Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
Journal of Environmental Pathology, Toxicology and Oncology
Fator do impacto: 1.241 FI de cinco anos: 1.349 SJR: 0.519 SNIP: 0.613 CiteScore™: 1.61

ISSN Imprimir: 0731-8898
ISSN On-line: 2162-6537

Journal of Environmental Pathology, Toxicology and Oncology

DOI: 10.1615/JEnvironPatholToxicolOncol.v27.i4.90
pages 321-331

Antitumor-Promoting Effects of Polyphenolic Extracts from Seedless and Seeded Indian Grapes

Asha Ramchandani
CRI-ACTREC, Tata Memorial Centre, India
Goudar S. Karibasappa
National Research Centre for Grapes (Indian Council of Agriculture Research); P.B. No. 3; Manjiri Farm; Solapur Road; Pune - 412 307, India
Shrirang S. Pakhale
Maru Lab; Advanced Centre for Treatment, Research and Education in Cancer (ACTREC); Tata Memorial Centre; Kharghar, Navi Mumbai-410 210, India

RESUMO

Grapes, the widely consumed fruits, are rich in polyphenols. The biological and chemopreven-tive activities of grape seed polyphenols have been demonstrated, while similar information regarding crude polyphenolic extracts from whole grapes and their components (pulp plus skin, seeds), particularly the seedless varieties, is lacking. Cancer chemoprevention can be achieved by inhibition of either initiation or promotion/progression stages of carcinogenesis. This study involves the determination of the polyphenolic content extracted from green (Pandhari sahebi, Thompson seedless) and black cultivars (Bangalore blue, Sharad seedless) of Indian grapes and their components (whole grapes, pulp plus skin, and seeds). Comparative evaluation of antitumor-promoting effects of seedless and seeded grape polyphenolic extracts (GPEs) was carried out in carcinogen-initiated and 12-O-tetradecanoylphorbol-13-acetate (TPA)−promoted S/RVCri-ba mouse skin and stomach, as well as esophagus of ICRC mice. The yield of crude polyphenolic extracts from whole grapes and their components varied between 3% and 51%. The total polyphenolic content expressed as mg catechin equivalents/g crude polyphenolic extract ranged from 0.47 to 701 in seeded grapes and 1.49 to 28.30 in seedless varieties. Both seedless and seeded GPEs possessed antitumor-promoting activity in target tissues of mice as is evident from their ability to delay tumor formation along with a significant decrease in tumor multiplicity and incidence. Marked and sustained epidermal hyperplasia observed in 7,12-dimethylbenz(a)anthracene−initiated and TPA-promoted mice was greatly reduced on pretreatment with GPE or catechin. The polyphenolic extracts from Sharad seedless and seeds of Bangalore blue showed the strongest suppressing activity comparable to catechin than the corresponding whole grapes. The results suggest that the chemopreventive activity of polyphenols extracted from seedless grape cultivars was as effective as that of the seeded variety and these may have beneficial effects in disease states, especially cancer.


Articles with similar content:

Anti-Tumor Activity of Aloe vera Against DMBA/Croton Oil-Induced Skin Papillomagenesis in Swiss Albino Mice
Journal of Environmental Pathology, Toxicology and Oncology, Vol.29, 2010, issue 2
Pradeep Kumar Goyal, Geeta Chaudhary, M. R. Saini
Chemopreventive Action of Diclofenac in Dimethybenzanthracene Induced Lung Cancer in Female Wistar Rat
Journal of Environmental Pathology, Toxicology and Oncology, Vol.29, 2010, issue 3
Sankar Nath Sanyal, Poonam Thakur
Antimelanogenesis and Anti-Inflammatory Activity of Selected Culinary-Medicinal Mushrooms
International Journal of Medicinal Mushrooms, Vol.20, 2018, issue 2
Yee Shin Tan, Hazwani Mat Saad, Kae Shin Sim
Protective Role of Naringenin Against Doxorubicin-Induced Cardiotoxicity in a Rat Model: Histopathology and mRNA Expression Profile Studies
Journal of Environmental Pathology, Toxicology and Oncology, Vol.33, 2014, issue 4
Kumaresan Ganesan, Murugesan Ramachandran, Swathika Subburaman
Medicinal Mushroom Cracked-Cap Polypore, Phellinus rimosus (Higher Basidiomycetes) Attenuates Acute Ethanol-Induced Lipid Peroxidation in Mice
International Journal of Medicinal Mushrooms, Vol.17, 2015, issue 11
Thekkuttuparambil Ananthanarayanan Ajith, Kainoor K. Janardhanan