A novel, synthesized, amphiphilic ethylene glycol squalene derivative suppresses BBN-induced bladder carcinogenesis

Abstract Squalene, a natural triterpene with antioxidant, anti-inflammatory, and immunostimulatory properties, holds promise for cancer therapy. Here, we examined a previously developed, diethylene glycol derivative of squalene (SQ-diEG) and investigated its in vivo anti-carcinogenic effects in blad...

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Main Authors: Keisuke Sano, Masanobu Shiga, Farhana Ferdousi, Hiromichi Sakurai, Kazuki Hamada, Kozaburo Tanuma, Satoshi Nitta, Yoshiyuki Nagumo, Shuya Kandori, Akio Hoshi, Hiromitsu Negoro, Bryan J. Mathis, Jun Miyazaki, Tran Ngoc Linh, Takashi Arimura, Hiroko Isoda, Hiroyuki Nishiyama
Format: Article
Language:English
Published: Nature Portfolio 2025-08-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-16225-9
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author Keisuke Sano
Masanobu Shiga
Farhana Ferdousi
Hiromichi Sakurai
Kazuki Hamada
Kozaburo Tanuma
Satoshi Nitta
Yoshiyuki Nagumo
Shuya Kandori
Akio Hoshi
Hiromitsu Negoro
Bryan J. Mathis
Jun Miyazaki
Tran Ngoc Linh
Takashi Arimura
Hiroko Isoda
Hiroyuki Nishiyama
author_facet Keisuke Sano
Masanobu Shiga
Farhana Ferdousi
Hiromichi Sakurai
Kazuki Hamada
Kozaburo Tanuma
Satoshi Nitta
Yoshiyuki Nagumo
Shuya Kandori
Akio Hoshi
Hiromitsu Negoro
Bryan J. Mathis
Jun Miyazaki
Tran Ngoc Linh
Takashi Arimura
Hiroko Isoda
Hiroyuki Nishiyama
author_sort Keisuke Sano
collection DOAJ
description Abstract Squalene, a natural triterpene with antioxidant, anti-inflammatory, and immunostimulatory properties, holds promise for cancer therapy. Here, we examined a previously developed, diethylene glycol derivative of squalene (SQ-diEG) and investigated its in vivo anti-carcinogenic effects in bladder cancer. C57BL/6 mice were treated with 0.025% N-butyl-N-(4-hydroxybutyl) nitrosamine (BBN) to induce bladder cancer, with SQ-diEG or PBS (control) administered orally from Week 0. SQ-diEG significantly reduced bladder cancer incidence to 3.7% after 8 weeks, compared to 21.4% in controls (p = 0.025). Transcriptomic analysis indicated that SQ-diEG may exert anti-carcinogenic effects by reducing ROS-mediated DNA damage, enhancing the immune microenvironment, and modulating cholesterol biosynthesis via SQLE downregulation. In vitro, SQ-diEG inhibited proliferation and induced apoptosis in bladder cancer cell lines. This study is the first to demonstrate that SQ-diEG significantly reduces bladder cancer in a BBN mouse model, highlighting potential for therapeutic development. Further research is needed to elucidate the mechanisms and long-term efficacy of SQ-diEG.
