Ki-67 proliferating index and histological grade, type and stage of colorectal carcinoma
JAMC-Journal of Ayub Medical College-Abbotabad-Pakistan. 2008; 20 (4): 44-48
in English
| IMEMR
| ID: emr-101890
ABSTRACT
The objective of this study was to assess the relationship of histological type, grade and stage of colorectal carcinoma with proliferative activity as measured by Ki-67 LI. It was a descriptive study and conducted at the Department of Pathology, University of Health Sciences, Lahore. Ki-67 is a protein associated with cell proliferation and is expressed in all the phases of cell cycle except G0. In the present study, Ki-67 expression in 50 patients with colorectal adenocarcinomas was observed using immunohistochemistry with monoclonal antibody MIB-1. Ki-67 LI was high in well and moderately differentiated adenocarcinomas [mean Ki-67 LI 392.50 +/- 56.58 and 342.24 +/- 96.84 respectively] as compared to poorly differentiated adenocarcinomas [mean Ki-67 LI 250.00 +/- 113.46]. Ki- 67 LI was high in non mucinous adenocarcinomas than mucin secreting and signet ring cell adenocarcinomas [mean Ki-67 393.93 +/- 55.91 vs 220.00 +/- 49.72 and 200.00 +/- 79.05 respectively]. As regard the Dukes' staging, Ki-67 LI was high in colorectal carcinomas in Dukes' stage B than tumours in Dukes' stage C [Mean Ki-67 LI 360.13 +/- 90.03 vs 241.66 +/- 101.31 respectively]. The proliferative activity as measured by Ki-67 antibody is related to histological type, grade and stage
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Index:
IMEMR (Eastern Mediterranean)
Main subject:
Immunohistochemistry
/
Ki-67 Antigen
/
Cell Proliferation
Limits:
Female
/
Humans
/
Male
Language:
English
Journal:
J. Ayub Med. Coll.-Abbotabad-Pak.
Year:
2008
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