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Jin X, Yang S, Lu X, Chen X, Dai W. Increased expression of REG3A promotes tumorigenic behavior in triple negative breast cancer cells. Breast Cancer Res 2024; 26:92. [PMID: 38840145 PMCID: PMC11151570 DOI: 10.1186/s13058-024-01845-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/17/2024] [Indexed: 06/07/2024] Open
Abstract
BACKGROUND Identifying new targets in triple negative breast cancer (TNBC) remains critical. REG3A (regenerating islet-derived protein 3 A), a calcium-dependent lectin protein, was thoroughly investigated for its expression and functions in breast cancer. METHODS Bioinformatics and local tissue analyses were employed to identify REG3A expression in breast cancer. Genetic techniques were employed to modify REG3A expression, and the resulting effects on the behaviors of breast cancer cells were examined. Subcutaneous xenograft models were established to investigate the involvement of REG3A in the in vivo growth of breast cancer cells. RESULTS Analysis of the TCGA database uncovered increased REG3A levels in human breast cancer tissues. Additionally, REG3A mRNA and protein levels were elevated in TNBC tissues of locally treated patients, contrasting with low expression in adjacent normal tissues. In primary human TNBC cells REG3A shRNA notably hindered cell proliferation, migration, and invasion while triggering caspase-mediated apoptosis. Similarly, employing CRISPR-sgRNA for REG3A knockout showed significant anti-TNBC cell activity. Conversely, REG3A overexpression bolstered cell proliferation and migration. REG3A proved crucial for activating the Akt-mTOR cascade, as evidenced by decreased Akt-S6K1 phosphorylation upon REG3A silencing or knockout, which was reversed by REG3A overexpression. A constitutively active mutant S473D Akt1 (caAkt1) restored Akt-mTOR activation and counteracted the proliferation inhibition and apoptosis induced by REG3A knockdown in breast cancer cells. Crucially, REG3A played a key role in maintaining mTOR complex integrity. Bioinformatics identified zinc finger protein 680 (ZNF680) as a potential REG3A transcription factor. Knocking down or knocking out ZNF680 reduced REG3A expression, while its overexpression increased it in primary breast cancer cells. Additionally, enhanced binding between ZNF680 protein and the REG3A promoter was observed in breast cancer tissues and cells. In vivo, REG3A shRNA significantly inhibited primary TNBC cell xenograft growth. In REG3A-silenced xenograft tissues, reduced REG3A levels, Akt-mTOR inhibition, and activated apoptosis were evident. CONCLUSION ZNF680-caused REG3A overexpression drives tumorigenesis in breast cancer possibly by stimulating Akt-mTOR activation, emerging as a promising and innovative cancer target.
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Affiliation(s)
- Xiaoxia Jin
- Department of Pathology, Affiliated Tumor Hospital of Nantong University, No.30 North Tongyang Road, Pingchao, Nantong, 226361, Jiangsu, China
| | - Shuyun Yang
- Department of Pathology, Affiliated Tumor Hospital of Nantong University, No.30 North Tongyang Road, Pingchao, Nantong, 226361, Jiangsu, China
| | - Xiaoyun Lu
- Department of Pathology, Affiliated Tumor Hospital of Nantong University, No.30 North Tongyang Road, Pingchao, Nantong, 226361, Jiangsu, China
| | - Xudong Chen
- Department of Pathology, Affiliated Tumor Hospital of Nantong University, No.30 North Tongyang Road, Pingchao, Nantong, 226361, Jiangsu, China.
| | - Wencheng Dai
- Department of Head and Neck Surgery, Affiliated Tumor Hospital of Nantong University, No.30 North Tongyang Road, Pingchao, Nantong, 226361, Jiangsu, China.
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Xu KY, Li M, Yu WH, Li X, Zeng Y, Xie FL, Zhou YH, Xu PS, Pu CC, Xie BB, Yu LT, Luo C. Reg3A Overexpression Facilitates Hepatic Metastasis by Altering Cell Adhesion in LoVo Colon Cancer Cells. DNA Cell Biol 2024; 43:298-310. [PMID: 38771249 DOI: 10.1089/dna.2024.0029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024] Open
Affiliation(s)
- Ke-Yi Xu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Mao Li
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Wei-Hong Yu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Xin Li
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Yuan Zeng
- Department of Clinical Pharmacology and Bioanalytics, Pfizer (China) Research and Development Co., Ltd., Shanghai, China
| | - Fei-Lu Xie
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Yi-Han Zhou
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Pin-Shen Xu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Chun-Cheng Pu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Bing-Bing Xie
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Lu-Ting Yu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Chen Luo
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
- Antibody Engineering Laboratory, China Pharmaceutical University, Nanjing, China
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Jiang L, Liu Y, Liu M, Zheng Y, Chen L, Shan F, Ji J, Cao Y, Kai H, Kang X. REG3A promotes proliferation and DDP resistance of ovarian cancer cells by activating the PI3K/Akt signaling pathway. ENVIRONMENTAL TOXICOLOGY 2024; 39:85-96. [PMID: 37665173 DOI: 10.1002/tox.23952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 07/15/2023] [Accepted: 08/20/2023] [Indexed: 09/05/2023]
Abstract
This study explored the effect of Regenerating Islet-Derived 3-Alpha (REG3A) on ovarian cancer (OC) progression. REG3A expression was scrutinized in clinical tissues of 97 OC cases by quantitative real-time polymerase chain reaction (qRT-PCR). REG3A expression in OC cells and cisplatin (DDP) resistance OC cells was regulated by transfection. LY294002 (10 μM, inhibitor of the PI3K/Akt signaling pathway) was used to treat OC cells and DDP resistance OC cells. Cell counting kit-8 and methyl-thiazolyl-tetrazolium assays were applied for proliferation and DDP resistance detection. Flow cytometry was utilized for cell cycle and apoptosis analysis. The effect of REG3A on the OC cell in vivo growth was researched by establishing xenograft tumor model via using nude mice using nude mice. The expression of genes in clinical samples, cells and xenograft tumor tissues was investigated by qRT-PCR, Western blot and immunohistochemistry. As a result, REG3A was over-expressed in OC patients and cells, associating with dismal prognosis of patients. REG3A knockdown repressed proliferation, DDP resistance, induced cell cycle arrest and apoptosis of OC cells, and reduced the expression MDR-1, Cyclin D1, Cleaved caspase 3 proteins and the PI3K/Akt signaling pathway activity in OC cells. LY294002 treatment abrogated the promotion effect of REG3A on OC cell proliferation, apoptosis inhibition and DDP resistance. REG3A knockdown suppressed the in vivo growth of OC cells. Thus, REG3A promoted proliferation and DDP resistance of OC cells by activating the PI3K/Akt signaling pathway. REG3A might be a promising target for the clinical treatment of OC.
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Affiliation(s)
- Lingling Jiang
- Department of Obstetrics and Gynecology, Affiliated Hospital 2 of Nantong University, Nantong, China
| | - Yinglei Liu
- Department of Obstetrics and Gynecology, Affiliated Hospital 2 of Nantong University, Nantong, China
| | - Manhua Liu
- Department of Obstetrics and Gynecology, Affiliated Hospital 2 of Nantong University, Nantong, China
| | - Yanli Zheng
- Department of Obstetrics and Gynecology, Affiliated Hospital 2 of Nantong University, Nantong, China
| | - Liping Chen
- Department of Obstetrics and Gynecology, Affiliated Hospital 2 of Nantong University, Nantong, China
| | - Feng Shan
- Department of Obstetrics and Gynecology, Affiliated Hospital 2 of Nantong University, Nantong, China
| | - Jinlong Ji
- Department of Obstetrics and Gynecology, Affiliated Hospital 2 of Nantong University, Nantong, China
| | - Yang Cao
- Department of Obstetrics and Gynecology, Affiliated Hospital 2 of Nantong University, Nantong, China
| | - Haili Kai
- Department of Obstetrics and Gynecology, Affiliated Hospital 2 of Nantong University, Nantong, China
| | - Xinyi Kang
- Department of Obstetrics and Gynecology, Affiliated Hospital 2 of Nantong University, Nantong, China
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Li WS, Chen TJ, Lee SW, Yang CC, Tian YF, Kuo YH, Tsai HH, Wu LC, Yeh CF, Shiue YL, Chou CL, Lai HY. REG3A overexpression functions as a negative predictive and prognostic biomarker in rectal cancer patients receiving CCRT. Histol Histopathol 2024; 39:91-104. [PMID: 37042618 DOI: 10.14670/hh-18-615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
BACKGROUND Concurrent chemoradiotherapy (CCRT) is suggested before resection surgery in the control of rectal cancer. Unfortunately, treatment outcomes are widely variable and highly patient-specific. Notably, rectal cancer patients with distant metastasis generally have a much lower survival rate. Accordingly, a better understanding of the genetic background of patient cohorts can aid in predicting CCRT efficacy and clinical outcomes for rectal cancer before distant metastasis. METHODS A published transcriptome dataset (GSE35452) (n=46) was utilized to distinguish prospective genes concerning the response to CCRT. We recruited 172 rectal cancer patients, and the samples were collected during surgical resection after CCRT. Immunohistochemical (IHC) staining was performed to evaluate the expression level of regenerating family member 3 alpha (REG3A). Pearson's chi-squared test appraised the relevance of REG3A protein expression to clinicopathological parameters. The Kaplan-Meier method was utilized to generate survival curves, and the log-rank test was performed to compare the survival distributions between two given groups. RESULTS Employing a transcriptome dataset (GSE35452) and focusing on the inflammatory response (GO: 0006954), we recognized that REG3A is the most significantly upregulated gene among CCRT nonresponders (log2 ratio=1.2472, p=0.0079). Following IHC validation, high immunoexpression of REG3A was considerably linked to advanced post-CCRT tumor status (p<0.001), post-CCRT lymph node metastasis (p=0.042), vascular invasion (p=0.028), and low-grade tumor regression (p=0.009). In the multivariate analysis, high immunoexpression of REG3A was independently correlated with poor disease-specific survival (DSS) (p=0.004) and metastasis-free survival (MeFS) (p=0.045). The results of the bioinformatic analysis also supported the idea that REG3A overexpression is implicated in rectal carcinogenesis. CONCLUSION In the current study, we demonstrated that REG3A overexpression is correlated with poor CCRT effectiveness and inferior patient survival in rectal cancer. The predictive and prognostic utility of REG3A expression may direct patient stratification and decision-making more accurately for those patients.
