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Azur RAG, Olarte KCV, Ybañez WS, Ocampo AMM, Bagamasbad PD. CYB561 supports the neuroendocrine phenotype in castration-resistant prostate cancer. PLoS One 2024; 19:e0300413. [PMID: 38739593 PMCID: PMC11090301 DOI: 10.1371/journal.pone.0300413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 03/08/2024] [Indexed: 05/16/2024] Open
Abstract
Castration-resistant prostate cancer (CRPC) is associated with resistance to androgen deprivation therapy, and an increase in the population of neuroendocrine (NE) differentiated cells. It is hypothesized that NE differentiated cells secrete neuropeptides that support androgen-independent tumor growth and induce aggressiveness of adjacent proliferating tumor cells through a paracrine mechanism. The cytochrome b561 (CYB561) gene, which codes for a secretory vesicle transmembrane protein, is constitutively expressed in NE cells and highly expressed in CRPC. CYB561 is involved in the α-amidation-dependent activation of neuropeptides, and contributes to regulating iron metabolism which is often dysregulated in cancer. These findings led us to hypothesize that CYB561 may be a key player in the NE differentiation process that drives the progression and maintenance of the highly aggressive NE phenotype in CRPC. In our study, we found that CYB561 expression is upregulated in metastatic and NE prostate cancer (NEPC) tumors and cell lines compared to normal prostate epithelia, and that its expression is independent of androgen regulation. Knockdown of CYB561 in androgen-deprived LNCaP cells dampened NE differentiation potential and transdifferentiation-induced increase in iron levels. In NEPC PC-3 cells, depletion of CYB561 reduced the secretion of growth-promoting factors, lowered intracellular ferrous iron concentration, and mitigated the highly aggressive nature of these cells in complementary assays for cancer hallmarks. These findings demonstrate the role of CYB561 in facilitating transdifferentiation and maintenance of NE phenotype in CRPC through its involvement in neuropeptide biosynthesis and iron metabolism pathways.
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Affiliation(s)
- Romie Angelo G. Azur
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
| | - Kevin Christian V. Olarte
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
| | - Weand S. Ybañez
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
| | - Alessandria Maeve M. Ocampo
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
| | - Pia D. Bagamasbad
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
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2
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Rais Y, Drabovich AP. Identification and Quantification of Human Relaxin Proteins by Immunoaffinity-Mass Spectrometry. J Proteome Res 2024. [PMID: 38739617 DOI: 10.1021/acs.jproteome.4c00027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
The human relaxins belong to the Insulin/IGF/Relaxin superfamily of peptide hormones, and their physiological function is primarily associated with reproduction. In this study, we focused on a prostate tissue-specific relaxin RLN1 (REL1_HUMAN protein) and a broader tissue specificity RLN2 (REL2_HUMAN protein). Due to their structural similarity, REL1 and REL2 proteins were collectively named a 'human relaxin protein' in previous studies and were exclusively measured by immunoassays. We hypothesized that the highly selective and sensitive immunoaffinity-selected reaction monitoring (IA-SRM) assays would reveal the identity and abundance of the endogenous REL1 and REL2 in biological samples and facilitate the evaluation of these proteins for diagnostic applications. High levels of RLN1 and RLN2 transcripts were found in prostate and breast cancer cell lines by RT-PCR. However, no endogenous prorelaxin-1 or mature REL1 were detected by IA-SRM in cell lines, seminal plasma, or blood serum. The IA-SRM assay of REL2 demonstrated its undetectable levels (<9.4 pg/mL) in healthy control female and male sera and relatively high levels of REL2 in maternal sera across different gestational weeks (median 331 pg/mL; N = 120). IA-SRM assays uncovered potential cross-reactivity and nonspecific binding for relaxin immunoassays. The developed IA-SRM assays will facilitate the investigation of the physiological and pathological roles of REL1 and REL2 proteins.
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Affiliation(s)
- Yasmine Rais
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta T6G 2G3, Canada
| | - Andrei P Drabovich
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta T6G 2G3, Canada
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3
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Martin-Caraballo M. Regulation of Molecular Biomarkers Associated with the Progression of Prostate Cancer. Int J Mol Sci 2024; 25:4171. [PMID: 38673756 PMCID: PMC11050209 DOI: 10.3390/ijms25084171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024] Open
Abstract
Androgen receptor signaling regulates the normal and pathological growth of the prostate. In particular, the growth and survival of prostate cancer cells is initially dependent on androgen receptor signaling. Exposure to androgen deprivation therapy leads to the development of castration-resistant prostate cancer. There is a multitude of molecular and cellular changes that occur in prostate tumor cells, including the expression of neuroendocrine features and various biomarkers, which promotes the switch of cancer cells to androgen-independent growth. These biomarkers include transcription factors (TP53, REST, BRN2, INSM1, c-Myc), signaling molecules (PTEN, Aurora kinases, retinoblastoma tumor suppressor, calcium-binding proteins), and receptors (glucocorticoid, androgen receptor-variant 7), among others. It is believed that genetic modifications, therapeutic treatments, and changes in the tumor microenvironment are contributing factors to the progression of prostate cancers with significant heterogeneity in their phenotypic characteristics. However, it is not well understood how these phenotypic characteristics and molecular modifications arise under specific treatment conditions. In this work, we summarize some of the most important molecular changes associated with the progression of prostate cancers and we describe some of the factors involved in these cellular processes.
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Affiliation(s)
- Miguel Martin-Caraballo
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland Eastern Shore, Princess Anne, MD 21853, USA
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Wu F, Huang F, Jiang N, Su J, Yao S, Liang B, Li W, Yan T, Zhou S, Zhou Q. Identification of ferroptosis related genes and pathways in prostate cancer cells under erastin exposure. BMC Urol 2024; 24:78. [PMID: 38575966 PMCID: PMC10996193 DOI: 10.1186/s12894-024-01472-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 03/31/2024] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND Few studies are focusing on the mechanism of erastin acts on prostate cancer (PCa) cells, and essential ferroptosis-related genes (FRGs) that can be PCa therapeutic targets are rarely known. METHODS In this study, in vitro assays were performed and RNA-sequencing was used to measure the expression of differentially expressed genes (DEGs) in erastin-induced PCa cells. A series of bioinformatic analyses were applied to analyze the pathways and DEGs. RESULTS Erastin inhibited the expression of SLC7A11 and cell survivability in LNCaP and PC3 cells. After treatment with erastin, the concentrations of malondialdehyde (MDA) and Fe2+ significantly increased, whereas the glutathione (GSH) and the oxidized glutathione (GSSG) significantly decreased in both cells. A total of 295 overlapping DEGs were identified under erastin exposure and significantly enriched in several pathways, including DNA replication and cell cycle. The percentage of LNCaP and PC3 cells in G1 phase was markedly increased in response to erastin treatment. For four hub FRGs, TMEFF2 was higher in PCa tissue and the expression levels of NRXN3, CLU, and UNC5B were lower in PCa tissue. The expression levels of SLC7A11 and cell survivability were inhibited after the knockdown of TMEFF2 in androgen-dependent cell lines (LNCaP and VCaP) but not in androgen-independent cell lines (PC3 and C4-2). The concentration of Fe2+ only significantly increased in TMEFF2 downregulated LNCaP and VCaP cells. CONCLUSION TMEFF2 might be likely to develop into a potential ferroptosis target in PCa and this study extends our understanding of the molecular mechanism involved in erastin-affected PCa cells.
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Affiliation(s)
- Fan Wu
- Department of Biochemistry and Molecular Biology, School of Pre-Clinical Medicine, Guangxi Medical University, Nanning, China
- Key Laboratory of Biological Molecular Medicine Research, Education Department of Guangxi Zhuang Autonomous Region, Guangxi Medical University, Nanning, China
| | - Fei Huang
- Department of Biochemistry and Molecular Biology, School of Pre-Clinical Medicine, Guangxi Medical University, Nanning, China
- Key Laboratory of Biological Molecular Medicine Research, Education Department of Guangxi Zhuang Autonomous Region, Guangxi Medical University, Nanning, China
| | - Nili Jiang
- Life Sciences Institute, Guangxi Medical University, Nanning, China
| | - Jinfeng Su
- Department of Biochemistry and Molecular Biology, School of Pre-Clinical Medicine, Guangxi Medical University, Nanning, China
- Key Laboratory of Biological Molecular Medicine Research, Education Department of Guangxi Zhuang Autonomous Region, Guangxi Medical University, Nanning, China
| | - Siyi Yao
- Department of Biochemistry and Molecular Biology, School of Pre-Clinical Medicine, Guangxi Medical University, Nanning, China
- Key Laboratory of Biological Molecular Medicine Research, Education Department of Guangxi Zhuang Autonomous Region, Guangxi Medical University, Nanning, China
| | - Boying Liang
- Department of Biochemistry and Molecular Biology, School of Pre-Clinical Medicine, Guangxi Medical University, Nanning, China
- Key Laboratory of Biological Molecular Medicine Research, Education Department of Guangxi Zhuang Autonomous Region, Guangxi Medical University, Nanning, China
| | - Wen Li
- Life Sciences Institute, Guangxi Medical University, Nanning, China
| | - Tengyue Yan
- Life Sciences Institute, Guangxi Medical University, Nanning, China
| | - Sufang Zhou
- Department of Biochemistry and Molecular Biology, School of Pre-Clinical Medicine, Guangxi Medical University, Nanning, China.
- Key Laboratory of Biological Molecular Medicine Research, Education Department of Guangxi Zhuang Autonomous Region, Guangxi Medical University, Nanning, China.
| | - Qingniao Zhou
- Department of Biochemistry and Molecular Biology, School of Pre-Clinical Medicine, Guangxi Medical University, Nanning, China.
- Key Laboratory of Biological Molecular Medicine Research, Education Department of Guangxi Zhuang Autonomous Region, Guangxi Medical University, Nanning, China.
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Sruthi KK, Natani S, Ummanni R. Tumor protein D52 (isoform 3) induces NF-κB - STAT3 mediated EMT driving neuroendocrine differentiation of prostate cancer cells. Int J Biochem Cell Biol 2024; 166:106493. [PMID: 37935328 DOI: 10.1016/j.biocel.2023.106493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/12/2023] [Accepted: 11/03/2023] [Indexed: 11/09/2023]
Abstract
In prostate cancer (PCa) patients, a proto-oncogene Tumor protein D52 (TPD52) is overexpressed, and it is involved in different cellular functions. In this study, we report that TPD52 expression is positively associated with the emergence of neuroendocrine PCa (NEPC). With overexpression of TPD52 in LNCaP cells, we found neuroendocrine differentiation (NED) of cells in in-vitro and distinct NED features confirmed by NE markers neuron-specific enolase (NSE) and chromogranin A (CHR-A). Further, we investigated the molecular mechanisms involved in TPD52 mediated NED of PCa cells. We found that TPD52 activates the NF- κB - STAT3 axis for the induction of NED in LNCaP cells. Indeed, inhibition of NF-κB - STAT3 attenuated the progression of NED in TPD52 positive LNCaP cells. Importantly, silencing of TPD52 expression or inhibition of NF-κB - STAT3 activity in a neuroendocrine cell line NCI-H660 showed a marked decrease in the expression of NSE and CHR-A, confirming the reversal of the NE properties. Notably, TPD52 overexpression in LNCaP cells induced expression of N-cadherin, Vimentin, ZEB1, and Snail1 indicating that TPD52 positively regulates epithelial to mesenchymal transition (EMT) of PCa cells towards NED. Moreover, silencing of Snail1 in TPD52 positive cells blocked the progression of NED and, in NCI-H660 cells reversed NE properties as expected. Of the few requirements of TPD52, activation of NF-κB - STAT3 is essential for promoting EMT compelling NED of LNCaP cells. Collectively, these results reveal that TPD52 is associated with the progression of NEPC and emphasizes the need for therapeutic targeting of TPD52 in PCa.
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Affiliation(s)
- K K Sruthi
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sirisha Natani
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Ramesh Ummanni
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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He T, Sun X, Wu C, Yao L, Zhang Y, Liu S, Jiang Y, Li Y, Wang M, Xu Y. PROS1, a clinical prognostic biomarker and tumor suppressor, is associated with immune cell infiltration in breast cancer: A bioinformatics analysis combined with experimental verification. Cell Signal 2023; 112:110918. [PMID: 37827342 DOI: 10.1016/j.cellsig.2023.110918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/12/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND PROS1 is an encoding gene that can generate protein S. This protein is a glycoprotein found in plasma that conducts physiological functions with vitamin K. However, the impact of its expression remains absent in the progression and prognosis of breast cancer (BC). METHODS In this study, we comprehensively explored the expression of PROS1 in BC and its relationship with BC patient survival, prognosis, and other clinicopathological features. We investigated how PROS1 influenced the malignant biological behavior of BC cells. A series of enrichment analyses were conducted, and the immune landscape was explored in BC affected by PROS1. We also determined correlations between PROS1 and common drug sensitivities used for BC treatments. RESULTS PROS1 had low expression in BC, which tended to result in poor survival of BC patients. Overexpressed PROS1 inhibited the migration and invasion of BC cells as well as the epithelial-mesenchymal transition process by downregulating SNAIL. Functional enrichment analyses revealed that PROS1 was more active in extracellular matrix (ECM) organization and structural constituent, ECM-receptor interaction, and other pathways with its related genes. PROS1 was also found to affect immune activity, including various immune cells infiltrating BC. BC patients with high PROS1 expression tended to have lower IC50 values of three common medications and obtained better efficacy. CONCLUSIONS PROS1 can become a promising prognostic factor and a possible therapeutic target in BC patients and suppress BC cell metastatic potential. In addition, PROS1 is a crucial factor in immune infiltration in BC.
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Affiliation(s)
- Tianyi He
- Department of Breast Surgery, the First Hospital of China Medical University, Shenyang 110001, China
| | - Xiangyu Sun
- Department of Breast Surgery, the First Hospital of China Medical University, Shenyang 110001, China
| | - Chen Wu
- Department of Breast Surgery, the First Hospital of China Medical University, Shenyang 110001, China
| | - Litong Yao
- Department of Breast Surgery, the First Hospital of China Medical University, Shenyang 110001, China
| | - Yingfan Zhang
- Department of Breast Surgery, the First Hospital of China Medical University, Shenyang 110001, China
| | - Shiyang Liu
- Department of Breast Surgery, the First Hospital of China Medical University, Shenyang 110001, China
| | - Yuhan Jiang
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, PKU International Cancer Institute, MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China
| | - Yixiao Li
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, PKU International Cancer Institute, MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China
| | - Mozhi Wang
- Department of Breast Surgery, the First Hospital of China Medical University, Shenyang 110001, China
| | - Yingying Xu
- Department of Breast Surgery, the First Hospital of China Medical University, Shenyang 110001, China.
