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Clarin JD, Reddy N, Alexandropoulos C, Gao WJ. The role of cell adhesion molecule IgSF9b at the inhibitory synapse and psychiatric disease. Neurosci Biobehav Rev 2024; 156:105476. [PMID: 38029609 PMCID: PMC10842117 DOI: 10.1016/j.neubiorev.2023.105476] [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: 09/06/2023] [Revised: 11/15/2023] [Accepted: 11/18/2023] [Indexed: 12/01/2023]
Abstract
Understanding perturbations in synaptic function between health and disease states is crucial to the treatment of neuropsychiatric illness. While genome-wide association studies have identified several genetic loci implicated in synaptic dysfunction in disorders such as autism and schizophrenia, many have not been rigorously characterized. Here, we highlight immunoglobulin superfamily member 9b (IgSF9b), a cell adhesion molecule thought to localize exclusively to inhibitory synapses in the brain. While both pre-clinical and clinical studies suggest its association with psychiatric diseases, our understanding of IgSF9b in synaptic maintenance, neural circuits, and behavioral phenotypes remains rudimentary. Moreover, these functions wield undiscovered influences on neurodevelopment. This review evaluates current literature and publicly available gene expression databases to explore the implications of IgSF9b dysfunction in rodents and humans. Through a focused analysis of one high-risk gene locus, we identify areas requiring further investigation and unearth clues related to broader mechanisms contributing to the synaptic etiology of psychiatric disorders.
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Affiliation(s)
- Jacob D Clarin
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, United States
| | - Natasha Reddy
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, United States
| | - Cassandra Alexandropoulos
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, United States
| | - Wen-Jun Gao
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, United States.
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2
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Liu Y, Wang H, Zhao X, Zhang J, Zhao Z, Lian X, Zhang J, Kong F, Hu T, Wang T, Li X, Wang L, Wang D, Li C, Luan H, Liu X, Wang C, Jiang Y, Li X, Li F, Ji S, Wang Y, Li Z. Targeting the Immunoglobulin IGSF9 Enhances Antitumor T-cell Activity and Sensitivity to Anti-PD-1 Immunotherapy. Cancer Res 2023; 83:3385-3399. [PMID: 37506192 DOI: 10.1158/0008-5472.can-22-3115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 02/14/2023] [Accepted: 07/26/2023] [Indexed: 07/30/2023]
Abstract
Immune checkpoints modulate the immune response and represent important immunotherapy targets for cancer treatment. However, as many tumors are resistant to current immune checkpoint inhibitors, the discovery of novel immune checkpoints could facilitate the development of additional immunotherapeutic strategies to improve patient responses. Here, we identified increased expression of the adhesion molecule immunoglobulin superfamily member 9 (IGSF9) in tumor cells and tumor-infiltrating immune cells across multiple cancer types. IGSF9 overexpression or knockout in tumor cells did not alter cell proliferation in vitro or tumor growth in immunocompromised mice. Alternatively, IGSF9 deficient tumor cells lost the ability to suppress T-cell proliferation and exhibited reduced growth in immunocompetent mice. Similarly, growth of tumor cells was reduced in IGSF9 knockout syngeneic and humanized mice, accompanied by increased tumor-infiltrating T cells. Mechanistically, the extracellular domain (ECD) of IGSF9 bound to T cells and inhibited their proliferation and activation, and the tumor-promoting effect of IGSF9 ECD was reversed by CD3+ T-cell depletion. Anti-IGSF9 antibody treatment inhibited tumor growth and enhanced the antitumor efficacy of anti-programmed cell death protein 1 immunotherapy. Single-cell RNA sequencing revealed tumor microenvironment remodeling from tumor promoting to tumor suppressive following anti-IGSF9 treatment. Together, these results indicate that IGSF9 promotes tumor immune evasion and is a candidate immune checkpoint target. SIGNIFICANCE IGSF9 is an immune checkpoint regulator that suppresses T-cell activation in cancer and can be targeted to stimulate antitumor immunity and inhibit tumor growth.