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Affiliation(s)
- Wan-Shan Li
- Department of Pathology, Chi Mei Medical Center, Tainan, Taiwan
- Department of Medical Technology, Chung Hwa University of Medical Technology, Tainan, Taiwan
- Institute of Biomedical Science, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Tzu-Ju Chen
- Department of Medical Technology, Chung Hwa University of Medical Technology, Tainan, Taiwan
- Department of Clinical Pathology, Chi Mei Medical Center, Tainan, Taiwan
| | - Sung-Wei Lee
- Department of Radiation Oncology, Chi Mei Medical Center, Liouying, Taiwan
| | - Ching-Chieh Yang
- Department of Radiation Oncology, Chi Mei Medical Center, Tainan, Taiwan
- Department of Pharmacy, Chia-Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Yu-Feng Tian
- Division of Colon and Rectal Surgery, Department of Surgery, Chi Mei Medical Center, Tainan, Taiwan
| | - Yu-Hsuan Kuo
- Division of Hematology and Oncology, Department of Internal Medicine, Chi-Mei Medical Center, Tainan, Taiwan
- College of Pharmacy and Science, Chia Nan University, Tainan, Taiwan
| | - Hsin-Hwa Tsai
- Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan
- Trans-Omic Laboratory for Precision Medicine, Precision Medicine Center, Chi Mei Medical Center, Tainan, Taiwan
- Department of Laboratory Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Li-Ching Wu
- Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan
- Trans-Omic Laboratory for Precision Medicine, Precision Medicine Center, Chi Mei Medical Center, Tainan, Taiwan
| | - Cheng-Fa Yeh
- Division of General Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan
- Department of Environment Engineering and Science, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Yow-Ling Shiue
- Institute of Precision Medicine, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Chia-Lin Chou
- Department of Medical Technology, Chung Hwa University of Medical Technology, Tainan, Taiwan
- Division of Colon and Rectal Surgery, Department of Surgery, Chi Mei Medical Center, Tainan, Taiwan.
| | - Hong-Yue Lai
- Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan
- Trans-Omic Laboratory for Precision Medicine, Precision Medicine Center, Chi Mei Medical Center, Tainan, Taiwan
- Department of Pharmacology, School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan.
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5
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Yu L, Zhou Y, Sun S, Wang R, Yu W, Xiao H, Yu Z, Luo C. Tumor-suppressive effect of Reg3A in COAD is mediated by T cell activation in nude mice. Biomed Pharmacother 2023; 169:115922. [PMID: 38011786 DOI: 10.1016/j.biopha.2023.115922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 11/14/2023] [Accepted: 11/20/2023] [Indexed: 11/29/2023] Open
Abstract
Regenerating family protein 3 A (Reg3A) is highly expressed in a variety of organs and inflammatory tissues, and is closely related to tumorigenesis and cancer progression. However, clinical statistics show that high expression of Reg3A is associated with better prognosis in colorectal cancer (CRC) patients, suggesting a tumor-suppressive effect. The precise action and underlying mechanism of Reg3A in CRC remain controversial. The present study sought to investigate the relationship among Reg3A expression, CRC development, and immune cell alteration in patients using the TCGA, GEPIA, PrognoScan, TIMER and TISIDB databases. Reg3A-overexpressing LoVo cell line (LoVo-Reg3A), a representative of colon adenocarcinoma (COAD), was constructed and the action of Reg3A was assessed in a xenograft nude mouse model. Our bioinformatical analyses revealed that Reg3A upregulation is highly associated with CRC, along with increased frequency of immune cell infiltration. In the xenograft nude mice, Reg3A overexpression offered a tumor-suppressive effect by inhibiting cell proliferation and promoting apoptosis. The result of RNA-seq suggested a positive regulation of leukocytes and an upregulation of T cells in LoVo-Reg3A tumor tissue. CD4+ and CD8+ T cells in tumors, splenic Reg3A-reactive IFN-γ+/CD4+ T cells, and serum TNF-α, IFN-γ and IL-17 were significantly increased by Reg3A overexpression. In the ex vivo co-culture experiment, elevated cytotoxic effect, increased proportion of CD3ε+ T cells, and upregulated expressions of TNF-α, IFN-γ and IL-17 were detected in the PBMCs isolated from LoVo-Reg3A cell-xenografted nude mice. In conclusion, high expression of Reg3A could activate and recruit T cells in COAD leading to the cytotoxic tumor-suppressive effect.
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Affiliation(s)
- Luting Yu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China; School of Life Science & Technology, China Pharmaceutical University, Nanjing, China
| | - Yihan Zhou
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, China
| | - Shaozheng Sun
- College of Science, Northeastern University, Boston, United States
| | - Runlin Wang
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, China
| | - Weihong Yu
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, China
| | - Hanyu Xiao
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, China
| | - Zhuxi Yu
- Department of critical care medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.
| | - Chen Luo
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, China; State Key Laboratory of Nature Medicines, China Pharmaceutical University, Nanjing, China.
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6
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Geurts MH, Gandhi S, Boretto MG, Akkerman N, Derks LLM, van Son G, Celotti M, Harshuk-Shabso S, Peci F, Begthel H, Hendriks D, Schürmann P, Andersson-Rolf A, Chuva de Sousa Lopes SM, van Es JH, van Boxtel R, Clevers H. One-step generation of tumor models by base editor multiplexing in adult stem cell-derived organoids. Nat Commun 2023; 14:4998. [PMID: 37591832 PMCID: PMC10435570 DOI: 10.1038/s41467-023-40701-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/07/2023] [Indexed: 08/19/2023] Open
Abstract
Optimization of CRISPR/Cas9-mediated genome engineering has resulted in base editors that hold promise for mutation repair and disease modeling. Here, we demonstrate the application of base editors for the generation of complex tumor models in human ASC-derived organoids. First we show efficacy of cytosine and adenine base editors in modeling CTNNB1 hot-spot mutations in hepatocyte organoids. Next, we use C > T base editors to insert nonsense mutations in PTEN in endometrial organoids and demonstrate tumorigenicity even in the heterozygous state. Moreover, drug sensitivity assays on organoids harboring either PTEN or PTEN and PIK3CA mutations reveal the mechanism underlying the initial stages of endometrial tumorigenesis. To further increase the scope of base editing we combine SpCas9 and SaCas9 for simultaneous C > T and A > G editing at individual target sites. Finally, we show that base editor multiplexing allow modeling of colorectal tumorigenesis in a single step by simultaneously transfecting sgRNAs targeting five cancer genes.
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Affiliation(s)
- Maarten H Geurts
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Utrecht, the Netherlands.
- Oncode Institute, 3521AL, Utrecht, the Netherlands.
- Princess Maxima Center for Pediatric Oncology, 3584 CS, Utrecht, the Netherlands.
| | - Shashank Gandhi
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Utrecht, the Netherlands
- Miller Institute for Basic Research in Science, University of California, Berkeley, CA, 94720, USA
| | - Matteo G Boretto
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Utrecht, the Netherlands
- Oncode Institute, 3521AL, Utrecht, the Netherlands
| | - Ninouk Akkerman
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Utrecht, the Netherlands
- Oncode Institute, 3521AL, Utrecht, the Netherlands
| | - Lucca L M Derks
- Oncode Institute, 3521AL, Utrecht, the Netherlands
- Princess Maxima Center for Pediatric Oncology, 3584 CS, Utrecht, the Netherlands
| | - Gijs van Son
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Utrecht, the Netherlands
- Oncode Institute, 3521AL, Utrecht, the Netherlands
- Princess Maxima Center for Pediatric Oncology, 3584 CS, Utrecht, the Netherlands
| | - Martina Celotti
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Utrecht, the Netherlands
- Oncode Institute, 3521AL, Utrecht, the Netherlands
| | - Sarina Harshuk-Shabso
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Utrecht, the Netherlands
- Oncode Institute, 3521AL, Utrecht, the Netherlands
| | - Flavia Peci
- Oncode Institute, 3521AL, Utrecht, the Netherlands
- Princess Maxima Center for Pediatric Oncology, 3584 CS, Utrecht, the Netherlands
| | - Harry Begthel
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Utrecht, the Netherlands
- Oncode Institute, 3521AL, Utrecht, the Netherlands
| | - Delilah Hendriks
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Utrecht, the Netherlands
- Oncode Institute, 3521AL, Utrecht, the Netherlands
- Princess Maxima Center for Pediatric Oncology, 3584 CS, Utrecht, the Netherlands
| | - Paul Schürmann
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Utrecht, the Netherlands
- Oncode Institute, 3521AL, Utrecht, the Netherlands
| | - Amanda Andersson-Rolf
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Utrecht, the Netherlands
- Oncode Institute, 3521AL, Utrecht, the Netherlands
| | | | - Johan H van Es
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Utrecht, the Netherlands
- Oncode Institute, 3521AL, Utrecht, the Netherlands
| | - Ruben van Boxtel
- Oncode Institute, 3521AL, Utrecht, the Netherlands
- Princess Maxima Center for Pediatric Oncology, 3584 CS, Utrecht, the Netherlands
| | - Hans Clevers
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Utrecht, the Netherlands.
- Oncode Institute, 3521AL, Utrecht, the Netherlands.
