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Park MN, Park H, Rahman MA, Kim JW, Park SS, Cho Y, Choi J, Son SR, Jang DS, Shim BS, Kim SH, Ko SG, Cheon C, Kim B. BK002 Induces miR-192-5p-Mediated Apoptosis in Castration-Resistant Prostate Cancer Cells via Modulation of PI3K/CHOP. Front Oncol 2022; 12:791365. [PMID: 35321434 PMCID: PMC8936126 DOI: 10.3389/fonc.2022.791365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 01/25/2022] [Indexed: 11/13/2022] Open
Abstract
BK002 consists of Achyranthes japonica Nakai (AJN) and Melandrium firmum Rohrbach (MFR) that have been used as herbal medicines in China and Korea. AJN and MFR have been reported to have anti-inflammatory, anti-oxidative, and anti-cancer activities, although the synergistic targeting multiple anti-cancer mechanism in castration-resistant prostate cancer (CRPC) has not been well reported. However, the drug resistance and transition to the androgen-independent state of prostate cancer contributing to CRPC is not well studied. Here, we reported that BK002 exerted cytotoxicity and apoptosis in CRPC PC3 cell lines and prostate cancer DU145 cell lines examined by cytotoxicity, western blot, a LIVE/DEAD cell imaging assay, reactive oxygen species (ROS) detection, quantitative real-time polymerase chain reaction (RT-PCR), and transfection assays. The results from our investigation found that BK002 showed more cellular cytotoxicity than AJN and MFR alone, suggesting that BK002 exhibited potential cytotoxic properties. Consistently, BK002 increased DNA damage, and activated p-γH2A.X and depletion of survivin-activated ubiquitination of pro-PARP, caspase9, and caspase3. Notably, live cell imaging using confocal microscopy found that BK002 effectively increased DNA-binding red fluorescent intensity in PC3 and DU145 cells. Also, BK002 increased the anti-proliferative effect with activation of the C/EBP homologous protein (CHOP) and significantly attenuated PI3K/AKT expression. Notably, BK002-treated cells increased ROS generation and co-treatment of N-Acetyl-L-cysteine (NAC), an ROS inhibitor, significantly preventing ROS production and cellular cytotoxicity, suggesting that ROS production is essential for initiating apoptosis in PC3 and DU145 cells. In addition, we found that BK002 significantly enhanced miR-192-5p expression, and co-treatment with BK002 and miR-192-5p inhibitor significantly reduced miR-192-5p expression and cellular viability in PC3 and DU145 cells, indicating modulation of miR-192-5p mediated apoptosis. Finally, we found that BK002-mediated CHOP upregulation and PI3K downregulation were significantly reduced and restrained by miR-192-5p inhibitor respectively, suggesting that the anti-cancer effect of BK002 is associated with the miR-192-5p/PI3K/CHOP pathway. Therefore, our study reveals that a combination of AJN and MFR might be more effective than single treatment against apoptotic activities of both CRPC cells and prostate cancer cells.
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Affiliation(s)
- Moon Nyeo Park
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hyunmin Park
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Md. Ataur Rahman
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Jeong Woo Kim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Se Sun Park
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Yongmin Cho
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Jinwon Choi
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - So-Ri Son
- Collage of Science in Pharmacy, Kyung Hee University, Seoul, Republic of Korea
| | - Dae Sik Jang
- Collage of Science in Pharmacy, Kyung Hee University, Seoul, Republic of Korea
| | - Bum-Sang Shim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Sung-Hoon Kim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Seong-Gyu Ko
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Chunhoo Cheon
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Bonglee Kim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
- *Correspondence: Bonglee Kim,
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Black Soybean and Adzuki Bean Extracts Lower Blood Pressure by Modulating the Renin-Angiotensin System in Spontaneously Hypertensive Rats. Foods 2021; 10:foods10071571. [PMID: 34359440 PMCID: PMC8305714 DOI: 10.3390/foods10071571] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/30/2021] [Accepted: 07/03/2021] [Indexed: 01/01/2023] Open
Abstract
Hypertension, causing cardiovascular disease, stroke, and heart failure, has been a rising health issue worldwide. Black soybeans and adzuki beans have been widely consumed throughout history due to various bioactive components. We evaluated the antihypertensive effects of black soybean and adzuki bean ethanol extracts on blood pressure, renin-angiotensin system (RAS), and aortic lesion in spontaneously hypertensive rats. A group of WKY (normal) and six groups of spontaneously hypertensive rats were administered with saline (SHR), 50 mg/kg of captopril (CAP), 250 and 500 mg/kg of black soybean extracts (BE250 and BE500), 250 and 500 mg/kg of adzuki bean extracts (AE250 and AE500) for eight weeks. BE250, BE500, AE250, and AE500 significantly (p < 0.05) reduced relative liver weight, AST, ALT, triglyceride, total cholesterol, systolic blood pressure, and angiotensin-converting-enzyme level compared to SHR. The angiotensin II level in AE500 and renin mRNA expression in BE500 and AE500 were significantly (p < 0.05) decreased compared to SHR. The lumen diameter was significantly (p < 0.05) reduced in only CAP. Furthermore, systolic and diastolic blood pressure and angiotensin II level in AE500 were lower than those of BE500. These results suggest that AE exhibit more antihypertensive potential than BE in spontaneously hypertensive rats.