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Affiliation(s)
- Yifan Liu
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Hongying Wang
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Xinyu Zhao
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Jiashen Zhang
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Shandong Agricultural University, Taian, Shandong, P.R. China
| | - Zhiling Zhao
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Xia Lian
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Juan Zhang
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Feng Kong
- Shandong Institute of Clinical Medicine, Shandong Provincial Hospital, Jinan, Shandong, P.R. China
| | - Tao Hu
- Department of thoracic surgery, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, P.R. China
| | - Ting Wang
- Department of Pathology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, P.R. China
| | - Xiaohua Li
- Yantai Central Blood Station, Yantai, Shandong, P.R. China
| | - Lei Wang
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Dapeng Wang
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Chunling Li
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Huiwen Luan
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Xiaoli Liu
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Chunyan Wang
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Yun Jiang
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Xiaomin Li
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Fangmin Li
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Shuhao Ji
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Yaopeng Wang
- Department of thoracic surgery, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, Shandong, P.R. China
| | - Zunling Li
- Department of Biochemistry and Molecular Biology, Shandong Tumor Immunotherapy Research Innovation Team, Binzhou Medical University, Yantai, Shandong, P.R. China
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Velázquez-Lizárraga AE, Sukonthamarn P, Junprung W, Nanakorn Z, Itsathitphaisarn O, Jaroenlak P, Tassanakajon A. Molecular characterization of turtle-like protein in whiteleg shrimp (Litopenaeus vannamei) and its role in Enterocytozoon hepatopenaei infection. FISH & SHELLFISH IMMUNOLOGY 2023; 140:108976. [PMID: 37506856 DOI: 10.1016/j.fsi.2023.108976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/22/2023] [Accepted: 07/25/2023] [Indexed: 07/30/2023]
Abstract
Enterocytozoon hepatopenaei (EHP) is a microsporidian parasite that infects shrimp hepatopancreas, causing growth retardation and disease susceptibility. Knowledge of the host-pathogen molecular mechanisms is essential to understanding the microsporidian pathogenesis. Turtle-like protein (TLP) is part of the immunoglobulin superfamily of proteins, which is widely distributed in the animal kingdom. TLP has multiple functions, such as cell surface receptors and cell adhesion molecules. The spore wall proteins (SWPs) of microsporidia are involved in the infection mechanisms. Some SWPs are responsible for spore adherence, which is part of the activation and host cell invasion processes. Previous studies showed that TLP from silkworms (Bombyx mori) interacted with SWP26, contributing to the infectivity of Nosema bombycis to its host. In this study, we identified and characterized for the first time, the Litopenaeus vannamei TLP gene (LvTLP), which encodes an 827-aa protein (92.4 kDa) composed of five immunoglobulin domains, two fibronectin type III domains, and a transmembrane region. The LvTLP transcript was expressed in all tested tissues and upregulated in the hepatopancreas at 1 and 7 days post-cohabitation (dpc) and at 9 dpc in hemocytes. To identify the LvTLP binding counterpart, recombinant (r)LvTLP and recombinant (r)EhSWP1 were produced in Escherichia coli. Coimmunoprecipitation and enzyme-linked immunosorbent assays demonstrated that rLvTLP interacted with rEhSWP with high affinity (KD = 1.20 × 10-7 M). In EHP-infected hepatopancreases, LvTLP was clustered and co-localized with some of the developing EHP plasmodia. Furthermore, LvTLP gene silencing reduced the EHP copy numbers compared with those of the control group, suggesting the critical role of LvTLP in EHP infection. These results provide insight into the molecular mechanisms of the host-pathogen interactions during EHP infection.
