Metallothionein in testicular germ cell tumors and drug resistance. Clinical correlation.

Abstract:

BACKGROUND:Metallothioneins (MT) are endogenous metalloproteins involved in the homeostasis of essential metals and detoxification of toxic metals. Some recent experimental studies suggested tumor resistance to cisdiamminedichloroplatin may be associated with overexpression of MT in the tumor. METHODS:The presence of MT in 33 primary testicular germ cell tumor specimens was assessed immunohistochemically using a rabbit polyclonal rat liver MT antibody that cross-reacted with human MT. The data were correlated with the patients' clinical course. RESULTS:Seminomas stained weakly or not at all for MT, regardless of the clinical stage. Most nonseminomas stained heavily for MT. The more advanced staged nonseminomas tended to stain more heavily for MT. CONCLUSIONS:In view of the considerable experimental evidence as well as some inferential clinical data involving MT in cis-diamminedichloroplatin resistance, there appears to be a role for MT in cis-diamminedichloroplatin resistance in germ cell tumors. Further studies to elucidate the role of MT in germ cell tumor chemoresistance are warranted.

journal_name

Cancer

journal_title

Cancer

authors

Chin JL,Banerjee D,Kadhim SA,Kontozoglou TE,Chauvin PJ,Cherian MG

doi

10.1002/1097-0142(19931115)72:10<3029::aid-cncr282

subject

Has Abstract

pub_date

1993-11-15 00:00:00

pages

3029-35

issue

10

eissn

0008-543X

issn

1097-0142

journal_volume

72

pub_type

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