Expression of SPANX proteins in normal prostatic tissue and in prostate cancer

The sperm protein associated with the nucleus in the X chromosome (SPANX) gene family encode for proteins that are not only expressed in germ cells, but also in a number of tumors. In addition, SPANX genes map in an interval of the X chromosome (namely, Xq27), which has been found to be associated w...

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Main Authors: M. Salemi, A. E. Calogero, G. Zaccarello, R. Castiglione, A. Cosentino, C. Campagna, E. Vicari, G. Rappazzo
Format: Article
Language:English
Published: PAGEPress Publications 2010-09-01
Series:European Journal of Histochemistry
Subjects:
Online Access:http://www.ejh.it/index.php/ejh/article/view/1754
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author M. Salemi
A. E. Calogero
G. Zaccarello
R. Castiglione
A. Cosentino
C. Campagna
E. Vicari
G. Rappazzo
author_facet M. Salemi
A. E. Calogero
G. Zaccarello
R. Castiglione
A. Cosentino
C. Campagna
E. Vicari
G. Rappazzo
author_sort M. Salemi
collection DOAJ
description The sperm protein associated with the nucleus in the X chromosome (SPANX) gene family encode for proteins that are not only expressed in germ cells, but also in a number of tumors. In addition, SPANX genes map in an interval of the X chromosome (namely, Xq27), which has been found to be associated with familial prostate cancer by linkage analysis. The aim of this study was therefore to evaluate SPANX protein expression in normal prostate tissues and in prostate carcinoma. For this purpose, formalin-fixed and paraffin-embedded sections obtained from 15 normal (at autopsy) donors and 12 men with prostate cancer were analyzed by immunohistochemistry. About 40% of both normal and tumor prostate samples resulted SPANX positive. Signals were exclusively with the nucleus in normal prostate cells, whereas both nuclear and cytoplasmic positivity was observed in tumor cells. In conclusion, these findings showed that SPANX genes are expressed in both normal and tumor prostate gland, but the latter showed a peculiar cytoplasmic staining positivity. This suggests a possible association between SPANX over expression and prostate cancer development. Additional studies are needed to corroborate this hypothesis.
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spelling doaj.art-b1a77a4b0c254b86979a5be5529bfd842022-12-22T01:27:48ZengPAGEPress PublicationsEuropean Journal of Histochemistry1121-760X2038-83062010-09-01543e41e4110.4081/ejh.2010.e411150Expression of SPANX proteins in normal prostatic tissue and in prostate cancerM. SalemiA. E. CalogeroG. ZaccarelloR. CastiglioneA. CosentinoC. CampagnaE. VicariG. RappazzoThe sperm protein associated with the nucleus in the X chromosome (SPANX) gene family encode for proteins that are not only expressed in germ cells, but also in a number of tumors. In addition, SPANX genes map in an interval of the X chromosome (namely, Xq27), which has been found to be associated with familial prostate cancer by linkage analysis. The aim of this study was therefore to evaluate SPANX protein expression in normal prostate tissues and in prostate carcinoma. For this purpose, formalin-fixed and paraffin-embedded sections obtained from 15 normal (at autopsy) donors and 12 men with prostate cancer were analyzed by immunohistochemistry. About 40% of both normal and tumor prostate samples resulted SPANX positive. Signals were exclusively with the nucleus in normal prostate cells, whereas both nuclear and cytoplasmic positivity was observed in tumor cells. In conclusion, these findings showed that SPANX genes are expressed in both normal and tumor prostate gland, but the latter showed a peculiar cytoplasmic staining positivity. This suggests a possible association between SPANX over expression and prostate cancer development. Additional studies are needed to corroborate this hypothesis.http://www.ejh.it/index.php/ejh/article/view/1754cancerprostateimmunohistochemistrySPANX genes,
spellingShingle M. Salemi
A. E. Calogero
G. Zaccarello
R. Castiglione
A. Cosentino
C. Campagna
E. Vicari
G. Rappazzo
Expression of SPANX proteins in normal prostatic tissue and in prostate cancer
European Journal of Histochemistry
cancer
prostate
immunohistochemistry
SPANX genes,
title Expression of SPANX proteins in normal prostatic tissue and in prostate cancer
title_full Expression of SPANX proteins in normal prostatic tissue and in prostate cancer
title_fullStr Expression of SPANX proteins in normal prostatic tissue and in prostate cancer
title_full_unstemmed Expression of SPANX proteins in normal prostatic tissue and in prostate cancer
title_short Expression of SPANX proteins in normal prostatic tissue and in prostate cancer
title_sort expression of spanx proteins in normal prostatic tissue and in prostate cancer
topic cancer
prostate
immunohistochemistry
SPANX genes,
url http://www.ejh.it/index.php/ejh/article/view/1754
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AT rcastiglione expressionofspanxproteinsinnormalprostatictissueandinprostatecancer
AT acosentino expressionofspanxproteinsinnormalprostatictissueandinprostatecancer
AT ccampagna expressionofspanxproteinsinnormalprostatictissueandinprostatecancer
AT evicari expressionofspanxproteinsinnormalprostatictissueandinprostatecancer
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