invasion, and migration through regulating miR-203/ BCAT1 axis. J Cell Physiol 2018; 234:6548-6560. [PMID: 30230527 DOI: 10.1002/jcp.27396] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 08/17/2018] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To investigate the impact of long noncodingRNA (lncRNA) colorectal neoplasia differentially expressed (CRNDE) on hepatocellular cancer (HCC) cell propagation, invasion, and migration by mediating miR-203/ BCAT1 axis. METHODS Microarray analysis was based on 25 pairs of HCC cancerous tissues and adjacent tissues. The expression levels of CRNDE, miR-203, and BCAT1 in HCC tissues were analyzed by quantitative real-time polymerase chain reaction (qRT-PCR). The liver cell line L-02 and HCC cell lines HepG2 and Huh-7 were utilized to assess the regulatory effects of CRNDE and miR-203 on HCC progression in vitro. Western blot was used to qualify BCAT1 protein expression level. Cell proliferation and apoptosis were evaluated using CCK-8 and flow cytometry analysis, whereas cell invasion and migration assay were performed by the Transwell assay. The relationship among CRNDE, miR-203, and BCAT1 was validated by dual luciferase assay. Tumor Xenograft study was established to verify the pathological effect of CRNDE on HCC development in vivo. RESULTS The expression levels of the CRNDE and BCAT1 were upregulated in HCC tissues and cells, whereas miR-203 was downregulated in HCC. Knockdown of CRNDE or miR-203 overexpression would inhibit HCC cell propagation and metastasis, and induced cell apoptosis. Moreover, miR-203 was negatively correlated with CRNDE, the same as miR-203 with BCAT1. Dual luciferase assay showed that miR-203 was an inhibitory target of CRNDE, and BCAT1 was directly targeted by miR-203 as well. CONCLUSION LncRNA CRNDE could enhance HCC tumorgenesis by sponging miR-203 and mediating BCAT1. LncRNA CRNDE might facilitate HCC cell propagation, invasiveness, and migration through regulating miR-203/ BCAT1 axis.
Collapse
Affiliation(s)
- Degang Ji
- Department of Hepatopancreatobiliary Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Chengwei Jiang
- Department of Pathology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Lirong Zhang
- Department of Pathology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Na Liang
- Office of Surgical Nursing, Changchun Medical College, Changchun, Jilin, China
| | - Tiechao Jiang
- Department of Cardiovascular Medicine, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Bin Yang
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Haiying Liang
- Department of Blood transfusion, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| |
Collapse
|
29
|
Chen YY, Ho HL, Lin SC, Hsu CY, Ho DMT. Loss of BCAT1 Expression is a Sensitive Marker for IDH-Mutant Diffuse Glioma. Neurosurgery 2018; 85:335-342. [DOI: 10.1093/neuros/nyy338] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 06/25/2018] [Indexed: 12/19/2022] Open
Abstract
Abstract
BACKGROUND
IDH mutation is an important prognostic factor of diffuse astrocytomas. Although the majority of IDH mutations could be identified by immunohistochemical (IHC) stain for R132H-mutant IDH1, DNA sequencing would be required for IHC negative cases to determine their IDH mutation status. This approach is not cost-effective for tumors with low IDH mutation rates.
OBJECTIVE
To investigate whether BCAT1 could be used as a surrogate marker for IDH mutations, because BCAT1 is an enzyme related to IDH genes.
METHODS
A group of 120 anaplastic astrocytomas were immunostained for BCAT1, ATRX, and R132H-mutant IDH1. Staining results correlated with the results of DNA sequencing of IDH1/IDH2.
RESULTS
DNA sequencing showed IDH1/2 mutations in 50.8% of cases of which 73.8% had IDH1 R132H mutation. Several IDH1 noncodon 132 mutations, ie, G97D, S122N, G123E, I130K, and G131S, which had uncertain prognostic significance, were identified. IHC stain for R132H-mutant IDH1 identified 93.3% of IDH1 R132H mutations and 70.5% of all IDH mutations. BCAT1 loss was seen in 65.8% of cases, its sensitivity to identify IDH mutations was 96.7%. The sensitivity reached 100% for IDH1 codon 132 and IDH2 codon 172 mutations.
