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Tao ZY, Yang WF, Zhu WY, Wang LL, Li KY, Guan XY, Su YX. A neural-related gene risk score for head and neck squamous cell carcinoma. Oral Dis 2024; 30:477-491. [PMID: 36346196 DOI: 10.1111/odi.14434] [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: 07/18/2022] [Revised: 10/27/2022] [Accepted: 11/05/2022] [Indexed: 11/10/2022]
Abstract
OBJECTIVES This study aimed to establish a neural-related gene risk score (NRGRS) for the prediction of head and neck squamous cell carcinoma prognosis and explore its predictive value on the benefit of immune checkpoint inhibitor therapy. METHODS Based on the transcriptome data of HNSCC patients (n = 546) from The Cancer Genome Atlas database, 37 neural-related hub genes were identified by weighted gene co-expression network analysis. Four genes (ITGA5, PYGM, GNG7 and ATP2A3) were identified to construct NRGRS using Lasso-Cox regression method based on the derivation cohort and validated in the Gene Expression Omnibus cohort (n = 109). The survival analysis was performed to validate the prognostic value of NRGRS and immune characteristics in NRGRS-defined subgroups were analyzed. RESULTS NRGRS-high patients had a worse overall survival than NRGRS-low patients. Tumors with high NRGRS were more likely to have high infiltration of naive CD4+ T cells, M0, M2 macrophages and resting mast cells, which illustrated suppressive immunity and less benefit from immunotherapy therapy. CONCLUSION NRGRS strongly correlates with survival and is a promising biomarker to predict immunotherapy benefits for head and neck cancer patients. This study provides evidence for the potential correlation between neural-related transcriptome alteration and immune activity.
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Affiliation(s)
- Zhuo-Ying Tao
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong
| | - Wei-Fa Yang
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong
| | - Wang-Yong Zhu
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong
| | - Lei-Lei Wang
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong
| | - Kar Yan Li
- Clinical Research Centre, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong
| | - Xin-Yuan Guan
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - Yu-Xiong Su
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong
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Tao ZY, Wang L, Zhu WY, Zhang G, Su YX. Lingual Denervation Improves the Efficacy of Anti-PD-1 Immunotherapy in Oral Squamous Cell Carcinomas by Downregulating TGFβ Signaling. CANCER RESEARCH COMMUNICATIONS 2024; 4:418-430. [PMID: 38324026 PMCID: PMC10868515 DOI: 10.1158/2767-9764.crc-23-0192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 09/14/2023] [Accepted: 02/02/2024] [Indexed: 02/08/2024]
Abstract
PURPOSE Intratumoral nerve infiltration relates to tumor progression and poor survival in oral squamous cell carcinoma (OSCC). How neural involvement regulates antitumor immunity has not been well characterized. This study aims to investigate molecular mechanisms of regulating tumor aggressiveness and impairing antitumor immunity by nerve-derived factors. EXPERIMENTAL DESIGN We performed the surgical lingual denervation in an immunocompetent mouse OSCC model to investigate its effect on tumor growth and the efficacy of anti-PD-1 immunotherapy. A trigeminal ganglion neuron and OSCC cell coculture system was established to investigate the proliferation, migration, and invasion of tumor cells and the PD-L1 expression. Both the neuron-tumor cell coculture in vitro model and the OSCC animal model were explored. RESULTS Lingual denervation slowed down tumor growth and improved the efficacy of anti-PD-1 treatment in the OSCC model. Coculturing with neurons not only enhanced the proliferation, migration, and invasion but also upregulated TGFβ-SMAD2 signaling and PD-L1 expression of tumor cells. Treatment with the TGFβ signaling inhibitor galunisertib reversed nerve-derived tumor aggressiveness and downregulated PD-L1 on tumor cells. Similarly, lingual denervation in vivo decreased TGFβ and PD-L1 expression and increased CD8+ T-cell infiltration and the expression of IFNγ and TNFα within tumor. CONCLUSIONS Neural involvement enhanced tumor aggressiveness through upregulating TGFβ signaling and PD-L1 expression in OSCC, while denervation of OSCC inhibited tumor growth, downregulated TGFβ signaling, enhanced activities of CD8+ T cells, and improved the efficacy of anti-PD-1 immunotherapy. This study will encourage further research focusing on denervation as a potential adjuvant therapeutic approach in OSCC. SIGNIFICANCE This study revealed the specific mechanisms for nerve-derived cancer progression and impaired antitumor immunity in OSCC, providing a novel insight into the cancer-neuron-immune network as well as pointing the way for new strategies targeting nerve-cancer cross-talk as a potential adjuvant therapeutic approach for OSCC.