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7
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Walter J, Eludin Z, Drabovich AP. Redefining serological diagnostics with immunoaffinity proteomics. Clin Proteomics 2023; 20:42. [PMID: 37821808 PMCID: PMC10568870 DOI: 10.1186/s12014-023-09431-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 09/19/2023] [Indexed: 10/13/2023] Open
Abstract
Serological diagnostics is generally defined as the detection of specific human immunoglobulins developed against viral, bacterial, or parasitic diseases. Serological tests facilitate the detection of past infections, evaluate immune status, and provide prognostic information. Serological assays were traditionally implemented as indirect immunoassays, and their design has not changed for decades. The advantages of straightforward setup and manufacturing, analytical sensitivity and specificity, affordability, and high-throughput measurements were accompanied by limitations such as semi-quantitative measurements, lack of universal reference standards, potential cross-reactivity, and challenges with multiplexing the complete panel of human immunoglobulin isotypes and subclasses. Redesign of conventional serological tests to include multiplex quantification of immunoglobulin isotypes and subclasses, utilize universal reference standards, and minimize cross-reactivity and non-specific binding will facilitate the development of assays with higher diagnostic specificity. Improved serological assays with higher diagnostic specificity will enable screenings of asymptomatic populations and may provide earlier detection of infectious diseases, autoimmune disorders, and cancer. In this review, we present the major clinical needs for serological diagnostics, overview conventional immunoassay detection techniques, present the emerging immunoassay detection technologies, and discuss in detail the advantages and limitations of mass spectrometry and immunoaffinity proteomics for serological diagnostics. Finally, we explore the design of novel immunoaffinity-proteomic assays to evaluate cell-mediated immunity and advance the sequencing of clinically relevant immunoglobulins.
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Affiliation(s)
- Jonathan Walter
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, 10-102 Clinical Sciences Building, Edmonton, AB, T6G 2G3, Canada
| | - Zicki Eludin
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, 10-102 Clinical Sciences Building, Edmonton, AB, T6G 2G3, Canada
| | - Andrei P Drabovich
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, 10-102 Clinical Sciences Building, Edmonton, AB, T6G 2G3, Canada.
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Zhang J, Kanoatov M, Jarvi K, Gauthier-Fisher A, Moskovtsev SI, Librach C, Drabovich AP. Germ cell-specific proteins AKAP4 and ASPX facilitate identification of rare spermatozoa in non-obstructive azoospermia. Mol Cell Proteomics 2023; 22:100556. [PMID: 37087050 DOI: 10.1016/j.mcpro.2023.100556] [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: 12/29/2022] [Revised: 04/06/2023] [Accepted: 04/16/2023] [Indexed: 04/24/2023] Open
Abstract
Non-obstructive azoospermia (NOA), the most severe form of male infertility, could be treated with intra-cytoplasmic sperm injection, providing spermatozoa were retrieved with the microdissection testicular sperm extraction (mTESE). We hypothesized that testis- and germ cell-specific proteins would facilitate flow cytometry-assisted identification of rare spermatozoa in semen cell pellets of NOA patients, thus enabling non-invasive diagnostics prior to mTESE. Data mining, targeted proteomics, and immunofluorescent microscopy identified and verified a panel of highly testis-specific proteins expressed at the continuum of germ cell differentiation. Late germ cell-specific proteins AKAP4_HUMAN and ASPX_HUMAN (ACRV1 gene) revealed exclusive localization in spermatozoa tails and acrosomes, respectively. A multiplex imaging flow cytometry assay facilitated fast and unambiguous identification of rare but morphologically intact AKAP4+/ASPX+/Hoechst+ spermatozoa within debris-laden semen pellets of NOA patients. While the previously suggested markers for spermatozoa retrieval suffered from low diagnostic specificity, the multi-step gating strategy and visualization of AKAP4+/ASPX+/Hoechst+ cells with elongated tails and acrosome-capped nuclei facilitated fast and unambiguous identification of the mature intact spermatozoa. AKAP4+/ASPX+/Hoechst+ assay may emerge as a non-invasive test to predict retrieval of morphologically intact spermatozoa by mTESE, thus improving diagnostics and treatment of severe forms of male infertility.
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Affiliation(s)
| | - Mirzo Kanoatov
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Keith Jarvi
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada; Department of Surgery, Division of Urology, Mount Sinai Hospital, Toronto, ON, Canada
| | | | - Sergey I Moskovtsev
- CReATe Fertility Centre, Toronto, ON, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Clifford Librach
- CReATe Fertility Centre, Toronto, ON, Canada; Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON, Canada; Department of Physiology, University of Toronto, Toronto, ON, Canada; Sunnybrook Research Institute, Toronto, ON, Canada
| | - Andrei P Drabovich
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada.
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Wang J, Wu N, Feng X, Liang Y, Huang M, Li W, Hou L, Yin C. PROS1 shapes the immune-suppressive tumor microenvironment and predicts poor prognosis in glioma. Front Immunol 2023; 13:1052692. [PMID: 36685506 PMCID: PMC9845921 DOI: 10.3389/fimmu.2022.1052692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/28/2022] [Indexed: 01/05/2023] Open
Abstract
Background Glioma is the most malignant cancer in the brain. As a major vitamin-K-dependent protein in the central nervous system, PROS1 not only plays a vital role in blood coagulation, and some studies have found that it was associated with tumor immune infiltration. However, the prognostic significance of PROS1 in glioma and the underlying mechanism of PROS1 in shaping the tumor immune microenvironment (TIME) remains unclear. Methods The raw data (including RNA-seq, sgRNA-seq, clinicopathological variables and prognosis, and survival data) were acquired from public databases, including TCGA, GEPIA, CGGA, TIMER, GEO, UALCAN, and CancerSEA. GO enrichment and KEGG pathway analyses were performed using "cluster profiler" package and visualized by the "ggplot2" package. GSEA was conducted using R package "cluster profiler". Tumor immune estimation resource (TIMER) and spearman correlation analysis were applied to evaluate the associations between infiltration levels of immune cells and the expression of PROS1. qRT-PCR and WB were used to assay the expression of PROS1. Wound-healing assay, transwell chambers assays, and CCK-8 assays, were performed to assess migration and proliferation. ROC and KM curves were constructed to determine prognostic significance of PROS1 in glioma. Results The level of PROS1 expression was significantly increased in glioma in comparison to normal tissue, which was further certificated by qRT-PCR and WB in LN-229 and U-87MG glioma cells. High expression of PROS1 positively correlated with inflammation, EMT, and invasion identified by CancerSEA, which was also proved by downregulation of PROS1 could suppress cells migration, and proliferation in LN-229 and U-87MG glioma cells. GO and KEGG analysis suggested that PROS1 was involved in disease of immune system and T cell antigen receptor pathway. Immune cell infiltration analysis showed that expression of PROS1 was negatively associated with pDC and NK CD56 bright cells while positively correlated with Macrophages, Neutrophils in glioma. Immune and stromal scores analysis indicated that PROS1 was positively associated with immune score. The high level of PROS1 resulted in an immune suppressive TIME via the recruitment of immunosuppressive molecules. In addition, Increased expression of PROS1 was correlated with T-cell exhaustion, M2 polarization, poor Overall-Survival (OS) in glioma. And it was significantly related to tumor histological level, age, primary therapy outcome. The results of our experiment and various bioinformatics approaches validated that PROS1 was a valuable poor prognostic marker. Conclusion Increased expression of PROS1 was correlated with malignant phenotype and associated with poor prognosis in glioma. Besides, PROS1 could be a possible biomarker and potential immunotherapeutic target through promoting the glioma immunosuppressive microenvironment and inducing tumor-associated macrophages M2 polarization.
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Affiliation(s)
- Jinxiang Wang
- Academician (expert) workstation, Sichuan Key Laboratory of Medical Imaging, Breast Cancer Biotargeting Laboratory, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China,Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Nisha Wu
- Academician (expert) workstation, Sichuan Key Laboratory of Medical Imaging, Breast Cancer Biotargeting Laboratory, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China,Department of Clinical Laboratory, The Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Xiaowei Feng
- Department of NeuroRehabilitation, Shaanxi Provincial Rehabilitation Hospital, Xi’an, China
| | - Yanling Liang
- Department of Clinical Laboratory, Affiliated Foshan Maternity and Child Healthcare Hospital, Southern Medical University, Foshan, China
| | - Meijin Huang
- Department of Oncology, 920th Hospital of People’s Liberation Army (PLA) Joint Logistics Support, Kun ming, Yun nan, China
| | - Wenle Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China,*Correspondence: Chengliang Yin, ; Lingmi Hou, ; Wenle Li,
| | - Lingmi Hou
- Academician (expert) workstation, Sichuan Key Laboratory of Medical Imaging, Breast Cancer Biotargeting Laboratory, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China,*Correspondence: Chengliang Yin, ; Lingmi Hou, ; Wenle Li,
| | - Chengliang Yin
- Faculty of Medicine, Macau University of Science and Technology, Macau, Macau SAR, China,*Correspondence: Chengliang Yin, ; Lingmi Hou, ; Wenle Li,
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10
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IL-6 evoked biochemical changes in prostate cancer cells. Cytokine 2023; 161:156079. [PMID: 36372008 DOI: 10.1016/j.cyto.2022.156079] [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: 07/18/2022] [Revised: 10/05/2022] [Accepted: 10/21/2022] [Indexed: 11/12/2022]
Abstract
The pro-inflammatory cytokine IL-6 has been associated with the progression of PCa to a castration-resistant phenotype. In this work, we characterized the biochemical changes evoked by IL-6 in three different models of PCa cells, including LNCaP, C4-2, and PC3. The effect of IL-6 on PCa cells was compared with the effect obtained by co-stimulation with the cAMP-inducing agent forskolin (FSK). Stimulation of LNCaP cells with IL-6 or IL-6 + FSK evoked increased expression of the neuroendocrine marker tubulin IIIβ and Cav3.2 T-type Ca2+ channel subunit. PC3 cells, representing a more advanced state of PCa, had high levels of tubulin IIIβ expression without any further changes observed by treatment with IL-6 or IL-6 + FSK. Elevated expression of the glucocorticoid receptor was observed in PC3, but not in LNCaP or C4-2 cells. Glucocorticoid receptor expression was not regulated by IL-6 stimulation of LNCaP or C4-2 cells. IL-6 acting alone or together with FSK evoked a significant reduction in the expression of the transcription factor REST and retinoblastoma tumor suppressor protein Rb1. In LNCaP cells, IL-6 acting alone or together with FSK had no effect on the expression of several biological markers of advanced PCa, including Aurora kinase A, valosin-containing protein, calcium-sensing receptor, calreticulin, S100A protein, and Protein S. In PC3 cells, co-treatment with IL-6 + FSK evoked increased expression of REST and S100A proteins, as well as a reduction in Protein S levels. These findings reveal a complex pattern of biochemical changes in PCa cells under the influence of IL-6.
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Engelmann J, Zarrer J, Gensch V, Riecken K, Berenbrok N, Luu TV, Beitzen-Heineke A, Vargas-Delgado ME, Pantel K, Bokemeyer C, Bhamidipati S, Darwish IS, Masuda E, Burstyn-Cohen T, Alberto EJ, Ghosh S, Rothlin C, Hesse E, Taipaleenmäki H, Ben-Batalla I, Loges S. Regulation of bone homeostasis by MERTK and TYRO3. Nat Commun 2022; 13:7689. [PMID: 36509738 PMCID: PMC9744875 DOI: 10.1038/s41467-022-33938-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 10/07/2022] [Indexed: 12/14/2022] Open
Abstract
The fine equilibrium of bone homeostasis is maintained by bone-forming osteoblasts and bone-resorbing osteoclasts. Here, we show that TAM receptors MERTK and TYRO3 exert reciprocal effects in osteoblast biology: Osteoblast-targeted deletion of MERTK promotes increased bone mass in healthy mice and mice with cancer-induced bone loss, whereas knockout of TYRO3 in osteoblasts shows the opposite phenotype. Functionally, the interaction of MERTK with its ligand PROS1 negatively regulates osteoblast differentiation via inducing the VAV2-RHOA-ROCK axis leading to increased cell contractility and motility while TYRO3 antagonizes this effect. Consequently, pharmacologic MERTK blockade by the small molecule inhibitor R992 increases osteoblast numbers and bone formation in mice. Furthermore, R992 counteracts cancer-induced bone loss, reduces bone metastasis and prolongs survival in preclinical models of multiple myeloma, breast- and lung cancer. In summary, MERTK and TYRO3 represent potent regulators of bone homeostasis with cell-type specific functions and MERTK blockade represents an osteoanabolic therapy with implications in cancer and beyond.
