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Soylu H, Karacor K. The effects of hydroxytyrosol on Prdx6 and insulin expression in diabetic rat pancreases. Histochem Cell Biol 2023:10.1007/s00418-023-02207-3. [PMID: 37219732 DOI: 10.1007/s00418-023-02207-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/09/2023] [Indexed: 05/24/2023]
Abstract
Diabetes mellitus is a widespread endocrine disease worldwide, accompanying chronic hyperglycemia. In this study, we investigated the effect of hydroxytyrosol, which exerts an antioxidant effect, on the expressions of insulin and peroxiredoxin-6 (Prdx6), which protect cells against oxidative injury in diabetic rat pancreas. This experimental study had four groups with ten animals in each group: control (nondiabetic) group, hydroxytyrosol group [10 mg/kg/day intraperitoneal injection (ip) hydroxytyrosol for 30 days], streptozotocin group (single ip injection of 55 mg/kg streptozotocin), and streptozotocin + hydroxytyrosol group (single ip injection of streptozotocin and ip injection of 10 mg/kg/day hydroxytyrosol for 30 days). During the experiment, blood glucose levels were measured at regular intervals. Insulin expression was determined by immunohistochemistry and Prdx6 expression was determined by immunohistochemistry and western blot. Immunohistochemistry and western blot results were analyzed by one-way ANOVA with applied Holm-Sidak multiple comparison test, and blood glucose results were analyzed by two-way repeated measures ANOVA with applied Tukey's multiple comparison test. Blood glucose levels on days 21 and 28 were significantly lower in the streptozotocin + hydroxytyrosol group compared with the streptozotocin group (day 21, p = 0.049 and day 28, p = 0.003). Expression of both insulin and Prdx6 were lower in the streptozotocin and the streptozotocin + hydroxytyrosol groups compared with the control and hydroxytyrosol groups (p < 0.001). Insulin and Prdx6 expression in the streptozotocin + hydroxytyrosol group were higher compared with the streptozotocin group (p < 0.001). The immunohistochemical findings of Prdx6 and western blot were the same. In conclusion, hydroxytyrosol, which is an antioxidant compound, increased Prdx6 and insulin expression in diabetic rats. Insulin increased by hydroxytyrosol may have been effective in reducing blood glucose levels. Furthermore, hydroxytyrosol may exert its effect on insulin by increasing Prdx6 expression. Thus, hydroxytyrosol may decrease or prevent several hyperglycemia-dependent complications by increasing the expression of these proteins.
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Affiliation(s)
- Hakan Soylu
- Department of Histology and Embryology, Faculty of Medicine, Duzce University, Campus, 81620, Duzce, Turkey.
| | - Kayihan Karacor
- Department of Histology and Embryology, Faculty of Medicine, Duzce University, Campus, 81620, Duzce, Turkey
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2
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Mazumder S, Mitra Ghosh T, Mukherjee UK, Chakravarti S, Amiri F, Waliagha RS, Hemmati F, Mistriotis P, Ahmed S, Elhussin I, Salam AB, Dean-Colomb W, Yates C, Arnold RD, Mitra AK. Integrating Pharmacogenomics Data-Driven Computational Drug Prediction with Single-Cell RNAseq to Demonstrate the Efficacy of a NAMPT Inhibitor against Aggressive, Taxane-Resistant, and Stem-like Cells in Lethal Prostate Cancer. Cancers (Basel) 2022; 14:6009. [PMID: 36497496 PMCID: PMC9738762 DOI: 10.3390/cancers14236009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Metastatic prostate cancer/PCa is the second leading cause of cancer deaths in US men. Most early-stage PCa are dependent on overexpression of the androgen receptor (AR) and, therefore, androgen deprivation therapies/ADT-sensitive. However, eventual resistance to standard medical castration (AR-inhibitors) and secondary chemotherapies (taxanes) is nearly universal. Further, the presence of cancer stem-like cells (EMT/epithelial-to-mesenchymal transdifferentiation) and neuroendocrine PCa (NEPC) subtypes significantly contribute to aggressive/lethal/advanced variants of PCa (AVPC). In this study, we introduced a pharmacogenomics data-driven optimization-regularization-based computational prediction algorithm ("secDrugs") to predict novel drugs against lethal PCa. Integrating secDrug with single-cell RNA-sequencing/scRNAseq as a 'Double-Hit' drug screening tool, we demonstrated that single-cells representing drug-resistant and stem-cell-like cells showed high expression of the NAMPT pathway genes, indicating potential efficacy of the secDrug FK866 which targets NAMPT. Next, using several cell-based assays, we showed substantial impact of FK866 on clinically advanced PCa as a single agent and in combination with taxanes or AR-inhibitors. Bulk-RNAseq and scRNAseq revealed that, in addition to NAMPT inhibition, FK866 regulates tumor metastasis, cell migration, invasion, DNA repair machinery, redox homeostasis, autophagy, as well as cancer stemness-related genes, HES1 and CD44. Further, we combined a microfluidic chip-based cell migration assay with a traditional cell migration/'scratch' assay and demonstrated that FK866 reduces cancer cell invasion and motility, indicating abrogation of metastasis. Finally, using PCa patient datasets, we showed that FK866 is potentially capable of reversing the expression of several genes associated with biochemical recurrence, including IFITM3 and LTB4R. Thus, using FK866 as a proof-of-concept candidate for drug repurposing, we introduced a novel, universally applicable preclinical drug development pipeline to circumvent subclonal aggressiveness, drug resistance, and stemness in lethal PCa.