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Affiliation(s)
- Adrián E Velázquez-Lizárraga
- Center of Excellence for Molecular Biology and Genomic of Shrimp, Department of Biochemistry, Faculty of Science, Chulalongkorn University, 254 Phaya Thai Rd, Wang Mai, Pathum Wan, Bangkok, 10330, Thailand
| | - Pongsakorn Sukonthamarn
- Center of Excellence for Molecular Biology and Genomic of Shrimp, Department of Biochemistry, Faculty of Science, Chulalongkorn University, 254 Phaya Thai Rd, Wang Mai, Pathum Wan, Bangkok, 10330, Thailand
| | - Wisarut Junprung
- Center of Excellence for Molecular Biology and Genomic of Shrimp, Department of Biochemistry, Faculty of Science, Chulalongkorn University, 254 Phaya Thai Rd, Wang Mai, Pathum Wan, Bangkok, 10330, Thailand
| | - Zittipong Nanakorn
- Center of Excellence for Molecular Biology and Genomic of Shrimp, Department of Biochemistry, Faculty of Science, Chulalongkorn University, 254 Phaya Thai Rd, Wang Mai, Pathum Wan, Bangkok, 10330, Thailand
| | - Ornchuma Itsathitphaisarn
- Center of Excellence for Shrimp Molecular Biology and Biotechnology (Centex Shrimp), Faculty of Science, Mahidol University, 272 Rama VI, Road, Thung Phaya Thai, Ratchathewi, Bangkok, 10400, Thailand
| | - Pattana Jaroenlak
- Center of Excellence for Molecular Biology and Genomic of Shrimp, Department of Biochemistry, Faculty of Science, Chulalongkorn University, 254 Phaya Thai Rd, Wang Mai, Pathum Wan, Bangkok, 10330, Thailand
| | - Anchalee Tassanakajon
- Center of Excellence for Molecular Biology and Genomic of Shrimp, Department of Biochemistry, Faculty of Science, Chulalongkorn University, 254 Phaya Thai Rd, Wang Mai, Pathum Wan, Bangkok, 10330, Thailand.
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Han Y, Fu Y, Shi Q, Liu H, Sun H, Niu C, Fu L. The ALDH2, IGSF9, and PRDM16 Proteins as Predictive Biomarkers for Prognosis in Breast Cancer. Clin Breast Cancer 2023; 23:e140-e150. [PMID: 36639264 DOI: 10.1016/j.clbc.2022.12.009] [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: 07/11/2022] [Revised: 12/04/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
INTRODUCTION ALDH2, IGSF9, and PRDM16 play crucial roles in regulating diverse cellular pathophysiologic functions. The current study was to evaluate the effect of the 3 proteins on clinicopathologic features and prognosis of patients with breast cancer. MATERIALS AND METHODS The formalin-fixed and paraffin-embedded tissue specimens were collected from breast cancer patients by immunohistochemistry (IHC) were analyzed. RESULTS Of the 216 patients enrolled, ALDH2 high expression was significantly correlated with the age (p = .040), larger tumor size (p = .001), LVI (p < .001), LNM (p < .001), advanced TNM staging (p < .001), PR (p = .027), HER2 status (p = .002), and molecular subtype (p = .003). IGSF9 low expression was significantly correlated with the LV1 (p = .024), LNM (p = .024), advanced TNM staging (p = .001). The low expression of PRDM16 was significantly correlated with age (p = .023), and LNM (p = .014). The A+I-P- expression (13.4%) were markedly correlated with lymphatic vessel invasion (LVI) (p < .001), lymph node metastasis (LNM) (p < .001), advanced TNM staging (p < .001). Furthermore, patients with A+I-P- expression had significantly advanced-stage breast cancer [stage III (72.4%) vs. (23.0%)]. Univariate and multivariate analysis identified variables (ie, larger tumor size, lymph node involvement, and A+I-P- expression) as independent prognostic factors for survival. CONCLUSION Our results reveal ALDH2 high expression, IGSF9 and PRDM16 low expression, A+I-P- expression was associated with advanced clinicopathological characteristics, and shorter OS and DFS in breast cancer patients. The 3 proteins may be potential prognosis markers and therapeutic targets for breast cancer patients.
