Discovery of cancer-preventive juices reactivating RB functions

Background: Recent advances have been achieved in the genetic diagnosis and therapies against malignancies due to a better understanding of the molecular mechanisms underlying carcinogenesis. Since active preventive methods are currently insufficient, the further development of appropriate preventiv...

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Main Authors: Mitsuharu Masuda, Mano Horinaka, Shusuke Yasuda, Mie Morita, Emi Nishimoto, Hideki Ishikawa, Michihiro Mutoh, Toshiyuki Sakai
Format: Article
Language:English
Published: Komiyama Printing Co. Ltd 2023-09-01
Series:Environmental Health and Preventive Medicine
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/ehpm/28/0/28_23-00160/_html/-char/en
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author Mitsuharu Masuda
Mano Horinaka
Shusuke Yasuda
Mie Morita
Emi Nishimoto
Hideki Ishikawa
Michihiro Mutoh
Toshiyuki Sakai
author_facet Mitsuharu Masuda
Mano Horinaka
Shusuke Yasuda
Mie Morita
Emi Nishimoto
Hideki Ishikawa
Michihiro Mutoh
Toshiyuki Sakai
author_sort Mitsuharu Masuda
collection DOAJ
description Background: Recent advances have been achieved in the genetic diagnosis and therapies against malignancies due to a better understanding of the molecular mechanisms underlying carcinogenesis. Since active preventive methods are currently insufficient, the further development of appropriate preventive strategies is desired. Methods: We searched for drinks that reactivate the functions of tumor-suppressor retinoblastoma gene (RB) products and exert anti-inflammatory and antioxidant effects. We also examined whether lactic acid bacteria increased the production of the cancer-specific anti-tumor cytokine, tumor necrosis factor-related apoptosis-inducing ligand (TRAIL), in human, and examined whether the RB-reactivating drinks with lactic acid bacteria decreased azoxymethane-induced rat colon aberrant crypt foci (ACF) and aberrant crypts (ACs) in vivo. Results: Kakadu plum juice and pomegranate juice reactivated RB functions, which inhibited the growth of human colon cancer LIM1215 cells by G1 phase arrest. These juices also exerted anti-inflammatory and antioxidant effects. Lactiplantibacillus (L.) pentosus S-PT84 was administered to human volunteers and increased the production of TRAIL. In an in vivo study, Kakadu plum juice with or without pomegranate juice and S-PT84 significantly decreased azoxymethane-induced rat colon ACF and ACs. Conclusions: RB is one of the most important molecules suppressing carcinogenesis, and to the best of our knowledge, this is the first study to demonstrate that natural drinks reactivated the functions of RB. As expected, Kakadu plum juice and pomegranate juice suppressed the growth of LIM1215 cells by reactivating the functions of RB, and Kakadu plum juice with or without pomegranate juice and S-PT84 inhibited rat colon ACF and ACs. Therefore, this mixed juice has potential as a novel candidate for cancer prevention.
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spelling doaj.art-f09de25560064ee2a48c332a10f50aec2023-09-28T01:58:43ZengKomiyama Printing Co. LtdEnvironmental Health and Preventive Medicine1342-078X1347-47152023-09-0128545410.1265/ehpm.23-00160ehpmDiscovery of cancer-preventive juices reactivating RB functionsMitsuharu Masuda0Mano Horinaka1Shusuke Yasuda2Mie Morita3Emi Nishimoto4Hideki Ishikawa5Michihiro Mutoh6Toshiyuki Sakai7https://orcid.org/0000-0002-7865-2258Department of Molecular-Targeting Prevention, Kyoto Prefectural University of MedicineDepartment of Drug Discovery Medicine, Kyoto Prefectural University of MedicineDepartment of Drug Discovery Medicine, Kyoto Prefectural University of MedicineDepartment of Drug Discovery Medicine, Kyoto Prefectural University of MedicineDepartment of Drug Discovery Medicine, Kyoto Prefectural University of MedicineDepartment of Molecular-Targeting Prevention, Kyoto Prefectural University of MedicineDepartment of Molecular-Targeting Prevention, Kyoto Prefectural University of MedicineDepartment of Drug Discovery Medicine, Kyoto Prefectural University of MedicineBackground: Recent advances have been achieved in the genetic diagnosis and therapies against malignancies due to a better understanding of the molecular mechanisms underlying carcinogenesis. Since active preventive methods are currently insufficient, the further development of appropriate preventive strategies is desired. Methods: We searched for drinks that reactivate the functions of tumor-suppressor retinoblastoma gene (RB) products and exert anti-inflammatory and antioxidant effects. We also examined whether lactic acid bacteria increased the production of the cancer-specific anti-tumor cytokine, tumor necrosis factor-related apoptosis-inducing ligand (TRAIL), in human, and examined whether the RB-reactivating drinks with lactic acid bacteria decreased azoxymethane-induced rat colon aberrant crypt foci (ACF) and aberrant crypts (ACs) in vivo. Results: Kakadu plum juice and pomegranate juice reactivated RB functions, which inhibited the growth of human colon cancer LIM1215 cells by G1 phase arrest. These juices also exerted anti-inflammatory and antioxidant effects. Lactiplantibacillus (L.) pentosus S-PT84 was administered to human volunteers and increased the production of TRAIL. In an in vivo study, Kakadu plum juice with or without pomegranate juice and S-PT84 significantly decreased azoxymethane-induced rat colon ACF and ACs. Conclusions: RB is one of the most important molecules suppressing carcinogenesis, and to the best of our knowledge, this is the first study to demonstrate that natural drinks reactivated the functions of RB. As expected, Kakadu plum juice and pomegranate juice suppressed the growth of LIM1215 cells by reactivating the functions of RB, and Kakadu plum juice with or without pomegranate juice and S-PT84 inhibited rat colon ACF and ACs. Therefore, this mixed juice has potential as a novel candidate for cancer prevention.https://www.jstage.jst.go.jp/article/ehpm/28/0/28_23-00160/_html/-char/enretinoblastoma genecancer preventionkakadu plumpomegranatejuicelactic acid bacteriatumor necrosis factor-related apoptosis-inducing ligandanti-inflammatory effectsantioxidant effects
spellingShingle Mitsuharu Masuda
Mano Horinaka
Shusuke Yasuda
Mie Morita
Emi Nishimoto
Hideki Ishikawa
Michihiro Mutoh
Toshiyuki Sakai
Discovery of cancer-preventive juices reactivating RB functions
Environmental Health and Preventive Medicine
retinoblastoma gene
cancer prevention
kakadu plum
pomegranate
juice
lactic acid bacteria
tumor necrosis factor-related apoptosis-inducing ligand
anti-inflammatory effects
antioxidant effects
title Discovery of cancer-preventive juices reactivating RB functions
title_full Discovery of cancer-preventive juices reactivating RB functions
title_fullStr Discovery of cancer-preventive juices reactivating RB functions
title_full_unstemmed Discovery of cancer-preventive juices reactivating RB functions
title_short Discovery of cancer-preventive juices reactivating RB functions
title_sort discovery of cancer preventive juices reactivating rb functions
topic retinoblastoma gene
cancer prevention
kakadu plum
pomegranate
juice
lactic acid bacteria
tumor necrosis factor-related apoptosis-inducing ligand
anti-inflammatory effects
antioxidant effects
url https://www.jstage.jst.go.jp/article/ehpm/28/0/28_23-00160/_html/-char/en
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