- Pharma Research Early Development, Basel, Switzerland.
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Bao W, Wang L, Liu X, Li M. Predicting diagnostic biomarkers associated with immune infiltration in Crohn's disease based on machine learning and bioinformatics. Eur J Med Res 2023; 28:255. [PMID: 37496049 PMCID: PMC10369716 DOI: 10.1186/s40001-023-01200-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/26/2023] [Indexed: 07/28/2023] Open
Abstract
OBJECTIVE The objective of this study is to investigate potential biomarkers of Crohn's disease (CD) and the pathological importance of infiltration of associated immune cells in disease development using machine learning. METHODS Three publicly accessible CD gene expression profiles were obtained from the GEO database. Inflammatory tissue samples were selected and differentiated between colonic and ileal tissues. To determine the differentially expressed genes (DEGs) between CD and healthy controls, the larger sample size was merged as a training unit. The function of DEGs was comprehended through disease enrichment (DO) and gene set enrichment analysis (GSEA) on DEGs. Promising biomarkers were identified using the support vector machine-recursive feature elimination and lasso regression models. To further clarify the efficacy of potential biomarkers as diagnostic genes, the area under the ROC curve was observed in the validation group. Additionally, using the CIBERSORT approach, immune cell fractions from CD patients were examined and linked with potential biomarkers. RESULTS Thirty-four DEGs were identified in colon tissue, of which 26 were up-regulated and 8 were down-regulated. In ileal tissues, 50 up-regulated and 50 down-regulated DEGs were observed. Disease enrichment of colon and ileal DEGs primarily focused on immunity, inflammatory bowel disease, and related pathways. CXCL1, S100A8, REG3A, and DEFA6 in colon tissue and LCN2 and NAT8 in ileum tissue demonstrated excellent diagnostic value and could be employed as CD gene biomarkers using machine learning methods in conjunction with external dataset validation. In comparison to controls, antigen processing and presentation, chemokine signaling pathway, cytokine-cytokine receptor interactions, and natural killer cell-mediated cytotoxicity were activated in colonic tissues. Cytokine-cytokine receptor interactions, NOD-like receptor signaling pathways, and toll-like receptor signaling pathways were activated in ileal tissues. NAT8 was found to be associated with CD8 T cells, while CXCL1, S100A8, REG3A, LCN2, and DEFA6 were associated with neutrophils, indicating that immune cell infiltration in CD is closely connected. CONCLUSION CXCL1, S100A8, REG3A, and DEFA6 in colonic tissue and LCN2 and NAT8 in ileal tissue can be employed as CD biomarkers. Additionally, immune cell infiltration is crucial for CD development.
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Affiliation(s)
- Wenhui Bao
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Spleen and Gastroenterology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, No.354 Beima Road, Hongqiao District, Tianjin, China
| | - Lin Wang
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Nephrology Department, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiaoxiao Liu
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Department of Comprehensive Rehabilitation, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ming Li
- Spleen and Gastroenterology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, No.354 Beima Road, Hongqiao District, Tianjin, China.
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8
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Crosstalk between mucosal microbiota, host gene expression, and sociomedical factors in the progression of colorectal cancer. Sci Rep 2022; 12:13447. [PMID: 35927305 PMCID: PMC9352898 DOI: 10.1038/s41598-022-17823-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 08/01/2022] [Indexed: 11/24/2022] Open
Abstract
Various omics-based biomarkers related to the occurrence, progression, and prognosis of colorectal cancer (CRC) have been identified. In this study, we attempted to identify gut microbiome-based biomarkers and detect their association with host gene expression in the initiation and progression of CRC by integrating analysis of the gut mucosal metagenome, RNA sequencing, and sociomedical factors. We performed metagenome and RNA sequencing on colonic mucosa samples from 13 patients with advanced CRC (ACRC), 10 patients with high-risk adenoma (HRA), and 7 normal control (NC) individuals. All participants completed a questionnaire on sociomedical factors. The interaction and correlation between changes in the microbiome and gene expression were assessed using bioinformatic analysis. When comparing HRA and NC samples, which can be considered to represent the process of tumor initiation, 28 genes and five microbiome species were analyzed with correlation plots. When comparing ACRC and HRA samples, which can be considered to represent the progression of CRC, seven bacterial species and 21 genes were analyzed. When comparing ACRC and NC samples, 16 genes and five bacterial species were analyzed, and four correlation plots were generated. A network visualizing the relationship between bacterial and host gene expression in the initiation and progression of CRC indicated that Clostridium spiroforme and Tyzzerella nexilis were hub bacteria in the development and progression of CRC. Our study revealed the interactions of and correlation between the colonic mucosal microbiome and host gene expression to identify potential roles of the microbiome in the initiation and progression of CRC. Our results provide gut microbiome-based biomarkers that may be potential diagnostic markers and therapeutic targets in patients with CRC.
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Derakhshani A, Javadrashid D, Hemmat N, Dufour A, Solimando AG, Abdoli Shadbad M, Duijf PHG, Brunetti O, Silvestris N, Baradaran B. Identification of Common and Distinct Pathways in Inflammatory Bowel Disease and Colorectal Cancer: A Hypothesis Based on Weighted Gene Co-Expression Network Analysis. Front Genet 2022; 13:848646. [PMID: 35432477 PMCID: PMC9008839 DOI: 10.3389/fgene.2022.848646] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/14/2022] [Indexed: 12/12/2022] Open
Abstract
Patients with inflammatory bowel disease (IBD), including ulcerative colitis and Crohn’s disease, are at higher risk to develop colorectal cancer (CRC). However, the underlying mechanisms of this predisposition remain elusive. We performed in-depth comparative computational analyses to gain new insights, including weighted gene co-expression network analysis (WGCNA) and gene ontology and pathway enrichment analyses, using gene expression datasets from IBD and CRC patients. When individually comparing IBD and CRC to normal control samples, we identified clusters of highly correlated genes, differentially expressed genes, and module-trait associations specific for each disease. When comparing IBD to CRC, we identified common hub genes and commonly enriched pathways. Most notably, IBD and CRC share significantly increased expression of five genes (MMP10, LCN2, REG1A, REG3A, and DUOX2), enriched inflammatory and neutrophil activation pathways and, most notably, highly significant enrichment of IL-4 and IL-13 signaling. Thus, our work expands our knowledge about the intricate relationship between IBD and CRC development and provides new rationales for developing novel therapeutic strategies.
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Affiliation(s)
- Afshin Derakhshani
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, AB, Canada
| | - Darya Javadrashid
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nima Hemmat
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Antoine Dufour
- Departments of Physiology and Pharmacology, University of Calgary, Calgary, AB, Canada
- McCaig Insitute, Hotchkiss Brain Institute and Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada
| | - Antonio Giovanni Solimando
- Department of Biomedical Sciences and Human Oncology, School of Medicine, Aldo Moro University of Bari, Bari, Italy
| | | | - Pascal H. G. Duijf
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia
- Centre for Data Science, Queensland University of Technology, Brisbane, QLD, Australia
- Translational Research Institute, University of Queensland Diamantina Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Oronzo Brunetti
- Medical Oncology Unit, IRCCS Istituto Tumori Giovanni Paolo II, Bari, Italy
| | - Nicola Silvestris
- Medical Oncology Unit, Department of Human Pathology “G. Barresi” , University of Messina, Messina, Italy
- *Correspondence: Nicola Silvestris, ; Behzad Baradaran,
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- *Correspondence: Nicola Silvestris, ; Behzad Baradaran,
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10
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Wang L, Quan Y, Zhu Y, Xie X, Wang Z, Wang L, Wei X, Che F. The regenerating protein 3A: a crucial molecular with dual roles in cancer. Mol Biol Rep 2021; 49:1491-1500. [PMID: 34811636 PMCID: PMC8825409 DOI: 10.1007/s11033-021-06904-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 10/29/2021] [Indexed: 12/20/2022]
Abstract
Introduction REG3A, a member of the third subclass of the Reg family, has been found in a variety of tissues but is not detected in immune cells. In the past decade, it has been determined that REG3A expression is regulated by injury, infection, inflammatory stimuli, and pro-cytokines via different signaling pathways, and it acts as a tissue-repair, bactericidal, and anti-inflammatory molecule in human diseases. Recently, the role of REG3A in cancer has received increasing attention. The present article aims to investigate the structure, expression, regulation, function of REG3A, and to highlight the potential role of REG3A in tumors. Methods A detailed literature search and data organization were conducted to find information about the role of REG3A in variety of physiological functions and tumors. Results Contradictory roles of REG3A have been reported in different tumor models. Some studies have demonstrated that high expression of REG3A in cancers can be oncogenic. Other studies have shown decreased REG3A expression in cancer cells as well as suppressed tumor growth. Conclusions Taken together, better understanding of REG3A may lead to new insights that make it a potentially useful target for cancer therapy.
