Anti-estrogenic and anti-aromatase activities of citrus peels major compounds in breast cancer

Estrogen signaling is crucial for breast cancer initiation and progression. Endocrine-based therapies comprising estrogen receptor (ER) modulators and aromatase inhibitors remain the mainstay of treatment. This study aimed at investigating the antitumor potential of the most potent compounds in citr...

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Veröffentlicht in:Scientific reports 2021-03, Vol.11 (1), p.7121-7121, Article 7121
Hauptverfasser: El-Kersh, Dina M., Ezzat, Shahira M., Salama, Maha M., Mahrous, Engy A., Attia, Yasmeen M., Ahmed, Mahmoud Salama, Elmazar, Mohey M.
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container_title Scientific reports
container_volume 11
creator El-Kersh, Dina M.
Ezzat, Shahira M.
Salama, Maha M.
Mahrous, Engy A.
Attia, Yasmeen M.
Ahmed, Mahmoud Salama
Elmazar, Mohey M.
description Estrogen signaling is crucial for breast cancer initiation and progression. Endocrine-based therapies comprising estrogen receptor (ER) modulators and aromatase inhibitors remain the mainstay of treatment. This study aimed at investigating the antitumor potential of the most potent compounds in citrus peels on breast cancer by exploring their anti-estrogenic and anti-aromatase activities. The ethanolic extract of different varieties of citrus peels along with eight isolated flavonoids were screened against estrogen-dependent breast cancer cell lines besides normal cells for evaluating their safety profile. Naringenin, naringin and quercetin demonstrated the lowest IC 50s and were therefore selected for further assays. In silico molecular modeling against ER and aromatase was performed for the three compounds. In vivo estrogenic and anti-estrogenic assays confirmed an anti-estrogenic activity for the isolates. Moreover, naringenin, naringin and quercetin demonstrated in vitro inhibitory potential against aromatase enzyme along with anticancer potential in vivo, as evidenced by decreased tumor volumes. Reduction in aromatase levels in solid tumors was also observed in treated groups. Overall, this study suggests an antitumor potential for naringenin, naringin and quercetin isolated from citrus peels in breast cancer via possible modulation of estrogen signaling and aromatase inhibition suggesting their use in pre- and post-menopausal breast cancer patients, respectively.
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Endocrine-based therapies comprising estrogen receptor (ER) modulators and aromatase inhibitors remain the mainstay of treatment. This study aimed at investigating the antitumor potential of the most potent compounds in citrus peels on breast cancer by exploring their anti-estrogenic and anti-aromatase activities. The ethanolic extract of different varieties of citrus peels along with eight isolated flavonoids were screened against estrogen-dependent breast cancer cell lines besides normal cells for evaluating their safety profile. Naringenin, naringin and quercetin demonstrated the lowest IC 50s and were therefore selected for further assays. In silico molecular modeling against ER and aromatase was performed for the three compounds. In vivo estrogenic and anti-estrogenic assays confirmed an anti-estrogenic activity for the isolates. 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subjects 631/67
631/67/1347
639/638/309
Animals
Aromatase
Aromatase - metabolism
Aromatase Inhibitors - pharmacology
Breast cancer
Breast Neoplasms - enzymology
Breast Neoplasms - pathology
Citrus - chemistry
Estrogen Receptor Modulators - pharmacology
Estrogen receptors
Estrogenic activity
Estrogens
Female
Flavonoids
Fruits
Humanities and Social Sciences
Humans
Menopause
Mice
Molecular modelling
multidisciplinary
Naringenin
Plant Extracts - pharmacology
Post-menopause
Quercetin
Science
Science (multidisciplinary)
Solid tumors
Tumor cell lines
Xenoestrogens
Xenograft Model Antitumor Assays
title Anti-estrogenic and anti-aromatase activities of citrus peels major compounds in breast cancer
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