PMID- 12165657 OWN - NLM STAT- MEDLINE DCOM- 20030207 LR - 20191106 IS - 1046-3976 (Print) IS - 1046-3976 (Linking) VI - 13 IP - 2 DP - 2002 Summer TI - N-cadherin expression in adrenal tumors: upregulation in malignant pheochromocytoma and downregulation in adrenocortical carcinoma. PG - 99-110 AB - Cell adhesion molecules (CAMs) are important regulators of tumor growth. The aim of the present study was to evaluate the expression pattern of CAMs in adrenal tumors regarding origin (cortex vs medulla) and biologic behavior (benign vs malignant). Eighty seven adrenal tumors were investigated by immunocytochemistry (ICC) using monoclonal antibodies against N-cadherin (NCAD), E-cadherin (ECAD), neural cell adhesion molecule (NCAM), and CD44. Western blotting was performed on 30 tumors using the same antibodies. Markers for proliferation (Ki-67) and catecholamine synthesis (tyrosine hydroxylase) were also analyzed in tumors by ICC. NCAD was expressed in 12/27 benign pheochromocytomas (BPCs) (12 familial cases), 8/8 malignant pheochromocytomas (MPCs), 28/30 adrenocortical adenomas, and 9/22 adrenocortical carcinomas. ECAD was expressed in 0/27 BPCs, 0/8 MPCs, 0/30 adrenocortical adenomas, and 2/22 adrenocortical carcinomas. NCAM was expressed in 26/27 BPCs, 7/8 MPCs, 21/30 adrenocortical adenomas, and 17/22 adrenocortical carcinomas. CD44 was expressed in 23/27 BPCs, 6/8 MPCs, 7/30 adrenocortical adenomas, and 4/22 adrenocortical carcinomas. Both cortical and medullary adrenal tumors expressed NCAD, NCAM, and CD44 but were devoid of ECAD. The expression of CD44 and NCAM did not correlate with the malignant potential of tumors. NCAD was upregulated in MPCs, but downregulated in adrenocortical carcinoma. Thus, NCAD appears to be involved in the development of both cortical and medullary adrenal tumors. FAU - Khorram-Manesh, Amir AU - Khorram-Manesh A AD - Lundberg Laboratory for Cancer Research, Department of Surgery, Sahlgrenska University Hospital, Goteborg, Sweden. amir.khorram-manesh@surgery.gu.se FAU - Ahlman, Hakan AU - Ahlman H FAU - Jansson, Svante AU - Jansson S FAU - Nilsson, Ola AU - Nilsson O LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Endocr Pathol JT - Endocrine pathology JID - 9009288 RN - 0 (Cadherins) RN - 0 (Cell Adhesion Molecules) RN - 0 (Hyaluronan Receptors) RN - 0 (Ki-67 Antigen) RN - 0 (Neural Cell Adhesion Molecules) SB - IM MH - Adrenal Gland Neoplasms/*metabolism MH - Adrenocortical Adenoma/*metabolism MH - Adrenocortical Carcinoma/*metabolism MH - Blotting, Western MH - Cadherins/biosynthesis MH - Cell Adhesion Molecules/*biosynthesis MH - Humans MH - Hyaluronan Receptors/biosynthesis MH - Immunohistochemistry MH - Ki-67 Antigen/biosynthesis MH - Neural Cell Adhesion Molecules/biosynthesis MH - Pheochromocytoma/*metabolism MH - Prognosis MH - Up-Regulation EDAT- 2002/08/08 10:00 MHDA- 2003/02/08 04:00 CRDT- 2002/08/08 10:00 PHST- 2002/08/08 10:00 [pubmed] PHST- 2003/02/08 04:00 [medline] PHST- 2002/08/08 10:00 [entrez] AID - EP:13:2:099 [pii] AID - 10.1385/ep:13:2:099 [doi] PST - ppublish SO - Endocr Pathol. 2002 Summer;13(2):99-110. doi: 10.1385/ep:13:2:099.