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Affiliation(s)
- Zhuo-Ying Tao
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong
| | - Leilei Wang
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong
| | - Wang-Yong Zhu
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong
| | - Gao Zhang
- Division of Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong
| | - Yu-Xiong Su
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong
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Naito Y, Koyama S, Masuhiro K, Hirai T, Uenami T, Inoue T, Osa A, Machiyama H, Watanabe G, Sax N, Villa J, Kinugasa-Katayama Y, Nojima S, Yaga M, Hosono Y, Okuzaki D, Satoh S, Tsuda T, Nakanishi Y, Suga Y, Morita T, Fukushima K, Nishide M, Shiroyama T, Miyake K, Iwahori K, Hirata H, Nagatomo I, Yano Y, Tamiya M, Kumagai T, Takemoto N, Inohara H, Yamasaki S, Yamashita K, Aoshi T, Akbay EA, Hosen N, Shintani Y, Takamatsu H, Mori M, Takeda Y, Kumanogoh A. Tumor-derived semaphorin 4A improves PD-1-blocking antibody efficacy by enhancing CD8 + T cell cytotoxicity and proliferation. SCIENCE ADVANCES 2023; 9:eade0718. [PMID: 37205755 DOI: 10.1126/sciadv.ade0718] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 04/14/2023] [Indexed: 05/21/2023]
Abstract
Immune checkpoint inhibitors (ICIs) have caused revolutionary changes in cancer treatment, but low response rates remain a challenge. Semaphorin 4A (Sema4A) modulates the immune system through multiple mechanisms in mice, although the role of human Sema4A in the tumor microenvironment remains unclear. This study demonstrates that histologically Sema4A-positive non-small cell lung cancer (NSCLC) responded significantly better to anti-programmed cell death 1 (PD-1) antibody than Sema4A-negative NSCLC. Intriguingly, SEMA4A expression in human NSCLC was mainly derived from tumor cells and was associated with T cell activation. Sema4A promoted cytotoxicity and proliferation of tumor-specific CD8+ T cells without terminal exhaustion by enhancing mammalian target of rapamycin complex 1 and polyamine synthesis, which led to improved efficacy of PD-1 inhibitors in murine models. Improved T cell activation by recombinant Sema4A was also confirmed using isolated tumor-infiltrating T cells from patients with cancer. Thus, Sema4A might be a promising therapeutic target and biomarker for predicting and promoting ICI efficacy.
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Affiliation(s)
- Yujiro Naito
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Immunology and Molecular Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Immunopathology, World Premier International Research Center (WPI), Immunology Frontier Research Center (IFReC), Osaka University, Suita, Osaka, Japan
| | - Shohei Koyama
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Immunology and Molecular Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research and Clinical Trial Center (EPOC), National Cancer Center, Kashiwa,Chiba, and Tokyo, Japan
| | - Kentaro Masuhiro
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Immunopathology, World Premier International Research Center (WPI), Immunology Frontier Research Center (IFReC), Osaka University, Suita, Osaka, Japan
| | - Takashi Hirai
- Department of Immunopathology, World Premier International Research Center (WPI), Immunology Frontier Research Center (IFReC), Osaka University, Suita, Osaka, Japan
- Department of Otorhinolaryngology-Head and Neck Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Takeshi Uenami
- Department of Thoracic Oncology, National Hospital Organization, Osaka Toneyama Medical Center, Toyonaka, Osaka, Japan
| | - Takako Inoue
- Department of Thoracic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Akio Osa
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hirotomo Machiyama
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Go Watanabe
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research and Clinical Trial Center (EPOC), National Cancer Center, Kashiwa,Chiba, and Tokyo, Japan
| | - Nicolas Sax
- KOTAI Biotechnologies Inc., Suita, Osaka, Japan
| | | | - Yumi Kinugasa-Katayama
- Department of Cellular Immunology, Research Institute for Microbial Diseases (RIMD), Osaka University, Suita, Osaka, Japan
| | - Satoshi Nojima
- Department of Pathology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Moto Yaga
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Immunopathology, World Premier International Research Center (WPI), Immunology Frontier Research Center (IFReC), Osaka University, Suita, Osaka, Japan
| | - Yuki Hosono
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Laboratory of Molecular Immunology, WPI, IFReC, Osaka University, Suita, Osaka, Japan
- Department of Molecular Immunology, RIMD, Osaka University, Suita, Osaka, Japan
| | - Daisuke Okuzaki
- Single Cell Genomics, Human Immunology, WPI, IFReC, Osaka University, Suita, Osaka, Japan
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Suita, Osaka, Japan
- Center for Infectious Diseases for Education and Research (CiDER), Osaka University, Suita, Osaka, Japan
| | - Shingo Satoh
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Immunopathology, World Premier International Research Center (WPI), Immunology Frontier Research Center (IFReC), Osaka University, Suita, Osaka, Japan
| | - Takeshi Tsuda
- Department of Otorhinolaryngology-Head and Neck Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yoshimitsu Nakanishi