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Affiliation(s)
- Janik Engelmann
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- DKFZ-Hector Cancer Institute at the University Medical Center Mannheim, Mannheim, Germany
- Division of Personalized Medical Oncology (A420), German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Personalized Oncology, University Hospital Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Jennifer Zarrer
- Molecular Skeletal Biology Laboratory, Department of Trauma, Hand and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Institute of Musculoskeletal Medicine, University Hospital, LMU Munich, Martinsried, Germany
- Musculoskeletal University Center Munich, University Hospital, LMU Munich, Martinsried, Germany
| | - Victoria Gensch
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- DKFZ-Hector Cancer Institute at the University Medical Center Mannheim, Mannheim, Germany
- Division of Personalized Medical Oncology (A420), German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Personalized Oncology, University Hospital Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Kristoffer Riecken
- Department of Stem Cell Transplantation, Research Department Cell and Gene Therapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Nikolaus Berenbrok
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- DKFZ-Hector Cancer Institute at the University Medical Center Mannheim, Mannheim, Germany
- Division of Personalized Medical Oncology (A420), German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Personalized Oncology, University Hospital Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - The Vinh Luu
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Antonia Beitzen-Heineke
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Maria Elena Vargas-Delgado
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- DKFZ-Hector Cancer Institute at the University Medical Center Mannheim, Mannheim, Germany
- Division of Personalized Medical Oncology (A420), German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Personalized Oncology, University Hospital Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Klaus Pantel
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Carsten Bokemeyer
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Ihab S Darwish
- Rigel Pharmaceuticals, Inc., South San Francisco, CA, USA
| | - Esteban Masuda
- Rigel Pharmaceuticals, Inc., South San Francisco, CA, USA
| | - Tal Burstyn-Cohen
- Faculty of Dental Medicine, Institute for Dental Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Emily J Alberto
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Sourav Ghosh
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT, USA
- Department of Neurology, Yale University School of Medicine, New Haven, CT, USA
| | - Carla Rothlin
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT, USA
| | - Eric Hesse
- Institute of Musculoskeletal Medicine, University Hospital, LMU Munich, Martinsried, Germany
- Musculoskeletal University Center Munich, University Hospital, LMU Munich, Martinsried, Germany
| | - Hanna Taipaleenmäki
- Molecular Skeletal Biology Laboratory, Department of Trauma, Hand and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Institute of Musculoskeletal Medicine, University Hospital, LMU Munich, Martinsried, Germany
- Musculoskeletal University Center Munich, University Hospital, LMU Munich, Martinsried, Germany
| | - Isabel Ben-Batalla
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
- DKFZ-Hector Cancer Institute at the University Medical Center Mannheim, Mannheim, Germany.
- Division of Personalized Medical Oncology (A420), German Cancer Research Center (DKFZ), Heidelberg, Germany.
- Department of Personalized Oncology, University Hospital Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
| | - Sonja Loges
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
- DKFZ-Hector Cancer Institute at the University Medical Center Mannheim, Mannheim, Germany.
- Division of Personalized Medical Oncology (A420), German Cancer Research Center (DKFZ), Heidelberg, Germany.
- Department of Personalized Oncology, University Hospital Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
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12
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Welsh J, Bak MJ, Narvaez CJ. New insights into vitamin K biology with relevance to cancer. Trends Mol Med 2022; 28:864-881. [PMID: 36028390 PMCID: PMC9509427 DOI: 10.1016/j.molmed.2022.07.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 06/23/2022] [Accepted: 07/22/2022] [Indexed: 10/24/2022]
Abstract
Phylloquinone (vitamin K1) and menaquinones (vitamin K2 family) are essential for post-translational γ-carboxylation of a small number of proteins, including clotting factors. These modified proteins have now been implicated in diverse physiological and pathological processes including cancer. Vitamin K intake has been inversely associated with cancer incidence and mortality in observational studies. Newly discovered functions of vitamin K in cancer cells include activation of the steroid and xenobiotic receptor (SXR) and regulation of oxidative stress, apoptosis, and autophagy. We provide an update of vitamin K biology, non-canonical mechanisms of vitamin K actions, the potential functions of vitamin K-dependent proteins in cancer, and observational trials on vitamin K intake and cancer.
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Affiliation(s)
- JoEllen Welsh
- Cancer Research Center and Department of Environmental Health Sciences, University at Albany, Rensselaer, NY 12144, USA.
| | - Min Ji Bak
- Cancer Research Center and Department of Environmental Health Sciences, University at Albany, Rensselaer, NY 12144, USA
| | - Carmen J Narvaez
- Cancer Research Center and Department of Environmental Health Sciences, University at Albany, Rensselaer, NY 12144, USA
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13
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Yan D, Huelse JM, Kireev D, Tan Z, Chen L, Goyal S, Wang X, Frye SV, Behera M, Schneider F, Ramalingam SS, Owonikoko T, Earp HS, DeRyckere D, Graham DK. MERTK activation drives osimertinib resistance in EGFR-mutant non-small cell lung cancer. J Clin Invest 2022; 132:e150517. [PMID: 35708914 PMCID: PMC9337831 DOI: 10.1172/jci150517] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/14/2022] [Indexed: 11/17/2022] Open
Abstract
Acquired resistance is inevitable in non-small cell lung cancers (NSCLCs) treated with osimertinib (OSI), and the mechanisms are not well defined. The MERTK ligand GAS6 promoted downstream oncogenic signaling in EGFR-mutated (EGFRMT) NSCLC cells treated with OSI, suggesting a role for MERTK activation in OSI resistance. Indeed, treatment with MRX-2843, a first-in-class MERTK kinase inhibitor, resensitized GAS6-treated NSCLC cells to OSI. Both GAS6 and EGF stimulated downstream PI3K/AKT and MAPK/ERK signaling in parental cells, but only GAS6 activated these pathways in OSI-resistant (OSIR) derivative cell lines. Functionally, OSIR cells were more sensitive to MRX-2843 than parental cells, suggesting acquired dependence on MERTK signaling. Furthermore, MERTK and/or its ligands were dramatically upregulated in EGFRMT tumors after treatment with OSI in both xenograft models and patient samples, consistent with induction of autocrine/paracrine MERTK activation. Moreover, treatment with MRX-2843 in combination with OSI, but not OSI alone, provided durable suppression of tumor growth in vivo, even after treatment was stopped. These data identify MERTK as a driver of bypass signaling in treatment-naive and EGFRMT-OSIR NSCLC cells and predict that MRX-2843 and OSI combination therapy will provide clinical benefit in patients with EGFRMT NSCLC.
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Affiliation(s)
- Dan Yan
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta and Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Justus M. Huelse
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta and Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Dmitri Kireev
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Zikang Tan
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta and Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Luxiao Chen
- Biostatistics and Bioinformatics Shared Resources, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Subir Goyal
- Biostatistics and Bioinformatics Shared Resources, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Xiaodong Wang
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Stephen V. Frye
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Department of Medicine, UNC Lineberger Comprehensive Cancer Center, Chapel Hill, North Carolina, USA
| | - Madhusmita Behera
- Biostatistics and Bioinformatics Shared Resources, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA
| | | | - Suresh S. Ramalingam
- Winship Cancer Institute, and
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Taofeek Owonikoko
- Winship Cancer Institute, and
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - H. Shelton Earp
- Department of Medicine, UNC Lineberger Comprehensive Cancer Center, Chapel Hill, North Carolina, USA
- Department of Pharmacology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Deborah DeRyckere
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta and Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Douglas K. Graham
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta and Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
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14
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Arslan A, Batar B, Temiz E, Tozkir H, Koyuncu I, Bozgeyik E. Silencing of TP73-AS1 impairs prostate cancer cell proliferation and induces apoptosis via regulation of TP73. Mol Biol Rep 2022; 49:6859-6869. [PMID: 35138524 DOI: 10.1007/s11033-022-07141-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 01/11/2022] [Indexed: 10/19/2022]
Abstract
BACKGROUND Prostate cancer is a malignant disease that severely affects the health and comfort of the male population. The long non-coding RNA TP73-AS1 has been shown to be involved in the malignant transformation of various human cancers. However, whether TP73-AS1 contributes to prostate cancer progression has not been reported yet. Accordingly, here we aimed to report the role of TP73-AS1 in the development and progression of prostate cancer and determine its relationship with TP73. METHODS AND RESULTS TP73-AS1-specific siRNA oligo duplexes were used to silence TP73-AS1 in DU-145 and PC-3 cells. Results indicated that TP73-AS1 was upregulated whereas TP73 was downregulated in prostate cancer cells compared to normal prostate cells and there was a negative correlation between them. Besides, loss of function experiments of TP73-AS1 in prostate cancer cells strongly induced cellular apoptosis, interfered with the cell cycle progression, and modulated related pro- and anti-apoptotic gene expression. Colony formation and migration capacities of TP73-AS1-silenced prostate cancer cells were also found to be dramatically reduced. CONCLUSIONS Our findings provide novel evidence that suggests a chief regulatory role for the TP73-TP73-AS1 axis in prostate cancer development and progression, suggesting that the TP73/TP73-AS1 axis can be a promising diagnostic and therapeutic target for prostate cancer.
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Affiliation(s)
- Ahmet Arslan
- Department of Medical Genetics, Medical Faculty of Tekirdag Namik Kemal University, Tekirdag, Turkey
| | - Bahadir Batar
- Department of Medical Biology, Medical Faculty of Tekirdag Namik Kemal University, Tekirdag, Turkey
| | - Ebru Temiz
- Program of Medical Promotion and Marketing, Vocational School of Health Services, Harran University, Sanliurfa, Turkey
| | - Hilmi Tozkir
- Department of Medical Genetics, Medical Faculty of Tekirdag Namik Kemal University, Tekirdag, Turkey
| | - Ismail Koyuncu
- Department of Medical Biochemistry, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Esra Bozgeyik
- Department of Medical Services and Techniques, Vocational School of Health Services, Adiyaman University, Adiyaman, Turkey.
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15
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Suleiman L, Muataz Y, Négrier C, Boukerche H. Protein S-mediated signal transduction pathway regulates lung cancer cell proliferation, migration and angiogenesis. Hematol Oncol Stem Cell Ther 2021:S1658-3876(21)00111-4. [PMID: 34906536 DOI: 10.1016/j.hemonc.2021.11.002] [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: 02/17/2021] [Revised: 10/11/2021] [Accepted: 11/08/2021] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE/BACKGROUND Protein S (PS; encoded by the PROS1 gene), a key vitamin K-dependent anticoagulant protein, is emerging as a key structural and functional protein that is overexpressd in various malignancies, but how PS signals to promote lung cancer progression is unclear. METHODS We used immortalized, nontumorigenic human lung epithelial cell line NL-20, A549 cells as experimental cellular models for lung cancer, and human microvascular endothelial cells (HMEC-1) as a model system for angiogenesis. A loss- and gain-of-function approach was then used to analyze the role of tumor-derived PS and their natural TAM receptors Tyro3 and MerTK in regulating cell proliferation, migration, anchorage-independent growth, and capillary-like tube formation, all prominent attributes of the metastatic phenotype of tumor cells. RESULTS Evidence is now provided that regulation of PROS1 gene expression using either stable cell lines expressing lentiviral-short hairpin RNA (shRNAs) or a replication-incompetent adenovirus alters the phosphorylation of several major signaling pathways, including Erk, PKB/Akt, p38, and focal adhesion kinase (FAK), and modulates PS-dependent Tyro3- and MerTK-mediated cell migration, proliferation, and anchorage-independent growth of lung cancer cells, and endothelial cell capillary-like tube formation. CONCLUSION These finding suggest that the PS-Tyro3 and -MerTK axis mediates important signaling pathways to promote lung cancer progression. Genetic inhibition of endogenous PS may serve as a promising target for anticancer drug development.
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Affiliation(s)
- Lutfi Suleiman
- Hemostasis and Cancer Unit EA 4609, University Claude Bernard, Lyon 1, France
| | - Yacoub Muataz
- Hemostasis and Cancer Unit EA 4609, University Claude Bernard, Lyon 1, France
| | - Claude Négrier
- Hemostasis and Cancer Unit EA 4609, University Claude Bernard, Lyon 1, France
| | - Habib Boukerche
- Hemostasis and Cancer Unit EA 4609, University Claude Bernard, Lyon 1, France.
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16
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Effects of orlistat combined with enzalutamide and castration through inhibition of fatty acid synthase in a PC3 tumor-bearing mouse model. Biosci Rep 2021; 41:228631. [PMID: 33974005 PMCID: PMC8164108 DOI: 10.1042/bsr20204203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 05/01/2021] [Accepted: 05/11/2021] [Indexed: 01/18/2023] Open
Abstract
Androgen deprivation therapy (ADT) is one of the typical treatments used for patients with prostate cancer (PCa). ADT, however, may fail when PCa develops castration-resistance. Fatty acid synthase (FASN), a critical enzyme involved in fatty acid synthesis, is found to be up-regulated in PCa. Since enzalutamide and ADT are frequently used for the treatment of PCa, the present study aimed to unravel the underlying mechanism of combination of orlistat, an FASN inhibitor, and enzalutamide using PC3 cell line; and orlistat and castration in PC3 tumor-bearing animal model. Cytotoxicity was determined by AlamarBlue assay. Drug effects on the cell cycle and protein expressions were assayed by the flow cytometry and Western blot. Electromobility shift assay was used to evaluate the NF-κB activity. The tumor growth delay, expressions of the signaling-related proteins, and histopathology post treatments of orlistat and castration were evaluated in PC3 tumor-bearing mouse model. The results showed that orlistat arrested the PC3 cells at the G1 phase of the cell cycle and enhanced the cytotoxic effects of enzalutamide synergistically. Pretreatment with orlistat combined with castration inhibited the tumor growth significantly compared with those of castration and orlistat treatments alone in PC3 tumor-bearing mice. Combination treatment reduced both FASN and NF-κB activities and their downstream effector proteins. The present study demonstrated the synergistic effects of orlistat combined with enzalutamide in vitro and castration in vivo on human PCa.
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17
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Hippophae rhamnoides mediate gene expression profiles against keratinocytes infection of Staphylococcus aureus. Mol Biol Rep 2021; 48:1409-1422. [PMID: 33608810 DOI: 10.1007/s11033-021-06221-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 02/06/2021] [Indexed: 10/22/2022]
Abstract
Staphylococcus aureus causes a wide range of skin diseases such as bacterial keratitis, follicles, psoriasis, cellulitis and atopic dermatitis. This study aims to investigate the S. aureus mediated molecular modulation, and the effect of HR in reversing the deleterious impact of S. aureus in keratinocytes. Human keratinocyte (HaCaT) cells were cultured in DMEM, supplemented with 10% fetal bovine serum (FBS) and 1% penicillin/streptomycin. Subcultures were divided into three flasks: control with no S. aureus and extract (C), S. aureus infected (SA) and S. aureus infected cells and extract (SE). RNA was isolated and microarray analysis was performed. The data was annotated using GO functional analysis and DAVID functional annotation. For each comparison group, significant probes were filtered out at significant cut off by fold change (P < 0.05 and/or > twofold change). For SA vs control, SE vs control, and SE vs SA, 204, 9369, 9900 probes were filtered respectively. In SA vs control, TNF signaling, NOD-like receptor and chemokine receptor signaling pathways were upregulated with key genes such as CCL2, CCL20 and BIRC3. The SE vs SA, showed significant expression variations of a number of important genes. Molecular pathways associated with ILs, TNFs, TGFs, IFNs, FGFs, MAPKs, MMPs, caspases and Wnts were either up regulated or downregulated. This effect was reversed by the extract, possibly through downregulating various proinflammatory cytokines and apoptotic pathways. Our study reveals that S. aureus inserts a negative impact on the regulation of various key genes which is apparently reversed by the HR extract.