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Lee P, Teng C, Hsieh K, Chiou Y, Wu J, Lu T, Pan M. Adzuki Bean Water Extract Attenuates Obesity by Modulating M2/M1 Macrophage Polarization and Gut Microbiota Composition. Mol Nutr Food Res 2019; 63:e1900626. [DOI: 10.1002/mnfr.201900626] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 09/17/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Pei‐Sheng Lee
- Institute of Food Science and TechnologyNational Taiwan University Taipei 10617 Taiwan
| | - Chia‐Yi Teng
- Institute of Food Science and TechnologyNational Taiwan University Taipei 10617 Taiwan
| | - Kun‐Feng Hsieh
- Institute of Food Science and TechnologyNational Taiwan University Taipei 10617 Taiwan
| | - Yi‐Shiou Chiou
- Institute of Food Science and TechnologyNational Taiwan University Taipei 10617 Taiwan
| | - Jia‐Ching Wu
- Department of Environmental and Occupational HealthCollege of MedicineNational Cheng Kung University Tainan 704 Taiwan
| | - Ting‐Jang Lu
- Institute of Food Science and TechnologyNational Taiwan University Taipei 10617 Taiwan
| | - Min‐Hsiung Pan
- Institute of Food Science and TechnologyNational Taiwan University Taipei 10617 Taiwan
- Department of Medical ResearchChina Medical University HospitalChina Medical University Taichung 40402 Taiwan
- Department of Health and Nutrition BiotechnologyAsia University Taichung 41354 Taiwan
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MiR-657/ATF2 Signaling Pathway Has a Critical Role in Spatholobus suberectus Dunn Extract-Induced Apoptosis in U266 and U937 Cells. Cancers (Basel) 2019; 11:cancers11020150. [PMID: 30696076 PMCID: PMC6406694 DOI: 10.3390/cancers11020150] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 01/23/2019] [Indexed: 12/11/2022] Open
Abstract
Though Spatholobus suberectus Dunn (SSD) has been reported to have anti-virus, anti-osteoclastogenesis, and anti-inflammation activities, its underlying anti-cancer mechanism has never been elucidated in association with the role of miR-657 in endoplasmic reticulum (ER) stress-related apoptosis to date. SSD treatment exerted cytotoxicity in U266 and U937 cells in a dose-dependent manner. Also, apoptosis-related proteins such as PARP, procaspase-3, and Bax were regulated by SSD treatment. Furthermore, Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay revealed that a number of apoptotic bodies were increased by SSD. Interestingly, the ER stress-related proteins such as p-ATF2 and CHOP were elevated by SSD. Interestingly, reactive oxygen species (ROS) generation and cytotoxicity by SSD treatment were significantly reduced by N-Acetyl-L-cysteine (NAC). Among the microRNAs (miRNAs) regulated by SSD treatment, miR-657 was most significantly reduced by SSD treatment. However, an miR-657 mimic reversed SSD-induced apoptosis by the attenuation of the expression of p-ATF2, CHOP, and PARP cleavage. Overall, these findings provide scientific evidence that miR657 is an onco-miRNA targeting the ER stress signal pathway and SSD induces apoptosis via the inhibition of miR-657, ROS, and the activation of p-ATF2 and CHOP as a potent anti-cancer agent for myeloid-originated hematological cancer.