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Immunopathology, World Premier International Research Center (WPI), Immunology Frontier Research Center (IFReC), Osaka University, Suita, Osaka, Japan
| | - Yasuhiko Suga
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Takayoshi Morita
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Immunopathology, World Premier International Research Center (WPI), Immunology Frontier Research Center (IFReC), Osaka University, Suita, Osaka, Japan
| | - Kiyoharu Fukushima
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Laboratory of Host Defense, WPI, IFReC, Osaka University, Suita, Osaka, Japan
| | - Masayuki Nishide
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Immunopathology, World Premier International Research Center (WPI), Immunology Frontier Research Center (IFReC), Osaka University, Suita, Osaka, Japan
| | - Takayuki Shiroyama
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Kotaro Miyake
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Kota Iwahori
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Haruhiko Hirata
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Izumi Nagatomo
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yukihiro Yano
- Department of Thoracic Oncology, National Hospital Organization, Osaka Toneyama Medical Center, Toyonaka, Osaka, Japan
| | - Motohiro Tamiya
- Department of Thoracic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Toru Kumagai
- Department of Thoracic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Norihiko Takemoto
- Department of Otorhinolaryngology-Head and Neck Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hidenori Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Sho Yamasaki
- Laboratory of Molecular Immunology, WPI, IFReC, Osaka University, Suita, Osaka, Japan
- Department of Molecular Immunology, RIMD, Osaka University, Suita, Osaka, Japan
| | | | - Taiki Aoshi
- Department of Cellular Immunology, Research Institute for Microbial Diseases (RIMD), Osaka University, Suita, Osaka, Japan
| | - Esra A Akbay
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Naoki Hosen
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Suita, Osaka, Japan
- Department of Hematology and Oncology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Laboratory of Cellular Immunotherapy, WPI, IFReC, Osaka University, Suita, Osaka, Japan
| | - Yasushi Shintani
- Department of General Thoracic Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hyota Takamatsu
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Immunopathology, World Premier International Research Center (WPI), Immunology Frontier Research Center (IFReC), Osaka University, Suita, Osaka, Japan
| | - Masahide Mori
- Department of Thoracic Oncology, National Hospital Organization, Osaka Toneyama Medical Center, Toyonaka, Osaka, Japan
| | - Yoshito Takeda
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Atsushi Kumanogoh
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Immunology and Molecular Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Immunopathology, World Premier International Research Center (WPI), Immunology Frontier Research Center (IFReC), Osaka University, Suita, Osaka, Japan
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Suita, Osaka, Japan
- Center for Infectious Diseases for Education and Research (CiDER), Osaka University, Suita, Osaka, Japan
- Japan Agency for Medical Research and Development-Core Research for Evolutional Science and Technology (AMED-CREST), Osaka University, Suita, Osaka, Japan
- Center for Advanced Modalities and DDS (CAMaD), Osaka University, Suita, Osaka, Japan
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Bica C, Tirpe A, Nutu A, Ciocan C, Chira S, Gurzau ES, Braicu C, Berindan-Neagoe I. Emerging roles and mechanisms of semaphorins activity in cancer. Life Sci 2023; 318:121499. [PMID: 36775114 DOI: 10.1016/j.lfs.2023.121499] [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: 11/28/2022] [Revised: 02/08/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023]
Abstract
Semaphorins are regulatory molecules that are linked to the modulation of several cancer processes, such as angiogenesis, cancer cell invasiveness and metastasis, tumor growth, as well as cancer cell survival. Semaphorin (SEMA) activity depends on the cancer histotypes and their particularities. In broad terms, the effects of SEMAs result from their interaction with specific receptors/co-receptors - Plexins, Neuropilins and Integrins - and the subsequent effects upon the downstream effectors (e.g. PI3K/AKT, MAPK/ERK). The present article serves as an integrative review work, discussing the broad implications of semaphorins in cancer, focusing on cell proliferation/survival, angiogenesis, invasion, metastasis, stemness, and chemo-resistance/response whilst highlighting their heterogeneity as a family. Herein, we emphasized that semaphorins are largely implicated in cancer progression, interacting with the tumor microenvironment components. Whilst some SEMAs (e.g. SEMA3A, SEMA3B) function widely as tumor suppressors, others (e.g. SEMA3C) act as pro-tumor semaphorins. The differences observed in terms of the biological structure of SEMAs and the particularities of each cancer histotypes require that each semaphorin be viewed as a unique entity, and its roles must be researched accordingly. A more in-depth and comprehensive view of the molecular mechanisms that promote and sustain the malignant behavior of cancer cells is of utmost importance.