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Affiliation(s)
- Yunwei Han
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; National Clinical Research Center of Cancer, Tianjin, China; Tianjin's Clinical Research Center for Cancer, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Tianjin, China; Ministry of Education, Breast Cancer Innovation Team of the Ministry of Education, Tianjin, China; Key Laboratory of Cancer Prevention and Therapy, State Key Laboratory of Breast Cancer Research, Tianjin, China
| | - Yiru Fu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; National Clinical Research Center of Cancer, Tianjin, China; Tianjin's Clinical Research Center for Cancer, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Tianjin, China; Ministry of Education, Breast Cancer Innovation Team of the Ministry of Education, Tianjin, China; Key Laboratory of Cancer Prevention and Therapy, State Key Laboratory of Breast Cancer Research, Tianjin, China
| | - Qianqian Shi
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; National Clinical Research Center of Cancer, Tianjin, China; Tianjin's Clinical Research Center for Cancer, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Tianjin, China; Ministry of Education, Breast Cancer Innovation Team of the Ministry of Education, Tianjin, China; Key Laboratory of Cancer Prevention and Therapy, State Key Laboratory of Breast Cancer Research, Tianjin, China; Department of Laboratory Medicine, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hanjiao Liu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; National Clinical Research Center of Cancer, Tianjin, China; Tianjin's Clinical Research Center for Cancer, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Tianjin, China; Ministry of Education, Breast Cancer Innovation Team of the Ministry of Education, Tianjin, China; Key Laboratory of Cancer Prevention and Therapy, State Key Laboratory of Breast Cancer Research, Tianjin, China
| | - Hui Sun
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; National Clinical Research Center of Cancer, Tianjin, China; Tianjin's Clinical Research Center for Cancer, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Tianjin, China; Ministry of Education, Breast Cancer Innovation Team of the Ministry of Education, Tianjin, China; Key Laboratory of Cancer Prevention and Therapy, State Key Laboratory of Breast Cancer Research, Tianjin, China
| | - Chen Niu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; National Clinical Research Center of Cancer, Tianjin, China; Tianjin's Clinical Research Center for Cancer, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Tianjin, China; Ministry of Education, Breast Cancer Innovation Team of the Ministry of Education, Tianjin, China; Key Laboratory of Cancer Prevention and Therapy, State Key Laboratory of Breast Cancer Research, Tianjin, China
| | - Li Fu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; National Clinical Research Center of Cancer, Tianjin, China; Tianjin's Clinical Research Center for Cancer, Tianjin, China; Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Tianjin, China; Ministry of Education, Breast Cancer Innovation Team of the Ministry of Education, Tianjin, China; Key Laboratory of Cancer Prevention and Therapy, State Key Laboratory of Breast Cancer Research, Tianjin, China.
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5
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Immunoglobulin superfamily 9 (IGSF9) is trans-activated by p53, inhibits breast cancer metastasis via FAK. Oncogene 2022; 41:4658-4672. [PMID: 36088502 PMCID: PMC9546770 DOI: 10.1038/s41388-022-02459-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 08/23/2022] [Accepted: 08/26/2022] [Indexed: 11/08/2022]
Abstract
AbstractMetastasis of breast cancer represents the major reason for its poor prognosis, leading to high mortality. In breast cancer, a tumor suppressor gene TP53 is commonly mutated. TP53 mutation leads to an altered expression of various genes, an event that is associated with aggressive tumor and is a strong independent marker for survival. In this study, we identified a novel p53 target gene, immunoglobulin superfamily 9 (IGSF9). IGSF9 is generally down-regulated in breast cancer tissues. Loss of IGSF9 is associated with frequent metastasis and poor prognosis of breast cancer patients. Wild-type p53, but not R175H mutant, trans-activates the transcription of IGSF9 via binding to its promoter (−137 to −131 bp), inhibits epithelial-mesenchymal transition (EMT), consequently the inhibition of breast cancer cells migration and invasion. IGSF9 interacts with focal adhesion kinase (FAK) and inhibits FAK/AKT signaling activity. PND1186, FAK inhibitor, inhibits breast cancer metastasis induced by IGSF9 knockdown in vitro and in vivo. Taken together, IGSF9 is trans-activated by p53 and inhibits breast cancer metastasis by modulating FAK/AKT signaling pathway. IGSF9 could serve as a prognostic marker and potential therapeutic target for breast cancer.
