Expression of complement regulator proteins in primary and metastatic malignant melanoma
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Expression of complement regulator proteins in primary and metastatic malignant melanoma. / Weichenthal, M; Siemann, U; Neuber, K; Breitbart, E W.
in: J CUTAN PATHOL, Jahrgang 26, Nr. 5, 05.1999, S. 217-21.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Expression of complement regulator proteins in primary and metastatic malignant melanoma
AU - Weichenthal, M
AU - Siemann, U
AU - Neuber, K
AU - Breitbart, E W
PY - 1999/5
Y1 - 1999/5
N2 - The expression of complement regulatory antigens C3b/C4b receptor, (CD35) membrane cofactor protein (CD46), decay accelerating factor (CD55), and homologous restriction factor 20 (CD59) was determined immunohistochemically on ten primary malignant melanomas, 16 metastatic lesions, and ten melanocytic nevi. All of the melanocytic nevi and 9/10 primary melanomas showed both expression of CD46 and CD59. In one primary melanoma lacking CD46, expression of CD35 could be detected. In metastatic melanoma, 9/16 metastases were CD46+/CD59+, two were CD46-/CD59+, one CD46+/CD59-, and four CD46-/CD59-. Additionally, CD55 could be detected in two CD46+/CD59+ metastases, and CD35 in one. Expression or lack of complement regulatory antigens did not correlate with the expression of GD2, GD3, HMB-45 or S-100. In conclusion, some cases of metastatic melanoma show loss of normal expression of complement regulatory proteins. This might have implications on the immune response or the efficacy of immune therapy in malignant melanoma.
AB - The expression of complement regulatory antigens C3b/C4b receptor, (CD35) membrane cofactor protein (CD46), decay accelerating factor (CD55), and homologous restriction factor 20 (CD59) was determined immunohistochemically on ten primary malignant melanomas, 16 metastatic lesions, and ten melanocytic nevi. All of the melanocytic nevi and 9/10 primary melanomas showed both expression of CD46 and CD59. In one primary melanoma lacking CD46, expression of CD35 could be detected. In metastatic melanoma, 9/16 metastases were CD46+/CD59+, two were CD46-/CD59+, one CD46+/CD59-, and four CD46-/CD59-. Additionally, CD55 could be detected in two CD46+/CD59+ metastases, and CD35 in one. Expression or lack of complement regulatory antigens did not correlate with the expression of GD2, GD3, HMB-45 or S-100. In conclusion, some cases of metastatic melanoma show loss of normal expression of complement regulatory proteins. This might have implications on the immune response or the efficacy of immune therapy in malignant melanoma.
KW - Adolescent
KW - Adult
KW - Aged
KW - Aged, 80 and over
KW - Antigens, CD/biosynthesis
KW - Antigens, Neoplasm/metabolism
KW - Child
KW - Female
KW - Gangliosides/metabolism
KW - Humans
KW - Immunohistochemistry
KW - Male
KW - Melanoma/metabolism
KW - Melanoma-Specific Antigens
KW - Middle Aged
KW - Neoplasm Proteins/metabolism
KW - Nevus, Pigmented/metabolism
KW - S100 Proteins/metabolism
KW - Skin Neoplasms/metabolism
U2 - 10.1111/j.1600-0560.1999.tb01833.x
DO - 10.1111/j.1600-0560.1999.tb01833.x
M3 - SCORING: Journal article
C2 - 10408345
VL - 26
SP - 217
EP - 221
JO - J CUTAN PATHOL
JF - J CUTAN PATHOL
SN - 0303-6987
IS - 5
ER -