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18
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Xu X, Zhu Z, Xu Y, Tian S, Jiang Y, Zhao H. Effects of zinc finger protein 403 on the proliferation, migration and invasion abilities of prostate cancer cells. Oncol Rep 2020; 44:2455-2464. [PMID: 33125130 PMCID: PMC7610322 DOI: 10.3892/or.2020.7786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 08/19/2020] [Indexed: 11/24/2022] Open
Abstract
Zinc finger protein 403 (ZFP403), located on human chromosome 17q12-21, is closely associated with the development of cancer. However, to date, there are a limited number of studies on the biological functions of this gene, particularly in prostate cancer (PCa). The results of the present study demonstrated that compared with normal tissues, the expression of ZFP403 was markedly lower in PCa tissues, as shown by the evaluation of the Gene Expression Profiling Interactive Analysis 2 database. The decreased expression of ZFP403 in PCa clinical tissues and cell lines was confirmed by immunohistochemistry, reverse transcription-quantitative PCR and western blot analysis. Using short harpin (sh)RNA inhibition, stably-silenced ZFP403 cell lines were then constructed by lentiviral transfection (LV-PC3-shRNA-1 and 2; LV-DU145-shRNA-1 and 2). The results revealed that the knockdown of ZFP403 in PCa cells promoted cellular proliferation, colony formation, migration and invasiveness in vitro. Moreover, the levels of tumor growth- and motility-related proteins were significantly altered after ZFP403-knockdown. A xenograft tumor model using nude mice was established to elucidate the role of ZFP403 in tumorigenesis in vivo. Tumor growth was significantly increased in mice injected with ZFP403-knockdown cells compared with the control mice. Overall, the findings of the present study demonstrate that ZFP403 functions as a tumor suppressor gene in PCa by affecting the proliferation, migration and invasiveness of PCa cells, suggesting its potential use as a clinical diagnostic marker.
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Affiliation(s)
- Xintong Xu
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 311402, P.R. China
| | - Zhihui Zhu
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 311402, P.R. China
| | - Yipeng Xu
- Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, P.R. China
| | - Shasha Tian
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 311402, P.R. China
| | - Yingjun Jiang
- Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, P.R. China
| | - Huajun Zhao
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 311402, P.R. China
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Xu W, Yu S, Xiong J, Long J, Zheng Y, Sang X. CeRNA regulatory network-based analysis to study the roles of noncoding RNAs in the pathogenesis of intrahepatic cholangiocellular carcinoma. Aging (Albany NY) 2020; 12:1047-1086. [PMID: 31956102 PMCID: PMC7053603 DOI: 10.18632/aging.102634] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 12/21/2019] [Indexed: 02/06/2023]
Abstract
To explore and understand the competitive mechanism of ceRNAs in intrahepatic cholangiocarcinoma (ICC), we used bioinformatics analysis methods to construct an ICC-related ceRNA regulatory network (ceRNET), which contained 340 lncRNA-miRNA-mRNA regulatory relationships based on the RNA expression datasets in the NCBI GEO database. We identified the core regulatory pathway RP11-328K4.1-hsa-miR-27a-3p-PROS1, which is related to ICC, for further validation by molecular biology assays. GO analysis of 44 differentially expressed mRNAs in ceRNET revealed that they were mainly enriched in biological processes including “negative regulation of epithelial cell proliferation” and "positive regulation of activated T lymphocyte proliferation.” KEGG analysis showed that they were mainly enriched in the “complement and coagulation cascade” pathway. The molecular biology assay showed that lncRNA RP11-328K4.1 expression was significantly lower in the cancerous tissues and peripheral plasma of ICC patients than in normal controls (p<0.05). In addition, hsa-miR-27a-3p was found to be significantly upregulated in the cancer tissues and peripheral plasma of ICC patients (p<0.05). Compared to normal controls, the expression of PROS1 mRNA was significantly downregulated in ICC patient cancer tissues (p<0.05) but not in peripheral plasma (p>0.05). Furthermore, ROC analysis revealed that RP11-328K4.1, hsa-miR-27a-3p, and PROS1 had significant diagnostic value in ICC. We concluded that the upregulation of lncRNA RP11-328K4.1, which might act as a miRNA sponge, exerts an antitumor effect in ICC by eliminating the inhibition of PROS1 mRNA expression by oncogenic miRNA hsa-miR-27a.
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Affiliation(s)
- Weiyu Xu
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Xi-Cheng, Beijing 100050, People's Republic of China
| | - Si Yu
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Wangfujing, Beijing 100730, People's Republic of China
| | - Jianping Xiong
- Department of Interventional Radiology, Beijing Friendship Hospital, Capital Medical University, Xi-Cheng, Beijing 100050, People's Republic of China
| | - Junyu Long
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Wangfujing, Beijing 100730, People's Republic of China
| | - Yongchang Zheng
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Wangfujing, Beijing 100730, People's Republic of China
| | - Xinting Sang
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Wangfujing, Beijing 100730, People's Republic of China
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Reyna MA, Leiserson MDM, Raphael BJ. Hierarchical HotNet: identifying hierarchies of altered subnetworks. Bioinformatics 2019; 34:i972-i980. [PMID: 30423088 PMCID: PMC6129270 DOI: 10.1093/bioinformatics/bty613] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Motivation The analysis of high-dimensional ‘omics data is often informed by the use of biological interaction networks. For example, protein–protein interaction networks have been used to analyze gene expression data, to prioritize germline variants, and to identify somatic driver mutations in cancer. In these and other applications, the underlying computational problem is to identify altered subnetworks containing genes that are both highly altered in an ‘omics dataset and are topologically close (e.g. connected) on an interaction network. Results We introduce Hierarchical HotNet, an algorithm that finds a hierarchy of altered subnetworks. Hierarchical HotNet assesses the statistical significance of the resulting subnetworks over a range of biological scales and explicitly controls for ascertainment bias in the network. We evaluate the performance of Hierarchical HotNet and several other algorithms that identify altered subnetworks on the problem of predicting cancer genes and significantly mutated subnetworks. On somatic mutation data from The Cancer Genome Atlas, Hierarchical HotNet outperforms other methods and identifies significantly mutated subnetworks containing both well-known cancer genes and candidate cancer genes that are rarely mutated in the cohort. Hierarchical HotNet is a robust algorithm for identifying altered subnetworks across different ‘omics datasets. Availability and implementation http://github.com/raphael-group/hierarchical-hotnet. Supplementary information Supplementary material are available at Bioinformatics online.
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Affiliation(s)
- Matthew A Reyna
- Department of Computer Science, Princeton University, Princeton, NJ, USA
| | - Mark D M Leiserson
- Department of Computer Science, University of Maryland, College Park, MD, USA
| | - Benjamin J Raphael
- Department of Computer Science, Princeton University, Princeton, NJ, USA
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21
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Drabovich AP, Saraon P, Drabovich M, Karakosta TD, Dimitromanolakis A, Hyndman ME, Jarvi K, Diamandis EP. Multi-omics Biomarker Pipeline Reveals Elevated Levels of Protein-glutamine Gamma-glutamyltransferase 4 in Seminal Plasma of Prostate Cancer Patients. Mol Cell Proteomics 2019; 18:1807-1823. [PMID: 31249104 PMCID: PMC6731075 DOI: 10.1074/mcp.ra119.001612] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Indexed: 11/06/2022] Open
Abstract
Seminal plasma, because of its proximity to prostate, is a promising fluid for biomarker discovery and noninvasive diagnostics. In this study, we investigated if seminal plasma proteins could increase diagnostic specificity of detecting primary prostate cancer and discriminate between high- and low-grade cancers. To select 147 most promising biomarker candidates, we combined proteins identified through five independent experimental or data mining approaches: tissue transcriptomics, seminal plasma proteomics, cell line secretomics, tissue specificity, and androgen regulation. A rigorous biomarker development pipeline based on selected reaction monitoring assays was designed to evaluate the most promising candidates. As a result, we qualified 76, and verified 19 proteins in seminal plasma of 67 negative biopsy and 152 prostate cancer patients. Verification revealed a prostate-specific, secreted and androgen-regulated protein-glutamine gamma-glutamyltransferase 4 (TGM4), which predicted prostate cancer on biopsy and outperformed age and serum Prostate-Specific Antigen (PSA). A machine-learning approach for data analysis provided improved multi-marker combinations for diagnosis and prognosis. In the independent verification set measured by an in-house immunoassay, TGM4 protein was upregulated 3.7-fold (p = 0.006) and revealed AUC = 0.66 for detecting prostate cancer on biopsy for patients with serum PSA ≥4 ng/ml and age ≥50. Very low levels of TGM4 (120 pg/ml) were detected in blood serum. Collectively, our study demonstrated rigorous evaluation of one of the remaining and not well-explored prostate-specific proteins within the medium-abundance proteome of seminal plasma. Performance of TGM4 warrants its further investigation within the distinct genomic subtypes and evaluation for the inclusion into emerging multi-biomarker panels.
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Affiliation(s)
- Andrei P Drabovich
- ‡Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, M5T 3L9 Canada; §Department of Clinical Biochemistry, University Health Network, Toronto, Ontario, M5T 3L9 Canada; ¶Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, M5T 3L9 Canada.
| | - Punit Saraon
- ‡Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, M5T 3L9 Canada
| | | | - Theano D Karakosta
- §Department of Clinical Biochemistry, University Health Network, Toronto, Ontario, M5T 3L9 Canada
| | | | - M Eric Hyndman
- **Department of Surgery, Division of Urology, Southern Alberta Institute of Urology, University of Calgary, Calgary, AB T2V 1P9, Canada
| | - Keith Jarvi
- ‡‡Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, M5T 3L9 Canada; §§Department of Surgery, Division of Urology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, M5T 3L9 Canada.
| | - Eleftherios P Diamandis
- ‡Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, M5T 3L9 Canada; §Department of Clinical Biochemistry, University Health Network, Toronto, Ontario, M5T 3L9 Canada; ¶Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, M5T 3L9 Canada; ‡‡Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, M5T 3L9 Canada.
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22
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Fararjeh AS, Liu YN. ZBTB46, SPDEF, and ETV6: Novel Potential Biomarkers and Therapeutic Targets in Castration-Resistant Prostate Cancer. Int J Mol Sci 2019; 20:E2802. [PMID: 31181727 PMCID: PMC6600524 DOI: 10.3390/ijms20112802] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 05/25/2019] [Accepted: 06/04/2019] [Indexed: 12/15/2022] Open
Abstract
Prostate cancer (PCa) is the second most common killer among men in Western countries. Targeting androgen receptor (AR) signaling by androgen deprivation therapy (ADT) is the current therapeutic regime for patients newly diagnosed with metastatic PCa. However, most patients relapse and become resistant to ADT, leading to metastatic castration-resistant PCa (CRPC) and eventually death. Several proposed mechanisms have been proposed for CRPC; however, the exact mechanism through which CRPC develops is still unclear. One possible pathway is that the AR remains active in CRPC cases. Therefore, understanding AR signaling networks as primary PCa changes into metastatic CRPC is key to developing future biomarkers and therapeutic strategies for PCa and CRPC. In the current review, we focused on three novel biomarkers (ZBTB46, SPDEF, and ETV6) that were demonstrated to play critical roles in CRPC progression, epidermal growth factor receptor tyrosine kinase inhibitor (EGFR TKI) drug resistance, and the epithelial-to-mesenchymal transition (EMT) for patients treated with ADT or AR inhibition. In addition, we summarize how these potential biomarkers can be used in the clinic for diagnosis and as therapeutic targets of PCa.
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Affiliation(s)
- AbdulFattah Salah Fararjeh
- PhD Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan.
| | - Yen-Nien Liu
- PhD Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan.
- Graduate Institute of Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan.
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 11031, Taiwan.
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23
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Ginisty A, Oliver L, Arnault P, Vallette F, Benzakour O, Coronas V. The vitamin K-dependent factor, protein S, regulates brain neural stem cell migration and phagocytic activities towards glioma cells. Eur J Pharmacol 2019; 855:30-39. [PMID: 31028740 DOI: 10.1016/j.ejphar.2019.04.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 04/18/2019] [Accepted: 04/18/2019] [Indexed: 10/26/2022]
Abstract
Malignant gliomas are the most common primary brain tumors. Due to both their invasive nature and resistance to multimodal treatments, these tumors have a very high percentage of recurrence leading in most cases to a rapid fatal outcome. Recent data demonstrated that neural stem/progenitor cells possess an inherent ability to migrate towards glioma cells, track them in the brain and reduce their growth. However, mechanisms involved in these processes have not been explored in-depth. In the present report, we investigated interactions between glioma cells and neural stem/progenitor cells derived from the subventricular zone, the major brain stem cell niche. Our data show that neural stem/progenitor cells are attracted by cultured glioma-derived factors. Using multiple approaches, we demonstrate for the first time that the vitamin K-dependent factor protein S produced by glioma cells is involved in tumor tropism through a mechanism involving the tyrosine kinase receptor Tyro3 that, in turn, is expressed by neural stem/progenitor cells. Neural stem/progenitor cells decrease the growth of both glioma cell cultures and clonogenic population. Cultured neural stem/progenitor cells also engulf, by phagocytosis, apoptotic glioma cell-derived fragments and this mechanism depends on the exposure of phosphatidylserine eat-me signal and is stimulated by protein S. The disclosure of a role of protein S/Tyro3 axis in neural stem/progenitor cell tumor-tropism and the demonstration of a phagocytic activity of neural stem/progenitor cells towards dead glioma cells that is regulated by protein S open up new perspectives for both stem cell biology and brain physiopathology.