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Affiliation(s)
- Cecilia Bica
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca 400337, Romania.
| | - Alexandru Tirpe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca 400337, Romania; Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania.
| | - Andreea Nutu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca 400337, Romania.
| | - Cristina Ciocan
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca 400337, Romania.
| | - Sergiu Chira
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca 400337, Romania.
| | - Eugen S Gurzau
- Cluj School of Public Health, College of Political, Administrative and Communication Sciences, Babes-Bolyai University, 7 Pandurilor Street, Cluj-Napoca, Romania; Environmental Health Center, 58 Busuiocului Street, 400240 Cluj-Napoca, Romania.
| | - Cornelia Braicu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca 400337, Romania.
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca 400337, Romania.
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Ciereszko A, Dietrich MA, Słowińska M, Nynca J, Ciborowski M, Kaczmarek MM, Myszczyński K, Kiśluk J, Majewska A, Michalska-Falkowska A, Kodzik N, Reszeć J, Sierko E, Nikliński J. Application of two-dimensional difference gel electrophoresis to identify protein changes between center, margin, and adjacent non-tumor tissues obtained from non-small-cell lung cancer with adenocarcinoma or squamous cell carcinoma subtype. PLoS One 2022; 17:e0268073. [PMID: 35512017 PMCID: PMC9071164 DOI: 10.1371/journal.pone.0268073] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/21/2022] [Indexed: 12/12/2022] Open
Abstract
Lung cancer is responsible for the most cancer-related mortality worldwide and the mechanism of its development is poorly understood. Proteomics has become a powerful tool offering vital knowledge related to cancer development. Using a two-dimensional difference gel electrophoresis (2D-DIGE) approach, we sought to compare tissue samples from non-small-cell lung cancer (NSCLC) patients taken from the tumor center and tumor margin. Two subtypes of NSCLC, adenocarcinoma (ADC) and squamous cell carcinoma (SCC) were compared. Data are available via ProteomeXchange with identifier PXD032736 and PXD032962 for ADC and SCC, respectively. For ADC proteins, 26 significant canonical pathways were identified, including Rho signaling pathways, a semaphorin neuronal repulsive signaling pathway, and epithelial adherens junction signaling. For SCC proteins, nine significant canonical pathways were identified, including hypoxia-inducible factor-1α signaling, thyroid hormone biosynthesis, and phagosome maturation. Proteins differentiating the tumor center and tumor margin were linked to cancer invasion and progression, including cell migration, adhesion and invasion, cytoskeletal structure, protein folding, anaerobic metabolism, tumor angiogenesis, EMC transition, epithelial adherens junctions, and inflammatory responses. In conclusion, we identified several proteins that are important for the better characterization of tumor development and molecular specificity of both lung cancer subtypes. We also identified proteins that may be important as biomarkers and/or targets for anticancer therapy.
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Affiliation(s)
- Andrzej Ciereszko
- Department of Gametes and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
- * E-mail:
| | - Mariola A. Dietrich
- Department of Gametes and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Mariola Słowińska
- Department of Gametes and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Joanna Nynca
- Department of Gametes and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Michał Ciborowski
- Metabolomics Laboratory, Clinical Research Centre, Medical University of Bialystok, Bialystok, Poland
| | - Monika M. Kaczmarek
- Molecular Biology Laboratory, Institute of Animal Reproduction and Food Research Polish Academy of Sciences, Olsztyn, Poland
| | - Kamil Myszczyński
- Molecular Biology Laboratory, Institute of Animal Reproduction and Food Research Polish Academy of Sciences, Olsztyn, Poland
| | - Joanna Kiśluk
- Department of Clinical Molecular Biology, Medical University of Bialystok, Bialystok, Poland
| | - Anna Majewska
- Department of Gametes and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | | | - Natalia Kodzik
- Department of Gametes and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Joanna Reszeć
- Department of Medical Pathomorphology, Medical University of Bialystok, Bialystok, Poland
| | - Ewa Sierko
- Department of Oncology, Medical University of Bialystok, Bialystok, Poland
| | - Jacek Nikliński
- Department of Clinical Molecular Biology, Medical University of Bialystok, Bialystok, Poland
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Identifying Function Determining Residues in Neuroimmune Semaphorin 4A. Int J Mol Sci 2022; 23:ijms23063024. [PMID: 35328445 PMCID: PMC8953949 DOI: 10.3390/ijms23063024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/07/2022] [Accepted: 03/09/2022] [Indexed: 02/04/2023] Open
Abstract