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Dorgans K, Guo D, Kurima K, Wickens J, Uusisaari MY. Designing AAV Vectors for Monitoring the Subtle Calcium Fluctuations of Inferior Olive Network in vivo. Front Cell Neurosci 2022; 16:825056. [PMID: 35573836 PMCID: PMC9093741 DOI: 10.3389/fncel.2022.825056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 03/21/2022] [Indexed: 11/13/2022] Open
Abstract
Adeno-associated viral (AAV) vectors, used as vehicles for gene transfer into the brain, are a versatile and powerful tool of modern neuroscience that allow identifying specific neuronal populations, monitoring and modulating their activity. For consistent and reproducible results, the AAV vectors must be engineered so that they reliably and accurately target cell populations. Furthermore, transgene expression must be adjusted to sufficient and safe levels compatible with the physiology of studied cells. We undertook the effort to identify and validate an AAV vector that could be utilized for researching the inferior olivary (IO) nucleus, a structure gating critical timing-related signals to the cerebellum. By means of systematic construct generation and quantitative expression profiling, we succeeded in creating a viral tool for specific and strong transfection of the IO neurons without adverse effects on their physiology. The potential of these tools is demonstrated by expressing the calcium sensor GCaMP6s in adult mouse IO neurons. We could monitor subtle calcium fluctuations underlying two signatures of intrinsic IO activity: the subthreshold oscillations (STOs) and the variable-duration action potential waveforms both in-vitro and in-vivo. Further, we show that the expression levels of GCaMP6s allowing such recordings are compatible with the delicate calcium-based dynamics of IO neurons, inviting future work into the network dynamics of the olivo-cerebellar system in behaving animals.
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Affiliation(s)
- Kevin Dorgans
- Neuronal Rhythms in Movement Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Da Guo
- Neuronal Rhythms in Movement Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Kiyoto Kurima
- Neurobiology Research Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Jeff Wickens
- Neurobiology Research Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Marylka Yoe Uusisaari
- Neuronal Rhythms in Movement Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
- *Correspondence: Marylka Yoe Uusisaari
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Shi Q, Shao K, Jia H, Cao B, Li W, Dong S, Liu J, Wu K, Liu M, Liu F, Zhou H, Lv J, Gu F, Li L, Zhu S, Li S, Li G, Fu L. Genomic alterations and evolution of cell clusters in metastatic invasive micropapillary carcinoma of the breast. Nat Commun 2022; 13:111. [PMID: 35013309 PMCID: PMC8748639 DOI: 10.1038/s41467-021-27794-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 10/25/2021] [Indexed: 11/09/2022] Open
Abstract
Invasive micropapillary carcinoma (IMPC) has very high rates of lymphovascular invasion and lymph node metastasis and has been reported in several organs. However, the genomic mechanisms underlying its metastasis are unclear. Here, we perform whole-genome sequencing of tumor cell clusters from primary IMPC and paired axillary lymph node metastases. Cell clusters in multiple lymph node foci arise from a single subclone of the primary tumor. We find evidence that the monoclonal metastatic ancestor in primary IMPC shares high frequency copy-number loss of PRDM16 and IGSF9 and the copy number gain of ALDH2. Immunohistochemistry analysis further shows that low expression of IGSF9 and PRDM16 and high expression of ALDH2 are associated with lymph node metastasis and poor survival of patients with IMPC. We expect these genomic and evolutionary profiles to contribute to the accurate diagnosis of IMPC.
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Affiliation(s)
- Qianqian Shi
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, 300060, Tianjin, China
| | - Kang Shao
- BGI-Shenzhen, 518120, Shenzhen, China.,BGl College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, 450000, Zhengzhou, China
| | - Hongqin Jia
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, 300060, Tianjin, China.,National Clinical Research Center for Cancer, 300060, Tianjin, China
| | - Boyang Cao
- BGI-Shenzhen, 518120, Shenzhen, China.,BGl College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, 450000, Zhengzhou, China
| | - Weidong Li
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, 300060, Tianjin, China.,National Clinical Research Center for Cancer, 300060, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, 300060, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, 300060, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, 300060, Tianjin, China
| | - Shichen Dong
- BGI-Shenzhen, 518120, Shenzhen, China.,BGl College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, 450000, Zhengzhou, China
| | - Jian Liu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, 300060, Tianjin, China.,National Clinical Research Center for Cancer, 300060, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, 300060, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, 300060, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, 300060, Tianjin, China
| | - Kailiang Wu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, 300060, Tianjin, China.,National Clinical Research Center for Cancer, 300060, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, 300060, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, 300060, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, 300060, Tianjin, China
| | - Meng Liu
- BGI-Shenzhen, 518120, Shenzhen, China.,BGl College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, 450000, Zhengzhou, China
| | - Fangfang Liu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, 300060, Tianjin, China.,National Clinical Research Center for Cancer, 300060, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, 300060, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, 300060, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, 300060, Tianjin, China
| | - Hanlin Zhou
- BGI-Shenzhen, 518120, Shenzhen, China.,BGl College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, 450000, Zhengzhou, China
| | - Jianke Lv
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, 300060, Tianjin, China.,National Clinical Research Center for Cancer, 300060, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, 300060, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, 300060, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, 300060, Tianjin, China
| | - Feng Gu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, 300060, Tianjin, China.,National Clinical Research Center for Cancer, 300060, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, 300060, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, 300060, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, 300060, Tianjin, China
| | - Luyuan Li
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, 300071, Tianjin, China
| | - Shida Zhu
- BGI-Shenzhen, 518120, Shenzhen, China.,BGl College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, 450000, Zhengzhou, China
| | - Shuai Li
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, 300060, Tianjin, China. .,National Clinical Research Center for Cancer, 300060, Tianjin, China. .,Key Laboratory of Cancer Prevention and Therapy, 300060, Tianjin, China. .,Tianjin's Clinical Research Center for Cancer, 300060, Tianjin, China. .,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, 300060, Tianjin, China.