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Affiliation(s)
- Liying Wang
- Department of Clinlical Medicine, Weifang Medical College, Weifang, China.,Department of Neurology, Linyi People's Hospital, Linyi, China
| | - Yanchun Quan
- Central Laboratory, Linyi People's Hospital, Linyi, China. .,Key Laboratory of Neurophysiology, Linyi People's Hospital, Linyi, Shandong, China. .,Key Laboratory of Tumor Biology, Linyi People's Hospital, Linyi, Shandong, China.
| | - Yanxi Zhu
- Central Laboratory, Linyi People's Hospital, Linyi, China.,Key Laboratory of Neurophysiology, Linyi People's Hospital, Linyi, Shandong, China.,Key Laboratory of Tumor Biology, Linyi People's Hospital, Linyi, Shandong, China
| | - Xiaoli Xie
- Central Laboratory, Linyi People's Hospital, Linyi, China.,Key Laboratory of Neurophysiology, Linyi People's Hospital, Linyi, Shandong, China.,Key Laboratory of Tumor Biology, Linyi People's Hospital, Linyi, Shandong, China
| | - Zhiqiang Wang
- Central Laboratory, Linyi People's Hospital, Linyi, China.,Key Laboratory of Neurophysiology, Linyi People's Hospital, Linyi, Shandong, China.,Key Laboratory of Tumor Biology, Linyi People's Hospital, Linyi, Shandong, China
| | - Long Wang
- Central Laboratory, Linyi People's Hospital, Linyi, China.,Key Laboratory of Neurophysiology, Linyi People's Hospital, Linyi, Shandong, China.,Key Laboratory of Tumor Biology, Linyi People's Hospital, Linyi, Shandong, China
| | - Xiuhong Wei
- Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, China
| | - Fengyuan Che
- Department of Neurology, Linyi People's Hospital, Linyi, China. .,Central Laboratory, Linyi People's Hospital, Linyi, China. .,Key Laboratory of Neurophysiology, Linyi People's Hospital, Linyi, Shandong, China. .,Key Laboratory of Tumor Biology, Linyi People's Hospital, Linyi, Shandong, China.
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11
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Wang L, Tuo H, Song Z, Li W, Peng Y. Reg3A (regenerating family member 3 alpha) acts as a tumor suppressor by targeting DMBT1 (deleted in malignant brain tumors 1) in gastric cancer. Bioengineered 2021; 12:7644-7655. [PMID: 34605357 PMCID: PMC8806639 DOI: 10.1080/21655979.2021.1981800] [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] [Indexed: 11/15/2022] Open
Abstract
Regenerating family member 3 alpha (Reg3A) encodes a pancreatic secretory protein that may be involved in cell proliferation or differentiation. However, the function and downstream regulatory mechanism of Reg3A in gastric cancer (GC) remains elusive. This study aimed to clarify the function and mechanism of Reg3A regulating cell proliferation in GC. The expression levels of Reg3A were confirmed in GC patients and cells using qRT-PCR and western blotting. TCGA datasets and clinical samples were used to explore the correlation between Reg3A and clinicopathologic features in GC. Cell viability, colony formation, and xenograft tumorigenesis assays were performed to detect the function of Reg3A on cell proliferation. Besides, we predicted the correlated genes of Reg3A by analyzing TCGA datasets, and further investigated the downstream regulatory mechanism of Reg3A in GC. Our results demonstrated that Reg3A is down-regulated in vitro and vivo (P < 0.05). Reg3A expression are negatively correlated with TNM classification (P < 0.001), lymph node (P < 0.001) in GC. Reg3A significantly suppresses cell proliferation in GC (P < 0.05). Bioinformatic analysis and experimental results confirmed that Reg3A positively regulates the expression of deleted in malignant brain tumor 1 (DMBT1, P < 0.05). Besides, Reg3A and DMBT1 all prolong the overall survival (OS, P < 0.01), post-progression survival (PPS, P < 0.05), and first progression survival (FP, P < 0.01). The function of Reg3A inhibiting cell proliferation is abolished by DMBT1 siRNA in GC (P < 0.05). In conclusion, Reg3A may act as a novel tumor suppressor by promoting DMBT1 expression, which may be a potential therapeutic target in patients with GC.
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Affiliation(s)
- Liang Wang
- Department of Surgery, Hebei Medical University, Shijiazhuang, China
| | - Hongfang Tuo
- Department of Surgery, Hebei Medical University, Shijiazhuang, China.,Department of Surgery, Hebei General Hospital, Shijiazhuang, China
| | - Zhe Song
- The Second Department of General Surgery, Cangzhou Central Hospital, Cangzhou, China
| | - Wei Li
- The Second Department of General Surgery, Cangzhou Central Hospital, Cangzhou, China
| | - Yanhui Peng
- Department of Surgery, Hebei Medical University, Shijiazhuang, China.,Department of Surgery, Hebei General Hospital, Shijiazhuang, China
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12
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Wu M, Lou W, Lou M, Fu P, Yu XF. Integrated Analysis of Distant Metastasis-Associated Genes and Potential Drugs in Colon Adenocarcinoma. Front Oncol 2020; 10:576615. [PMID: 33194689 PMCID: PMC7645237 DOI: 10.3389/fonc.2020.576615] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 08/28/2020] [Indexed: 12/17/2022] Open
Abstract
Background: Most colon adenocarcinoma (COAD) patients die of distant metastasis, though there are some therapies for metastatic COAD. However, the genes exclusively expressed in metastatic COAD remain unclear. This study aims to identify prognosis-related genes associated with distant metastasis and develop therapeutic strategies for COAD patients. Methods: Transcriptomic data from The Cancer Genome Atlas (TCGA; n = 514) cohort were analyzed as a discovery dataset. Next, the data from the GEPIA database and PROGgeneV2 database were used to validate our analysis. Key genes were identified based on the differential miRNA and mRNA expression with respect to M stage. The potential drugs targeting candidate differentially expressed genes (DEGs) were also investigated. Results: A total of 127 significantly DEGs in patients with distant metastasis compared with patients without distant metastasis were identified. Then, four prognosis-related genes (LEP, DLX2, CLSTN2, and REG3A) were selected based on clustering analysis and survival analysis. Finally, three compounds targeting the candidate DEGs, including ajmaline, TTNPB, and dydrogesterone, were predicted to be potential drugs for COAD. Conclusions: This study revealed that distant metastasis in COAD is associated with a specific group of genes, and three existing drugs may suppress the distant metastasis of COAD.
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Affiliation(s)
- Miaowei Wu
- Cancer Institute, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Weiyang Lou
- Department of Breast Surgery, First Affiliated Hospital of Zhejiang University, College of Medicine, Zhejiang University, Hangzhou, China
| | - Meng Lou
- Cancer Institute, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Peifen Fu
- Department of Breast Surgery, First Affiliated Hospital of Zhejiang University, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xiao-Fang Yu
- Cancer Institute, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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13
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Dhar S, Datta A, Brosh RM. DNA helicases and their roles in cancer. DNA Repair (Amst) 2020; 96:102994. [PMID: 33137625 DOI: 10.1016/j.dnarep.2020.102994] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 09/28/2020] [Indexed: 12/15/2022]
Abstract
DNA helicases, known for their fundamentally important roles in genomic stability, are high profile players in cancer. Not only are there monogenic helicase disorders with a strong disposition to cancer, it is well appreciated that helicase variants are associated with specific cancers (e.g., breast cancer). Flipping the coin, DNA helicases are frequently overexpressed in cancerous tissues and reduction in helicase gene expression results in reduced proliferation and growth capacity, as well as DNA damage induction and apoptosis of cancer cells. The seminal roles of helicases in the DNA damage and replication stress responses, as well as DNA repair pathways, validate their vital importance in cancer biology and suggest their potential values as targets in anti-cancer therapy. In recent years, many laboratories have characterized the specialized roles of helicase to resolve transcription-replication conflicts, maintain telomeres, mediate cell cycle checkpoints, remodel stalled replication forks, and regulate transcription. In vivo models, particularly mice, have been used to interrogate helicase function and serve as a bridge for preclinical studies that may lead to novel therapeutic approaches. In this review, we will summarize our current knowledge of DNA helicases and their roles in cancer, emphasizing the latest developments.
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Affiliation(s)
- Srijita Dhar
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Arindam Datta
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Robert M Brosh
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA.
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14
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Hiraki D, Uehara O, Kuramitsu Y, Morikawa T, Harada F, Yoshida K, Akino K, Chiba I, Asaka M, Abiko Y. P. gingivalis Lipopolysaccharide Stimulates the Upregulated Expression of the Pancreatic Cancer-Related Genes Regenerating Islet-Derived 3 A/G in Mouse Pancreas. Int J Mol Sci 2020; 21:ijms21197351. [PMID: 33027970 PMCID: PMC7583020 DOI: 10.3390/ijms21197351] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/01/2020] [Accepted: 10/01/2020] [Indexed: 02/07/2023] Open
Abstract
Although epidemiological studies have shown a relationship between periodontal disease and pancreatic cancer, the molecular mechanisms involved remain unclear. In this study, the effects of systemic administration of Porphyromonas gingivalis lipopolysaccharide (PG-LPS) on gene expression were comprehensively explored in mouse pancreas that did not demonstrate any signs of inflammation. PG-LPS was prepared in physiological saline and intraperitoneally administered to male mice at a concentration of 5 mg/kg every 3 days for 1 month. After extracting total RNA from the excised mice pancreas, a comprehensive DNA microarray analysis of gene expression was performed. Tissue specimens were also subjected to hematoxylin-eosin staining and immunohistochemistry using anti-regenerating islet-derived 3A and G (Reg3A/G) antibody. ImageJ software was used to quantify the area of Reg3A/G positive cells in pancreatic islets by binarizing image date followed by area extraction. The results were compared using Mann-Whitney U test. Data are presented as mean ± standard deviation (SD) with p < 0.05 considered as significant. Reg3G, a gene related to pancreatic cancer, was one of the 10 genes with the highest levels of expression in the pancreas stimulated with PG-LPS. The comprehensive analysis revealed a 73-fold increase in Reg3G expression level in the PG-LPS group when compared with the control group; in addition, the expression level of Reg3A was increased by 11-fold in the PG-LPS group. Image analysis showed that the ratio of Reg3A/G positive cells was higher in the PG-LPS group than the control. Immunostaining showed the presence of Reg3A/G-positive cells in the alpha-cell equivalent areas around the islets of Langerhans in the PG-LPS group. These results support the notion that periodontal disease may be a risk factor for pancreatic cancer.