Semaphorin 4A (Sema4A) exerts a stabilizing effect on human Treg cells in PBMC and CD4+ T cell cultures by engaging Plexin B1. Sema4A deficient mice display enhanced allergic airway inflammation accompanied by fewer Treg cells, while Sema4D deficient mice displayed reduced inflammation and increased Treg cell numbers even though both Sema4 subfamily members engage Plexin B1. The main objectives of this study were: 1. To compare the in vitro effects of Sema4A and Sema4D proteins on human Treg cells; and 2. To identify function-determining residues in Sema4A critical for binding to Plexin B1 based on Sema4D homology modeling. We report here that Sema4A and Sema4D display opposite effects on human Treg cells in in vitro PBMC cultures; Sema4D inhibited the CD4+CD25+Foxp3+ cell numbers and CD25/Foxp3 expression. Sema4A and Sema4D competitively bind to Plexin B1 in vitro and hence may be doing so in vivo as well. Bayesian Partitioning with Pattern Selection (BPPS) partitioned 4505 Sema domains from diverse organisms into subgroups based on distinguishing sequence patterns that are likely responsible for functional differences. BPPS groups Sema3 and Sema4 into one family and further separates Sema4A and Sema4D into distinct subfamilies. Residues distinctive of the Sema3,4 family and of Sema4A (and by homology of Sema4D) tend to cluster around the Plexin B1 binding site. This suggests that the residues both common to and distinctive of Sema4A and Sema4D may mediate binding to Plexin B1, with subfamily residues mediating functional specificity. We mutated the Sema4A-specific residues M198 and F223 to alanine; notably, F223 in Sema4A corresponds to alanine in Sema4D. Mutant proteins were assayed for Plexin B1-binding and Treg stimulation activities. The F223A mutant was unable to stimulate Treg stability in in vitro PBMC cultures despite binding Plexin B1 with an affinity similar to the WT protein. This research is a first step in generating potent mutant Sema4A molecules with stimulatory function for Treg cells with a view to designing immunotherapeutics for asthma.
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Semaphorin 6C Suppresses Proliferation of Pancreatic Cancer Cells via Inhibition of the AKT/GSK3/β-Catenin/Cyclin D1 Pathway. Int J Mol Sci 2022; 23:ijms23052608. [PMID: 35269749 PMCID: PMC8910270 DOI: 10.3390/ijms23052608] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 02/22/2022] [Accepted: 02/24/2022] [Indexed: 02/01/2023] Open
Abstract
Semaphorins (SEMAs) are axon guidance factors that participate in axonal connections and nerve system development. However, the functional roles of SEMAs in tumorigenesis are still largely uncovered. By using in silico data analysis, we found that SEMA6C was downregulated in pancreatic cancer, and its reduction was correlated with worse survival rates. RNA sequencing revealed that cell cycle-related genes, especially cyclin D1, were significantly altered after blockage of SEMA6C by neutralizing antibodies or ectopic expressions of SEMA6C. Mechanistic investigation demonstrated that SEMA6C acts as a tumor suppressor in pancreatic cancer by inhibiting the AKT/GSK3 signaling axis, resulting in a decrease in cyclin D1 expression and cellular proliferation. The enhancement of cyclin D1 expression and cyclin-dependent kinase activation in SEMA6C-low cancer created a druggable target of CDK4/6 inhibitors. We also elucidated the mechanism underlying SEMA6C downregulation in pancreatic cancer and demonstrated a novel regulatory role of miR-124-3p in suppressing SEMA6C. This study provides new insights of SEMA6C-mediated anti-cancer action and suggests the treatment of SEMA6C-downregulated cancer by CDK4/6 inhibitors.
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Avouac J, Pezet S, Vandebeuque E, Orvain C, Gonzalez V, Marin G, Mouterde G, Daïen C, Allanore Y. Semaphorins: From Angiogenesis to Inflammation in Rheumatoid Arthritis. Arthritis Rheumatol 2021; 73:1579-1588. [PMID: 33605067 DOI: 10.1002/art.41701] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 02/16/2021] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To study the potential role of semaphorins in the pathogenesis of rheumatoid arthritis (RA). METHODS Microarray experiments were performed on Affymetrix GeneChip Human Exon 1.0 ST arrays in RA endothelial cells (ECs) and control ECs derived from circulating progenitors. Expression of class 3 and class 4 semaphorins and their receptors in the serum of RA patients and healthy controls was assessed by immunohistochemical analysis in synovial tissue and by enzyme-linked immunosorbent assay. RESULTS Microarray analysis revealed differential expression of class 3 and class 4 semaphorins and their receptors in RA ECs. Semaphorin 4A (SEMA4A), plexin D1, and neuropilin 1 messenger RNA (mRNA) levels were markedly increased in RA ECs by 1.75-, 2.21-, and 1.68-fold, respectively. Stimulation with tumor necrosis factor (TNF) led to a 2-fold increase in SEMA4A mRNA levels in RA ECs, and deficient SEMA4A expression modified RA EC angiogenic properties. Class 3 and class 4 semaphorins as well as their receptors were overexpressed in RA synovial tissue. A respective 1.30-fold increase and 1.54-fold increase in SEMA4A and SEMA3E, as well as a 24% decrease in SEMA3A, was observed in the serum of RA patients. Serum levels of SEMA4A, SEMA4D, and SEMA3A correlated with levels of inflammation and proangiogenic markers. In 2 independent cohorts of patients with low disease activity or with RA in remission, the presence of SEMA4A identified patients with residual disease activity. CONCLUSION Gene expression profiling of ECs identified class 3 and class 4 semaphorins as potential biomarkers and therapeutic candidates in RA, with confirmed overexpression in ECs, synovial vessels, and serum, and correlation with validated markers of inflammation and angiogenesis. Thus, semaphorins might be novel and appealing EC-derived inflammatory and proangiogenic targets in RA.