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Choi HS, Kim MK, Lee K, Lee KM, Choi YK, Shin YC, Cho SG, Ko SG. SH003 represses tumor angiogenesis by blocking VEGF binding to VEGFR2. Oncotarget 2018; 7:32969-79. [PMID: 27105528 PMCID: PMC5078067 DOI: 10.18632/oncotarget.8808] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 03/31/2016] [Indexed: 11/25/2022] Open
Abstract
Tumor angiogenesis is a key feature of cancer progression, because a tumor requires abundant oxygen and nutrition to grow. Here, we demonstrate that SH003, a mixed herbal extract containing Astragalus membranaceus (Am), Angelica gigas (Ag) and Trichosanthes Kirilowii Maximowicz (Tk), represses VEGF-induced tumor angiogenesis both in vitro and in vivo. SH003 inhibited VEGF-induced migration, invasion and tube formation in human umbilical vein endothelial cells (HUVEC) with no effect on the proliferation. SH003 reduced CD31-positive vessel numbers in tumor tissues and retarded tumor growth in our xenograft mouse tumor model, while SH003 did not affect pancreatic tumor cell viability. Consistently, SH003 inhibited VEGF-stimulated vascular permeability in ears and back skins. Moreover, SH003 inhibited VEGF-induced VEGFR2-dependent signaling by blocking VEGF binding to VEGFR2. Therefore, our data conclude that SH003 represses tumor angiogenesis by inhibiting VEGF-induced VEGFR2 activation, and suggest that SH003 may be useful for treating cancer.
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Affiliation(s)
- Hyeong Sim Choi
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, Korea
| | - Min Kyoung Kim
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, Korea
| | - Kangwook Lee
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, Korea
| | - Kang Min Lee
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, Korea
| | - Youn Kyung Choi
- Jeju International Marine Science Center for Research and Education, Korea Institute of Ocean Science & Technology (KIOST), Jeju, Korea
| | - Yong Cheol Shin
- Department of Preventive Medicine, College of Korean Medicine, Kyung Hee University, Seoul, Korea
| | - Sung-Gook Cho
- Department of Biotechnology, Korea National University of Transportation, Jeungpyeong, Chungbuk, Korea
| | - Seong-Gyu Ko
- Department of Preventive Medicine, College of Korean Medicine, Kyung Hee University, Seoul, Korea
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Lee JE, Song HS, Park MN, Kim SH, Shim BS, Kim B. Ethanol Extract of Oldenlandia diffusa Herba Attenuates Scopolamine-Induced Cognitive Impairments in Mice via Activation of BDNF, P-CREB and Inhibition of Acetylcholinesterase. Int J Mol Sci 2018; 19:ijms19020363. [PMID: 29370115 PMCID: PMC5855585 DOI: 10.3390/ijms19020363] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/16/2018] [Accepted: 01/25/2018] [Indexed: 12/20/2022] Open
Abstract
Though Oldenlandia diffusa Herba (ODH) has been known to exhibit anti-cancer and anti-inflammatory effects, its anti-amnestic effect has never been reported so far. The aim of this present study was to elucidate the anti-amnestic effect of ODH. ODH pretreatment significantly reduced escape latency of scopolamine treated Institute of Cancer Research (ICR) mice compared to untreated control groups in a Morris water maze test. Similarly, the passive avoidance test showed that ODH treatment recovered the scopolamine induced amnesia in the ICR mouse model. Concentration of Ach in brains of ODH treated mice was increased compared to that of scopolamine treated mice. In addition, activity of acetylcholinesterase (AChE) was notably decreased by ODH. The protein expression of brain-derived neurotrophic factor (BDNF) and phospho-cAMP response element-binding protein (p-CREB) (Ser133) was increased in ODH pretreated group compared to control group. Consistently, immunohistochemistry (IHC) revealed the elevated expression of brain-derived neurotrophic factor (BDNF) and p-CREB in brains of ODH treated mice compared to the control group. Overall, these findings suggest that ODH has anti-amnestic potential via activation of BDNF and p-CREB and inhibition of AChE in mice with scopolamine induced amnesia.