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Affiliation(s)
- Daichi Hiraki
- Division of Reconstructive Surgery for Oral and Maxillofacial Region, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan;
| | - Osamu Uehara
- Division of Disease Control and Molecular Epidemiology, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan; (O.U.); (I.C.)
| | - Yasuhiro Kuramitsu
- Research Institute of Cancer Prevention, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan; (Y.K.); (K.A.); (M.A.)
| | - Tetsuro Morikawa
- Division of Oral Medicine and Pathology, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan; (T.M.); (K.Y.)
| | - Fumiya Harada
- Division of Oral and Maxillofacial Surgery, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan;
| | - Koki Yoshida
- Division of Oral Medicine and Pathology, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan; (T.M.); (K.Y.)
| | - Kozo Akino
- Research Institute of Cancer Prevention, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan; (Y.K.); (K.A.); (M.A.)
| | - Itsuo Chiba
- Division of Disease Control and Molecular Epidemiology, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan; (O.U.); (I.C.)
| | - Masahiro Asaka
- Research Institute of Cancer Prevention, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan; (Y.K.); (K.A.); (M.A.)
| | - Yoshihiro Abiko
- Division of Oral Medicine and Pathology, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan; (T.M.); (K.Y.)
- Correspondence: ; Tel.: +81-133-23-1211
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15
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Du P, Wang X, Yin T, Zhang X, Zhang Z, Yu W, Wang M, Luo C, Yu L. Anti-tumor effect of single-chain antibody to Reg3a in colorectal cancer. Exp Cell Res 2020; 396:112278. [PMID: 32918897 DOI: 10.1016/j.yexcr.2020.112278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND Regenerating protein 3a (Reg3a) is a trophic factor that functions as a stimulus in cell proliferation and neogenesis. Previous studies showed that Reg3a is ectopically upregulated in a majority of colorectal cancers (CRC) and detectable in the serum. METHODS Single-chain variable fragment targeting Reg3a (scFv-Reg3a) was screened from a phage library. The bioactivity of recombinant Reg3a (rReg3a) and scFv-Reg3a were tested in LoVo and RKO cell lines using MTT, flow cytometry, wound healing and transwell analyses. Whether scFv-Reg3a inhibits tumor growth and enhances 5-fluorouracil (5-FU)-caused cell death were further examined in LoVo cell-transplanted nude BALB/c mice. RESULTS A scFv-Reg3a from clone C2 was obtained and its binding affinity (KD) to rReg3a was determined to be 4.44 × 10-10. In cultured LoVo and RKO cells, rReg3a promoted but scFv-Reg3a inhibited cell proliferation, survival, migration and invasion. In LoVo cell-xenografted nude mice, administration of rReg3a accelerated tumor growth while scFv-Reg3a suppressed cell proliferation and reinforced 5-FU-induced cell death. CONCLUSION The newly developed scFv-Reg3a is an anti-cancer agent which is potent to suppress CRC cell proliferation and survival. The use of scFv-Reg3a could enhance the effectiveness of 5-FU-based chemotherapy in the cancerous treatment.
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Affiliation(s)
- Pei Du
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, China
| | - Xiaonan Wang
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, China
| | - Tianqi Yin
- UConn Health, University of Connecticut, Hartford, USA
| | - Xueqing Zhang
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, China
| | - Zhiyuan Zhang
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, China
| | - Weihong Yu
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, China
| | - Min Wang
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, China; State Key Laboratory of Nature Medicines, China Pharmaceutical University, Nanjing, China
| | - Chen Luo
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, China; State Key Laboratory of Nature Medicines, China Pharmaceutical University, Nanjing, China.
| | - Luting Yu
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, China.
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16
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Poluan RH, Sudigyo D, Rahmawati G, Setiasari DW, Sesotyosari SL, Wardana T, Astuti I, Heriyanto DS, Indrasari SR, Herawati C, Afiahayati , Haryana SM. Transcriptome Related to Avoiding Immune Destruction in Nasopharyngeal Cancer in Indonesian Patients Using Next-Generation Sequencing. Asian Pac J Cancer Prev 2020; 21:2593-2601. [PMID: 32986357 PMCID: PMC7779461 DOI: 10.31557/apjcp.2020.21.9.2593] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Indexed: 12/24/2022] Open
Abstract
Objective: This study aims to obtain the transcriptomes profile associated with avoiding immune destruction from nasopharyngeal cancer patients in Indonesia using next-generation sequencing. Methods: The samples are divided into two types of samples; 1) biopsy of nasopharyngeal cancer tissue samples, 2) brushing tissue of people without nasopharyngeal cancer as control samples. The sequencing results were mapped (HISAT2) and quantified (HTSeq) for differential expression analysis using edgeR software. Transcripts data analyzed with Pantherdb and DAVID software to find genes related to the immune system and pathways related to immune destruction by cancer. Results: The differential expression results show that 2,046 genes that have a significant differential expression. The 90 genes expression has down-regulated and 1,956 genes expression up-regulated, there are 20 genes related to the immune system. The 20 genes related to the immune system by analyzing lionproject.net that directly related to hallmark avoiding immune destruction that genes are CXCL9/10/11. The gene expression of CXCL9/10/11 regulates PD-L1 expressions via the Jak/STAT signaling pathway. The interaction between the extracellular domain PD-1 and PD-L1 in cancer cells have avoiding immune destruction. Conclusion: The results of this study suggest that the gene expression of CXCL9/10/11 have up-regulated is related to avoiding immune destruction that can use as an early detection biomarker of nasopharyngeal cancer in Indonesian patients.
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Affiliation(s)
- Risky Hiskia Poluan
- Study Program of Biotechnology, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Digdo Sudigyo
- Study Program of Biotechnology, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Gisti Rahmawati
- Study Program of Biotechnology, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | | | | | - Tirta Wardana
- Universitas Jenderal Soedirman, Central Java, Indonesia
| | - Indwiani Astuti
- Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Didik Setyo Heriyanto
- Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Sagung Rai Indrasari
- Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | | | - - Afiahayati
- Department of Computer Science and Electronics, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Sofia Mubarika Haryana
- Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
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17
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George S, Lucero Y, Torres JP, Lagomarcino AJ, O'Ryan M. Gastric Damage and Cancer-Associated Biomarkers in Helicobacter pylori-Infected Children. Front Microbiol 2020; 11:90. [PMID: 32117120 PMCID: PMC7029740 DOI: 10.3389/fmicb.2020.00090] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 01/15/2020] [Indexed: 12/11/2022] Open
Abstract
Helicobacter pylori (H. pylori) is well-known to be involved in gastric carcinogenesis, associated with deregulation of cell proliferation and epigenetic changes in cancer-related genes. H. pylori infection is largely acquired during childhood, persisting long-term in about half of infected individuals, a subset of whom will go on to develop peptic ulcer disease and eventually gastric cancer, however, the sequence of events leading to disease is not completely understood. Knowledge on carcinogenesis and gastric damage-related biomarkers is abundant in adult populations, but scarce in children. We performed an extensive literature review focusing on gastric cancer related biomarkers identified in adult populations, which have been detected in children infected with H. pylori. Biomarkers were related to expression levels (RNA or protein) and/or methylation levels (DNA) in gastric tissue or blood of infected children as compared to non-infected controls. In this review, we identified 37 biomarkers of which 24 are over expressed, three are under expressed, and ten genes are significantly hypermethylated in H. pylori-infected children compared to healthy controls in at least 1 study. Only four of these biomarkers (pepsinogen I, pepsinogen II, gastrin, and SLC5A8) have been studied in asymptomatically infected children. Importantly, 13 of these biomarkers (β-catenin, C-MYC, GATA-4, DAPK1, CXCL13, DC-SIGN, TIMP3, EGFR, GRIN2B, PIM2, SLC5A8, CDH1, and VCAM-1.) are consistently deregulated in infected children and in adults with gastric cancer. Future studies should be designed to determine the clinical significance of these changes in infection-associated biomarkers in children and their persistence over time. The effect of eradication therapy over these biomarkers in children if proven significant, could lead to modifications in treatment guidelines for younger populations, and eventually promote the development of preventive strategies, such as vaccination, in the near future.
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Affiliation(s)
- Sergio George
- Host-Pathogen Interaction Laboratory, Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Yalda Lucero
- Host-Pathogen Interaction Laboratory, Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile.,Department of Pediatrics and Pediatric Surgery, Dr. Roberto del Río Hospital, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Juan Pablo Torres
- Host-Pathogen Interaction Laboratory, Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile.,Department of Pediatrics and Pediatric Surgery, Dr. Luis Calvo Mackenna Hospital, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Anne J Lagomarcino
- Host-Pathogen Interaction Laboratory, Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Miguel O'Ryan
- Host-Pathogen Interaction Laboratory, Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile.,Millennium Institute on Immunology and Immunotherapy (IMII), Faculty of Medicine, Universidad de Chile, Santiago, Chile
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18
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Cho Y, Park MJ, Kim K, Park JY, Kim J, Kim W, Yoon JH. Tumor-Stroma Crosstalk Enhances REG3A Expressions that Drive the Progression of Hepatocellular Carcinoma. Int J Mol Sci 2020; 21:ijms21020472. [PMID: 31940813 PMCID: PMC7013972 DOI: 10.3390/ijms21020472] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/07/2020] [Accepted: 01/09/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Crosstalk between tumors and their microenvironment plays a crucial role in the progression of hepatocellular carcinoma (HCC). However, there is little existing information about the key signaling molecule that modulates tumor-stroma crosstalk. METHODS Complementary DNA (cDNA) microarray analysis was performed to identify the key molecule in tumor-stroma crosstalk. Subcutaneous xenograft in vivo murine model, immunoblotting, immunofluorescence, and real-time polymerase chain reaction using HCC cells and tissues were performed. RESULTS The key molecule, regenerating gene protein-3A (REG3A), was most significantly enhanced when coculturing HCC cells and activated human hepatic stellate cells (HSCs) (+8.2 log) compared with monoculturing HCC cells using cDNA microarray analysis. Downregulation of REG3A using small interfering RNA significantly decreased the proliferation of HSC-cocultured HCC cells in vitro and in vivo, and enhanced deoxycholic acid-induced HCC cell apoptosis. Crosstalk-induced REG3A upregulation was modulated by platelet-derived growth factor ββ (PDGF-ββ) in p42/44-dependent manner. REG3A mRNA levels in human HCC tissues were upregulated 1.8-fold compared with non-tumor tissues and positively correlated with PDGF-ββ levels. CONCLUSIONS REG3A/p42/44 pathway/PDGF-ββ signaling plays a significant role in hepatocarcinogenesis via tumor-stroma crosstalk. Targeting REG3A is a potential novel therapeutic target for the management of HCCs by inhibiting crosstalk between HCC cells and HSCs.