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Affiliation(s)
- Jérôme Avouac
- INSERM U1016, CNRS UMR8104, Institut Cochin, Université de Paris, Université Paris Descartes, Hôpital Cochin, AP-HP, Paris, France
| | - Sonia Pezet
- INSERM U1016, CNRS UMR8104, Institut Cochin, Université de Paris, Université Paris Descartes, Paris, France
| | - Eloïse Vandebeuque
- Université de Paris, Université Paris Descartes, Hôpital Cochin, AP-HP, Paris, France
| | - Cindy Orvain
- INSERM U1016, CNRS UMR8104, Institut Cochin, Université de Paris, Université Paris Descartes, Paris, France
| | - Virginie Gonzalez
- INSERM U1016, CNRS UMR8104, Institut Cochin, Université de Paris, Université Paris Descartes, Paris, France
| | - Grégory Marin
- Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Gaël Mouterde
- Centre Hospitalier Universitaire de Montpellier, Université de Montpellier, Montpellier, France
| | - Claire Daïen
- Centre Hospitalier Universitaire de Montpellier, Université de Montpellier, Montpellier, France
| | - Yannick Allanore
- INSERM U1016, CNRS UMR8104, Institut Cochin, Université de Paris, Université Paris Descartes, Hôpital Cochin, AP-HP, Paris, France
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9
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Semaphorin 4A restricts tumor progression by inhibiting angiogenesis of oral squamous cell carcinoma cells. Tissue Cell 2021; 69:101485. [PMID: 33460983 DOI: 10.1016/j.tice.2021.101485] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 12/15/2020] [Accepted: 12/31/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To investigate the effects of Semaphorin 4A (Sema4A) on the angiogenesis, migration and invasion of oral squamous cell carcinoma (OSCC) cells. METHODS Sema4A expression in OSCC patients was detected by Immunohistochemistry, and its relationship with clinicopathological features and prognosis of patients was analyzed. The mRNA and protein expression of Sema4A in primary human oral keratinocytes (HOKs) and OSCC cells (SCC-25, HSC-3, CAL-27) were determined by Western blotting and qRT-PCR. After HOKs, HSC-3 cells and SCC-25 cells transfected with Control/Sema4A CRISPR activation plasmid, the migration and invasion abilities were detected by Wound healing and Transwell invasion. Tube formation assay was also performed on endothelial cells and the contents of VEGF and bFGF were quantified using qRT-PCR and ELISA. RESULTS Cytoplasmic Sema4A expression was related to T classification, clinical stage and nodal metastasis of OSCC patients. Patients with low cytoplasmic Sema4A expression showed the higher microvessel density (MVD) and the poorer prognosis in OSCC. Compared with HOK, OSCC cells (SCC-25, HSC-3, CAL-27) declined apparently in Sema4A expression, which was much more significant in metastatic HSC-3 and SCC-25 cells. After HOKs, HSC-3 cells and SCC-25 cells transfected with Sema4A over-expression plasmid, the invasion and migration abilities were decreased. Besides, overexpression of Sema4A could significantly inhibit the tube formation of HUVEC induced by OSCC cells with reductions of angiogenic factors (VEGF and bFGF). CONCLUSION Over-expression of Sema4A could restrict tumor progression through inhibiting the angiogenesis, invasion and migration of OSCC cells.
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Tan S, Zang G, Wang Y, Sun Z, Li Y, Lu C, Wang Z. Differences of Angiogenesis Factors in Tumor and Diabetes Mellitus. Diabetes Metab Syndr Obes 2021; 14:3375-3388. [PMID: 34335038 PMCID: PMC8318726 DOI: 10.2147/dmso.s315362] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 07/04/2021] [Indexed: 12/11/2022] Open
Abstract
Angiogenesis, as a process occurring under the regulation of a variety of factors, is one of the important ways of vascular development. It coexists in a variety of pathological and physiological processes. Now a large number of studies have proved that tumor growth, metastasis, and various vascular complications of diabetes are closely related to angiogenesis, and an increasing number of studies have shown that there are many common factors between the two. But angiogenesis is the opposite of the two: it is enhanced in tumors and suppressed in diabetes. Therefore, this review discusses the causes of the phenomenon from the expression of various factors affecting angiogenesis in these two diseases and their effects on angiogenesis in the relevant microenvironment, as well as the application status of these factors or cells as therapeutic targets in the treatment of these two diseases.
