Journal of Postgraduate Medicine
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Year : 2015  |  Volume : 61  |  Issue : 1  |  Page : 15-20

Cyclin D1 and Ki-67 expression in normal, hyperplastic and neoplastic endometrium

Department of Pathology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India

Correspondence Address:
Dr. A Ghosh
Department of Pathology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0022-3859.147025

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Background: Proliferation and differentiation of cancer cells are regulated by various cell cycle promoting and inhibiting factors. Our knowledge about these proteins and mechanisms regulating cell cycle progression has increased dramatically in recent years. Aim: The present study was undertaken to examine the expression profile of cell cycle regulatory proteins in normal proliferative endometrium, hyperplasias (simple, complex and atypical) and endometrial carcinoma in a quantitative approach as also to assess correlations of Cyclin D1 expression with Ki-67 a proliferation marker. Settings and Design: A retrospective case control study in a tertiary referral centre. Materials and Methods: We evaluated and compared the expression profile of Cyclin D1 and Ki-67 expressions in 61 endometrial samples submitted as either endometrial curetting or hysterectomy specimens, which were diagnosed as simple hyperplasia (n =11), complex hyperplasia (n = 13), atypical hyperplasia (n = 7), and endometrial carcinoma (n = 20). Results: There was increased expression of Cyclin D1 and Ki-67 in patients with endometrial carcinoma relative to proliferative endometrium and simple hyperplasia, but there was no such difference between cases of atypical hyperplasia and endometrial carcinoma. Cyclin D1 expression had a positive correlation with Ki-67 expression. Cyclin D1 together with Ki-67 may be a marker for endometrial carcinogenesis and tumor cell proliferation.


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Online since 12th February '04
2004 - Journal of Postgraduate Medicine
Official Publication of the Staff Society of the Seth GS Medical College and KEM Hospital, Mumbai, India
Published by Wolters Kluwer - Medknow