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Affiliation(s)
- Yuri Cho
- Department of Internal Medicine, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul 06135, Korea; (M.J.P.); (K.K.); (J.K.); (W.K.)
- Department of Internal Medicine and Liver Research Institute, College of Medicine, Seoul National University, Seoul 03080, Korea;
- Correspondence: ; Tel.: +82-2-3468-3281; Fax: +82-2-558-1119
| | - Min Ji Park
- Department of Internal Medicine, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul 06135, Korea; (M.J.P.); (K.K.); (J.K.); (W.K.)
| | - Koeun Kim
- Department of Internal Medicine, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul 06135, Korea; (M.J.P.); (K.K.); (J.K.); (W.K.)
| | - Jae-Young Park
- Department of Orthopaedic Surgery, KyungHee University Medical Center, Seoul 02447, Korea;
| | - Jihye Kim
- Department of Internal Medicine, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul 06135, Korea; (M.J.P.); (K.K.); (J.K.); (W.K.)
| | - Wonjin Kim
- Department of Internal Medicine, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul 06135, Korea; (M.J.P.); (K.K.); (J.K.); (W.K.)
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, College of Medicine, Seoul National University, Seoul 03080, Korea;
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19
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Zhang MY, Wang J, Guo J. Role of Regenerating Islet-Derived Protein 3A in Gastrointestinal Cancer. Front Oncol 2019; 9:1449. [PMID: 31921694 PMCID: PMC6928188 DOI: 10.3389/fonc.2019.01449] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 12/04/2019] [Indexed: 12/16/2022] Open
Abstract
Regenerating islet-derived protein 3A (Reg3A), a protein mainly expressed in the digestive system, has been found over-expressed in many kinds of gastrointestinal cancer, including hepatocellular carcinoma, pancreatic cancer, gastric cancer, and colorectal cancer, therefore has been considered as a promising tumor marker. In recent years, considerable attention has been focused on the tumorigenesis effects of Reg3A, which were mainly manifested as cell proliferation promotion, cell apoptosis inhibition, the regulation of cancer cell migration and invasion. In particular, based on the significant up-regulation of Reg3A during pancreatic inflammation as well as its tumorigenic potential, Reg3A has been considered to play a key role in inflammation-linked pancreatic carcinogenesis. In addition, we here systematically generalized the reported Reg3A-related signaling molecules, which included JAK2-STAT3- NF-κB, SOCS3, EXTL3-PI3K-Akt, GSK3β, Wnt/β-catenin as well as some invasion and migration-related genes (Snail, MMP-2, MMP-9, E-cadherin, RhoC, and MTA1). And gp130, EGFR, EXTL3, and Fibronectin 1 might act as potential receptors for Reg3A.
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Affiliation(s)
- Meng-Ya Zhang
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, China.,Department of Pharmacy, New Medicine Innovation and Development Institute, College of Medicine, Wuhan University of Science and Technology, Wuhan, China
| | - Jun Wang
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, China.,Department of Pharmacy, New Medicine Innovation and Development Institute, College of Medicine, Wuhan University of Science and Technology, Wuhan, China
| | - Jie Guo
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, China.,Department of Pharmacy, New Medicine Innovation and Development Institute, College of Medicine, Wuhan University of Science and Technology, Wuhan, China
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20
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Cui P, Su J, Li Q, Xu G, Zhu N. LncRNA RHPN1-AS1 Targeting miR-625/REG3A Promotes Cell Proliferation And Invasion Of Glioma Cells. Onco Targets Ther 2019; 12:7911-7921. [PMID: 31576148 PMCID: PMC6769163 DOI: 10.2147/ott.s209563] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 08/15/2019] [Indexed: 12/19/2022] Open
Abstract
Introduction Glioma arises from the proliferation of neuroglial cells differentiated from the ectoderm. Evidence has confirmed that differentially expressed long non-coding RNAs (lncRNAs) may be involved in the development and progression of various tumors. The present study aimed to explore the biological function of lncRNA RHPN1-AS1 in glioma. Materials and methods The expressions of RHPN1-AS1 in glioma tissues and cells were examined using RT-PCR. Colony formation assay, MTT assay, wound healing assay and transwell assay were performed to detect cell cloning efficiency, proliferation, migration and invasion of glioma cells, respectively. Western blot was applied to assess the expression levels of migration-related and invasion-related proteins. Online bioinformatic tools and luciferase reporter assay were, respectively, employed to predict and verify the downstream target microRNA/gene of RHPN1-AS1. Results RHPN1-AS1 was up-regulated in glioma tissues and cells. The cell proliferation, migration and invasion of glioma were inhibited when the expression of RHPN1-AS1 was down-regulated in glioma cells. The expressions of migration-related and invasion-related proteins were also suppressed in siRHPN1-AS1 groups. Furthermore, we predicted and verified that RHPN1-AS1 was directly targeted to miR-625-5p/REG3A. Our study demonstrated that the knockdown of RHPN1-AS1 inhibited the proliferation, migration and invasion activity of glioma cells via regulating miR-625-5p/REG3A expression. Conclusion The results revealed that the lncRNA RHPN1-AS1 may be a molecular target in glioma therapy.
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Affiliation(s)
- Peng Cui
- Department of Neurosurgery, Taian Center Hospital, Taian 271000, People's Republic of China.,School of Medicine, Shandong University, Jinan 250000, People's Republic of China
| | - Jichun Su
- Department of Neurosurgery, Taian Center Hospital, Taian 271000, People's Republic of China
| | - Qingmin Li
- Department of Neurosurgery, Taian Center Hospital, Taian 271000, People's Republic of China
| | - Guangming Xu
- Department of Neurosurgery, Shandong Provincial Hospital, Jinan 250021, People's Republic of China
| | - Ningxi Zhu
- Department of Neurosurgery, Taian Center Hospital, Taian 271000, People's Republic of China
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21
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Barros-Filho MC, Dos Reis MB, Beltrami CM, de Mello JBH, Marchi FA, Kuasne H, Drigo SA, de Andrade VP, Saieg MA, Pinto CAL, Kowalski LP, Rogatto SR. DNA Methylation-Based Method to Differentiate Malignant from Benign Thyroid Lesions. Thyroid 2019; 29:1244-1254. [PMID: 31328658 DOI: 10.1089/thy.2018.0458] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background: The differential diagnosis of thyroid nodules using fine-needle aspiration biopsy (FNAB) is challenging due to the inherent limitation of the cytology tests. The use of molecular markers has potential to complement the FNAB-based diagnosis and avoid unnecessary surgeries. In this study, we aimed to identify DNA methylation biomarkers and to develop a diagnostic tool useful for thyroid lesions. Methods: Genome-wide DNA methylation profiles (Illumina 450K) of papillary thyroid carcinoma (PTC = 60) and follicular thyroid carcinoma (FTC = 10) were compared with non-neoplastic thyroid tissue samples (NT = 50) and benign thyroid lesions (BTL = 17). The results were confirmed in publicly available databases from the Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) using the same DNA methylation platform. Two classifiers were trained to discriminate FTC and PTC from BTL. To increase the applicability of the method, six differentially methylated CpGs were selected and evaluated in 161 thyroid tumors and 69 BTL postsurgical specimens and 55 prospectively collected FNAB using bisulfite-pyrosequencing. Results: DNA methylation analysis revealed 2130 and 19 differentially methylated CpGs in PTC and FTC, respectively. The CpGs confirmed by GEO and TCGA databases showing high areas under the receiver operating characteristic curve in all sample sets were used to train our diagnostic classifier. The model based on six CpGs was able to differentiate benign from malignant thyroid lesions with 94.3% sensitivity and 82.4% specificity. A similar performance was found applying the algorithm to TCGA and GEO external data sets (91.3-97.4% sensitivity and 87.5% specificity). We successfully evaluated the classifiers using a bisulfite-pyrosequencing technique, achieving 90.7% sensitivity and 75.4% specificity in surgical specimens (five of six CpGs). The study comprising FNAB cytology materials corroborated the applicability and performance of the methodology, demonstrating 86.7% sensitivity and 89.5% specificity in confirmed malignant tumors, and 100% sensitivity and 89% specificity in cases with indeterminate cytology. Conclusions: A novel diagnostic tool with potential application in preoperative screening of thyroid nodules is reported here. The proposed protocol has the potential to avoid unnecessary thyroidectomies.