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Affiliation(s)
- Suman Mazumder
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
- Center for Pharmacogenomics and Single-Cell Omics (AUPharmGx), Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
| | - Taraswi Mitra Ghosh
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
- Department of Urology Research, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02215, USA
| | - Ujjal K. Mukherjee
- Department of Business Administration, University of Illinois at Urbana-Champaign, Champaign, IL 61820, USA
- Biomedical and Translational Sciences, Carle Illinois College of Medicine, University of Illinois Urbana-Champaign, Champaign, IL 61820, USA
| | - Sayak Chakravarti
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
| | - Farshad Amiri
- Department of Chemical Engineering, Samuel Ginn College of Engineering, Auburn University, Auburn, AL 36849, USA
| | - Razan S. Waliagha
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
| | - Farnaz Hemmati
- Department of Chemical Engineering, Samuel Ginn College of Engineering, Auburn University, Auburn, AL 36849, USA
| | - Panagiotis Mistriotis
- Department of Chemical Engineering, Samuel Ginn College of Engineering, Auburn University, Auburn, AL 36849, USA
| | - Salsabil Ahmed
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
- Center for Pharmacogenomics and Single-Cell Omics (AUPharmGx), Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
| | - Isra Elhussin
- Department of Biology and Canter for Cancer Research, Tuskegee University, Tuskegee, AL 36088, USA
| | - Ahmad-Bin Salam
- Department of Biology and Canter for Cancer Research, Tuskegee University, Tuskegee, AL 36088, USA
| | - Windy Dean-Colomb
- Department of Biology and Canter for Cancer Research, Tuskegee University, Tuskegee, AL 36088, USA
- Piedmont Hospital, Newnan, GA 30309, USA
| | - Clayton Yates
- Department of Biology and Canter for Cancer Research, Tuskegee University, Tuskegee, AL 36088, USA
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21218, USA
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21218, USA
- Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD 21218, USA
- UAB O’Neal Comprehensive Cancer, University of Alabama at Birmingham School of Medicine, Birmingham, AL 35233, USA
| | - Robert D. Arnold
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
- UAB O’Neal Comprehensive Cancer, University of Alabama at Birmingham School of Medicine, Birmingham, AL 35233, USA
| | - Amit K. Mitra
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
- Center for Pharmacogenomics and Single-Cell Omics (AUPharmGx), Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
- UAB O’Neal Comprehensive Cancer, University of Alabama at Birmingham School of Medicine, Birmingham, AL 35233, USA
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3
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Nascente EDP, Amorim RL, Fonseca-Alves CE, de Moura VMBD. Comparative Pathobiology of Canine and Human Prostate Cancer: State of the Art and Future Directions. Cancers (Basel) 2022; 14:2727. [PMID: 35681707 PMCID: PMC9179314 DOI: 10.3390/cancers14112727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/14/2022] [Accepted: 05/15/2022] [Indexed: 02/01/2023] Open
Abstract
First described in 1817, prostate cancer is considered a complex neoplastic entity, and one of the main causes of death in men in the western world. In dogs, prostatic carcinoma (PC) exhibits undifferentiated morphology with different phenotypes, is hormonally independent of aggressive character, and has high rates of metastasis to different organs. Although in humans, the risk factors for tumor development are known, in dogs, this scenario is still unclear, especially regarding castration. Therefore, with the advent of molecular biology, studies were and are carried out with the aim of identifying the main molecular mechanisms and signaling pathways involved in the carcinogenesis and progression of canine PC, aiming to identify potential biomarkers for diagnosis, prognosis, and targeted treatment. However, there are extensive gaps to be filled, especially when considering the dog as experimental model for the study of this neoplasm in humans. Thus, due to the complexity of the subject, the objective of this review is to present the main pathobiological aspects of canine PC from a comparative point of view to the same neoplasm in the human species, addressing the historical context and current understanding in the scientific field.
