Annals of Coloproctology

Display

Sort by :

Review

Colorectal cancer

Gut microbiome in colorectal cancer: recent advances and clinical implications: Jun Yong Han, Min Jung Kim, Ji Won Park, Seung-Yong Jeong; Ann Coloproctol. 2026;42(1):72-85. Published online February 25, 2026; DOI: https://doi.org/10.3393/ac.2026.00010.0001

1,743 View
65 Download
1 Citations

The gut microbiome is not just a bystander of colorectal carcinogenesis but is an active driver of colorectal cancer (CRC). CRC-associated microbiome contributes in the tumorigenesis through chronic inflammation, formation of toxic metabolite and genotoxins, oncogenic signal activation, immune evasion, and barrier disruption—all reinforcing a tumor microenvironment. In contrast, beneficial microbiome supports the barrier-immune-metabolic axis by maintaining mucosal integrity and balanced immune tone. Despite extensive studies of microbiome-based CRC biomarkers, microbiome-based CRC biomarkers have not been yet ready for routine clinical use due to variation across populations and lack of standardization of key steps such as sampling, analysis, cutoffs, and interpretation. Microbiome-based therapies aim to change the overall intestinal ecosystem rather than simply adding or removing single strains. At present, dietary modulation and prebiotics are considered supportive measures, while probiotics or synbiotics are in preclinical stage. Fecal microbiota transplantation (FMT) still faces important challenges in effectiveness, standardization and safety. By its role in reshaping the tumor–host immune environment, FMT is viewed as a potential option for cancer therapy after further development through well-controlled clinical trials with careful safety monitoring.

Citations

Citations to this article as recorded by

Over and above what is visible and conventional: development of new territories in colorectal cancer management
In Ja Park
Annals of Coloproctology.2026; 42(1): 1. CrossRef

Original Article

A Study of Epigenetic Alteration of the Bone Morphogenetic Protein-2 Gene in Human Colorectal Cancer.: Jang, Yong Sun , Kim, Kwang , Yun, Min Young , Choi, Sun Keun , Kim, Kyung Rae , Jang, Jun Hyeog , Koo, Ji Hoe; J Korean Soc Coloproctol. 2010;26(1):53-61.; DOI: https://doi.org/10.3393/jksc.2010.26.1.53

1,991 View
8 Download

Abstract PDF: PURPOSE
Bone morphogenetic proteins (BMPs) are members of the transforming growth factor-beta family and play an important role in cellular growth. Recent reports suggest that exogenous bone morphogenetic protein-2 (BMP-2) acts as an antiproliferative agent in a variety of cell lines. We will study whether BMP-2 is altered in human colorectal cancer.
METHODS
We analyzed 40 colorectal cancer cases and 6 colorectal cancer cell lines by using reverse transcription-polymerase chain reaction (RT-PCR) to determine the expression of BMP-2.
RESULTS
Thirteen of 40 colorectal cancers (33%) and 3 of 6 colorectal cancer cell lines (50%) revealed decreased expression of BMP-2. The rates of decreased expression were 0% (0/7), 42.1% (8/19), 28.6% (2/7), 33.3% (2/6), and 100% (1/1) in stages I, II, III, and IV, respectively. Histologically, the rates were 33.3% (2/6), 32.2% (10/21), 50% (1/2), and 0% (0/1) in well-differentiated, moderately-differentiated, poorly-differentiated and mucinous cancers, respectively. As for location, the rates for colon and rectal cancers were 27.8% (5/18) and 36.4% (8/22), respectively. We identified methylation in the CpG island of the BMP-2 gene in 60% of colorectal cancer cells and in 50% of colorectal cancer cell lines. The 13 cases without BMP-2 gene expression showed no significant correlation with clinicopathological factors. Epigenetic silencing through DNA methylation is one of the key steps during carcinogenesis.
CONCLUSION
We found, through an analysis using the methylation-specific polymerase chain reaction technique, CpG island methylation of the BMP-2 promoter region in colorectal cancer. Thus, aberrant BMP-2 methylation and the resultant loss of BMP-2 expression may be related to colorectal carcinogenesis.

First
Prev
Page of 1
Next
Last

Search