|
1
|
Shin WS, Xie F, Chen B, Yu J, Lo KW, Tse GMK, To KF, Kang W. Exploring the Microbiome in Gastric Cancer: Assessing Potential Implications and Contextualizing Microorganisms beyond H. pylori and Epstein-Barr Virus. Cancers (Basel) 2023; 15:4993. [PMID: 37894360 PMCID: PMC10605912 DOI: 10.3390/cancers15204993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
While previous research has primarily focused on the impact of H. pylori and Epstein-Barr virus (EBV), emerging evidence suggests that other microbial influences, including viral and fungal infections, may also contribute to gastric cancer (GC) development. The intricate interactions between these microbes and the host's immune response provide a more comprehensive understanding of gastric cancer pathogenesis, diagnosis, and treatment. The review highlights the roles of established players such as H. pylori and EBV and the potential impacts of gut bacteria, mainly Lactobacillus, Streptococcus, hepatitis B virus, hepatitis C virus, and fungi such as Candida albicans. Advanced sequencing technologies offer unprecedented insights into the complexities of the gastric microbiome, from microbial diversity to potential diagnostic applications. Furthermore, the review highlights the potential for advanced GC diagnosis and therapies through a better understanding of the gut microbiome.
Collapse
Affiliation(s)
- Wing Sum Shin
- State Key Laboratory of Translational Oncology, Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong 999077, China; (W.S.S.); (F.X.); (B.C.); (K.W.L.); (G.M.K.T.); (K.F.T.)
| | - Fuda Xie
- State Key Laboratory of Translational Oncology, Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong 999077, China; (W.S.S.); (F.X.); (B.C.); (K.W.L.); (G.M.K.T.); (K.F.T.)
- State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong 999077, China;
- CUHK—Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen 518000, China
| | - Bonan Chen
- State Key Laboratory of Translational Oncology, Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong 999077, China; (W.S.S.); (F.X.); (B.C.); (K.W.L.); (G.M.K.T.); (K.F.T.)
- State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong 999077, China;
- CUHK—Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen 518000, China
| | - Jun Yu
- State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong 999077, China;
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Kwok Wai Lo
- State Key Laboratory of Translational Oncology, Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong 999077, China; (W.S.S.); (F.X.); (B.C.); (K.W.L.); (G.M.K.T.); (K.F.T.)
| | - Gary M. K. Tse
- State Key Laboratory of Translational Oncology, Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong 999077, China; (W.S.S.); (F.X.); (B.C.); (K.W.L.); (G.M.K.T.); (K.F.T.)
| | - Ka Fai To
- State Key Laboratory of Translational Oncology, Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong 999077, China; (W.S.S.); (F.X.); (B.C.); (K.W.L.); (G.M.K.T.); (K.F.T.)
- State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong 999077, China;
| | - Wei Kang
- State Key Laboratory of Translational Oncology, Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong 999077, China; (W.S.S.); (F.X.); (B.C.); (K.W.L.); (G.M.K.T.); (K.F.T.)
- State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong 999077, China;
- CUHK—Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen 518000, China
| |
Collapse
|
|
2
|
Wang Y, Cao Z, Wang L, Liu S, Cai J. Downregulation of microRNA-142-3p and its tumor suppressor role in gastric cancer. Oncol Lett 2018; 15:8172-8180. [PMID: 29849811 DOI: 10.3892/ol.2018.8330] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 02/23/2018] [Indexed: 12/17/2022] Open
Abstract
An increasing number of studies indicate that microRNAs (miRNAs) may exert an oncogenic or tumor suppressive role in diverse types of cancer. MicroRNA (miR)-142-3p has been detected to be downregulated in a number of cancer types, and it may function as a tumor suppressor. However, the expression profile and potential role of miR-142-3p in gastric cancer remain unknown. In the present study, the expression of miR-142-3p in numerous gastric cancer samples was investigated. It was observed that miR-142-3p was markedly downregulated in cancer tissues compared with normal tissues. Furthermore, a low expression level of miR-142-3p was associated with higher tumor stages. The overexpression of miR-142-3p was able to inhibit the proliferation, invasion and migration of gastric cancer cells. A further investigation into the mechanism underlying the effect of miR-142-3p identified cyclin T2 (CCNT2) as a target of miR-142-3p in gastric cancers. miR-142-3p may exert its tumor suppressor role partially by downregulating CCNT2. These results suggested that the abnormal downregulation of miR-142-3p and the subsequent increase in CCNT2 expression may have an important role in gastric cancer carcinogenesis.
Collapse
Affiliation(s)
- Yi Wang
- Department of VIP, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, P.R. China
| | - Zhidong Cao
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China.,Department of Orthopedics, The Emergency Medical Center of Chongqing, Chongqing 400014, P.R. China
| | - Lanlan Wang
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100005, P.R. China
| | - Siqi Liu
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100005, P.R. China
| | - Jianqiang Cai
- Department of Hepatobiliary Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, P.R. China
| |
Collapse
|
|
3
|
Abstract
Gastric cancer has high morbidity and mortality. Identification of patients with high gastric cancer risk at early stage will improve patient prognosis. In this study, we examined two single nucleotide polymorphism (SNP) sites of COX-2 gene in gastric cancer patients and explored the effect of the SNPs on the morbidity of gastric cancer. We found that the SNPs COX-2-1195G/A and COX-2-8473T/C are correlated with the occurrence of gastric cancer, and the patients with variants A and C of the SNPs are liable to have gastric cancer. Our study provides a potential method for screening of susceptible population of gastric cancer for early-stage intervention in patients.
Collapse
|