Distribution of laminin and collagen type-IV in benign and malignant lesions of melanocytic origin.

Abstract:

:Using antisera for two specific basement membrane (b.m.) antigens such as laminin and collagen type-IV, together with electron microscopy, we have shown that fully antigenic b.m. and morphologically typical basal lamina (b.l.) are associated with normal and transformed cells of the melanocyte lineage in different ways. Thus, while b.m. and b.l. surround individual choroidal melanocytes, intradermal nevus cells and cells of blue nevi are not detectable at the periphery of resting and proliferating epidermal melanocytes. They have a low degree of expression with a heterogeneous pattern of distribution in primary and metastatic melanoma. This heterogeneity is present within single metastases and among autologous metastases. These findings indicate that the presence of b.m. can be an additional marker for cells of the melanocyte lineage and should be considered when applying serological means for the detection and control of neoplasms of melanocytic origin.

journal_name

Int J Cancer

authors

Natali PG,Nicotra MR,Bellocci M,Cavaliere R,Bigotti A

doi

10.1002/ijc.2910350408

subject

Has Abstract

pub_date

1985-04-15 00:00:00

pages

461-7

issue

4

eissn

0020-7136

issn

1097-0215

journal_volume

35

pub_type

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