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Affiliation(s)
- Aurélie Ginisty
- Laboratoire Signalisations et Transports Ioniques Membranaires (STIM), CNRS ERL 7003 Equipe 4CS - Université de Poitiers, UFR SFA, Pôle Biologie Santé, Bâtiment B36, 1 Rue Georges Bonnet, TSA 51106, 86073, POITIERS Cedex 9, France; Present Address: Biological Adaptation and Ageing (B2A) UMR 8256 CNRS-UPMC Institut de Biologie Paris Seine (IBPS) Sorbonne Université, 75005, Paris, France
| | - Lisa Oliver
- CRCINA, Inserm U1232, Université de Nantes, 44 0000, Nantes, France; Institut de Cancérologie de l'Ouest, René Gauducheau, 44 8000, St Herblain, France; Micronit GDR CNRS 3697, 75020, Paris, France
| | - Patricia Arnault
- Laboratoire Signalisations et Transports Ioniques Membranaires (STIM), CNRS ERL 7003 Equipe 4CS - Université de Poitiers, UFR SFA, Pôle Biologie Santé, Bâtiment B36, 1 Rue Georges Bonnet, TSA 51106, 86073, POITIERS Cedex 9, France; Micronit GDR CNRS 3697, 75020, Paris, France
| | - François Vallette
- CRCINA, Inserm U1232, Université de Nantes, 44 0000, Nantes, France; Institut de Cancérologie de l'Ouest, René Gauducheau, 44 8000, St Herblain, France; Micronit GDR CNRS 3697, 75020, Paris, France
| | - Omar Benzakour
- Inserm U1082, Université de Poitiers, 86073, Poitiers cedex 09, France
| | - Valérie Coronas
- Laboratoire Signalisations et Transports Ioniques Membranaires (STIM), CNRS ERL 7003 Equipe 4CS - Université de Poitiers, UFR SFA, Pôle Biologie Santé, Bâtiment B36, 1 Rue Georges Bonnet, TSA 51106, 86073, POITIERS Cedex 9, France; Micronit GDR CNRS 3697, 75020, Paris, France.
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24
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Stubbs FE, Conway-Campbell BL, Lightman SL. Thirty years of neuroendocrinology: Technological advances pave the way for molecular discovery. J Neuroendocrinol 2019; 31:e12653. [PMID: 30362285 DOI: 10.1111/jne.12653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/16/2018] [Accepted: 10/21/2018] [Indexed: 12/12/2022]
Abstract
Since the 1950s, the systems level interactions between the hypothalamus, pituitary and end organs such as the adrenal, thyroid and gonads have been well known; however, it is only over the last three decades that advances in molecular biology and information technology have provided a tremendous expansion of knowledge at the molecular level. Neuroendocrinology has benefitted from developments in molecular genetics, epigenetics and epigenomics, and most recently optogenetics and pharmacogenetics. This has enabled a new understanding of gene regulation, transcription, translation and post-translational regulation, which should help direct the development of drugs to treat neuroendocrine-related diseases.
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Affiliation(s)
- Felicity E Stubbs
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, University of Bristol, Bristol, UK
| | - Becky L Conway-Campbell
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, University of Bristol, Bristol, UK
| | - Stafford L Lightman
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, University of Bristol, Bristol, UK
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Abstract
IMPACT STATEMENT Cancer is among the leading causes of death worldwide. In 2016, 8.9 million people are estimated to have died from various forms of cancer. The current treatments, including surgery with chemotherapy and/or radiation therapy, are not effective enough to provide full protection from cancer, which highlights the need for developing novel therapy strategies. In this review, we summarize the molecular biology of a unique member of a subfamily of receptor tyrosine kinase, TYRO3 and discuss the new insights in TYRO3-targeted treatment for cancer therapy.
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Affiliation(s)
- Pei-Ling Hsu
- 1 Department of Physiology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Jonathan Jou
- 2 College of Medicine, University of Illinois, IL 60612, USA
| | - Shaw-Jenq Tsai
- 1 Department of Physiology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
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26
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Belczacka I, Latosinska A, Metzger J, Marx D, Vlahou A, Mischak H, Frantzi M. Proteomics biomarkers for solid tumors: Current status and future prospects. MASS SPECTROMETRY REVIEWS 2019; 38:49-78. [PMID: 29889308 DOI: 10.1002/mas.21572] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 05/08/2018] [Indexed: 06/08/2023]
Abstract
Cancer is a heterogeneous multifactorial disease, which continues to be one of the main causes of death worldwide. Despite the extensive efforts for establishing accurate diagnostic assays and efficient therapeutic schemes, disease prevalence is on the rise, in part, however, also due to improved early detection. For years, studies were focused on genomics and transcriptomics, aiming at the discovery of new tests with diagnostic or prognostic potential. However, cancer phenotypic characteristics seem most likely to be a direct reflection of changes in protein metabolism and function, which are also the targets of most drugs. Investigations at the protein level are therefore advantageous particularly in the case of in-depth characterization of tumor progression and invasiveness. Innovative high-throughput proteomic technologies are available to accurately evaluate cancer formation and progression and to investigate the functional role of key proteins in cancer. Employing these new highly sensitive proteomic technologies, cancer biomarkers may be detectable that contribute to diagnosis and guide curative treatment when still possible. In this review, the recent advances in proteomic biomarker research in cancer are outlined, with special emphasis placed on the identification of diagnostic and prognostic biomarkers for solid tumors. In view of the increasing number of screening programs and clinical trials investigating new treatment options, we discuss the molecular connections of the biomarkers as well as their potential as clinically useful tools for diagnosis, risk stratification and therapy monitoring of solid tumors.
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Affiliation(s)
- Iwona Belczacka
- Mosaiques-Diagnostics GmbH, Hannover, Germany
- University Hospital RWTH Aachen, Institute for Molecular Cardiovascular Research (IMCAR), Aachen, Germany
| | | | | | - David Marx
- Hôpitaux Universitaires de Strasbourg, Service de Transplantation Rénale, Strasbourg, France
- Laboratoire de Spectrométrie de Masse BioOrganique (LSMBO), University of Strasbourg, National Center for Scientific Research (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC) UMR 7178, Strasbourg, France
| | - Antonia Vlahou
- Biotechnology Division, Biomedical Research Foundation, Academy of Athens (BRFAA), Athens, Greece
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27
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Kawahara R, Ortega F, Rosa-Fernandes L, Guimarães V, Quina D, Nahas W, Schwämmle V, Srougi M, Leite KRM, Thaysen-Andersen M, Larsen MR, Palmisano G. Distinct urinary glycoprotein signatures in prostate cancer patients. Oncotarget 2018; 9:33077-33097. [PMID: 30237853 PMCID: PMC6145689 DOI: 10.18632/oncotarget.26005] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 07/31/2018] [Indexed: 12/14/2022] Open
Abstract
Novel biomarkers are needed to complement prostate specific antigen (PSA) in prostate cancer (PCa) diagnostic screening programs. Glycoproteins represent a hitherto largely untapped resource with a great potential as specific and sensitive tumor biomarkers due to their abundance in bodily fluids and their dynamic and cancer-associated glycosylation. However, quantitative glycoproteomics strategies to detect potential glycoprotein cancer markers from complex biospecimen are only just emerging. Here, we describe a glycoproteomics strategy for deep quantitative mapping of N- and O-glycoproteins in urine with a view to investigate the diagnostic value of the glycoproteome to discriminate PCa from benign prostatic hyperplasia (BPH), two conditions that remain difficult to clinically stratify. Total protein extracts were obtained, concentrated and digested from urine of six PCa patients (Gleason score 7) and six BPH patients. The resulting peptide mixtures were TMT-labeled and mixed prior to a multi-faceted sample processing including hydrophilic interaction liquid chromatography (HILIC) and titanium dioxide SPE based enrichment, endo-/exoglycosidase treatment and HILIC-HPLC pre-fractionation. The isolated N- and O-glycopeptides were detected and quantified using high resolution mass spectrometry. We accurately quantified 729 N-glycoproteins spanning 1,310 unique N-glycosylation sites and observed 954 and 965 unique intact N- and O-glycopeptides, respectively, across the two disease conditions. Importantly, a panel of 56 intact N-glycopeptides perfectly discriminated PCa and BPH (ROC: AUC = 1). This study has generated a panel of intact glycopeptides that has a potential for PCa detection.
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Affiliation(s)
- Rebeca Kawahara
- Instituto de Ciências Biomédicas, Departamento de Parasitologia, Universidade de São Paulo, USP, São Paulo, Brazil
| | - Fabio Ortega
- Laboratório de Investigação Médica da Disciplina de Urologia da Faculdade de Medicina da USP, LIM55, São Paulo, Brazil
| | - Livia Rosa-Fernandes
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Vanessa Guimarães
- Laboratório de Investigação Médica da Disciplina de Urologia da Faculdade de Medicina da USP, LIM55, São Paulo, Brazil
| | - Daniel Quina
- Instituto de Ciências Biomédicas, Departamento de Parasitologia, Universidade de São Paulo, USP, São Paulo, Brazil
| | - Willian Nahas
- Instituto do Câncer do Estado de São Paulo, ICESP, São Paulo, Brazil
| | - Veit Schwämmle
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Miguel Srougi
- Laboratório de Investigação Médica da Disciplina de Urologia da Faculdade de Medicina da USP, LIM55, São Paulo, Brazil
| | - Katia R M Leite
- Laboratório de Investigação Médica da Disciplina de Urologia da Faculdade de Medicina da USP, LIM55, São Paulo, Brazil
| | | | - Martin R Larsen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Giuseppe Palmisano
- Instituto de Ciências Biomédicas, Departamento de Parasitologia, Universidade de São Paulo, USP, São Paulo, Brazil
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29
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Latosinska A, Frantzi M, Merseburger AS, Mischak H. Promise and Implementation of Proteomic Prostate Cancer Biomarkers. Diagnostics (Basel) 2018; 8:diagnostics8030057. [PMID: 30158500 PMCID: PMC6174350 DOI: 10.3390/diagnostics8030057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 08/26/2018] [Accepted: 08/27/2018] [Indexed: 12/21/2022] Open
Abstract
Prostate cancer is one of the most commonly diagnosed malignancy and the fifth leading cause of cancer mortality in men. Despite the broad use of prostate-specific antigen test that resulted in an increase in number of diagnosed cases, disease management needs to be improved. Proteomic biomarkers alone and or in combination with clinical and pathological risk calculators are expected to improve on decreasing the unnecessary biopsies, stratify low risk patients, and predict response to treatment. To this end, significant efforts have been undertaken to identify novel biomarkers that can accurately discriminate between indolent and aggressive cancer forms and indicate those men at high risk for developing prostate cancer that require immediate treatment. In the era of “big data” and “personalized medicine” proteomics-based biomarkers hold great promise to provide clinically applicable tools, as proteins regulate all biological functions, and integrate genomic information with the environmental impact. In this review article, we aim to provide a critical assessment of the current proteomics-based biomarkers for prostate cancer and their actual clinical applicability. For that purpose, a systematic review of the literature published within the last 10 years was performed using the Web of Science Database. We specifically discuss the potential and prospects of use for diagnostic, prognostic and predictive proteomics-based biomarkers, including both body fluid- and tissue-based markers.
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Affiliation(s)
| | - Maria Frantzi
- Mosaiques Diagnostics GmbH, 30659 Hannover, Germany.
| | - Axel S Merseburger
- Department of Urology, University Clinic of Schleswig-Holstein, Campus Lübeck, 23562 Lübeck, Germany.
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30
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Wu G, Ma Z, Cheng Y, Hu W, Deng C, Jiang S, Li T, Chen F, Yang Y. Targeting Gas6/TAM in cancer cells and tumor microenvironment. Mol Cancer 2018; 17:20. [PMID: 29386018 PMCID: PMC5793417 DOI: 10.1186/s12943-018-0769-1] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 01/17/2018] [Indexed: 02/07/2023] Open
Abstract
Growth arrest-specific 6, also known as Gas6, is a human gene encoding the Gas6 protein, which was originally found to be upregulated in growth-arrested fibroblasts. Gas6 is a member of the vitamin K-dependent family of proteins expressed in many human tissues and regulates several biological processes in cells, including proliferation, survival and migration, by binding to its receptors Tyro3, Axl and Mer (TAM). In recent years, the roles of Gas6/TAM signalling in cancer cells and the tumour microenvironment have been studied, and some progress has made in targeted therapy, providing new potential directions for future investigations of cancer treatment. In this review, we introduce the Gas6 and TAM receptors and describe their involvement in different cancers and discuss the roles of Gas6 in cancer cells, the tumour microenvironment and metastasis. Finally, we introduce recent studies on Gas6/TAM targeting in cancer therapy, which will assist in the experimental design of future analyses and increase the potential use of Gas6 as a therapeutic target for cancer.
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Affiliation(s)
- Guiling Wu
- 0000 0004 1761 5538grid.412262.1Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences, Northwest University, 229 Taibai North Road, Xi’an, 710069 China ,0000 0004 1761 4404grid.233520.5Department of Aerospace Medicine, The Fourth Military Medical University, 169 Changle West Road, Xi’an, 710032 China
| | - Zhiqiang Ma
- 0000 0004 1791 6584grid.460007.5Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi’an, 710038 China
| | - Yicheng Cheng
- 0000 0004 1765 1045grid.410745.3Department of Stomatology, Bayi Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210002 China
| | - Wei Hu
- 0000 0004 1761 4404grid.233520.5Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi’an, 710032 China
| | - Chao Deng
- grid.452438.cDepartment of Cardiovascular Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, 277 Yanta West Road, Xi’an, Shaanxi 710061 China
| | - Shuai Jiang
- 0000 0004 1761 4404grid.233520.5Department of Aerospace Medicine, The Fourth Military Medical University, 169 Changle West Road, Xi’an, 710032 China
| | - Tian Li
- 0000 0004 1765 1045grid.410745.3Department of Stomatology, Bayi Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210002 China
| | - Fulin Chen
- 0000 0004 1761 5538grid.412262.1Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences, Northwest University, 229 Taibai North Road, Xi’an, 710069 China
| | - Yang Yang
- 0000 0004 1761 5538grid.412262.1Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences, Northwest University, 229 Taibai North Road, Xi’an, 710069 China ,0000 0004 1761 4404grid.233520.5Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi’an, 710032 China
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TAM receptors Tyro3 and Mer as novel targets in colorectal cancer. Oncotarget 2018; 7:56355-56370. [PMID: 27486820 PMCID: PMC5302919 DOI: 10.18632/oncotarget.10889] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 06/26/2016] [Indexed: 02/05/2023] Open
Abstract
Purpose CRC remains the third most common cancer worldwide with a high 5-year mortality rate in advanced cases. Combined with chemotherapy, targeted therapy is an additional treatment option. However as CRC still escapes targeted therapy the vigorous search for new targets is warranted to increase patients' overall survival. Results In this study we describe a new role for Gas6/protein S-TAM receptor interaction in CRC. Gas6, expressed by tumor-infiltrating M2-like macrophages, enhances malignant properties of tumor cells including proliferation, invasion and colony formation. Upon chemotherapy macrophages increase Gas6 synthesis, which significantly attenuates the cytotoxic effect of 5-FU chemotherapy on tumor cells. The anti-coagulant protein S has similar effects as Gas6. In CRC patient samples Tyro3 was overexpressed within the tumor. In-vitro inhibition of Tyro3 and Mer reduces tumor cell proliferation and sensitizes tumor cells to chemotherapy. Moreover high expression of Tyro3 and Mer in tumor tissue significantly shortens CRC patients' survival. Experimental design Various in vitro models were used to investigate the role of Gas6 and its TAM receptors in human CRC cells, by stimulation (rhGas6) and knockdown (siRNA) of Axl, Tyro3 and Mer. In terms of a translational research, we additionally performed an expression analysis in human CRC tissue and analyzed the medical record of these patients. Conclusions Tyro3 and Mer represent novel therapeutic targets in CRC and warrant further preclinical and clinical investigation in the future.