CONCLUSION
Positive BCAT1 stain could be used to exclude diffuse gliomas with IDH1 codon 132 and IDH2 codon 172 mutations. Selecting cases with negative BCAT1 and R132H-mutant IDH1 staining for DNA sequencing of IDH1/2 genes could improve the cost-effectiveness of detecting IDH mutations particularly in tumors with low IDH mutation rates, and confine the need of 1p/19q assay in IDH-mutant tumors.
Collapse
Affiliation(s)
- Yen-Ying Chen
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hsiang-Ling Ho
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Shih-Chieh Lin
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Chih-Yi Hsu
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
- College of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
| | - Donald Ming-Tak Ho
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Department of Pathology and Laboratory Medicine, Cheng Hsin General Hospital, Taipei, Taiwan
| |
Collapse
|
30
|
Wang L, Chen C, Feng S, Tian J. TIPE‑2 suppresses growth and aggressiveness of hepatocellular carcinoma cells through downregulation of the phosphoinositide 3‑kinase/AKT signaling pathway. Mol Med Rep 2018; 17:7017-7026. [PMID: 29568863 PMCID: PMC5928656 DOI: 10.3892/mmr.2018.8789] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 12/14/2017] [Indexed: 12/13/2022] Open
Abstract
Rapid proliferation and migration are the main features of hepatocellular carcinoma (HCC) cells, which serve an essential role in carcinogenesis and are a hallmark of cancer therapy resistance. Previous studies have reported that tumor necrosis factor-α-induced protein-8 like-2 (TIPE-2) is involved in cancer initiation and the progression of HCC. The present study aimed to clarify the role of TIPE-2 in HCC carcinogenesis, growth and aggressiveness. The effects of TIPE-2 on HCC were determined using colony forming and cell cycle analyses. Cell apoptosis, and growth and aggressiveness of HCC cells, were investigated following TIPE-2 treatment. Treatment with TIPE-2 markedly suppressed HCC cell proliferation and increased the number of cells in S phase of the cell cycle. The results demonstrated that TIPE-2 significantly inhibited growth, migration and invasion of HCC cells via the downregulation of tumor metastasis-associated genes. Flow cytometric analysis indicated that TIPE-2 promoted apoptosis of HCC cells via regulation of apoptosis-associated gene transcription. In addition, TIPE-2 administration downregulated the expression of phosphoinositide 3-kinase (PI3K) and protein kinase B (AKT) in HCC cells. In addition, TIPE-2 selectively decreased neuroblastoma Ras viral oncogene and p27 expression in HCC cells. In vivo assays revealed that TIPE-2 significantly inhibited tumor growth and prolonged animal survival by promoting apoptosis of tumor cells. The results of the present study indicated that TIPE-2 acts as an inhibitor of HCC cell growth and aggressiveness, and promotes apoptosis, thus suggesting that TIPE-2 may inhibit the metastasis-associated PI3K/AKT signaling cascade and may arrest the tumor cell cycle. These findings provide a potential molecular mechanism by which TIPE-2 promotes apoptosis of HCC cells.
Collapse
Affiliation(s)
- Lin Wang
- Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin Geriatrics Institute, Tianjin 300052, P.R. China
| | - Chen Chen
- Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin Geriatrics Institute, Tianjin 300052, P.R. China
| | - Shuzhi Feng
- Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin Geriatrics Institute, Tianjin 300052, P.R. China
| | - Jianli Tian
- Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin Geriatrics Institute, Tianjin 300052, P.R. China
| |
Collapse
|
31
|
Xu Y, Yu W, Yang T, Zhang M, Liang C, Cai X, Shao Q. Overexpression of BCAT1 is a prognostic marker in gastric cancer. Hum Pathol 2018; 75:41-46. [PMID: 29447920 DOI: 10.1016/j.humpath.2018.02.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 02/01/2018] [Accepted: 02/02/2018] [Indexed: 01/08/2023]
Abstract
As one form of branched-chain amino-acid transaminase (BCAT) enzymes, It has been found that up-regulation of BCAT1 is associated with poor prognosis in numerous types of tumors, but studies on the role of BCAT1 expression in gastric cancer (GC) are rare. The aims of this study were to detect BCAT1 expression in GC and to analyze its association with prognosis of GC patients. Microarray experiments were performed on the Affymetrix U133 plus 2.0 GeneChip Array. The protein and messenger RNA levels of BCAT1 were validated by immunohistochemistry and real-time quantitative polymerase chain reaction in GC tissues and adjacent noncancerous tissues. Our study shows that the expression of BCAT1 significantly increased in human GC. Furthermore, it can also be found that BCAT1 overexpression was associated with TNM stage (P < .05), local invasion (P < .05), Lauren type (P < .05), tumor classification (P < .05), lymph node metastasis (P < .05), and presence of distant metastasis (P < .05). Kaplan-Meier survival analysis revealed that high BCAT1 expression predicted significantly worse overall survival (P < .05), whereas multivariate Cox regression analysis showed that BCAT1 affects GC independently. In conclusion, up-regulation of BCAT1 indicated a poor survival rate of GC and may serve as a useful marker for predicting the outcome of patients with GC.