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Affiliation(s)
| | - Mariana Bisarro Dos Reis
- International Research Center - CIPE-A.C.Camargo Cancer Center, São Paulo, Brazil
- Faculty of Medicine, University of Sao Paulo State-UNESP, Botucatu, Brazil
| | | | | | | | - Hellen Kuasne
- International Research Center - CIPE-A.C.Camargo Cancer Center, São Paulo, Brazil
| | | | | | - Mauro Ajaj Saieg
- Department of Pathology, A.C.Camargo Cancer Center, São Paulo, Brazil
| | | | - Luiz Paulo Kowalski
- Department of Head and Neck Surgery and Otorhinolaryngology, A.C.Camargo Cancer Center, São Paulo, Brazil
| | - Silvia Regina Rogatto
- Department of Clinical Genetics, Vejle Hospital, Institute of Regional Health Research, University of Southern Denmark, Vejle, Denmark
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22
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Zhang M, Zhou W, Zhao S, Li S, Yan D, Wang J. Eckol inhibits Reg3A-induced proliferation of human SW1990 pancreatic cancer cells. Exp Ther Med 2019; 18:2825-2832. [PMID: 31572529 PMCID: PMC6755494 DOI: 10.3892/etm.2019.7889] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 06/27/2019] [Indexed: 12/13/2022] Open
Abstract
Pancreatic cancer (PaC) is characterized by a highly inflammatory tumor microenvironment, and inflammatory mediators are implicated in the progression of this cancer. Regenerating gene protein (Reg) 3A is significantly upregulated during pancreatic inflammation, and has been demonstrated to serve an important role during PaC progression, based on its increased expression levels in PaC and potent cell proliferation-promoting activity. The aim of the present study was to investigate the effect of eckol, a phlorotannin compound with a variety of biological activities including anti-inflammatory, anti-tumor and cytoprotective effects, on Reg3A-induced proliferation of human SW1990 PaC cells. SW1990 cells were pre-treated with eckol for 48 h at concentrations of 5, 10 and 20 µg/ml. Subsequently, Reg3A protein was added to the culture media at a final concentration of 50 ng/ml in the presence or absence of eckol for 24 h. The cytotoxicity and proliferative capacity of the SW1990 cells was determined using an MTT and flow cytometry analysis. Cell colony formation was also used to determine the effect of eckol on the anchorage-independent growth and colony-forming capacity of Reg3A-treated PaC cells. The expression levels of cyclin D1, STAT3, JAK2, and NF-κB p65 were measured with reverse transcription-quantitative PCR and western blotting. Eckol reduced Reg3A-promoted cell survival, inhibited Reg3A-induced cell cycle progression and inhibited colony growth of SW1990 cells in soft agar in a concentration-dependent manner. Additionally, the Reg3A-mediated upregulation of expression of JAK2, STAT3, NF-κBp65 and cyclin D1 was reduced when treated with eckol. Reg3A is upregulated during pancreatic inflammation and exhibits a pro-growth function and may thus serve a critical role during inflammation-driven PaC malignancies. Eckol may be a potential protective agent against progression of PaC accompanied by pancreatic inflammation.
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Affiliation(s)
- Mengya Zhang
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China.,New Medicine Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China
| | - Weiping Zhou
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China.,New Medicine Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China
| | - Shuqi Zhao
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China.,New Medicine Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China
| | - Shulan Li
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China.,New Medicine Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China
| | - Dan Yan
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China.,New Medicine Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China
| | - Jun Wang
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China.,New Medicine Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China
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23
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Zhang CY, Zhang LJ, Lu ZC, Ma CY, Ye Y, Rahman K, Zhang H, Zhu JY. Antitumor Activity of Diterpenoids from Jatropha gossypiifolia: Cell Cycle Arrest and Apoptosis-Inducing Activity in RKO Colon Cancer Cells. JOURNAL OF NATURAL PRODUCTS 2018; 81:1701-1710. [PMID: 30106289 DOI: 10.1021/acs.jnatprod.7b01036] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nine new minor diterpenoids, jatrogossones A-I (1-9), and six known analogues (10-15) were separated from an extract of the branches and leaves of Jatropha gosspiifolia. Compounds 4-6 and 10, possessing a 5/11 fused-ring skeleton, and 8, 9, and 13, with a 5/9/5 fused-ring skeleton, represent rare diterpenoid skeletons that have been found only in compounds isolated from plants of the Jatropha genus. The absolute configurations of 1-10 were defined by using a combination of electronic circular dichroism data analysis and single-crystal X-ray diffraction data. The cytotoxicity of the diterpenoids was evaluated using RKO and LOVO colon cancer cells in which regenerating islet-derived protein 3-alpha (Reg3A) is highly expressed. Compound 12 exhibited cytotoxicity against RKO colon cancer cells with an IC50 value of 2.6 μM. Morphological features of apoptosis and antimigration activities were evaluated in 12-treated RKO cells. Compound 12 effectively induced apoptosis of RKO, which was associated with G2/M-phase cell cycle arrest. Flow cytometric analysis showed that the treatment by 12 significantly induced RKO cell apoptosis in a dose-dependent manner.
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Affiliation(s)
- Chun-Yan Zhang
- Central Laboratory , Seventh People's Hospital of Shanghai University of TCM , Shanghai 200137 , People's Republic of China
| | - Li-Jun Zhang
- Central Laboratory , Seventh People's Hospital of Shanghai University of TCM , Shanghai 200137 , People's Republic of China
| | - Zhi-Cheng Lu
- Medical Laboratory , Seventh People's Hospital of Shanghai University of TCM , Shanghai 200137 , People's Republic of China
| | - Chen-Yun Ma
- Medical Laboratory , Seventh People's Hospital of Shanghai University of TCM , Shanghai 200137 , People's Republic of China
| | - Ying Ye
- Central Laboratory , Seventh People's Hospital of Shanghai University of TCM , Shanghai 200137 , People's Republic of China
| | - Khalid Rahman
- Faculty of Science, School of Pharmacy and Biomolecular Sciences , Liverpool John Moores University , Liverpool L3 3AF , U.K
| | - Hong Zhang
- Central Laboratory , Seventh People's Hospital of Shanghai University of TCM , Shanghai 200137 , People's Republic of China
| | - Jian-Yong Zhu
- Central Laboratory , Seventh People's Hospital of Shanghai University of TCM , Shanghai 200137 , People's Republic of China
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24
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Qiu YS, Liao GJ, Jiang NN. REG3A overexpression suppresses gastric cancer cell invasion, proliferation and promotes apoptosis through PI3K/Akt signaling pathway. Int J Mol Med 2018; 41:3167-3174. [PMID: 29512686 PMCID: PMC5881806 DOI: 10.3892/ijmm.2018.3520] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 02/06/2018] [Indexed: 01/26/2023] Open
Abstract
Gastric cancer (GC) is the second most common cause of cancer-related deaths. In recent years some essential factors for resolution were identified, but the clinical trials still lack the effective methods to treat or monitor the disease progression. Regenerating islet-derived 3α (REG3A) is a member of REG protein family. Previous studies have investigated the altered expression of REG3A in various cancers. In this investigtion we aimed at the biological function and the underlying molecular mechanism of REG3A in GC. We found that REG3A was significantly downregulated in GC and closely related with patient prognoses. REG3A overexpression suppressed the invasion and proliferation promoting apoptosis of GC cells. While REG3A knockdown promoted the invasion, and proliferation suppressing apoptosis of GC cells. It was further found that REG3A performed its biological functions mainly through phosphatidylinositol 3 kinase (PI3K)/Akt-GSK3β signaling pathway axis. REG3A may be a promising therapeutic strategy for GC.
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Affiliation(s)
| | - Guang-Jun Liao
- Department of Bone Tumor, Yantai Shan Hospital, Yantai, Shandong 264000, P.R. China
| | - Ning-Ning Jiang
- Department of Bone Tumor, Yantai Shan Hospital, Yantai, Shandong 264000, P.R. China
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25
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Taman H, Fenton CG, Hensel IV, Anderssen E, Florholmen J, Paulssen RH. Transcriptomic Landscape of Treatment-Naïve Ulcerative Colitis. J Crohns Colitis 2018; 12:327-336. [PMID: 29040430 PMCID: PMC6290885 DOI: 10.1093/ecco-jcc/jjx139] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 10/09/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Ulcerative colitis [UC] is a chronic inflammatory disease that effects the gastrointestinal tract and is considered one of the most prominent and common forms of inflammatory bowel disease [IBD]. This study aimed to define and describe the entire transcriptomic landscape in a well-stratified, treatment-naïve UC patient population compared with control patients by using next-generation technology, RNA-Seq. METHODS Mucosal biopsies from treatment-naïve UC patients [n = 14], and healthy controls [n = 16] underwent RNA-Seq. Principal component analysis [PCA], cell deconvolution methods, and diverse statistical methods were applied to obtain and characterise a dataset of significantly differentially expressed genes [DEGs]. RESULTS Analyses revealed 1480 significantly DEGs in treatment-naïve UC when compared with controls. Cell populations of monocytes, T cells, neutrophils, B cells/ lymphoid cells, and myeloid cells were increased during inflammation, whereas the fraction of epithelial cells were reduced in UC, which is reflected by the DEGs; 79 DEGs were identified as IBD susceptibility genes, and 58 DEGs were expressed in a gender-specific manner. MUC5B, REG3A, DEFA5, and IL33 might be considered as colorectal cancer [CRC] risk factors following UC in males. AQP9 together with CLDN2 may have a role regulating tissue-specific physiological properties in tight junctions in UC. An additional functional role for AQP9 in the synthesis and/or the function of mucus can be implied. CONCLUSIONS This study reveals new potential players in UC pathogenesis in general, and provides evidence for a gender-dependent pathogenesis for UC. These results can be useful for the development of personalised treatment strategies for UC in the future.
