Jotwani, Geeta ; Misra, Anjan ; Chattopadhyay, Parthaprasad ; Sarkar, Chitra ; Mahapatra, Ashok Kumar ; Sinha, Subrata (2001) Genetic heterogeneity and alterations in chromosome 9 loci in a localized region of a functional pituitary adenoma Cancer Genetics and Cytogenetics, 125 (1). pp. 41-45. ISSN 0165-4608
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Abstract
The molecular alterations reported in pituitary adenomas include mutations at the Gsα in somatotrophinomas, and hypermethylation of the p16 tumor suppressor gene. There are, however, no reports of genomic instability or intratumor genetic heterogeneity in pituitary adenomas. We have studied the microsatellite loci on the short arm of chromosome 9 (9p) and the DNA fingerprinting pattern, of adjacent compartments, about 2 mm across, in a functional chromophobe pituitary adenoma secreting growth hormone and prolactin. The microsatellite loci were studied by PCR amplification using locus specific primers, while the DNA fingerprinting pattern was studied by randomly amplified polymorphic DNA (RAPD) analysis. Normal leukocyte DNA was taken as control. Only one compartment (Ta) showed alterations in several of the microsatellite loci and in the RAPD pattern vis a vis corresponding normal DNA and also the other two compartments of the tumor. This provides evidence for the localized nature of genomic instability in this tumor.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
ID Code: | 56375 |
Deposited On: | 23 Aug 2011 11:46 |
Last Modified: | 16 Nov 2011 14:26 |
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