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Affiliation(s)
- Shidong Tan
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
| | - Guangyao Zang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
| | - Ying Wang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
| | - Zhen Sun
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
| | - Yalan Li
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
| | - Cheng Lu
- General Office, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
- Correspondence: Cheng Lu General Office, Affiliated Hospital of Jiangsu University, 438 Jiefang Road, Zhenjiang, 212001, People's Republic of China, +86 511 88986902 Email
| | - Zhongqun Wang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
- Zhongqun Wang Department of Cardiology, Affiliated Hospital of Jiangsu University, 438 Jiefang Road, Zhenjiang, 212001, People’s Republic of ChinaTel +86 511 85030586 Email
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The Role of Semaphorins in Metabolic Disorders. Int J Mol Sci 2020; 21:ijms21165641. [PMID: 32781674 PMCID: PMC7460634 DOI: 10.3390/ijms21165641] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/20/2020] [Accepted: 07/28/2020] [Indexed: 12/15/2022] Open
Abstract
Semaphorins are a family originally identified as axonal guidance molecules. They are also involved in tumor growth, angiogenesis, immune regulation, as well as other biological and pathological processes. Recent studies have shown that semaphorins play a role in metabolic diseases including obesity, adipose inflammation, and diabetic complications, including diabetic retinopathy, diabetic nephropathy, diabetic neuropathy, diabetic wound healing, and diabetic osteoporosis. Evidence provides mechanistic insights regarding the role of semaphorins in metabolic diseases by regulating adipogenesis, hypothalamic melanocortin circuit, immune responses, and angiogenesis. In this review, we summarize recent progress regarding the role of semaphorins in obesity, adipose inflammation, and diabetic complications.
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12
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Rajabinejad M, Asadi G, Ranjbar S, Afshar Hezarkhani L, Salari F, Gorgin Karaji A, Rezaiemanesh A. Semaphorin 4A, 4C, and 4D: Function comparison in the autoimmunity, allergy, and cancer. Gene 2020; 746:144637. [PMID: 32244055 DOI: 10.1016/j.gene.2020.144637] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 03/10/2020] [Accepted: 03/30/2020] [Indexed: 01/02/2023]
Abstract
Semaphorins are a group of proteins that are divided into eight subclasses and identified by a conserved Sema domain on their carboxyl terminus. Sema4A, 4C, and 4D are the members of the fourth class of semaphorin family, which are known as membrane semaphorins; however, these molecules can be altered to soluble semaphorins by proteolytic cleavage. Semaphorins have various roles in the immune, nervous, and metabolic systems. In the immune system, these molecules contribute to the formation of cellular, humoral, and innate immune responses, such as inflammation, leukocyte migration, immunological synapse formation, and germinal center events. Given the diverse roles of semaphorins in the immune system, in this review, we have tried to give a comprehensive look at the role of these molecules in autoimmunity, allergy, and cancer. Sema4D and 4A seem to play a critical role in the pathogenesis of some autoimmune diseases, such as multiple sclerosis. In contrast, it has been shown that Sema4A and 4C have beneficial effects on allergies, and their absence can exacerbate the severity of the disease. In the case of cancer, an increase in all three of these molecules has been reported. Sema4D and 4C can contribute to tumor progression in human patients or experimental models, while the role of Sema4A has not yet been fully understood. In conclusion, semaphorins seem to be a favorable therapeutic target for autoimmune diseases and allergies. However, in cancer, studies have not yet been able to identify the exact role of semaphorins, and further studies are needed.
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Affiliation(s)
- Misagh Rajabinejad
- Student Research Committee, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran; Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Gelayol Asadi
- Student Research Committee, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran; Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sedigheh Ranjbar
- Student Research Committee, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran; Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Leila Afshar Hezarkhani
- Department of Neurology, Farabi Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Farhad Salari
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ali Gorgin Karaji
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Rezaiemanesh
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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13
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Iragavarapu-Charyulu V, Wojcikiewicz E, Urdaneta A. Semaphorins in Angiogenesis and Autoimmune Diseases: Therapeutic Targets? Front Immunol 2020; 11:346. [PMID: 32210960 PMCID: PMC7066498 DOI: 10.3389/fimmu.2020.00346] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 02/12/2020] [Indexed: 01/17/2023] Open
Abstract
The axonal guidance molecules, semaphorins, have been described to function both physiologically and pathologically outside of the nervous system. In this review, we focus on the vertebrate semaphorins found in classes 3 through 7 and their roles in vascular development and autoimmune diseases. Recent studies indicate that while some of these vertebrate semaphorins promote angiogenesis, others have an angiostatic function. Since some semaphorins are also expressed by different immune cells and are known to modulate immune responses, they have been implicated in autoimmune disorders such as multiple sclerosis, rheumatoid arthritis, systemic lupus erythematosus and systemic sclerosis. We conclude this review by addressing strategies targeting semaphorins as potential therapeutic agents for angiogenesis and autoimmune diseases.