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Affiliation(s)
- Hagar Taman
- Genomic Support Centre Tromsø [GSCT], Department of Clinical Medicine, UiT—The Arctic University of Norway, Tromsø, Norway
| | - Christopher G Fenton
- Genomic Support Centre Tromsø [GSCT], Department of Clinical Medicine, UiT—The Arctic University of Norway, Tromsø, Norway
| | - Inga V Hensel
- Genomic Support Centre Tromsø [GSCT], Department of Clinical Medicine, UiT—The Arctic University of Norway, Tromsø, Norway,Gastroenterology and Nutrition Research Group, Department of Clinical Medicine, UiT—The Artic University of Norway, Tromsø, Norway
| | - Endre Anderssen
- Genomic Support Centre Tromsø [GSCT], Department of Clinical Medicine, UiT—The Arctic University of Norway, Tromsø, Norway
| | - Jon Florholmen
- Gastroenterology and Nutrition Research Group, Department of Clinical Medicine, UiT—The Artic University of Norway, Tromsø, Norway,University Hospital of North Norway, Tromsø, Norway
| | - Ruth H Paulssen
- Genomic Support Centre Tromsø [GSCT], Department of Clinical Medicine, UiT—The Arctic University of Norway, Tromsø, Norway,Gastroenterology and Nutrition Research Group, Department of Clinical Medicine, UiT—The Artic University of Norway, Tromsø, Norway,Corresponding author: Ruth H. Paulssen, PhD, Department of Clinical Medicine, Gastroenterology and Nutrition Research Group, UiT—The Arctic University of Norway, Faculty of Health, Sykehusveien 38, N-9038 Tromsø, Norway. Tel.: +47 77 64 54 80;
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26
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Yao S, Luo Y, Zhang Z, Hu G, Zhu Z, Li F. Preclinical PET imaging of HIP/PAP using 1'- 18F-fluoroethyl- β-D-lactose. Oncotarget 2017; 8:75162-75173. [PMID: 29088854 PMCID: PMC5650409 DOI: 10.18632/oncotarget.20654] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 07/06/2017] [Indexed: 02/07/2023] Open
Abstract
Purpose This study aims at preclinical evaluation of a recently reported lactose analogue, 1'-18F-fluoroethyl-β-D-lactose (18F-FEL), in binding to hepatocarcinoma-intestine-pancreas and pancreatitis-associated protein (HIP/PAP) in vitro and in vivo. Methods In this study, a multifunctional module was employed for the automated synthesis of 18F-FEL. Additional radiochemical purity, biodistribution, in vitro and in vivo competition, metabolic stability and micro-PET studies were performed using T3M4 and SK-BR-3 xenografts. Expression of HIP/PAP in T3M4 and SK-BR-3 tumor sections and cell lines were tested with immunohistochemistry (IHC) and western blot analysis. Results The synthesis of 18F-FEL was completed in 30 min, with a radiochemical yield of 20 ± 5% and specific activity of 14.2 ± 7.1 GBq/μmol. 18F-FEL exhibited high HIP/PAP-binding affinity with a half maximal inhibitory concentration (IC50) of 22.0 ± 4.0 nM. 18F-FEL demonstrated high stability and specific tumor accumulation, which was reduced by approximately 80% in a PET competition assay by co-injection of β-D-lactose. High expression of HIP/PAP was detected in T3M4 tumors and cell line, but negative result was found for SK-BR-3 cell line. Conclusion 18F-FEL has a high binding property to HIP/PAP, high stability and excellent pharmacokinetics in vivo and therefore warrants further evaluation in a proof-of-concept study in humans.
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Affiliation(s)
- Shaobo Yao
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, 100730, China
| | - Yaping Luo
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, 100730, China
| | - Zhenzhong Zhang
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, 100730, China
| | - Guilan Hu
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, 100730, China
| | - Zhaohui Zhu
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, 100730, China
| | - Fang Li
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, 100730, China
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27
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Wang FQ, Han Y, Yao W, Yu J. Prognostic relevance of tripartite motif containing 24 expression in colorectal cancer. Pathol Res Pract 2017; 213:1271-1275. [PMID: 28916426 DOI: 10.1016/j.prp.2017.08.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 07/25/2017] [Accepted: 08/17/2017] [Indexed: 12/19/2022]
Abstract
Colorectal cancer is one of the most frequent malignancies in the world. Tripartite motif containing 24 (TRIM24) is a member of the TRIM protein family and a coregulator for multiple nuclear receptors. Altered expression of TRIM24 has been shown in a spectrum of human cancers. However, the clinical role of TRIM24 in colorectal cancer remains unknown. Here, gene expression data in colorectal cancer and normal tissues were downloaded from Gene Expression Omnibus (GEO). Western blotting analysis was conducted to compare TRIM24 expression between colorectal cancer and non-cancerous tissues. Immunohistochemistry staining were performed to assess TRIM24 expression in colorectal cancer tissues, and statistical analyses were employed to evaluate the associations of TRIM24 expression with clinicopathologic features and overall survival. TRIM24 mRNA and protein levels were higher in colorectal cancer tissues than that in the normal controls. TRIM24 protein expression was positively correlated with tumor size (P=0.0269), clinical stage (P=0.0061), vital status (P=0.0110) and serum carcinoembryonic antigen levels (P=0.0176). Kaplan-Meier survival analysis indicated that patients with higher TRIM24 expression had shorter survival time than those with lower TRIM24 expression. Multivariate analyses revealed TRIM24 expression was an independent prognostic factor (P<0.001). In conclusion, our study suggests that TRIM24 may play a role in colorectal carcinogens and serve as a potential prognostic marker of human colorectal cancer.
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Affiliation(s)
- Feng-Qin Wang
- Department of Pathology, The Central Hospital of Petrochina, Langfang, Hebei 065000, PR China.
| | - Yan Han
- Department of Pathology, The Affiliated Hospital of HeBei University of TCM, Shijiazhuang, Hebei 050000, PR China
| | - WenJuan Yao
- Department of Pathology, The Central Hospital of Petrochina, Langfang, Hebei 065000, PR China
| | - Jing Yu
- Department of Pathology, The Central Hospital of Petrochina, Langfang, Hebei 065000, PR China
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28
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Guo Y, Su ZY, Zhang C, Gaspar JM, Wang R, Hart RP, Verzi MP, Kong ANT. Mechanisms of colitis-accelerated colon carcinogenesis and its prevention with the combination of aspirin and curcumin: Transcriptomic analysis using RNA-seq. Biochem Pharmacol 2017; 135:22-34. [PMID: 28267439 PMCID: PMC5541256 DOI: 10.1016/j.bcp.2017.02.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Accepted: 02/28/2017] [Indexed: 12/14/2022]
Abstract
Colorectal cancer (CRC) remains the leading cause of cancer-related death in the world. Aspirin (ASA) and curcumin (CUR) are widely investigated chemopreventive candidates for CRC. However, the precise mechanisms of their action and their combinatorial effects have not been evaluated. The purpose of the present study was to determine the effect of ASA, CUR, and their combination in azoxymethane/dextran sulfate sodium (AOM/DSS)-induced colitis-accelerated colorectal cancer (CAC). We also aimed to characterize the differential gene expression profiles in AOM/DSS-induced tumors as well as in tumors modulated by ASA and CUR using RNA-seq. Diets supplemented with 0.02% ASA, 2% CUR or 0.01% ASA+1% CUR were given to mice from 1week prior to the AOM injection until the experiment was terminated 22weeks after AOM initiation. Our results showed that CUR had a superior inhibitory effect in colon tumorigenesis compared to that of ASA. The combination of ASA and CUR at a lower dose exhibited similar efficacy to that of a higher dose of CUR at 2%. RNA isolated from colonic tissue from the control group and from tumor samples from the experimental groups was subjected to RNA-seq. Transcriptomic analysis suggested that the low-dose combination of ASA and CUR modulated larger gene sets than the single treatment. These differentially expressed genes were situated in several canonical pathways important in the inflammatory network and liver metastasis in CAC. We identified a small subset of genes as potential molecular targets involved in the preventive action of the combination of ASA and CUR. Taken together, the current results provide the first evidence in support of the chemopreventive effect of a low-dose combination of ASA and CUR in CAC. Moreover, the transcriptional profile obtained in our study may provide a framework for identifying the mechanisms underlying the carcinogenesis process from normal colonic tissue to tumor development as well as the cancer inhibitory effects and potential molecular targets of ASA and CUR.
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Affiliation(s)
- Yue Guo
- Graduate Program in Pharmaceutical Science, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA; Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Zheng-Yuan Su
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA; Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan City 32023, Taiwan
| | - Chengyue Zhang
- Graduate Program in Pharmaceutical Science, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA; Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - John M Gaspar
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Rui Wang
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA; Shanghai Roche Pharmaceuticals Ltd, Shanghai 10020, China
| | - Ronald P Hart
- Department of Cell Biology and Neuroscience, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Michael P Verzi
- Department of Genetics, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Ah-Ng Tony Kong
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.
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Chen ZF, Huang ZM, Xue HB, Lin XQ, Chen RP, Chen MJ, Jin RF. REG3A promotes the proliferation, migration, and invasion of gastric cancer cells. Onco Targets Ther 2017; 10:2017-2023. [PMID: 28435292 PMCID: PMC5388263 DOI: 10.2147/ott.s131443] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The mechanism underlying the metastasis of gastric cancer (GC) cells remains elusive. REG3A is considered an oncogene in various cancers, but in GC its role is unclear. Here, we report that the expression of REG3A was significantly increased in the tumor tissues of patients with GC compared with the matched normal tissues. Knockdown of REG3A induced by specific small interfering RNA (siRNA) significantly repressed the proliferation of GC cells for 24 h or 48 h. Moreover, knockdown of REG3A significantly suppressed the migration, invasion, and adhesion of GC cells in vitro. Furthermore, knockdown of REG3A reduced the phosphorylation of JAK2 and STAT3, and altered the messenger RNA (mRNA) and protein expression levels of E-cadherin, Snail, RhoC, MTA1, MMP-2, and MMP-9. Taken together, REG3A is overexpressed in GC and promotes the proliferation, migration, invasion, and adhesion of GC cells by regulating the JAK2/STAT3 signal pathway. REG3A may be a potential therapeutic target for GC.
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Affiliation(s)
- Zhou-Feng Chen
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Zhi-Ming Huang
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Hai-Bo Xue
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Xiu-Qing Lin
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Ren-Ping Chen
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Meng-Jun Chen
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Rui-Fang Jin
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
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