Abstract:
:Activated leukocyte cell adhesion molecule (CD166) is a member of the immunoglobulin superfamily and is aberrantly expressed in different tumors, including prostate cancer. To learn more on the prevalence and clinical significance of activated leukocyte cell adhesion molecule expression in prostate cancer, a tissue microarray containing 3261 primary prostate cancers treated by radical prostatectomy was used. A total of 2390 different prostate cancers were analyzed by immunohistochemistry in a tissue microarray format. Activated leukocyte cell adhesion molecule immunostaining in cancers was compared with clinical follow-up, which was available for 1746 patients. Membranous activated leukocyte cell adhesion molecule immunostaining was recorded in 1663 (69.6%) of cases. High activated leukocyte cell adhesion molecule expression levels were significantly associated with favorable tumor features (pT: P = .0015; pN: P = .0008; preoperative prostate-specific antigen: P = .0057) and a lower risk of a biochemical recurrence (P = .0067). Cytoplasmatic activated leukocyte cell adhesion molecule staining was usually associated with membranous staining. The small number of cancers with pure cytoplasmatic staining did not reveal any particularities with respect to clinical outcome or tumor phenotype. It is concluded that activated leukocyte cell adhesion molecule protein is almost always expressed in prostate cancer and that decreased levels of activated leukocyte cell adhesion molecule expression may lead to an aggressive behavior of tumor cells. The abundant presence of activated leukocyte cell adhesion molecule and its membranous localization in prostate cancer epithelium make activated leukocyte cell adhesion molecule a potentially attractive structure for targeted therapy.
journal_name
Hum Patholjournal_title
Human pathologyauthors
Minner S,Kraetzig F,Tachezy M,Kilic E,Graefen M,Wilczak W,Bokemeyer C,Huland H,Sauter G,Schlomm Tdoi
10.1016/j.humpath.2011.02.017subject
Has Abstractpub_date
2011-12-01 00:00:00pages
1946-52issue
12eissn
0046-8177issn
1532-8392pii
S0046-8177(11)00115-8journal_volume
42pub_type
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