| | - Guibo Li
- BGI-Shenzhen, 518120, Shenzhen, China. .,BGl College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, 450000, Zhengzhou, China. .,Shenzhen Key Laboratory of Single-Cell Omics, 518120, Shenzhen, China.
| | - Li Fu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, 300060, Tianjin, China. .,National Clinical Research Center for Cancer, 300060, Tianjin, China. .,Key Laboratory of Cancer Prevention and Therapy, 300060, Tianjin, China. .,Tianjin's Clinical Research Center for Cancer, 300060, Tianjin, China. .,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, 300060, Tianjin, China.
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8
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Ren Q, Rao Y. The exit of axons and glial membrane from the developing Drosophila retina requires integrins. Mol Brain 2022; 15:2. [PMID: 34980203 PMCID: PMC8722191 DOI: 10.1186/s13041-021-00888-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 12/19/2021] [Indexed: 11/11/2022] Open
Abstract
Coordinated development of neurons and glia is essential for the establishment of neuronal circuits during embryonic development. In the developing Drosophila visual system, photoreceptor (R cell) axons and wrapping glial (WG) membrane extend from the eye disc through the optic stalk into the optic lobe. Extensive studies have identified a number of genes that control the establishment of R-cell axonal projection pattern in the optic lobe. The molecular mechanisms directing the exit of R-cell axons and WG membrane from the eye disc, however, remain unknown. In this study, we show that integrins are required in R cells for the extension of R-cell axons and WG membrane from the eye disc into the optic stalk. Knockdown of integrins in R cells but not WG caused the stalling of both R-cell axons and WG membrane in the eye disc. Interfering with the function of Rhea (i.e. the Drosophila ortholog of vertebrate talin and a key player of integrin-mediated adhesion), caused an identical stalling phenotype. These results support a key role for integrins on R-cell axons in directing R-cell axons and WG membrane to exit the eye disc.
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Affiliation(s)
- Qian Ren
- McGill Centre for Research in Neuroscience, McGill University Health Centre, 1650 Cedar Avenue, Montreal, QC, H3G 1A4, Canada.,Integrated Program in Neuroscience, McGill University Health Centre, 1650 Cedar Avenue, Montreal, QC, H3G 1A4, Canada
| | - Yong Rao
- McGill Centre for Research in Neuroscience, McGill University Health Centre, 1650 Cedar Avenue, Montreal, QC, H3G 1A4, Canada. .,Department of Neurology and Neurosurgery, McGill University Health Centre, 1650 Cedar Avenue, Montreal, QC, H3G 1A4, Canada. .,Integrated Program in Neuroscience, McGill University Health Centre, 1650 Cedar Avenue, Montreal, QC, H3G 1A4, Canada. .,Centre for Research in Neuroscience, McGill University Health Centre, Room L7-136, 1650 Cedar Avenue, Montreal, QC, Canada.