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Affiliation(s)
- Jung Eun Lee
- Department of Pathology, College of Korean Medicine, Graduate School, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul 130-701, Korea.
| | - Hyo-Sook Song
- Department of Science in Korean Medicine, College of Korean Medicine, Graduate School, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul 130-701, Korea.
| | - Moon Nyeo Park
- Department of Pathology, College of Korean Medicine, Graduate School, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul 130-701, Korea.
| | - Sung-Hoon Kim
- Department of Pathology, College of Korean Medicine, Graduate School, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul 130-701, Korea.
| | - Bum-Sang Shim
- Department of Pathology, College of Korean Medicine, Graduate School, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul 130-701, Korea.
| | - Bonglee Kim
- Department of Pathology, College of Korean Medicine, Graduate School, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul 130-701, Korea.
- Department of Science in Korean Medicine, College of Korean Medicine, Graduate School, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul 130-701, Korea.
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7
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Azarakhsh Y, Mohammadipanah F, Nassiri SM, Siavashi V, Hamedi J. Isolation and screening of proangiogenic and antiangiogenic metabolites producing rare actinobacteria from soil. J Appl Microbiol 2017; 122:1595-1602. [PMID: 28370967 DOI: 10.1111/jam.13458] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 02/17/2017] [Accepted: 03/13/2017] [Indexed: 01/19/2023]
Abstract
AIMS Angiogenesis is a physiological process that has important impacts on the pathology and healing of various diseases, and its induction or inhibition by bioactive actinobacterial metabolites can help the treatment of some diseases. In this study, the effects of actinobacterial extract in the process of angiogenesis have been explored. METHODS AND RESULTS In this research, proangiogenic and antiangiogenic metabolites producing actinobacteria were isolated from soil samples and their fermentation broth were extracted and after evaluation of their toxicity by MTT assay, antiangiogenic and proangiogenic activities were screened against human umbilical vein endothelial cells (HUVECs) by in vitro tube formation and migration assay. Isolated strains were identified through molecular techniques. The results showed that Nocardiopsis arvandica UTMC 103 and Nonomuraea sp. UTMC 2180 extracts had a high potential of anti-angiogenic activity on HUVECs. CONCLUSIONS For the first time proangiogenic potency of a rare actinobacterium, Kribbella sp. UTMC 522, was reported, and N. arvandica UTMC 103 and Nonomuraea sp. UTMC 2180 extracts inhibits the proliferation, migration and angiogenesis activity of HUVECs with reasonable potency. SIGNIFICANCE AND IMPACT OF THE STUDY Metabolites of the introduced rare actinobacteria are potent proangiogenic and angiogenic inhibitors. Identification of angiogenic-antiangiogenic mechanisms and purification of the extracts would be useful in therapeutic angiogenesis.
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Affiliation(s)
- Y Azarakhsh
- Department of Microbial Biotechnology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran
| | - F Mohammadipanah
- Department of Microbial Biotechnology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran.,Microbial Technology and Products Research Center, University of Tehran, Tehran, Iran
| | - S M Nassiri
- Department of Clinical Pathology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - V Siavashi
- Department of Clinical Pathology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - J Hamedi
- Department of Microbial Biotechnology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran.,Microbial Technology and Products Research Center, University of Tehran, Tehran, Iran
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8
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Xie B, Xie X, Rao B, Liu S, Liu H. Molecular Mechanisms Underlying the Inhibitory Effects of Qingzaojiufei Decoction on Tumor Growth in Lewis Lung Carcinoma. Integr Cancer Ther 2017; 17:467-476. [PMID: 28617188 PMCID: PMC6041919 DOI: 10.1177/1534735417694953] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Objective: Qingzaojiufei decoction (QD) is an empirical herbal
formula from traditional Chinese medicine that is used for the treatment of
lung-related diseases. However, the effect of QD on the growth of lung tumor