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Affiliation(s)
- Eduardo de Paula Nascente
- School of Veterinary Medicine and Animal Science, Federal University of Goiás, Goiânia 74001-970, Brazil;
| | - Renée Laufer Amorim
- Veterinary Clinic Department, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu 18618-970, Brazil;
| | - Carlos Eduardo Fonseca-Alves
- Department of Veterinary Surgery and Anesthesiology, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu 18618-970, Brazil;
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Kim JH, Han IH, Shin SJ, Park SY, Chung HY, Ryu JS. Signaling Role of Adipocyte Leptin in Prostate Cell Proliferation Induced by Trichomonas vaginalis. THE KOREAN JOURNAL OF PARASITOLOGY 2021; 59:235-249. [PMID: 34218595 PMCID: PMC8255495 DOI: 10.3347/kjp.2021.59.3.235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 05/07/2021] [Indexed: 12/19/2022]
Abstract
Leptin is a type of adipokine mainly produced by adipocytes and reported to be overproduced in prostate cancer. However, it is not known whether it stimulates the proliferation of prostate cells. In this study, we investigated whether benign prostatic hyperplasia epithelial cells (BPH-1 cells) infected with Trichomonas vaginalis induced the proliferation of prostate cells via a leptin signaling pathway. To investigate the effect of crosstalk between adipocyte leptin and inflamed epithelial cell in proliferation of prostate cells, adipocytes 3T3-L1 cells were incubated in conditioned medium of BPH-1 cells infected with T. vaginalis (T. vaginalis-conditioned medium, TCM), and then the adipocyte-conditioned medium (ATCM) was identified to cause proliferation of prostate cells. BPH-1 cells incubated with live T. vaginalis released pro-inflammatory cytokines, and conditioned medium of these cells caused migration of adipocytes. When prostate stromal cells and BPH-1 cells were incubated with adipocyte conditioned medium containing leptin, their growth rates increased as did expression of the leptin receptor (known as OBR) and signaling molecules such as JAK2/STAT3, Notch and survivin. Moreover, blocking the OBR reduced this proliferation and the expression of leptin signaling molecules in response to ATCM. In conclusion, our findings show that inflamed BPH-1 cells infected with T. vaginalis induce the proliferation of prostate cells through leptin-OBR signaling. Therefore, it is likely that T. vaginalis contributes to prostate enlargement in BPH via adipocyte leptin released as a result of inflammation of the prostate.
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Affiliation(s)
- Jung-Hyun Kim
- Department of Environmental Biology and Medical Parasitology, Hanyang University College of Medicine, Seoul 04763, Korea.,Department of Biomedical Science, Graduate School of Biomedical Science & Engineering, Hanyang University, Seoul 04763, Korea
| | - Ik-Hwan Han
- Department of Environmental Biology and Medical Parasitology, Hanyang University College of Medicine, Seoul 04763, Korea.,Department of Biomedical Science, Graduate School of Biomedical Science & Engineering, Hanyang University, Seoul 04763, Korea
| | - Su-Jin Shin
- Department of Pathology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 06273, Korea
| | - Sung-Yul Park
- Department of Urology, Hanyang University College of Medicine, Seoul 04763, Korea
| | - Hyo-Yeoung Chung
- Department of Environmental Biology and Medical Parasitology, Hanyang University College of Medicine, Seoul 04763, Korea.,Department of Biomedical Science, Graduate School of Biomedical Science & Engineering, Hanyang University, Seoul 04763, Korea
| | - Jae-Sook Ryu
- Department of Environmental Biology and Medical Parasitology, Hanyang University College of Medicine, Seoul 04763, Korea.,Department of Biomedical Science, Graduate School of Biomedical Science & Engineering, Hanyang University, Seoul 04763, Korea
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5
