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Comprehensive RNA-sequencing analysis of colorectal cancer in a Korean cohort
Jaeim Lee,Jong-Hwan Kim,Hoang Bao Khanh Chu,Seong-Taek Oh,Sung-Bum Kang,Sejoon Lee,Duck-Woo Kim,Heung-Kwon Oh,Ji-Hwan Park,Jisu Kim,Jisun Kang,Jin-Young Lee,Sheehyun Cho,Hyeran Shim,Hong Seok Lee,Seon Korean Society for Molecular and Cellular Biology 2024 Molecules and cells Vol.47 No.3
Considering the recent increase in the number of colorectal cancer (CRC) cases in South Korea, we aimed to clarify the molecular characteristics of CRC unique to the Korean population. To gain insights into the complexities of CRC and promote the exchange of critical data, RNA-sequencing analysis was performed to reveal the molecular mechanisms that drive the development and progression of CRC; this analysis is critical for developing effective treatment strategies. We performed RNA-sequencing analysis of CRC and adjacent normal tissue samples from 214 Korean participants (comprising a total of 381 including 169 normal and 212 tumor samples) to investigate differential gene expression between the groups. We identified 19,575 genes expressed in CRC and normal tissues, with 3,830 differentially expressed genes (DEGs) between the groups. Functional annotation analysis revealed that the upregulated DEGs were significantly enriched in pathways related to the cell cycle, DNA replication, and IL-17, whereas the downregulated DEGs were enriched in metabolic pathways. We also analyzed the relationship between clinical information and subtypes using the Consensus Molecular Subtype (CMS) classification. Furthermore, we compared groups clustered within our dataset to CMS groups and performed additional analysis of the methylation data between DEGs and CMS groups to provide comprehensive biological insights from various perspectives. Our study provides valuable insights into the molecular mechanisms underlying CRC in Korean patients and serves as a platform for identifying potential target genes for this disease. The raw data and processed results have been deposited in a public repository for further analysis and exploration.
Comprehensive RNA-sequencing analysis of colorectal cancer in a Korean cohort
Kil-yong Lee,Jaeim Lee,Jong Hwan Kim,Hoang Bao Khanh Chu,Seong-Taek Oh,Sung-Bum Kang,Sejoon Lee,Duck-Woo Kim,Heung-Kwon Oh,Ji-Hwan Park,Ji-Su Kim,Jisun Kang,Jin-Young Lee,Sheehyun Cho,심혜란,Hong Seok Le 한국분자세포생물학회 2024 Molecules and cells Vol.47 No.1
Considering the recent increase in the number of colorectal cancer (CRC) cases in South Korea, we aimed to clarify the molecular characteristics of CRC unique to the Korean population. To gain insights into the complexities of CRC and promote the exchange of critical data, RNA-sequencing analysis was performed to reveal the molecular mechanisms that drive the development and progression of CRC; this analysis is critical for developing effective treatment strategies. We performed RNA-sequencing analysis of CRC and adjacent normal tissue samples from 214 Korean participants (comprising a total of 381 including 169 normal and 212 tumor samples) to investigate differential gene expression between the groups. We identified 19,575 genes expressed in CRC and normal tissues, with 3,830 differentially expressed genes (DEGs) between the groups. Functional annotation analysis revealed that the upregulated DEGs were significantly enriched in pathways related to the cell cycle, DNA replication, and IL-17, whereas the downregulated DEGs were enriched in metabolic pathways. We also analyzed the relationship between clinical information and subtypes using the Consensus Molecular Subtype (CMS) classification. Furthermore, we compared groups clustered within our dataset to CMS groups and performed additional analysis of the methylation data between DEGs and CMS groups to provide comprehensive biological insights from various perspectives. Our study provides valuable insights into the molecular mechanisms underlying CRC in Korean patients and serves as a platform for identifying potential target genes for this disease. The raw data and processed results have been deposited in a public repository for further analysis and exploration.
Kil-yong Lee,Jaeim Lee,Dongjae Kim,Seong Taek Oh 대한외과학회 2024 Annals of Surgical Treatment and Research(ASRT) Vol.106 No.4
Purpose: This study evaluated the difference in the recurrence of inguinal hernia in young adult patients who underwent either high ligation alone or high ligation with posterior wall repair using nationwide data. Methods: This retrospective study included young adult patients (aged 16–30 years) who underwent surgery for inguinal hernia between June 1, 2013 and December 31, 2020. Data from the National Health Information Database from the Korea Health Insurance Service were used for this study. Patients were divided into 2 groups (high ligation alone and posterior wall repair). The primary outcome was the difference in recurrent inguinal hernia surgeries between the 2 groups. Results: Among the 10,803 patients included in the study, 947 underwent high ligation alone, and 9,856 underwent high ligation with posterior wall repair. Recurrence was observed in 18 patients (1.9%) in the high ligation only group and 84 (0.85%) in the high ligation with posterior wall repair group. Log-rank test findings revealed that recurrence was less frequent in the high ligation with posterior wall repair group than in the high ligation only group (P = 0.003). In the multivariate analysis of factors influencing recurrence, posterior wall repair (hazard ratio, 0.241; P = 0.001) was shown to significantly lower the recurrence. Conclusion: Posterior wall repair might be necessary for inguinal hernia repair in young adults.
Choi Young Sun,Lee Kil-young,Park Youn Young,Kim Hyung Jin,Lee Jaeim 대한대장항문학회 2023 Annals of Coloproctolgy Vol.39 No.2
Metachronous carcinoma at the colostomy site is very rare after abdominoperineal resection. A 53-year-old male patient underwent an abdominoperineal resection 6 years earlier for rectal cancer developed metachronous carcinoma at the site of stoma. A portion of the colon, including the stoma and the surrounding skin, was resected and a new stoma was created in the transverse colon. Although the occurrence of carcinoma at the stoma site is a rare condition, careful observation for the stoma and colonoscopy for surveillance are necessary.