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2007 | 10 | 1 |

Tytuł artykułu

Clinical relevance of the inhibitory effect of green tea catechins [GTCs] on prostate cancer progression in combination with molecular profiling of catechin-resistant tumors: an integrated view

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Prostate cancer (CaP) is a fast-growing health and social problem already representing the second leading cause of cancer-related death among men in Western countries. Lifestyle-related factors and diet are major contributors for CaP promotion. Because of unfavourable prognosis of extra-prostatic CaP, prevention is considered the best approach to fight it at present time. Green Tea Catechins (GTCs) were proven effective at inhibiting cancer growth in several laboratory studies. We recently performed a pilot clinical trial in HG-PIN subjects showing that only 1/30 tumour was diagnosed in subjects treated for 1 year with 600 mg/die GTCs, while 9/30 cancers were found in placebo-treated men. CaP is an elusive disease, whose biological behaviour is difficult to predict. We have recently described and validated a RT-qPCR method based on a 8-genes signature that significantly discriminated benign tissue from CaP in both humans and TRAMP mice spontaneously developing CaP. In the animal model, also GTCs-resistant CaP was significantly discriminated from GTCs-sensitive CaP, i.e. responding to GTCs administration. Preliminary experiments in our laboratory have shown that this method can be successfully applied to a single tissue needle biopsy specimen in humans. The combination of these results may be of particular significance on the field. In fact, GTCs treatment for men at high risk of CaP as first line prevention therapy in combination with the 8-genes signature profiling in tissue needle biopsies for real time monitoring of patient's response might importantly change, in the near future, the clinical managing of this highly diffuse malignancy.

Wydawca

-

Rocznik

Tom

10

Numer

1

Opis fizyczny

p.57-60,ref.

Twórcy

autor
  • University of Parma, Via Volturno 39, 43-100 Parma, Italy
autor
autor

Bibliografia

  • Bettuzzi S, Brausi M, Rizzi F, Castagnetti G, Peracchia G, Corti A (2006) Chemoprevention of Human Prostate Cancer by Oral Administration of Green Tea Catechins (GTCs) in High Grade PIN Volunteers: a Preliminary Report from a 1 Year Proof-of-Principle Study. Cancer Res 66: 1234-1240.
  • Bettuzzi S, Davalli P, Astancolle S, Carani C, Madeo B, Tampieri A, Corti A (2000) Tumor progression is accom­panied by significant changes in the levels of expression of polyamine metabolism regulatory genes and Clusterin (Sulfated Glycoprotein 2) in human prostate cancer specimens. Cancer Res 60: 28-34.
  • Bettuzzi S, Scaltriti M, Caporali A, Brausi M, D’Arca D, Astancolle S, Davalli P, Corti A (2003) Successful predic­tion of prostate cancer recurrence by gene profiling in combination with clinical data: a 5-year follow-up study. Cancer Res 63: 3469-3472.
  • Bettuzzi S, Scorcioni F, Astancolle S, Davalli P, Scaltriti M, Corti A (2002). Clusterin (SGP-2) transient overexpres- sion decreases proliferation rate of SV40-immortalised human prostate epithelial cells by slowing down cell cycle progression. Oncogene 21: 4328-4334.
  • Bishara T, Ramnani DM, Epstein JI (2004) High-grade prostatic intraepithelial neoplasia on needle biopsy: risk of cancer on repeat biopsy related to number of involved cores and morphologic pattern. Am J Surg Pathol 28: 629-633.
  • Bostwick DG, Qian J (2004) High-grade prostatic in­traepithelial neoplasia. Mod Pathol 17: 360-379.
  • Caccamo AE, Scaltriti M, Caporali A, D’Arca D, Corti A, Corvetta D, Bettuzzi S (2005) Ca2+ depletion caused nuclear translocation of a 45kda death-isoform of clus­terin and anoikis induction in prostate cells. Cell Death Differ 12: 101-104.
  • Caccamo AE, Scaltriti M, Caporali A, D’Arca D, Scorcioni F, Astancolle S, Mangiola M, Bettuzzi S (2004) Cell detachment and apoptosis induction of immortalized hu­man prostate epithelial cells are associated with early ac­cumulation of a 45 kDa nuclear isoform of Clusterin. Bio- chem J 382: 157-168.
  • Caccamo AE, Scaltriti M, Caporali A, D’Arca D, Scorcioni F, Candiano G, Mangiola M, Bettuzzi S (2003) Nuclear translocation of a truncated clusterin isoform is asso­ciated to induction of anoikis in SV40-immortalized hu­man prostate epithelial cells (PNTla). Ann NY Acad Sci 1010: 514-519.
  • Caporali A, Davalli P, Astancolle S, D’Arca D, Brausi M, Bettuzzi S, Corti A (2004) The chemopreventive action of catechins in the TRAMP mouse model of prostate carcinogenesis is accompanied by Clusterin over-express­ion. Carcinogenesis 25: 2217-2224.
  • Chow HH, Cai Y, Hakim IA, et al. (2003) Pharmacokinetics and safety of green tea polyphenols after multiple-dose administration of epigallocatechin gallate and poly- phenon E in healthy individuals. Clin Cancer Res 9: 3312-3319.
  • Jian L, Xie LP, Lee AH, Binns CW (2004) Protective effect of green tea against prostate cancer: a case-control study in southeast China. Int J Cancer 108: 130-135.
  • Kronz JD, Allan CH, Shaikh AA, Epstein JI (2001) Predic­ting cancer following a diagnosis of high-grade prostatic intraepithelial neoplasia on needle biopsy: data on men with more than one follow-up biopsy. Am J Surg Pathol 25: 1079-1085.
  • Liao S, Kao YH, Hiipakka RA (2001) Green tea: biochemi­cal and biological basis for health benefits. Vitam Horm 62: 1-94.
  • Liao S, Umekita Y, Guo J, Kokontis JM, Hiipakka RA (1995) Growth inhibition and regression of human pros­tate and breast tumors in athymic mice by tea epigal- locatechin gallate. Cancer Lett 96: 239-243.
  • Nelson WG, De-Marzo AM, Isaacs WB (2003) Prostate can­cer. N Engl J Med 349: 366-381.
  • Scaltriti M, Belloni L, Caporali A, Davalli P, Remondini D, Rizzi F, Astancolle S, Corti A, Bettuzzi S (2006) Molecu­lar classification of green tea catechins-sensitive and -re­sistant prostate cancer in the TRAMP mice model by quantitative real-time PCR gene profiling. Carcinogen­esis 27: 1047-1053.
  • Scaltriti M, Bettuzzi S, Sharrard RM, Caporali A, Caccamo AE, Maitland NJ (2004a) Clusterin over-expression in both malignant and non-malignant prostate epithelial cells induces cell cycle arrest and apoptosis. British J Cancer 91: 1842-1850.
  • Scaltriti M, Brausi M, Amorosi A, Caporali A, D’Arca D Astancolle S, Corti A, Bettuzzi S (2004b) Clusterin (SGP-2, ApoJ) expression is down-regulated in low- and high-grade human prostate cancer. Int J Cancer 108: 23-30.
  • Scaltriti M, Santamaria A, Paciucci R, Bettuzzi S (2004c). Intracellular clusterin induces G2/M-phase arrest and cell death in PC-3 prostate cancer cells. Cancer Res 64: 6174-82.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-article-5448df17-f196-453c-a18d-28c1c842529a
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