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Soylu H, Kırca M, Avcı S, Ozpolat B, Ustunel I. Antiandrogen abiraterone and docetaxel treatments affect Notch1, Jagged1 and Hes1 expressions in metastatic prostate cancer cells. Exp Mol Pathol 2021; 119:104607. [PMID: 33482170 DOI: 10.1016/j.yexmp.2021.104607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/10/2020] [Accepted: 01/12/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND Prostate cancer is the most common cancer in men. A Notch signaling pathway is an important pathway in cell proliferation, differentiation, and fate. However, currently, the effects of abiraterone based-anti-androgene therapy and docetaxel, the most commonly used standard chemotherapy in prostate cancer treatment, on Notch signaling pathway are unknown. This study aimed to investigate the effects of abiraterone acetate and docetaxel on the expression of Notch1, Jagged1 and Hes1 in prostate cancer cell lines. METHODS In vitro effects of abiraterone acetate and docetaxel were examined on Notch1, Jagged1, and Hes1 expression in LNCaP and PC3 PCa cell lines by immunofluorescence, Western blot, and qRT-PCR. MTT proliferation assay was used to evaluate cell proliferation and survival. RESULTS We found that in the treatment of PC3 cells with abiraterone acetate, docetaxel, and their combination, only mRNA expressions of Notch1, Jagged1 and Hes1 were affected compared to control, but these expression differences were not observed in protein expression. In LNCaP cells, abiraterone acetate and the combination groups reduced Notch1 protein expression. All treatment groups did not alter Jagged1 expression compared to control, but significantly increased the Hes1 gene and protein expression. CONCLUSION Our findings suggest that abiraterone and docetaxel treatments affects the expression of Notch signal pathway proteins. But these drugs especially cause significant upregulation in Hes1 expression in PCa cells. Therefore, co-application of Notch signaling inhibitors together with docetaxel and abiraterone chemotherapy, it was thought that decreased Hes1 expression could be stopped the deterioration of the prognosis of the patient.
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Affiliation(s)
- Hakan Soylu
- Department of Histology and Embryology, Faculty of Medicine, Duzce University, 81620 Duzce, Turkey
| | - Mustafa Kırca
- Department of Biochemistry, Faculty of Medicine, Kutahya Health Sciences University, 43100 Kutahya, Turkey
| | - Sema Avcı
- Department of Histology and Embryology, Faculty of Medicine, Alanya Alaaddin Keykubat University, 07070 Antalya, Turkey
| | - Bulent Ozpolat
- Department of Experimental Therapeutics, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
| | - Ismail Ustunel
- Department of Histology and Embryology, Faculty of Medicine, Akdeniz University, 07070 Antalya, TURKEY.
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6
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Thomas MU, Messex JK, Dang T, Abdulkadir SA, Jorcyk CL, Liou GY. Macrophages expedite cell proliferation of prostate intraepithelial neoplasia through their downstream target ERK. FEBS J 2020; 288:1871-1886. [PMID: 32865335 DOI: 10.1111/febs.15541] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 07/23/2020] [Accepted: 08/24/2020] [Indexed: 12/18/2022]
Abstract
The risk factors for prostate cancer include a high-fat diet and obesity, both of which are associated with an altered cell environment including increased inflammation. It has been shown that chronic inflammation due to a high-fat diet or bacterial infection has the potential to accelerate prostate cancer as well as its precursor, prostatic intraepithelial neoplasia (PIN), development. However, the underlying mechanism of how chronic inflammation promotes prostate cancer development, especially PIN, remains unclear. In this study, we showed that more macrophages were present in PIN areas as compared to the normal areas of human prostate. When co-culturing PIN cells with macrophages in 3D, more PIN cells had nuclear localized cyclin D1, indicating that macrophages enhanced PIN cell proliferation. We identified ICAM-1 and CCL2 as chemoattractants expressed by PIN cells to recruit macrophages. Furthermore, we discovered that macrophage-secreted cytokines including C5a, CXCL1, and CCL2 were responsible for increased PIN cell proliferation. These three cytokines activated ERK and JNK signaling in PIN cells through a ligand-receptor interaction. However, only blockade of ERK abolished macrophage cytokines-induced cell proliferation of PIN. Overall, our results provide a mechanistic view on how macrophages activated through chronic inflammation can expedite PIN progression during prostate cancer development. The information from our work can facilitate a comprehensive understanding of prostate cancer development, which is required for improvement of current strategies for prostate cancer therapy.
