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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Colorectal cancer in a population with endemic Schistosoma mansoni: Is this an at-risk population?
International Journal of Colorectal Disease, Volume 22, No. 2, Year 2007
Notification
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Description
Purpose: Chronic infection with schistosomiasis has been clearly associated with the development of bladder cancer, and infestation is associated with a high incidence of colorectal cancer in endemic populations. Despite this association, the potential role of alterations in tumor suppressor genes colorectal cancers has never been evaluated in an endemically infected population. The aim of this paper was to compare histopathologic and genetic changes in schistosomal colitis-associated colorectal cancer (SCC) with colorectal cancer in a group of patients from the same population not affected by the disease (NDCC). Materials and methods: Sixty patients were included in this study: SCC - 40, NDCC - 20. Data collected included age, sex, clinical presentation, presence of synchronous tumors, histopathology, and clinical stage. p53, DCC (deleted in colorectal cancer gene), and mismatch repair genes (MLH1 and MSH2) were studied using immunohistochemical staining. Results: Patients with SCC were significantly younger than the NDCC group (34.52±11.22 years vs 50.73±12.75 years, p=0.02). Mucinous adenocarcinoma occurred significantly more frequently in SCC (35 vs 10%, p=0.02). SCC tumors were more frequently stage III or IV, and significantly more synchronous tumors were present in the affected group (SCC-8/40 vs NDCC-1/20, p=0.05). p53 staining was far more frequent in SCC (SCC-32/40 vs NDCC-8/20, p=0.006). DCC expression was similar in two groups. There were only four cases, three in SCC and one in NDCC, that showed microsatellite instability. Conclusion: The data suggest that schistosomal colitis is more commonly associated with earlier onset of multicentric colorectal cancer, high percentage of mucinous adenocarcinoma, and presents at an advanced stage. The identification of a higher incidence of altered p53 expression in the SCC group raises the possibility of an association between schistosomiasis and alterations in p53 activation as an inciting event in colorectal cancer development. © Springer-Verlag 2006.
Authors & Co-Authors
Madboulay, Khaled
Egypt, Alexandria
Faculty of Medicine
Senagore, Anthony J.
United States, Toledo
The University of Toledo
Mukerjee, Abir
Egypt, Alexandria
Faculty of Medicine
Hussein, Ahmed M.
Egypt, Alexandria
Faculty of Medicine
Shehata, M. A.
Egypt, Alexandria
Faculty of Medicine
Navine, Philippa
Egypt, Alexandria
Faculty of Medicine
Delaney, Conor P.
United States, Cleveland
Case Western Reserve University
Fazio, Victor Warren
United States, Cleveland
Case Western Reserve University
Statistics
Citations: 58
Authors: 8
Affiliations: 3
Identifiers
Doi:
10.1007/s00384-006-0144-3
ISSN:
01791958
Research Areas
Cancer
Genetics And Genomics
Infectious Diseases
Study Design
Cross Sectional Study
Cohort Study