Collapse
Affiliation(s)
- Yuan Xu
- Department of Gastrointestinal Surgery, Ningbo City Medical Center Lihuili Hospital, Ningbo, 315000, PR China.
| | - Weiming Yu
- Department of Gastrointestinal Surgery, Ningbo City Medical Center Lihuili Hospital, Ningbo, 315000, PR China
| | - Taotao Yang
- Department of Pharmacy, Ningbo City Medical Center Lihuili Hospital, Ningbo, 315000, PR China
| | - Miaozun Zhang
- Department of Gastrointestinal Surgery, Ningbo City Medical Center Lihuili Hospital, Ningbo, 315000, PR China
| | - Chao Liang
- Department of Gastrointestinal Surgery, Ningbo City Medical Center Lihuili Hospital, Ningbo, 315000, PR China
| | - Xianlei Cai
- Department of Gastrointestinal Surgery, Ningbo City Medical Center Lihuili Hospital, Ningbo, 315000, PR China
| | - Qinshu Shao
- Department of Gastrointestinal Surgery, Zhejiang Provincial People's Hospital, Hangzhou, 310014, PR China
| |
Collapse
|
32
|
赖 爱, 谢 斌. BCAT1促进肿瘤发生发展的研究进展. Shijie Huaren Xiaohua Zazhi 2017; 25:1536-1542. [DOI: 10.11569/wcjd.v25.i17.1536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
支链氨基酸转移酶1(branched-chain amino acid transaminase 1, BCAT1)是催化支链氨基酸代谢的关键酶. 国内外研究已证实BCAT1在多种恶性肿瘤中呈现高表达, 并提示与肿瘤细胞增殖、转移及侵袭密切相关. 本文拟就BCAT1的理化性质、生物学功能及其与肿瘤发生、发展的相关研究进行简要综述, 为进一步研究BCAT1与恶性肿瘤的关系提供线索.
Collapse
|
33
|
Ren T, Zhu L, Cheng M. CXCL10 accelerates EMT and metastasis by MMP-2 in hepatocellular carcinoma. Am J Transl Res 2017; 9:2824-2837. [PMID: 28670372 PMCID: PMC5489884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Accepted: 03/22/2017] [Indexed: 06/07/2023]
Abstract
Human malignant hepatocellular carcinoma (HCC) is a common tumor, which severely threatens human health and shortens longevity. The poor prognosis of HCC is primarily attributed to distant metastases. C-X-C motif chemokine 10 (CXCL10) regulates the control of several cellular and developmental processes including tumor cell proliferation, apoptosis, and cell metastasis. Previous studies have confirmed that CXCL10 functions as an oncogene in several cancers. However, the expression and biological functions of CXCL10 in HCC, especially with regard to metastasis, need further investigation. In this study, CXCL10 was found to be over expressed in invasive HCC cells and HCC clinical samples. While the over-expression of CXCL10 enhanced migration, invasion, and metastasis of HCC cells in vitro as well as in vivo, silencing of CXCL10 resulted in inhibition of HCC cell metastasis. Further, CXCL10 was found to accelerate epithelial-mesenchymal transition of HCC cells. The microarray analysis indicated that matrix metallopeptidase-2 (MMP-2) functions as a downstream factor of CXCL10. This study demonstrates that CXCL10 partakes in the metastasis of HCC by activating MMP-2 expression.
Collapse
Affiliation(s)
- Tingting Ren
- Department of Biochemistry, Affiliated Hospital of Guiyang Medical College28 Guiyi Street, Guiyang 550004, Guizhou, China
| | - Lili Zhu
- The Affiliated Baiyun Hospital of Guizhou Medical UniversityGuiyang 550004, Guizhou, China
| | - Mingliang Cheng
- Department of Infectious Diseases, Affiliated Hospital of Guiyang Medical College28 Guiyi Street, Guiyang 550004, Guizhou, China
| |
Collapse
|