Searchable abstracts of presentations at key conferences in endocrinology

ea0032p665 | Male reproduction | ECE2013

Immunohistochemical detection of Prok1 and ProkR1 in normal testis and germ cell tumour tissue microarrays

Gigantino Vincenzo , Franco Renato , Chieffi Paolo , Palumbo Vincenzo , Cioffi Iolanda , De Masi Adriana , Agostino Sinisi Antonio

Prokineticins (Prok1 and Prok2) are chemokine-like peptides, which regulate through two G-protein-coupled receptors, ProkR1 and ProkR2, different physiological and pathological functions. Prok1 plays a significant role in tumour development and progression in several tissues. There are few data on the involvement of Prok1 and ProkR1 in testicular cancer. Aim of this study was to evaluate the expression of Prok1 and ProkR1 in a series of testicular germ cell tumours (GCT).<...

ea0022p401 | Endocrine tumours &amp; neoplasia (<emphasis role="italic">Generously supported by Novartis</emphasis>) | ECE2010

Down-regulation of estrogen receptor-β associates with transcriptional coregulator PATZ1 delocalization in human testicular seminomas

Esposito Francesco , Franco Renato , Fedele Monica , Fusco Alfredo , Chieffi Paolo , Bosica Francesca

PATZ1 is a recently discovered zinc finger protein that, due to the presence of the POZ domain, acts as a transcriptional repressor affecting the basal activity of different promoters, and associates with a variety of transcription factors (i.e. RNF4, HMGA1, gscl, SPBP). We have previously described, by using mice lacking the PATZ1 gene, its crucial role in spermatogenesis. Consistently, PATZ1-KO mice are unfertile and testes from these mice showed only few spermatocyte...

ea0022p451 | Endocrine tumours &amp; neoplasia (<emphasis role="italic">Generously supported by Novartis</emphasis>) | ECE2010

Prokineticin 1 stimulates prostate epithelial cell migration and proliferation in vitro

Visonti Daniela , Bellastella Giuseppe , Rossi Valentina , Chieffi Paolo , Maione Luigi , Punzo Paola , Bellastella Antonio , Sinisi Antonio Agostino

Prokineticin 1 (Prok1), the product of EGVEGF/PROK 1 gene, acts through two G-coupled receptors (PKR1 and PKR2) and is involved in a wide spectrum of actions, including tumorigenesis. Increased Prok1 expression has been found in prostate hyperplasia and cancer, suggesting a role in prostate cancer and BPH. Aim of this study was to elucidate the role of Prok1 on prostate cell function and growth. We evaluated the effects of Prok1 on epithelial prostate cell (PC) migration and p...

ea0016p343 | Endocrine tumours | ECE2008

Raloxifene induces growth arrest and apoptosis in prostate cell lines expressing both ERα and β

Bellastella Giuseppe , Rossi Valentina , Visconti Daniela , Palumbo Vincenzo , Chieffi Paolo , Staibano Stefania , Mascolo Giuseppe , Preziosi Domenico , Bellastella Antonio , Sinisi Antonio Agostino

Raloxifene (RAL) is a selective estrogen receptor (ER) modulator (SERM) proposed for chemoprevention of breast cancer and osteoporosis. SERMs exert agonist–antagonist effects depending on tissue or ERs expressed. RAL induces apoptosis in both androgen-dependent and independent cell lines, suggesting a selective activation of ERβ and prevalent antagonist effect on ERα in prostate cells (PC). In this study we evaluated effects of estradiol (E2) and RAL on epitheli...