cells has not been investigated. The aim of this study was to examine the
antitumor activity of QD in Lewis lung carcinomas (LLC) in vivo and in vitro,
and to elucidate the underlying mechanisms. Methods: The LLC cells
were used to assess the antitumor activity of QD by Cell Counting Kit-8 assay in
vitro. In vivo, mice were randomly assigned to 5 groups (n = 10/group): the
model control (MC) group was intragastrically administered physiological saline
(0.9% NaCl) twice daily from day 2 after tumor implantation for 2 weeks. The QD
groups were intragastrically administered QD twice daily from 2 weeks before to
2 weeks after tumor implantation for 4 weeks. The mRNA levels were detected by
quantitative polymerase chain reaction, the proteins expression was determined
by immunohistochemistry or western blotting. Results: Compared with
the model group, QD showed inhibition of proliferation of LLC cells and
reductions in tumor weight and proliferating cell nuclear antigen protein
expression. Furthermore, QD up-regulated p53 mRNA expression, and downregulated
c-myc and Bcl-2 mRNA expression, while MMP-9, VEGF, and VEGFR protein expression
was suppressed. Phosphorylated ERK1/2 levels were also reduced by QD in a
dose-dependent manner. Conclusion: Our findings suggest that QD
inhibited lung tumor growth and proliferation, by activation of tumor suppressor
genes, inactivation of oncogenes, suppressing the potential for invasion and
metastasis, and attenuating angiogenesis. The ERK/VEGF/MMPs signaling pathways
may play an important role in QD-induced inhibition of malignant tumor cell
proliferation.
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Affiliation(s)
- Bin Xie
- 1 Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Xiong Xie
- 1 Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Bin Rao
- 1 Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Shengzhang Liu
- 1 Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Hongning Liu
- 1 Jiangxi University of Traditional Chinese Medicine, Nanchang, China
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Zhang ZX, Jin WJ, Yang S, Ji CL. BRAF kinase inhibitor exerts anti-tumor activity against breast cancer cells via inhibition of FGFR2. Am J Cancer Res 2016; 6:1040-1052. [PMID: 27293997 PMCID: PMC4889718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 03/13/2016] [Indexed: 06/06/2023] Open
Abstract
Most anti-angiogenic therapies currently being evaluated in clinical trials targetvascular endothelial growth factor (VEGF) pathway; however, the tumor vasculature can acquire resistance to VEGF-targeted therapy by shifting to other angiogenesis mechanisms. Therefore, other potential therapeutic agents that block non-VEGF angiogenic pathways need to be evaluated. Here we identified BRAF kinase inhibitor, vemurafenibas an agent with potential anti-angiogenic and anti-breast cancer activities. Vemurafenib demonstrated inhibition of endothelial cell proliferation, migration, and tube formation in response to basic fibroblast growth factor (bFGF). In ex vivo and in vivo angiogenesis assays, vemurafenib suppressed bFGF-induced microvessel sprouting of rat aortic rings and angiogenesis in vivo. To understand the underlying molecular basis, we examined the effects of vemurafenib on different molecular components in treated endothelial cell, and found that vemurafenib suppressed bFGF-triggered activation of FGFR2 and protein kinase B (AKT). Moreover, vemurafenib directly inhibited proliferation and blocked the oncogenic signaling pathways in breast cancer cell. In vivo, using xenograft models of breast cancer cells MDA-MB-231, vemurafenib showed growth-inhibitory activity associated with inhibition of tumor angiogenesis. Taken together, our results indicate that vemurafenib targets the FGFR2-mediated AKT signaling pathway in endothelial cells, leading to the suppression of tumor growth and angiogenesis.
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Affiliation(s)
- Zong Xin Zhang
- Department of Clinical Laboratory, Huzhou Central HospitalNo. 198, Hongqi Road, Huzhou 313000, Zhejiang Province, China
| | - Wen Jun Jin
- Department of Clinical Laboratory, Huzhou Central HospitalNo. 198, Hongqi Road, Huzhou 313000, Zhejiang Province, China
| | - Sheng Yang
- Department of Breast Medical Care, Huzhou Maternity and Child Health Care HospitalWuxing District, East Street 2, Huzhou 313000, Zhejiang Province, China
| | - Cun Li Ji
- Department of Breast Medical Care, Huzhou Maternity and Child Health Care HospitalWuxing District, East Street 2, Huzhou 313000, Zhejiang Province, China
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