Relationship of hormones and growth factors to colon cancer.

Abstract:

:The role of hormones and growth factors in the pathogenesis and therapy of colon cancer is biologically intricate and medically important. The effects of the previously described hormones and growth factors on normal and neoplastic colonic growth and development suggest the mechanisms by which hormonal alteration might either enhance or suppress the cancer process. The high degree of association between the specific endocrine-related processes (breast cancer, acromegaly, hyperparathyroidism, gastrin sensitivity of colon cancer, and cancer cell lines) suggests a significant role for hormones in colonic carcinogenesis. The relationship between the specific hormones and cancers is often unclear. This is the result of many factors: the variable presence of specific hormone receptors on the surface of the tumor or cell line; the inconsistent response to exogeneous hormone administration in vivo and in vitro; and the occasional failure of specific hormone-blocking agents to affect cell proliferation. The relationship between growth factors and cancers is also unclear. The following questions must be resolved in order to understand the significance of growth factors and the neoplastic process: (1) Is a growth factor significant in either an autocrine or a paracrine capacity? (2) Are combinations of growth factors rather than individual growth factors more biologically significant? (3) Do structural alterations of the immunologically similar, but functionally different growth factors modify their effect on the neoplastic tissue? The potential for manipulation of hormones and growth factors in the prevention and treatment of colon cancer is evidence to date suggesting that such efforts are indeed justified.

authors

Conteas CN,Desai TK,Arlow FA

subject

Has Abstract

pub_date

1988-12-01 00:00:00

pages

761-72

issue

4

eissn

0889-8553

issn

1558-1942

journal_volume

17

pub_type

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