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Xie Q, Yang Z, Huang X, Zhang Z, Li J, Ju J, Zhang H, Ma J. Ilamycin C induces apoptosis and inhibits migration and invasion in triple-negative breast cancer by suppressing IL-6/STAT3 pathway. J Hematol Oncol 2019; 12:60. [PMID: 31186039 PMCID: PMC6558915 DOI: 10.1186/s13045-019-0744-3] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 05/10/2019] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Triple-negative breast cancer (TNBC) is the most aggressive subtype of breast cancer with poor prognosis, and its treatment remains a challenge due to few targeted medicines and high risk of relapse, metastasis, and drug resistance. Thus, more effective drugs and new regimens for the therapy of TNBC are urgently needed. Ilamycins are a kind of cyclic peptides and produced by Streptomyces atratus and Streptomyces islandicus with effective anti-tuberculosis activity. Ilamycin C is a novel compound isolated from the deep South China Sea-derived Streptomyces atratus SCSIO ZH16 and exhibited a strong cytotoxic activity against several cancers including breast cancer cell line MCF7. However, the cytotoxic activity of Ilamycin C to TNBC cells and a detailed antitumor mechanism have not been reported. METHODS CCK-8 assays were used to examine cell viability and cytotoxic activity of Ilamycin C to TNBC, non-TNBC MCF7, and nonmalignant MCF10A cells. EdU assays and flow cytometry were performed to assess cell proliferation and cell apoptosis. Transwell migration and Matrigel invasion assays were utilized to assess the migratory and invading capacity of TNBC cells following the treatment of Ilamycin C. The expressions of proteins were detected by western blot. RESULTS In this study, we found that Ilamycin C has more preferential cytotoxicity in TNBC cells than non-TNBC MCF7 and nonmalignant MCF10A cells. Notably, our studies revealed the mechanism that Ilamycin C can induce Bax/Bcl-2-related caspase-dependent apoptosis and inhibit migration and invasion through MMP2/MMP9/vimentin/fascin in TNBC by suppressing IL-6-induced STAT3 phosphorylation. CONCLUSIONS This study provides the first evidence that Ilamycin C has significant implications for the potential as a novel IL-6/STAT3 inhibitor for TNBC treatment in the future.
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Affiliation(s)
- Qing Xie
- Department of Clinical Biochemistry, Institute of Clinical Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China
| | - Zhijie Yang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Xuanmei Huang
- Department of Clinical Biochemistry, Institute of Clinical Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China
| | - Zikang Zhang
- Department of Clinical Biochemistry, Institute of Clinical Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China
| | - Jiangbin Li
- Department of Clinical Biochemistry, Institute of Clinical Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China
| | - Jianhua Ju
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.
| | - Hua Zhang
- Department of Clinical Biochemistry, Institute of Clinical Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China.
| | - Junying Ma
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.
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Qin JJ, Yan L, Zhang J, Zhang WD. STAT3 as a potential therapeutic target in triple negative breast cancer: a systematic review. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:195. [PMID: 31088482 PMCID: PMC6518732 DOI: 10.1186/s13046-019-1206-z] [Citation(s) in RCA: 215] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Accepted: 05/02/2019] [Indexed: 12/24/2022]
Abstract
Triple negative breast cancer (TNBC), which is typically lack of expression of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2), represents the most aggressive and mortal subtype of breast cancer. Currently, only a few treatment options are available for TNBC due to the absence of molecular targets, which underscores the need for developing novel therapeutic and preventive approaches for this disease. Recent evidence from clinical trials and preclinical studies has demonstrated a pivotal role of signal transducer and activator of transcription 3 (STAT3) in the initiation, progression, metastasis, and immune evasion of TNBC. STAT3 is overexpressed and constitutively activated in TNBC cells and contributes to cell survival, proliferation, cell cycle progression, anti-apoptosis, migration, invasion, angiogenesis, chemoresistance, immunosuppression, and stem cells self-renewal and differentiation by regulating the expression of its downstream target genes. STAT3 small molecule inhibitors have been developed and shown excellent anticancer activities in in vitro and in vivo models of TNBC. This review discusses the recent advances in the understanding of STAT3, with a focus on STAT3’s oncogenic role in TNBC. The current targeting strategies and representative small molecule inhibitors of STAT3 are highlighted. We also propose potential strategies that can be further examined for developing more specific and effective inhibitors for TNBC prevention and therapy.