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institution Kabale University
issn 2045-2322
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publishDate 2025-08-01
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spelling doaj-art-ae037a2480cb4a7386f49dcfc9ae71192025-08-24T11:17:45ZengNature PortfolioScientific Reports2045-23222025-08-0115111010.1038/s41598-025-16225-9A novel, synthesized, amphiphilic ethylene glycol squalene derivative suppresses BBN-induced bladder carcinogenesisKeisuke Sano0Masanobu Shiga1Farhana Ferdousi2Hiromichi Sakurai3Kazuki Hamada4Kozaburo Tanuma5Satoshi Nitta6Yoshiyuki Nagumo7Shuya Kandori8Akio Hoshi9Hiromitsu Negoro10Bryan J. Mathis11Jun Miyazaki12Tran Ngoc Linh13Takashi Arimura14Hiroko Isoda15Hiroyuki Nishiyama16Department of Urology, Institute of Medicine, University of TsukubaDepartment of Urology, Institute of Medicine, University of TsukubaInstitute of Life and Environmental Sciences, University of TsukubaDepartment of Urology, Institute of Medicine, University of TsukubaDepartment of Urology, Institute of Medicine, University of TsukubaDepartment of Urology, Institute of Medicine, University of TsukubaDepartment of Urology, Institute of Medicine, University of TsukubaDepartment of Urology, Institute of Medicine, University of TsukubaDepartment of Urology, Institute of Medicine, University of TsukubaDepartment of Urology, Institute of Medicine, University of TsukubaDepartment of Urology, Institute of Medicine, University of TsukubaDepartment of Cardiovascular Surgery, University of TsukubaDepartment of Urology, School of Medicine, International University of Health and WelfareNational Institute of Advanced Industrial Science and Technology (AIST)-University of Tsukuba Open Innovation Laboratory for Food and Medicinal Resource Engineering (FoodMed-OIL), University of TsukubaNational Institute of Advanced Industrial Science and Technology (AIST)-University of Tsukuba Open Innovation Laboratory for Food and Medicinal Resource Engineering (FoodMed-OIL), University of TsukubaInstitute of Life and Environmental Sciences, University of TsukubaDepartment of Urology, Institute of Medicine, University of TsukubaAbstract Squalene, a natural triterpene with antioxidant, anti-inflammatory, and immunostimulatory properties, holds promise for cancer therapy. Here, we examined a previously developed, diethylene glycol derivative of squalene (SQ-diEG) and investigated its in vivo anti-carcinogenic effects in bladder cancer. C57BL/6 mice were treated with 0.025% N-butyl-N-(4-hydroxybutyl) nitrosamine (BBN) to induce bladder cancer, with SQ-diEG or PBS (control) administered orally from Week 0. SQ-diEG significantly reduced bladder cancer incidence to 3.7% after 8 weeks, compared to 21.4% in controls (p = 0.025). Transcriptomic analysis indicated that SQ-diEG may exert anti-carcinogenic effects by reducing ROS-mediated DNA damage, enhancing the immune microenvironment, and modulating cholesterol biosynthesis via SQLE downregulation. In vitro, SQ-diEG inhibited proliferation and induced apoptosis in bladder cancer cell lines. This study is the first to demonstrate that SQ-diEG significantly reduces bladder cancer in a BBN mouse model, highlighting potential for therapeutic development. Further research is needed to elucidate the mechanisms and long-term efficacy of SQ-diEG.https://doi.org/10.1038/s41598-025-16225-9SqualeneEthylene glycol derivativeBladder cancerApoptosisSQLECholesterol metabolism
spellingShingle Keisuke Sano
Masanobu Shiga
Farhana Ferdousi
Hiromichi Sakurai
Kazuki Hamada
Kozaburo Tanuma
Satoshi Nitta
Yoshiyuki Nagumo
Shuya Kandori
Akio Hoshi
Hiromitsu Negoro
Bryan J. Mathis
Jun Miyazaki
Tran Ngoc Linh
Takashi Arimura
Hiroko Isoda
Hiroyuki Nishiyama
A novel, synthesized, amphiphilic ethylene glycol squalene derivative suppresses BBN-induced bladder carcinogenesis
Scientific Reports
Squalene
Ethylene glycol derivative
Bladder cancer
Apoptosis
SQLE
Cholesterol metabolism
title A novel, synthesized, amphiphilic ethylene glycol squalene derivative suppresses BBN-induced bladder carcinogenesis
title_full A novel, synthesized, amphiphilic ethylene glycol squalene derivative suppresses BBN-induced bladder carcinogenesis
title_fullStr A novel, synthesized, amphiphilic ethylene glycol squalene derivative suppresses BBN-induced bladder carcinogenesis
title_full_unstemmed A novel, synthesized, amphiphilic ethylene glycol squalene derivative suppresses BBN-induced bladder carcinogenesis
title_short A novel, synthesized, amphiphilic ethylene glycol squalene derivative suppresses BBN-induced bladder carcinogenesis
title_sort novel synthesized amphiphilic ethylene glycol squalene derivative suppresses bbn induced bladder carcinogenesis
topic Squalene
Ethylene glycol derivative
Bladder cancer
Apoptosis
SQLE
Cholesterol metabolism
url https://doi.org/10.1038/s41598-025-16225-9
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