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Affiliation(s)
- Mikalah U Thomas
- Department of Biological Sciences, Clark Atlanta University, GA, USA
| | - Justin K Messex
- Center for Cancer Research and Therapeutic Development, Clark Atlanta University, GA, USA
| | - Tu Dang
- Center for Cancer Research and Therapeutic Development, Clark Atlanta University, GA, USA
| | - Sarki A Abdulkadir
- Department of Urology, Northwestern University, Chicago, IL, USA.,Department of Pathology, Northwestern University, Chicago, IL, USA.,Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL, USA
| | - Cheryl L Jorcyk
- Department of Biological Science, Boise State University, ID, USA
| | - Geou-Yarh Liou
- Department of Biological Sciences, Clark Atlanta University, GA, USA.,Center for Cancer Research and Therapeutic Development, Clark Atlanta University, GA, USA
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7
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Evaluation of Notch1 gene expression in prostate carcinoma. JOURNAL OF SURGERY AND MEDICINE 2020. [DOI: 10.28982/josam.680864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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8
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Zhou W, Tan W, Huang X, Yu HG. Doxorubicin combined with Notch1-targeting siRNA for the treatment of gastric cancer. Oncol Lett 2018; 16:2805-2812. [PMID: 30127866 PMCID: PMC6096196 DOI: 10.3892/ol.2018.9039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 03/01/2018] [Indexed: 12/11/2022] Open
Abstract
Notch1, a transmembrane receptor that has a notable role in gastric cancer (GC) as an oncogene, has been reported to be involved in doxorubicin resistance. Thus, Notch1 is a potential therapeutic target for GC. In the present study, the protein levels of Notch1 intracellular domain (NICD; a marker of Notch1 activation) in human GC cell lines and tumor tissues was measured by western blotting. Next, the effects of Notch1 depletion in SGC7901 cells were evaluated. Finally, the efficacy of Notch1 small interfering RNA (siRNA) combined with doxorubicin therapy for GC was examined in vitro and in vivo. The results revealed that NICD levels were high in GC cells, and that the inhibition of NICD by transfection with Notch1 siRNA induced apoptosis and inhibited proliferation. Ectopic downregulation of Notch1 expression enhanced the sensitivity of GC tumors to doxorubicin, which suppressed the development of GC. These data demonstrated that Notch1 was a significant regulator of cell proliferation and apoptosis in GC. Thus, the combination of doxorubicin with Notch1 siRNA is a potential strategy for the treatment of GC.
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Affiliation(s)
- Wei Zhou
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China.,Hubei Key Laboratory of Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Wei Tan
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China.,Hubei Key Laboratory of Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xu Huang
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China.,Hubei Key Laboratory of Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Hong Gang Yu
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China.,Hubei Key Laboratory of Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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Zhang L, Sha J, Yang G, Huang X, Bo J, Huang Y. Activation of Notch pathway is linked with epithelial-mesenchymal transition in prostate cancer cells. Cell Cycle 2017; 16:999-1007. [PMID: 28388267 DOI: 10.1080/15384101.2017.1312237] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Notch signaling has been reported to play an essential role in tumorigenesis. Several studies have suggested that Notch receptors could be oncoproteins or tumor suppressors in different types of human cancers. Emerging evidence has suggested that Notch pathway regulates cell growth, apoptosis, cell cycle, and metastasis. In the current study, we explore whether Notch-1 could regulate the cell invasion and migration as well as EMT (epithelial-mesenchymal transition) in prostate cancer cells. We found that overexpression of Notch-1 enhanced cell migration and invasion in PC-3 cells. However, downregulation of Notch-1 retarded cell migration and invasion in prostate cancer cells. Importantly, we observed that overexpression of Notch-1 led to EMT in PC-3 cells. Notably, we found that EMT-type cells are associated with EMT markers change and cancer stem cell phenotype. Taken together, we concluded that downregulation of Notch-1 could be a promising approach for inhibition of invasion in prostate cancer cells, which could be useful for the treatment of metastatic prostate cancer.
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Affiliation(s)
- Lianhua Zhang
- a Department of Urology , Renji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai , China
| | - Jianjun Sha
- a Department of Urology , Renji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai , China
| | - Guoliang Yang
- a Department of Urology , Renji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai , China
| | - Xuyuan Huang
- a Department of Urology , Renji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai , China
| | - Juanjie Bo
- a Department of Urology , Renji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai , China
| | - Yiran Huang
- a Department of Urology , Renji Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai , China
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