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Li X, Jiang J, Zhao X, Zhao Y, Cao Q, Zhao Q, Han H, Wang J, Yu Z, Peng B, Ying W, Qian X. In-depth analysis of secretome and N-glycosecretome of human hepatocellular carcinoma metastatic cell lines shed light on metastasis correlated proteins. Oncotarget 2017; 7:22031-49. [PMID: 27014972 PMCID: PMC5008342 DOI: 10.18632/oncotarget.8247] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 02/05/2016] [Indexed: 12/29/2022] Open
Abstract
Cancer cell metastasis is a major cause of cancer fatality. But the underlying molecular mechanisms remain incompletely understood, which results in the lack of efficient diagnosis, therapy and prevention approaches. Here, we report a systematic study on the secretory proteins (secretome) and secretory N-glycoproteins (N-glycosecretome) of four human hepatocellular carcinoma (HCC) cell lines with different metastatic potential, to explore the molecular mechanism of metastasis and supply the clues for effective measurement of diagnosis and therapy. Totally, 6242 unique gene products (GPs) and 1637 unique N-glycosites from 635 GPs were confidently identified. About 4000 GPs on average were quantified in each of the cell lines, 1156 of which show differential expression (p<0.05). Ninety-nine percentage of the significantly altered proteins were secretory proteins and proteins correlated to cell movement were significantly activated with the increasing of metastatic potential of the cell lines. Twenty-three GPs increased both in the secretome and the N-glycosecretome were chosen as candidates and verified by western blot analysis, and 10 of them were chosen for immunohistochemistry (IHC) analysis. The cumulative survival rates of the patients with candidate (FAT1, DKK3) suggested that these proteins might be used as biomarkers for HCC diagnosis. In addition, a comparative analysis with the published core human plasma database (1754 GPs) revealed that there were 182 proteins not presented in the human plasma database but identified by our studies, some of which were selected and verified successfully by western blotting in human plasma.
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Affiliation(s)
- Xianyu Li
- National Center for Protein Sciences Beijing, State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China.,Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jing Jiang
- National Center for Protein Sciences Beijing, State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
| | - Xinyuan Zhao
- National Center for Protein Sciences Beijing, State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
| | - Yan Zhao
- National Center for Protein Sciences Beijing, State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
| | - Qichen Cao
- National Center for Protein Sciences Beijing, State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
| | - Qing Zhao
- National Center for Protein Sciences Beijing, State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
| | - Huanhuan Han
- National Center for Protein Sciences Beijing, State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
| | - Jifeng Wang
- National Center for Protein Sciences Beijing, State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
| | - Zixiang Yu
- National Center for Protein Sciences Beijing, State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
| | - Bo Peng
- National Center for Protein Sciences Beijing, State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
| | - Wantao Ying
- National Center for Protein Sciences Beijing, State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
| | - Xiaohong Qian
- National Center for Protein Sciences Beijing, State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
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Effects of Thymoquinone on IL-6 Gene Expression and Some Cellular Signaling Pathways in Prostate Cancer PC3 Cells. Jundishapur J Nat Pharm Prod 2017. [DOI: 10.5812/jjnpp.63753] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Tonry C, Armstrong J, Pennington S. Probing the prostate tumour microenvironment II: Impact of hypoxia on a cell model of prostate cancer progression. Oncotarget 2017; 8:15307-15337. [PMID: 28410543 PMCID: PMC5362488 DOI: 10.18632/oncotarget.14574] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 11/22/2016] [Indexed: 12/21/2022] Open
Abstract
Approximately one in six men are diagnosed with Prostate Cancer every year in the Western world. Although it can be well managed and non-life threatening in the early stages, over time many patients cease to respond to treatment and develop castrate resistant prostate cancer (CRPC). CRPC represents a clinically challenging and lethal form of prostate cancer. Progression of CRPC is, in part, driven by the ability of cancer cells to alter their metabolic profile during the course of tumourgenesis and metastasis so that they can survive in oxygen and nutrient-poor environments and even withstand treatment. This work was carried out as a continuation of a study aimed towards gaining greater mechanistic understanding of how conditions within the tumour microenvironment impact on both androgen sensitive (LNCaP) and androgen independent (LNCaP-abl and LNCaP-abl-Hof) prostate cancer cell lines. Here we have applied technically robust and reproducible label-free liquid chromatography mass spectrometry analysis for comprehensive proteomic profiling of prostate cancer cell lines under hypoxic conditions. This led to the identification of over 4,000 proteins - one of the largest protein datasets for prostate cancer cell lines established to date. The biological and clinical significance of proteins showing a significant change in expression as result of hypoxic conditions was established. Novel, intuitive workflows were subsequently implemented to enable robust, reproducible and high throughput verification of selected proteins of interest. Overall, these data suggest that this strategy supports identification of protein biomarkers of prostate cancer progression and potential therapeutic targets for CRPC.
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Affiliation(s)
- Claire Tonry
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin, Ireland
| | | | - Stephen Pennington
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin, Ireland
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Che Mat MF, Abdul Murad NA, Ibrahim K, Mohd Mokhtar N, Wan Ngah WZ, Harun R, Jamal R. Silencing of PROS1 induces apoptosis and inhibits migration and invasion of glioblastoma multiforme cells. Int J Oncol 2016; 49:2359-2366. [PMID: 27840905 DOI: 10.3892/ijo.2016.3755] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 09/14/2016] [Indexed: 12/14/2022] Open
Abstract
Glioblastoma multiforme (GBM) is an aggressive brain tumor and most patients have poor prognosis. Despite many advances in research, there has been no significant improvement in the patient survival rate. New molecular therapies are being studied and RNA interference (RNAi) therapy is one of the promising approaches to improve prognosis and increase survival in patients with GBM. We performed a meta‑analysis of five different microarray datasets and identified 460 significantly upregulated genes in GBM. Loss‑of‑function screening of these upregulated genes using LN18 cells was performed to identify the significant target genes for glioma. Further investigations were performed using siRNA in LN18 cells and various functional assays were carried out on the selected candidate gene to understand further its role in GBM. We identified PROS1 as a candidate gene for GBM from the meta‑analysis and RNAi screening. Knockdown of PROS1 in LN18 cells significantly induced apoptosis compared to siPROS1‑untreated cells (p<0.05). Migration in cells treated with siPROS1 was reduced significantly (p<0.05) and this was confirmed with wound-healing assay. PROS1 knockdown showed substantial reduction in cell invasion up to 82% (p<0.01). In addition, inhibition of PROS1 leads to decrease in cellular proliferation by 18%. Knockdown of PROS1 in LN18 cells caused activation of both of the extrinsic and intrinsic apoptotic pathways. It caused major upregulation of FasL which is important for death receptor signaling activation and also downregulation of GAS6 and other members of TAM family of receptors. PROS1 may play an important role in the development of GBM through cellular proliferation, migration and invasion as well as apoptosis. Targeting PROS1 in GBM could be a novel therapeutic strategy in GBM treatment.
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Affiliation(s)
- Mohd Firdaus Che Mat
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia
| | - Nor Azian Abdul Murad
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia
| | - Kamariah Ibrahim
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia
| | - Norfilza Mohd Mokhtar
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia
| | - Wan Zurinah Wan Ngah
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia
| | - Roslan Harun
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia
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Doğan A, Demirci S, Türkmen NB, Çağlayan AB, Aydın S, Telci D, Kılıç E, Şahin K, Orhan C, Tuzcu M, Ekici AID, Şahin F. Schiff Base-Poloxamer P85 Combination Prevents Prostate Cancer Progression in C57/Bl6 Mice. Prostate 2016; 76:1454-63. [PMID: 27338565 DOI: 10.1002/pros.23229] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 06/14/2016] [Indexed: 11/06/2022]
Abstract
BACKGROUND Prostate cancer which is the second most common cause of death among men has a high incidence in recent years. Current therapeutic regimens should be improved to overcome drug resistance. At the metastatic stage, tumors become refractory to established chemotherapeutic treatments and cause serious problems at the clinics. Development of new drug molecules that are able to transport through the membrane easily and kill tumor cells rapidly is of great interest. METHOD In the current study, a novel Heterodinuclear copper(II)Mn(II) Schiff base complex combined with P85 was used for prostate cancer treatment in vivo. Tramp-C1 cells injected animals were subjected to chemotherapeutic formulation treatment and results were analyzed by toxicology analysis, tumor volume measurements, and histopathological analysis. 0.5 mg/kg Schiff base was selected and combined with 0.05% P85 according to the toxicology analysis showing the enzyme levels, blood parameters, and multiple organ toxicity. RESULTS Results demonstrated that Heterodinuclear copper(II)Mn(II) complex-P85 combination decreased tumor formation and tumor volume steadily over the course of experiments. CONCLUSIONS Overall, Heterodinuclear copper(II)Mn(II) complex-P85 exerted remarkable anti-cancer activity in vivo in C57/B16 mice. Prostate 76:1454-1463, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Ayşegül Doğan
- Faculty of Engineering and Architecture, Department of Genetics and Bioengineering, Yeditepe University, Istanbul, Turkey.
| | - Selami Demirci
- Faculty of Engineering and Architecture, Department of Genetics and Bioengineering, Yeditepe University, Istanbul, Turkey
| | - Neşe Başak Türkmen
- Department of Pharmaceutical Toxicology, Inonu University, Malatya, Turkey
| | - Ahmet Burak Çağlayan
- Faculty of Medicine, Department of Physiology, Istanbul Medipol University, Istanbul, Turkey
| | - Safa Aydın
- Faculty of Engineering and Architecture, Department of Genetics and Bioengineering, Yeditepe University, Istanbul, Turkey
| | - Dilek Telci
- Faculty of Engineering and Architecture, Department of Genetics and Bioengineering, Yeditepe University, Istanbul, Turkey
| | - Ertuğrul Kılıç
- Faculty of Medicine, Department of Physiology, Istanbul Medipol University, Istanbul, Turkey
| | - Kazım Şahin
- Faculty of Veterinary Medicine, Department of Animal Nutrition, Fırat University, Elazığ, Turkey
| | - Cemal Orhan
- Faculty of Veterinary Medicine, Department of Animal Nutrition, Fırat University, Elazığ, Turkey
| | - Mehmet Tuzcu
- Faculty of Science, Department of Biology, Fırat University, Elazığ, Turkey
| | | | - Fikrettin Şahin
- Faculty of Engineering and Architecture, Department of Genetics and Bioengineering, Yeditepe University, Istanbul, Turkey
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37
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Pilli VS, Plautz W, Majumder R. The Journey of Protein S from an Anticoagulant to a Signaling Molecule. JSM BIOCHEMISTRY AND MOLECULAR BIOLOGY 2016; 3:1014. [PMID: 29854880 PMCID: PMC5973875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Protein S (PS), a γ-carboxyglutamate-containing serum protein, was unexpectedly discovered in 1977. Soon after its discovery, PS gained the attention of researchers because of its physiological importance, acting as a multifunctional protein at the intersection of blood coagulation, inflammation, and other cellular processes. Protein S functions as an anticoagulant by directly inhibiting procoagulants, such as Factor Xa (FXa), FVa, and FIXa, while also serving as a cofactor for anticoagulants such as Activated Protein C and Tissue Factor Pathway Inhibitor. By associating with C4b binding protein (C4BP), PS has also been shown to minimize the effect of inflammation. Finally, PS promotes efferocytosis through TAM family protein kinase receptors. Mutations in the PS gene cause pathological conditions such as deep vein thrombosis and hereditary ischemia. In this review, we summarize studies regarding the multiple functions of PS.
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Affiliation(s)
| | | | - Rinku Majumder
- Corresponding author: Rinku Majumder, Department of Biochemistry & Molecular Biology, LSU Health Science Center, 1901 Perdido Street, MEB-7114, New Orleans, LA, USA, Tel: 504-5682810;
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38
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Ning P, Zhong JG, Jiang F, Zhang Y, Zhao J, Tian F, Li W. Role of protein S in castration-resistant prostate cancer-like cells. Endocr Relat Cancer 2016; 23:595-607. [PMID: 27342144 DOI: 10.1530/erc-16-0126] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 06/24/2016] [Indexed: 01/13/2023]
Abstract
Understanding how castration-resistant prostate cancer (CRPC) cells survive the androgen-deprivation condition is crucial for treatment of this advanced prostate cancer (PCa). Here, we reported for the first time the up-regulation of protein S (PROS), an anticoagulant plasma glycoprotein with multiple biological functions, in androgen-insensitive PCa cells and in experimentally induced castration-resistant PCa cells. Overexpression of exogenous PROS in LNCaP cells reduced androgen deprivation-induced apoptosis and enhanced anchorage-dependent clonogenic ability under androgen deprivation condition. Reciprocally, PROS1 knockdown inhibited cell invasiveness and migration, caused the growth inhibition of castration-resistant tumor xenograft under androgen-depleted conditions, and potentiated Taxol (a widely prescribed anti-neoplastic agent)-mediated cell death in PC3 cells. Furthermore, PROS overexpression significantly stimulated AKT activation but failed to evoke oxidative stress in LNCaP cells under normal condition, suggesting that the malignance-promoting effects of the above-mentioned pathway may occur in the order of oxidative stress/PROS/AKT. The potential mechanism may be due to control of oxidative stress-elicited activation of PI3K-AKT-mTOR pathway. Taken together, our gain-of-function, loss-of-function analyses suggest that PROS may facilitate cell proliferation and promote castration resistance in human castration-resistant PCa-like cells via its apoptosis-regulating property. Future study emphasizing on delineating how PROS regulate cellular processes controlling transformation during the development of castration resistance should open new doors for the development of novel therapeutic targets for CRPC.
