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Safatle-Ribeiro AV, Jr UR. Is gastric cancer after bariatric surgery on the rise? Will history repeat itself? Chin J Cancer Res 2023; 35:11-14. [PMID: 36910856 PMCID: PMC9993001 DOI: 10.21147/j.issn.1000-9604.2023.01.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 01/12/2023] [Indexed: 03/14/2023] Open
Affiliation(s)
- Adriana Vaz Safatle-Ribeiro
- Department of Gastroenterology, Instituto do Cancer do Estado de São Paulo, Hospital das Clinicas, Faculdade de Medicina, Universidade de São Paulo, (ICESP-HCFMUSP) São Paulo, SP 01246-000, Brazil
| | - Ulysses Ribeiro Jr
- Department of Gastroenterology, Instituto do Cancer do Estado de São Paulo, Hospital das Clinicas, Faculdade de Medicina, Universidade de São Paulo, (ICESP-HCFMUSP) São Paulo, SP 01246-000, Brazil
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Chemaly R, Diab S, Khazen G, Al-Hajj G. Gastroesophageal Cancer After Gastric Bypass Surgeries: a Systematic Review and Meta-analysis. Obes Surg 2022; 32:1300-1311. [PMID: 35084611 DOI: 10.1007/s11695-022-05921-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 01/13/2022] [Accepted: 01/14/2022] [Indexed: 12/11/2022]
Abstract
Data comparing the occurrence of gastroesophageal cancer after gastric bypass procedures are lacking and are only available in the form of case reports. We perform in this study a systematic review and a meta-analysis of all the reported cases of gastroesophageal cancer following Roux-en-Y gastric bypass (RYGB) and loop gastric bypass-one anastomosis gastric bypass/mini gastric bypass (LGB-OAGB/MGB). We conducted a systematic review of all the reported cases in articles referenced in PubMed/Medline, Cochrane, and Scholar Google. Only cases of gastro-esophageal adenocarcinoma following RYGB or LGB-OAGB/MGB are included. Statistical analysis was done accordingly. Fifty cases were identified, along with 2 reported in this paper. Sixty-one percent (27/44) of the cancers after RYGB were in the gastric tube compared to 37.5% (3/8) after LGB-OAGB/MGB. This resulted in an odds ratio of 0.38 (p-value = 0.26), which failed to prove an increase in cancer occurrence in the gastric tube after LGB-MGB/OAGB compared to RYGB. The most common symptoms were dysphagia for cancers occurring in the gastric tube (15/30) and abdominal pain for those occurring in the excluded stomach (10/22). Twenty-nine/thirty of the cancers in the gastric tube were diagnosed by gastroscopy and 13/22 of the cancers in the excluded stomach were diagnosed by CT scan. Gastroesophageal cancers after gastric bypass procedures occur commonly in the excluded stomach where many are not identified by conventional means. Physician awareness and patient education as well as lifelong follow-up are essential for maintaining bypass surgeries on the beneficial side.
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Affiliation(s)
- Rodrigue Chemaly
- Department of General Surgery, Lebanese American University Medical Center - Rizk Hospital, LAU Gilbert and Rose-Marie Chagoury School of Medicine, Beirut, Lebanon. .,Department of General Surgery, Middle East Institute of Health (MEIH), Bsalim, Lebanon.
| | - Samer Diab
- Department of General Surgery, Lebanese American University Medical Center - Rizk Hospital, LAU Gilbert and Rose-Marie Chagoury School of Medicine, Beirut, Lebanon
| | - Georges Khazen
- Department of Computer Science and Mathematical, Lebanese American University, Beirut, Lebanon
| | - Georges Al-Hajj
- Department of General Surgery, Lebanese American University Medical Center - Rizk Hospital, LAU Gilbert and Rose-Marie Chagoury School of Medicine, Beirut, Lebanon.,Department of General Surgery, Middle East Institute of Health (MEIH), Bsalim, Lebanon
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He Y, Shi Q, Zhang Y, Yuan X, Yu Z. Transcriptome-Wide 5-Methylcytosine Functional Profiling of Long Non-Coding RNA in Hepatocellular Carcinoma. Cancer Manag Res 2020; 12:6877-6885. [PMID: 32801911 PMCID: PMC7414925 DOI: 10.2147/cmar.s262450] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 07/19/2020] [Indexed: 12/11/2022] Open
Abstract
Background Growing evidence indicates that methylation status is associated with the pathogenesis of numerous types of cancers. Among these, hepatocellular carcinoma (HCC) is a deadly disease threatening global human health. Although 5-methylcytosine (m5C) has been identified as an important regulatory modification, its distribution in solid tumors, including HCC, remains unclear. The present study aimed to explore the distribution of m5C in HCC. Materials and Methods Six pairs of human HCC tissues and adjacent non-tumor tissues were collected to analyze the transcriptome-wide m5C methylation of long non-coding RNA (lncRNA). RNA MeRIP-seq was performed to identify m5C peaks on lncRNA and differences in m5C distribution between HCC and adjacent tissues. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment pathway analyses were explored to predict the possible roles of m5C. Results Using m5C peak sequencing, we observed that a sequence motif was necessary for m5C methylation in HCC lncRNA. Unsupervised hierarchical cluster analysis confirmed that lncRNA m5C methylation occurred more frequently in HCC than adjacent non-tumor tissues. RNA sequencing data demonstrated that more genes were up-regulated by methylation in HCC, while methylation down-regulated more genes in adjacent non-tumor tissues. GO and KEGG pathway analyses revealed that genes having a significant correlation with m5C sites in lncRNA were involved in HCC signaling pathways. Conclusion Our results revealed the substantially different amounts and distributions of m5C in HCC compared to adjacent non-tumor tissue. We further predicted the cellular functions in HCC that m5C may participate in to provide evidence implicating m5C lncRNA epigenetic regulation in the tumorigenesis and progression in HCC.
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Affiliation(s)
- Yuting He
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China.,Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China
| | - Qingmiao Shi
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China.,Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China
| | - Yize Zhang
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China.,Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China
| | - Xin Yuan
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China.,Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China
| | - Zujiang Yu
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China.,Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China
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