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Affiliation(s)
- Jiang-Jiang Qin
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, 548 Binwen Road, Binjiang District, Hangzhou, 310053, Zhejiang, China.
| | - Li Yan
- School of Pharmacy, Naval Medical University, 325 Guohe Road, Yangpu District, Shanghai, 200433, China
| | - Jia Zhang
- Shanxi Institute of Traditional Chinese Medicine, Taiyuan, 030012, China
| | - Wei-Dong Zhang
- School of Pharmacy, Naval Medical University, 325 Guohe Road, Yangpu District, Shanghai, 200433, China. .,Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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Will JP, Hirani D, Thielen F, Klein F, Vohlen C, Dinger K, Dötsch J, Alejandre Alcázar MA. Strain-dependent effects on lung structure, matrix remodeling, and Stat3/Smad2 signaling in C57BL/6N and C57BL/6J mice after neonatal hyperoxia. Am J Physiol Regul Integr Comp Physiol 2019; 317:R169-R181. [PMID: 31067073 DOI: 10.1152/ajpregu.00286.2018] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic lung disease of preterm infants, characterized by lung growth arrest and matrix remodeling. Various animal models provide mechanistic insights in the pathogenesis of BPD. Since there is increasing evidence that genetic susceptibility modifies the response to lung injury, we investigated strain-dependent effects in hyperoxia (HYX)-induced lung injury of newborn mice. To this end, we exposed newborn C57BL/6N and C57BL/6J mice to 85% O2 (HYX) or normoxia (NOX; 21% O2) for 28 days, followed by lung excision for histological and molecular measurements. BL/6J-NOX mice exhibited a lower body and lung weight than BL/6N-NOX mice; hyperoxia reduced body weight in both strains and increased lung weight only in BL/6J-HYX mice. Quantitative histomorphometric analyses revealed reduced alveolar formation in lungs of both strains after HYX, but the effect was greater in BL/6J-HYX mice than BL/6N-HYX mice. Septal thickness was lower in BL/6J-NOX mice than BL/6N-NOX mice but increased in both strains after HYX. Elastic fiber density was significantly greater in BL/6J-HYX mice than BL/6N-HYX mice. Lungs of BL/6J-HYX mice were protected from changes in gene expression of fibrillin-1, fibrillin-2, fibulin-4, fibulin-5, and surfactant proteins seen in BL/6N-HYX mice. Finally, Stat3 was activated by HYX in both strains; in contrast, activation of Smad2 was markedly greater in lungs of BL/6N mice than BL/6J mice after HYX. In summary, we demonstrate strain-dependent differences in lung structure and matrix, alveolar epithelial cell markers, and Smad2 (transforming growth factor β) signaling in neonatal HYX-induced lung injury. Strain-dependent effects and genetic susceptibility need be taken into consideration for reproducibility and reliability of results in animal models.
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Affiliation(s)
- Johannes P Will
- Department of Pediatrics, Translational Experimental Pediatrics, Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany.,Department of Pediatrics, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - Dharmesh Hirani
- Department of Pediatrics, Translational Experimental Pediatrics, Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany.,Department of Pediatrics, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany.,Center of Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Florian Thielen
- Department of Pediatrics, Translational Experimental Pediatrics, Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany.,Department of Pediatrics, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - Fabian Klein
- Department of Pediatrics, Translational Experimental Pediatrics, Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany.,Department of Pediatrics, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - Christina Vohlen
- Department of Pediatrics, Translational Experimental Pediatrics, Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany.,Department of Pediatrics, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - Katharina Dinger
- Department of Pediatrics, Translational Experimental Pediatrics, Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany.,Department of Pediatrics, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - Jörg Dötsch
- Department of Pediatrics, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany
| | - Miguel A Alejandre Alcázar
- Department of Pediatrics, Translational Experimental Pediatrics, Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany.,Department of Pediatrics, Faculty of Medicine and University Hospital Cologne, University of Cologne , Cologne , Germany.,Center of Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
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