Water extract of sporoderm-broken spores of Ganoderma lucidum elicits dual antitumor effects by inhibiting p-STAT3/PD-L1 and promoting ferroptosis in castration-resistant prostate cancer

Prostate cancer (PCa) is one of the most common malignancies among male patients with cancer pathology worldwide. Owing to the inevitable development of irremediable castration-resistant prostate cancer (CRPC) following intervention with androgen deprivation therapy, new therapeutic strategies are i...

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Main Authors: Xumin Zhou, Jiaqi Wang, Yufei Guo, Houhua Lai, Shilong Cheng, Zhongjie Chen, Hua Li, Qiang Li, Xiangming Mao
Format: Article
Language:English
Published: Elsevier 2024-02-01
Series:Journal of Functional Foods
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1756464624000203
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author Xumin Zhou
Jiaqi Wang
Yufei Guo
Houhua Lai
Shilong Cheng
Zhongjie Chen
Hua Li
Qiang Li
Xiangming Mao
author_facet Xumin Zhou
Jiaqi Wang
Yufei Guo
Houhua Lai
Shilong Cheng
Zhongjie Chen
Hua Li
Qiang Li
Xiangming Mao
author_sort Xumin Zhou
collection DOAJ
description Prostate cancer (PCa) is one of the most common malignancies among male patients with cancer pathology worldwide. Owing to the inevitable development of irremediable castration-resistant prostate cancer (CRPC) following intervention with androgen deprivation therapy, new therapeutic strategies are in great demand. Ganoderma lucidum, a medicinal fungus, has recently been reported to be a potential antitumor agent. However, whether the water extract of sporoderm-broken spores of G. lucidum (BSGWE), a special approach to obtain whole wall-broken spore extracts of G. lucidum, can inhibit castration-resistant prostate cancer (CRPC) has not been well characterized. In this study, we found that BSGWE inhibited cell proliferation, caused cell cycle arrest in G2/M phase, and promoted ferroptosis, which resulted in high levels of reactive oxygen species (ROS) in vitro and suppressed the growth of CRPC tumors in xenograft models. In addition, we reported that BSGWE inhibited STAT3 expression, which partly accounted for the inhibition of the transcription of PD-L1 and led to ferroptosis, manifested by the downregulation of SLC7A11 and GPX4 expression. Furthermore, BSGWE exhibited a synergistic effect with 5-fluorouracil (5-Fu) in chemotherapy of CRPC in vitro and in vivo. This study provides biological evidence that BSGWE is a novel STAT3 inhibitor that exerts anti-proliferation, pro-cell death, and pro-immunity effect and indicates a novel utilization of BSGWE in neoadjuvant chemotherapy of CRPC.
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spelling doaj.art-1e739c31116a4b289634cf6f8d2c93532024-02-14T05:14:29ZengElsevierJournal of Functional Foods1756-46462024-02-01113106018Water extract of sporoderm-broken spores of Ganoderma lucidum elicits dual antitumor effects by inhibiting p-STAT3/PD-L1 and promoting ferroptosis in castration-resistant prostate cancerXumin Zhou0Jiaqi Wang1Yufei Guo2Houhua Lai3Shilong Cheng4Zhongjie Chen5Hua Li6Qiang Li7Xiangming Mao8General Surgery Center Department of Thyroid Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, PR China; Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, P. R. China; Department of Pathogen Biology and Experimental Teaching Center of Preventive Medicine, Guangdong Provincial Key Laboratory of Tropical Disease, School of Public Health, Southern Medical University, Guangzhou 510515, P. R. China; Corresponding authors at: General Surgery Center Department of Thyroid Surgery, Zhujiang Hospital, Southern Medical University, No. 253, Industrial Avenue Central, Haizhu District, Guangzhou 510280, PR China.Department of of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, PR ChinaDepartment of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, P. R. ChinaDepartment of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, P. R. ChinaDepartment of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, P. R. ChinaDepartment of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, P. R. ChinaDepartment of Pathogen Biology and Experimental Teaching Center of Preventive Medicine, Guangdong Provincial Key Laboratory of Tropical Disease, School of Public Health, Southern Medical University, Guangzhou 510515, P. R. China; Corresponding authors at: General Surgery Center Department of Thyroid Surgery, Zhujiang Hospital, Southern Medical University, No. 253, Industrial Avenue Central, Haizhu District, Guangzhou 510280, PR China.General Surgery Center Department of Thyroid Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, PR China; Corresponding authors at: General Surgery Center Department of Thyroid Surgery, Zhujiang Hospital, Southern Medical University, No. 253, Industrial Avenue Central, Haizhu District, Guangzhou 510280, PR China.Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, P. R. China; Corresponding authors at: General Surgery Center Department of Thyroid Surgery, Zhujiang Hospital, Southern Medical University, No. 253, Industrial Avenue Central, Haizhu District, Guangzhou 510280, PR China.Prostate cancer (PCa) is one of the most common malignancies among male patients with cancer pathology worldwide. Owing to the inevitable development of irremediable castration-resistant prostate cancer (CRPC) following intervention with androgen deprivation therapy, new therapeutic strategies are in great demand. Ganoderma lucidum, a medicinal fungus, has recently been reported to be a potential antitumor agent. However, whether the water extract of sporoderm-broken spores of G. lucidum (BSGWE), a special approach to obtain whole wall-broken spore extracts of G. lucidum, can inhibit castration-resistant prostate cancer (CRPC) has not been well characterized. In this study, we found that BSGWE inhibited cell proliferation, caused cell cycle arrest in G2/M phase, and promoted ferroptosis, which resulted in high levels of reactive oxygen species (ROS) in vitro and suppressed the growth of CRPC tumors in xenograft models. In addition, we reported that BSGWE inhibited STAT3 expression, which partly accounted for the inhibition of the transcription of PD-L1 and led to ferroptosis, manifested by the downregulation of SLC7A11 and GPX4 expression. Furthermore, BSGWE exhibited a synergistic effect with 5-fluorouracil (5-Fu) in chemotherapy of CRPC in vitro and in vivo. This study provides biological evidence that BSGWE is a novel STAT3 inhibitor that exerts anti-proliferation, pro-cell death, and pro-immunity effect and indicates a novel utilization of BSGWE in neoadjuvant chemotherapy of CRPC.http://www.sciencedirect.com/science/article/pii/S1756464624000203Sporoderm-Broken Spores of Ganoderma LucidumSTAT3ImmunityFerroptosisCastration-resistant Prostate CancerAntitumor effect
spellingShingle Xumin Zhou
Jiaqi Wang
Yufei Guo
Houhua Lai
Shilong Cheng
Zhongjie Chen
Hua Li
Qiang Li
Xiangming Mao
Water extract of sporoderm-broken spores of Ganoderma lucidum elicits dual antitumor effects by inhibiting p-STAT3/PD-L1 and promoting ferroptosis in castration-resistant prostate cancer
Journal of Functional Foods
Sporoderm-Broken Spores of Ganoderma Lucidum
STAT3
Immunity
Ferroptosis
Castration-resistant Prostate Cancer
Antitumor effect
title Water extract of sporoderm-broken spores of Ganoderma lucidum elicits dual antitumor effects by inhibiting p-STAT3/PD-L1 and promoting ferroptosis in castration-resistant prostate cancer
title_full Water extract of sporoderm-broken spores of Ganoderma lucidum elicits dual antitumor effects by inhibiting p-STAT3/PD-L1 and promoting ferroptosis in castration-resistant prostate cancer
title_fullStr Water extract of sporoderm-broken spores of Ganoderma lucidum elicits dual antitumor effects by inhibiting p-STAT3/PD-L1 and promoting ferroptosis in castration-resistant prostate cancer
title_full_unstemmed Water extract of sporoderm-broken spores of Ganoderma lucidum elicits dual antitumor effects by inhibiting p-STAT3/PD-L1 and promoting ferroptosis in castration-resistant prostate cancer
title_short Water extract of sporoderm-broken spores of Ganoderma lucidum elicits dual antitumor effects by inhibiting p-STAT3/PD-L1 and promoting ferroptosis in castration-resistant prostate cancer
title_sort water extract of sporoderm broken spores of ganoderma lucidum elicits dual antitumor effects by inhibiting p stat3 pd l1 and promoting ferroptosis in castration resistant prostate cancer
topic Sporoderm-Broken Spores of Ganoderma Lucidum
STAT3
Immunity
Ferroptosis
Castration-resistant Prostate Cancer
Antitumor effect
url http://www.sciencedirect.com/science/article/pii/S1756464624000203
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