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Affiliation(s)
| | - Ewa Wojcikiewicz
- Department of Biomedical Sciences, Florida Atlantic University, Boca Raton, FL, United States
| | - Alexandra Urdaneta
- Department of Biomedical Sciences, Florida Atlantic University, Boca Raton, FL, United States
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Lu BW, Xie LK. Potential applications of artemisinins in ocular diseases. Int J Ophthalmol 2019; 12:1793-1800. [PMID: 31741871 DOI: 10.18240/ijo.2019.11.20] [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: 08/28/2018] [Accepted: 04/17/2019] [Indexed: 02/07/2023] Open
Abstract
Artemisinin, also named qinghaosu, is a family of sesquiterpene trioxane lactone originally derived from the sweet wormwood plant (Artemisia annua), which is a traditional Chinese herb that has been universally used as anti-malarial agents for many years. Evidence has accumulated during the past few years which demonstrated the protective effects of artemisinin and its derivatives (artemisinins) in several other diseases beyond malaria, including cancers, autoimmune disorders, inflammatory diseases, viral and other parasite-related infections. Recently, this long-considered anti-malarial agent has been proved to possess anti-oxidant, anti-inflammatory, anti-apoptotic and anti-excitotoxic properties, which make it a potential treatment option for the ocular environment. In this review, we first described the overview of artemisinins, highlighting the activity of artemisinins to other diseases beyond malaria and the mechanisms of these actions. We then emphasized the main points of published results of using artemisinins in targeting ocular disorders, including uveitis, retinoblastoma, retinal neurodegenerative diseases and ocular neovascularization. To conclude, we believe that artemisinins could also be used as a promising therapeutic drug for ocular diseases, especially retinal vascular diseases in the near future.
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Affiliation(s)
- Bing-Wen Lu
- Department of Ophthalmology, Eye Hospital, China Academy of Chinese Medical Sciences, Beijing 100400, China
| | - Li-Ke Xie
- Department of Ophthalmology, Eye Hospital, China Academy of Chinese Medical Sciences, Beijing 100400, China
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15
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Luo P, Xiao Q, Wei PJ, Liao B, Wu FX. Identifying Disease-Gene Associations With Graph-Regularized Manifold Learning. Front Genet 2019; 10:270. [PMID: 31001321 PMCID: PMC6454152 DOI: 10.3389/fgene.2019.00270] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/12/2019] [Indexed: 12/18/2022] Open
Abstract
Complex diseases are known to be associated with disease genes. Uncovering disease-gene associations is critical for diagnosis, treatment, and prevention of diseases. Computational algorithms which effectively predict candidate disease-gene associations prior to experimental proof can greatly reduce the associated cost and time. Most existing methods are disease-specific which can only predict genes associated with a specific disease at a time. Similarities among diseases are not used during the prediction. Meanwhile, most methods predict new disease genes based on known associations, making them unable to predict disease genes for diseases without known associated genes.In this study, a manifold learning-based method is proposed for predicting disease-gene associations by assuming that the geodesic distance between any disease and its associated genes should be shorter than that of other non-associated disease-gene pairs. The model maps the diseases and genes into a lower dimensional manifold based on the known disease-gene associations, disease similarity and gene similarity to predict new associations in terms of the geodesic distance between disease-gene pairs. In the 3-fold cross-validation experiments, our method achieves scores of 0.882 and 0.854 in terms of the area under of the receiver operating characteristic (ROC) curve (AUC) for diseases with more than one known associated genes and diseases with only one known associated gene, respectively. Further de novo studies on Lung Cancer and Bladder Cancer also show that our model is capable of identifying new disease-gene associations.
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Affiliation(s)
- Ping Luo
- Division of Biomedical Engineering, University of SaskatchewanSaskatoon, SKCanada
| | - Qianghua Xiao
- School of Mathematics and Physics, University of South China, Hengyang, China
| | - Pi-Jing Wei
- Division of Biomedical Engineering, University of SaskatchewanSaskatoon, SKCanada
- College of Computer Science and Technology, Anhui University, Hefei, China
| | - Bo Liao
- School of Mathematics and Statistics, Hainan Normal University, Haikou, China
| | - Fang-Xiang Wu
- Division of Biomedical Engineering, University of SaskatchewanSaskatoon, SKCanada
- School of Mathematics and Statistics, Hainan Normal University, Haikou, China
- Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
- Department of Computer Science, University of Saskatchewan, Saskatoon, SK, Canada
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