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Affiliation(s)
- Peng Ning
- Department of Histology and EmbryologyFourth Military Medical University, Xi'an, China Department of Tumor Radiotherapy3rd Hospital of PLA, Bao Ji, China
| | - Jia-Guo Zhong
- Section 2 of Department of Surgery42nd Hospital of PLA, Jiajiang County Leshan City, Sichuan, China
| | - Fan Jiang
- Department of Tumor Radiotherapy3rd Hospital of PLA, Bao Ji, China
| | - Yi Zhang
- Department of Tumor Radiotherapy3rd Hospital of PLA, Bao Ji, China
| | - Jie Zhao
- Department of Histology and EmbryologyFourth Military Medical University, Xi'an, China
| | - Feng Tian
- Department of Thoracic SurgeryTangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Wei Li
- Department of Histology and EmbryologyFourth Military Medical University, Xi'an, China
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Begcevic I, Brinc D, Drabovich AP, Batruch I, Diamandis EP. Identification of brain-enriched proteins in the cerebrospinal fluid proteome by LC-MS/MS profiling and mining of the Human Protein Atlas. Clin Proteomics 2016; 13:11. [PMID: 27186164 PMCID: PMC4868024 DOI: 10.1186/s12014-016-9111-3] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 04/19/2016] [Indexed: 12/21/2022] Open
Abstract
Background Cerebrospinal fluid (CSF) is a proximal fluid which communicates closely with brain tissue, contains numerous brain-derived proteins and thus represents a promising fluid for discovery of biomarkers of central nervous system (CNS) diseases. The main purpose of this study was to generate an extensive CSF proteome and define brain-related proteins identified in CSF, suitable for development of diagnostic assays. Methods Six non-pathological CSF samples from three female and three male individuals were selected for CSF analysis. Samples were first subjected to strong cation exchange chromatography, followed by LC-MS/MS analysis. Secreted and membrane-bound proteins enriched in the brain tissues were retrieved from the Human Protein Atlas. Results In total, 2615 proteins were identified in the CSF. The number of proteins identified per individual sample ranged from 1109 to 1421, with inter-individual variability between six samples of 21 %. Based on the Human Protein Atlas, 78 brain-specific proteins found in CSF samples were proposed as a signature of brain-enriched proteins in CSF. Conclusion A combination of Human Protein Atlas database and experimental search of proteins in specific body fluid can be applied as an initial step in search for disease biomarkers specific for a particular tissue. This signature may be of significant interest for development of novel diagnostics of CNS diseases and identification of drug targets. Electronic supplementary material The online version of this article (doi:10.1186/s12014-016-9111-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ilijana Begcevic
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON Canada ; Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON Canada
| | - Davor Brinc
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON Canada ; Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON Canada ; Department of Clinical Biochemistry, University Health Network, Toronto, ON Canada
| | - Andrei P Drabovich
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON Canada ; Department of Clinical Biochemistry, University Health Network, Toronto, ON Canada
| | - Ihor Batruch
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON Canada
| | - Eleftherios P Diamandis
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON Canada ; Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON Canada ; Department of Clinical Biochemistry, University Health Network, Toronto, ON Canada
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40
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Chen C, Zhang LG, Liu J, Han H, Chen N, Yao AL, Kang SS, Gao WX, Shen H, Zhang LJ, Li YP, Cao FH, Li ZG. Bioinformatics analysis of differentially expressed proteins in prostate cancer based on proteomics data. Onco Targets Ther 2016; 9:1545-57. [PMID: 27051295 PMCID: PMC4803245 DOI: 10.2147/ott.s98807] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
We mined the literature for proteomics data to examine the occurrence and metastasis of prostate cancer (PCa) through a bioinformatics analysis. We divided the differentially expressed proteins (DEPs) into two groups: the group consisting of PCa and benign tissues (P&b) and the group presenting both high and low PCa metastatic tendencies (H&L). In the P&b group, we found 320 DEPs, 20 of which were reported more than three times, and DES was the most commonly reported. Among these DEPs, the expression levels of FGG, GSN, SERPINC1, TPM1, and TUBB4B have not yet been correlated with PCa. In the H&L group, we identified 353 DEPs, 13 of which were reported more than three times. Among these DEPs, MDH2 and MYH9 have not yet been correlated with PCa metastasis. We further confirmed that DES was differentially expressed between 30 cancer and 30 benign tissues. In addition, DEPs associated with protein transport, regulation of actin cytoskeleton, and the extracellular matrix (ECM)–receptor interaction pathway were prevalent in the H&L group and have not yet been studied in detail in this context. Proteins related to homeostasis, the wound-healing response, focal adhesions, and the complement and coagulation pathways were overrepresented in both groups. Our findings suggest that the repeatedly reported DEPs in the two groups may function as potential biomarkers for detecting PCa and predicting its aggressiveness. Furthermore, the implicated biological processes and signaling pathways may help elucidate the molecular mechanisms of PCa carcinogenesis and metastasis and provide new targets for clinical treatment.
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Affiliation(s)
- Chen Chen
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan, People's Republic of China
| | - Li-Guo Zhang
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan, People's Republic of China
| | - Jian Liu
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan, People's Republic of China
| | - Hui Han
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan, People's Republic of China
| | - Ning Chen
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan, People's Republic of China
| | - An-Liang Yao
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan, People's Republic of China
| | - Shao-San Kang
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan, People's Republic of China
| | - Wei-Xing Gao
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan, People's Republic of China
| | - Hong Shen
- Department of Modern Technology and Education Center, North China University of Science and Technology, Tangshan, People's Republic of China
| | - Long-Jun Zhang
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan, People's Republic of China
| | - Ya-Peng Li
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan, People's Republic of China
| | - Feng-Hong Cao
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan, People's Republic of China
| | - Zhi-Guo Li
- Department of Medical Research Center, International Science and Technology Cooperation Base of Geriatric Medicine, North China University of Science and Technology, Tangshan, People's Republic of China
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Ding W, Hu Z, Zhang Z, Ma Q, Tang H, Ma Z. Physapubescin B Exhibits Potent Activity against Human Prostate Cancer In Vitro and In Vivo. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:9504-9512. [PMID: 26415552 DOI: 10.1021/acs.jafc.5b03045] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The present data showed that a natural compound isolated from the plant Physalis pubescens L. (Solanaceae), physapubescin B, exhibited antitumor activity against prostate cancer in vitro and in vivo. Treating prostate cancer cells with physapubescin B resulted in the accumulation of cells in the G2/M phase, which was associated with reduced Cdc25C levels and increased levels of CyclinB1, P21 as well as p-Cdk1 (Tyr15). Additionally, reactive oxygen species (ROS) generation was increased in physapubescin B-treated PC-3 cells. Furthermore, the physapubescin B-induced decrease of Cdc25C protein expression together with the G2/M phase cell cycle arrest were significantly abrogated by antioxidant NAC and GSH. Our data also demonstrated that physapubescin B exhibited strong in vivo antitumor efficacy in human prostate cancer PC3 xenograft. In conclusion, our results provide clear evidence that physapubescin B exhibits antitumor activity both in vitro and in vivo and deserves further development as an anticancer agent.
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Affiliation(s)
- Wanjing Ding
- Institute of Marine Biology, Ocean College of Zhejiang University , Hangzhou, Zhejiang 310058, China
| | - Zhijuan Hu
- Institute of Marine Biology, Ocean College of Zhejiang University , Hangzhou, Zhejiang 310058, China
| | - Zhewen Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University , Hangzhou, Zhejiang 310058, China
| | - Qiaoqiao Ma
- Institute of Marine Biology, Ocean College of Zhejiang University , Hangzhou, Zhejiang 310058, China
| | - Huifang Tang
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University , Hangzhou, Zhejiang 310058, China
| | - Zhongjun Ma
- Institute of Marine Biology, Ocean College of Zhejiang University , Hangzhou, Zhejiang 310058, China
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Kulhari H, Pooja D, Singh MK, Kuncha M, Adams DJ, Sistla R. Bombesin-conjugated nanoparticles improve the cytotoxic efficacy of docetaxel against gastrin-releasing but androgen-independent prostate cancer. Nanomedicine (Lond) 2015; 10:2847-59. [DOI: 10.2217/nnm.15.107] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: Bombesin (BBN)-conjugated polymeric nanoparticles to target docetaxel (DTX) to prostate cancer cells that overexpress gastrin-releasing peptides receptors. Materials & methods: In vitro cytotoxicity, uptake of nanoparticles and inhibition of cell migration were assessed against human prostate cancer cells. Preclinical pharmacokinetic and tissue-distribution studies of nanoparticles were performed in Balb/c mice and results compared with the marketed formulation Taxotere®. Results: BBN-conjugated DTX-loaded nanoparticles exhibited higher cytotoxicity, inhibition of cell migration and colony formation than non-targeted nanoparticles or DTX alone. More BBN-conjugated nanoparticles were taken up at a faster rate than unconjugated nanoparticles. In vivo, this drug delivery improved pharmacokinetics of DTX by increasing mean residence time and decreasing clearance. Conclusion: This study provides an alternate approach for polysorbate-free delivery of DTX, with improved in vivo performance.
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Affiliation(s)
- Hitesh Kulhari
- IICT-RMIT Research Centre, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Medicinal Chemistry & Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Health Innovations Research Institute, RMIT University, PO Box 71, Bundoora, Melbourne, VIC 3083, Australia
- School of Applied Sciences, RMIT University, Melbourne, Australia
| | - Deep Pooja
- Medicinal Chemistry & Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Mayank K Singh
- Medicinal Chemistry & Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Madhusudana Kuncha
- Medicinal Chemistry & Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - David J Adams
- Health Innovations Research Institute, RMIT University, PO Box 71, Bundoora, Melbourne, VIC 3083, Australia
| | - Ramakrishna Sistla
- Medicinal Chemistry & Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
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Dichotomy in the Epigenetic Mark Lysine Acetylation is Critical for the Proliferation of Prostate Cancer Cells. Cancers (Basel) 2015; 7:1622-42. [PMID: 26295410 PMCID: PMC4586787 DOI: 10.3390/cancers7030854] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 08/07/2015] [Accepted: 08/11/2015] [Indexed: 01/02/2023] Open
Abstract
The dynamics of lysine acetylation serve as a major epigenetic mark, which regulates cellular response to inflammation, DNA damage and hormonal changes. Microarray assays reveal changes in gene expression, but cannot predict regulation of a protein function by epigenetic modifications. The present study employs computational tools to inclusively analyze microarray data to understand the potential role of acetylation during development of androgen-independent PCa. The data revealed that the androgen receptor interacts with 333 proteins, out of which at least 92 proteins were acetylated. Notably, the number of cellular proteins undergoing acetylation in the androgen-dependent PCa was more as compared to the androgen-independent PCa. Specifically, the 32 lysine-acetylated proteins in the cellular models of androgen-dependent PCa were mainly involved in regulating stability as well as pre- and post-processing of mRNA. Collectively, the data demonstrate that protein lysine acetylation plays a crucial role during the transition of androgen-dependent to -independent PCa, which importantly, could also serve as a functional axis to unravel new therapeutic targets.
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Mirzadeh N, Privér SH, Abraham A, Shukla R, Bansal V, Bhargava SK. Linking Flavonoids to Gold - A New Family of Gold Compounds for Potential Therapeutic Applications. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500514] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Tonry CL, Doherty D, O’Shea C, Morrissey B, Staunton L, Flatley B, Shannon A, Armstrong J, Pennington SR. Discovery and Longitudinal Evaluation of Candidate Protein Biomarkers for Disease Recurrence in Prostate Cancer. J Proteome Res 2015; 14:2769-83. [DOI: 10.1021/acs.jproteome.5b00041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Claire L. Tonry
- Conway
Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - Darren Doherty
- Conway
Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - Carmel O’Shea
- St. Luke’s Hospital, Rathgar, Dublin 6, Dublin, Ireland
| | - Brian Morrissey
- Conway
Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - Lisa Staunton
- Conway
Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - Brian Flatley
- Conway
Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - Aoife Shannon
- St. Luke’s Hospital, Rathgar, Dublin 6, Dublin, Ireland
| | | | - Stephen R. Pennington
- Conway
Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
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Cabezón R, Carrera-Silva EA, Flórez-Grau G, Errasti AE, Calderón-Gómez E, Lozano JJ, España C, Ricart E, Panés J, Rothlin CV, Benítez-Ribas D. MERTK as negative regulator of human T cell activation. J Leukoc Biol 2015; 97:751-60. [PMID: 25624460 DOI: 10.1189/jlb.3a0714-334r] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The aim of this study was to test the hypothesis whether MERTK, which is up-regulated in human DCs treated with immunosuppressive agents, is directly involved in modulating T cell activation. MERTK is a member of the TAM family and contributes to regulating innate immune response to ACs by inhibiting DC activation in animal models. However, whether MERTK interacts directly with T cells has not been addressed. Here, we show that MERTK is highly expressed on dex-induced human tol-DCs and participates in their tolerogenic effect. Neutralization of MERTK in allogenic MLR, as well as autologous DC-T cell cultures, leads to increased T cell proliferation and IFN-γ production. Additionally, we identify a previously unrecognized noncell-autonomous regulatory function of MERTK expressed on DCs. Mer-Fc protein, used to mimic MERTK on DCs, suppresses naïve and antigen-specific memory T cell activation. This mechanism is mediated by the neutralization of the MERTK ligand PROS1. We find that MERTK and PROS1 are expressed in human T cells upon TCR activation and drive an autocrine proproliferative mechanism. Collectively, these results suggest that MERTK on DCs controls T cell activation and expansion through the competition for PROS1 interaction with MERTK in the T cells. In conclusion, this report identified MERTK as a potent suppressor of T cell response.
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Affiliation(s)
- Raquel Cabezón
- *Fundació Clínic per a la Recerca Biomèdica, Barcelona, Spain; Instituto de Medicina Experimental, Academia Nacional de Medicina, Buenos Aires, Argentina; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; 3ra Cátedra de Farmacologia, Facultad de Medicina, Universidad de Buenos Aires, Argentina; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Department of Gastroenterology, Hospital Clínic de Barcelona, Spain; and Department of Immunobiology, Yale University, New Haven, Connecticut, USA
| | - E Antonio Carrera-Silva
- *Fundació Clínic per a la Recerca Biomèdica, Barcelona, Spain; Instituto de Medicina Experimental, Academia Nacional de Medicina, Buenos Aires, Argentina; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; 3ra Cátedra de Farmacologia, Facultad de Medicina, Universidad de Buenos Aires, Argentina; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Department of Gastroenterology, Hospital Clínic de Barcelona, Spain; and Department of Immunobiology, Yale University, New Haven, Connecticut, USA
| | - Georgina Flórez-Grau
- *Fundació Clínic per a la Recerca Biomèdica, Barcelona, Spain; Instituto de Medicina Experimental, Academia Nacional de Medicina, Buenos Aires, Argentina; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; 3ra Cátedra de Farmacologia, Facultad de Medicina, Universidad de Buenos Aires, Argentina; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Department of Gastroenterology, Hospital Clínic de Barcelona, Spain; and Department of Immunobiology, Yale University, New Haven, Connecticut, USA
| | - Andrea E Errasti
- *Fundació Clínic per a la Recerca Biomèdica, Barcelona, Spain; Instituto de Medicina Experimental, Academia Nacional de Medicina, Buenos Aires, Argentina; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; 3ra Cátedra de Farmacologia, Facultad de Medicina, Universidad de Buenos Aires, Argentina; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Department of Gastroenterology, Hospital Clínic de Barcelona, Spain; and Department of Immunobiology, Yale University, New Haven, Connecticut, USA
| | - Elisabeth Calderón-Gómez
- *Fundació Clínic per a la Recerca Biomèdica, Barcelona, Spain; Instituto de Medicina Experimental, Academia Nacional de Medicina, Buenos Aires, Argentina; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; 3ra Cátedra de Farmacologia, Facultad de Medicina, Universidad de Buenos Aires, Argentina; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Department of Gastroenterology, Hospital Clínic de Barcelona, Spain; and Department of Immunobiology, Yale University, New Haven, Connecticut, USA
| | - Juan José Lozano
- *Fundació Clínic per a la Recerca Biomèdica, Barcelona, Spain; Instituto de Medicina Experimental, Academia Nacional de Medicina, Buenos Aires, Argentina; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; 3ra Cátedra de Farmacologia, Facultad de Medicina, Universidad de Buenos Aires, Argentina; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Department of Gastroenterology, Hospital Clínic de Barcelona, Spain; and Department of Immunobiology, Yale University, New Haven, Connecticut, USA
| | - Carolina España
- *Fundació Clínic per a la Recerca Biomèdica, Barcelona, Spain; Instituto de Medicina Experimental, Academia Nacional de Medicina, Buenos Aires, Argentina; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; 3ra Cátedra de Farmacologia, Facultad de Medicina, Universidad de Buenos Aires, Argentina; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Department of Gastroenterology, Hospital Clínic de Barcelona, Spain; and Department of Immunobiology, Yale University, New Haven, Connecticut, USA
| | - Elena Ricart
- *Fundació Clínic per a la Recerca Biomèdica, Barcelona, Spain; Instituto de Medicina Experimental, Academia Nacional de Medicina, Buenos Aires, Argentina; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; 3ra Cátedra de Farmacologia, Facultad de Medicina, Universidad de Buenos Aires, Argentina; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Department of Gastroenterology, Hospital Clínic de Barcelona, Spain; and Department of Immunobiology, Yale University, New Haven, Connecticut, USA
| | - Julián Panés
- *Fundació Clínic per a la Recerca Biomèdica, Barcelona, Spain; Instituto de Medicina Experimental, Academia Nacional de Medicina, Buenos Aires, Argentina; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; 3ra Cátedra de Farmacologia, Facultad de Medicina, Universidad de Buenos Aires, Argentina; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Department of Gastroenterology, Hospital Clínic de Barcelona, Spain; and Department of Immunobiology, Yale University, New Haven, Connecticut, USA
| | - Carla Vanina Rothlin
- *Fundació Clínic per a la Recerca Biomèdica, Barcelona, Spain; Instituto de Medicina Experimental, Academia Nacional de Medicina, Buenos Aires, Argentina; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; 3ra Cátedra de Farmacologia, Facultad de Medicina, Universidad de Buenos Aires, Argentina; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Department of Gastroenterology, Hospital Clínic de Barcelona, Spain; and Department of Immunobiology, Yale University, New Haven, Connecticut, USA
| | - Daniel Benítez-Ribas
- *Fundació Clínic per a la Recerca Biomèdica, Barcelona, Spain; Instituto de Medicina Experimental, Academia Nacional de Medicina, Buenos Aires, Argentina; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; 3ra Cátedra de Farmacologia, Facultad de Medicina, Universidad de Buenos Aires, Argentina; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Department of Gastroenterology, Hospital Clínic de Barcelona, Spain; and Department of Immunobiology, Yale University, New Haven, Connecticut, USA.
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Wan F, Qin X, Zhang G, Lu X, Zhu Y, Zhang H, Dai B, Shi G, Ye D. Oxidized low-density lipoprotein is associated with advanced-stage prostate cancer. Tumour Biol 2015; 36:3573-82. [PMID: 25566960 DOI: 10.1007/s13277-014-2994-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 12/17/2014] [Indexed: 10/24/2022] Open
Abstract
Clinical and epidemiological data suggest coronary artery disease shares etiology with prostate cancer (PCa). The aim of this work was to assess the effects of several serum markers reported in cardiovascular disease on PCa. Serum markers (oxidized low-density lipoprotein [ox-LDL], apolipoprotein [apo] B100, and apoB48) in peripheral blood samples from 50 patients from Fudan University Shanghai Cancer Center (FUSCC) with localized or lymph node metastatic PCa were investigated in this study. Twenty-five samples from normal individuals were set as controls. We first conducted enzyme-linked immunosorbent assay analysis to select candidate markers that were significantly different between these patients and controls. Then, the clinical relevance between OLR1 (the ox-LDL receptor) expression and PCa was analyzed in The Cancer Genome Atlas (TCGA) cohort. We also investigated the function of ox-LDL in PCa cell lines in vitro. Phosphorylation protein chips were used to analyze cell signaling pathways in ox-LDL-treated PC-3 cells. The ox-LDL level was found to be significantly correlated with N stage of prostate cancer. OLR1 expression was correlated with lymph node metastasis in the TCGA cohort. In vitro, ox-LDL stimulated the proliferation, migration, and invasion of LNCaP and PC-3 in a dose-dependent manner. The results of phosphoprotein microarray illustrated that ox-LDL could influence multiple signaling pathways of PC-3. Activation of proliferation promoting signaling pathways (including β-catenin, cMyc, NF-κB, STAT1, STAT3) as well as apoptosis-associating signaling pathways (including p27, caspase-3) demonstrated that ox-LDL had complicated effects on prostate cancer. Increased serum ox-LDL level and OLR1 expression may indicate advanced-stage PCa and lymph node metastasis. Moreover, ox-LDL could stimulate PCa proliferation, migration, and invasion in vitro.
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Affiliation(s)
- Fangning Wan
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
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Hulett T, Puri S, Curti B, Urba WJ, Fox BA. Comparison of proteomic and genomic analyses of vaccine cell lines shows men receiving prostate gvax immunotherapy develop increased humoral responses to common cell line proteins relative to mutated proteins. J Immunother Cancer 2014. [PMCID: PMC4288656 DOI: 10.1186/2051-1426-2-s3-p49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Drabovich AP, Martínez-Morillo E, Diamandis EP. Toward an integrated pipeline for protein biomarker development. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2014; 1854:677-86. [PMID: 25218201 DOI: 10.1016/j.bbapap.2014.09.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 08/08/2014] [Accepted: 09/04/2014] [Indexed: 01/06/2023]
Abstract
Protein biomarker development is a multidisciplinary task involving basic, translational and clinical research. Integration of multidisciplinary efforts in a single pipeline is challenging, but crucial to facilitate rational discovery of protein biomarkers and alleviate existing disappointments in the field. In this review, we discuss in detail individual phases of biomarker development pipeline, such as biomarker candidate identification, verification and validation. We focus on mass spectrometry as a principal technique for protein identification and quantification, and discuss complementary -omics approaches for selection of biomarker candidates. Proteomic samples, protein-based clinical laboratory tests and limitations of biomarker development are reviewed in detail, and critical assessment of all phases of biomarker development pipeline is provided. This article is part of a Special Issue entitled: Medical Proteomics.
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Affiliation(s)
- Andrei P Drabovich
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.
| | | | - Eleftherios P Diamandis
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada; Department of Clinical Biochemistry, University Health Network, Toronto, ON, Canada; Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, ON, Canada
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50
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Chen MM, Crous-Bou M, Setiawan VW, Prescott J, Olson SH, Wentzensen N, Black A, Brinton L, Chen C, Chen C, Cook LS, Doherty J, Friedenreich CM, Hankinson SE, Hartge P, Henderson BE, Hunter DJ, Le Marchand L, Liang X, Lissowska J, Lu L, Orlow I, Petruzella S, Polidoro S, Pooler L, Rebbeck TR, Risch H, Sacerdote C, Schumacher F, Sheng X, Shu XO, Weiss NS, Xia L, Van Den Berg D, Yang HP, Yu H, Chanock S, Haiman C, Kraft P, De Vivo I. Exome-wide association study of endometrial cancer in a multiethnic population. PLoS One 2014; 9:e97045. [PMID: 24810602 PMCID: PMC4014590 DOI: 10.1371/journal.pone.0097045] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 04/15/2014] [Indexed: 12/02/2022] Open
Abstract
Endometrial cancer (EC) contributes substantially to total burden of cancer morbidity and mortality in the United States. Family history is a known risk factor for EC, thus genetic factors may play a role in EC pathogenesis. Three previous genome-wide association studies (GWAS) have found only one locus associated with EC, suggesting that common variants with large effects may not contribute greatly to EC risk. Alternatively, we hypothesize that rare variants may contribute to EC risk. We conducted an exome-wide association study (EXWAS) of EC using the Infinium HumanExome BeadChip in order to identify rare variants associated with EC risk. We successfully genotyped 177,139 variants in a multiethnic population of 1,055 cases and 1,778 controls from four studies that were part of the Epidemiology of Endometrial Cancer Consortium (E2C2). No variants reached global significance in the study, suggesting that more power is needed to detect modest associations between rare genetic variants and risk of EC.
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Affiliation(s)
- Maxine M Chen
- Program in Genetic Epidemiology and Statistical Genetics, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Marta Crous-Bou
- Program in Genetic Epidemiology and Statistical Genetics, Harvard School of Public Health, Boston, Massachusetts, United States of America; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Veronica W Setiawan
- University of Southern California, Los Angeles, California, United States of America
| | - Jennifer Prescott
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Sara H Olson
- Memorial Sloan-Kettering Cancer Center, New York, New York, United States of America
| | - Nicolas Wentzensen
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Amanda Black
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Louise Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Chu Chen
- Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Constance Chen
- Program in Genetic Epidemiology and Statistical Genetics, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Linda S Cook
- University of New Mexico, Albuquerque, New Mexico, United States of America; Alberta Health Services - CancerControl Alberta, Calgary, Alberta, Canada
| | - Jennifer Doherty
- Geisel School of Medicine, Dartmouth College, Hanover, New Hampshire, United States of America
| | | | - Susan E Hankinson
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, United States of America; Department of Biostatistics and Epidemiology, University of Massachusetts, Amherst, Massachusetts, United States of America
| | - Patricia Hartge
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Brian E Henderson
- University of Southern California, Los Angeles, California, United States of America
| | - David J Hunter
- Program in Genetic Epidemiology and Statistical Genetics, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Loic Le Marchand
- University of Hawaii Cancer Center, Honolulu, Hawaii, United States of America
| | - Xiaolin Liang
- Memorial Sloan-Kettering Cancer Center, New York, New York, United States of America
| | - Jolanta Lissowska
- Department of Cancer Epidemiology and Prevention, M Sklodowska-Curie Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Lingeng Lu
- Yale University School of Public Health, New Haven, Connecticut, United States of America
| | - Irene Orlow
- Memorial Sloan-Kettering Cancer Center, New York, New York, United States of America
| | - Stacey Petruzella
- Memorial Sloan-Kettering Cancer Center, New York, New York, United States of America
| | - Silvia Polidoro
- Center for Cancer Prevention (CPO-Piemonte), Turin, Italy; Human Genetic Foundation (HuGeF), Turin, Italy
| | - Loreall Pooler
- University of Southern California, Los Angeles, California, United States of America
| | - Timothy R Rebbeck
- Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Harvey Risch
- Yale University School of Public Health, New Haven, Connecticut, United States of America
| | - Carlotta Sacerdote
- Center for Cancer Prevention (CPO-Piemonte), Turin, Italy; Human Genetic Foundation (HuGeF), Turin, Italy
| | - Frederick Schumacher
- Cancer Prevention Institute of California, Fremont, California, United States of America
| | - Xin Sheng
- University of Southern California, Los Angeles, California, United States of America
| | - Xiao-Ou Shu
- Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Noel S Weiss
- University of Washington, Seattle, Seattle, Washington, United States of America
| | - Lucy Xia
- University of Southern California, Los Angeles, California, United States of America
| | - David Van Den Berg
- University of Southern California, Los Angeles, California, United States of America
| | - Hannah P Yang
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Herbert Yu
- University of Hawaii Cancer Center, Honolulu, Hawaii, United States of America
| | - Stephen Chanock
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Christopher Haiman
- University of Southern California, Los Angeles, California, United States of America
| | - Peter Kraft
- Program in Genetic Epidemiology and Statistical Genetics, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Immaculata De Vivo
- Program in Genetic Epidemiology and Statistical Genetics, Harvard School of Public Health, Boston, Massachusetts, United States of America; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
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