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9
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Wang XX, Zhang S, Dong PP, Li YH, Zhang L, Shi SH, Yu ZQ, Chen S. MRCKβ links Dasm1 to actin rearrangements to promote dendrite development. J Biol Chem 2021; 296:100730. [PMID: 33933448 PMCID: PMC8191314 DOI: 10.1016/j.jbc.2021.100730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 04/23/2021] [Accepted: 04/28/2021] [Indexed: 01/12/2023] Open
Abstract
Proper dendrite morphogenesis and synapse formation are essential for neuronal development and function. Dasm1, a member of the immunoglobulin superfamily, is known to promote dendrite outgrowth and excitatory synapse maturation in vitro. However, the in vivo function of Dasm1 in neuronal development and the underlying mechanisms are not well understood. To learn more, Dasm1 knockout mice were constructed and employed to confirm that Dasm1 regulates dendrite arborization and spine formation in vivo. We performed a yeast two-hybrid screen using Dasm1, revealing MRCKβ as a putative partner; additional lines of evidence confirmed this interaction and identified cytoplasmic proline-rich region (823–947 aa) of Dasm1 and MRCKβ self-activated kinase domain (CC1, 410–744 aa) as necessary and sufficient for binding. Using co-immunoprecipitation assay, autophosphorylation assay, and BS3 cross-linking assay, we show that Dasm1 binding triggers a change in MRCKβ’s conformation and subsequent dimerization, resulting in autophosphorylation and activation. Activated MRCKβ in turn phosphorylates a class 2 regulatory myosin light chain, which leads to enhanced actin rearrangement, causing the dendrite outgrowth and spine formation observed before. Removal of Dasm1 in mice leads to behavioral abnormalities. Together, these results reveal a crucial molecular pathway mediating cell surface and intracellular signaling communication to regulate actin dynamics and neuronal development in the mammalian brain.
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Affiliation(s)
- Xiao-Xiao Wang
- NHC Key Laboratory of Glycoconjugate Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China; Department of Gastroenterology and Hepatology, Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Si Zhang
- NHC Key Laboratory of Glycoconjugate Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Ping-Ping Dong
- Department of Gastroenterology and Hepatology, Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; Department of Surgery, Faculty of Medicine, Centre for Cancer Research, The University of Hong Kong, Hong Kong, China
| | - Yao-Hua Li
- NHC Key Laboratory of Glycoconjugate Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Li Zhang
- NHC Key Laboratory of Glycoconjugate Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Song-Hai Shi
- IDG/McGovern Institute for Brain Research, Tsinghua-Peking Center for Life Sciences, Beijing Frontier Research Center of Biological Structure, Beijing Advanced Innovation Center for Structural Biology, School of Life Sciences, Tsinghua University, Beijing, China; Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Zhi-Qiang Yu
- NHC Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China; Eye Department, Eye & ENT Hospital, Fudan University, Shanghai, China.
| | - She Chen
- NHC Key Laboratory of Glycoconjugate Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China.
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10
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Wang Q, Ye J, Fang D, Lv L, Wu W, Shi D, Li Y, Yang L, Bian X, Wu J, Jiang X, Wang K, Wang Q, Hodson MP, Thibaut LM, Ho JWK, Giannoulatou E, Li L. Multi-omic profiling reveals associations between the gut mucosal microbiome, the metabolome, and host DNA methylation associated gene expression in patients with colorectal cancer. BMC Microbiol 2020; 20:83. [PMID: 32321427 PMCID: PMC7178946 DOI: 10.1186/s12866-020-01762-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 03/23/2020] [Indexed: 12/24/2022] Open
Abstract
Background The human gut microbiome plays a critical role in the carcinogenesis of colorectal cancer (CRC). However, a comprehensive analysis of the interaction between the host and microbiome is still lacking. Results We found correlations between the change in abundance of microbial taxa, butyrate-related colonic metabolites, and methylation-associated host gene expression in colonic tumour mucosa tissues compared with the adjacent normal mucosa tissues. The increase of genus Fusobacterium abundance was correlated with a decrease in the level of 4-hydroxybutyric acid (4-HB) and expression of immune-related peptidase inhibitor 16 (PI16), Fc Receptor Like A (FCRLA) and Lymphocyte Specific Protein 1 (LSP1). The decrease in the abundance of another potentially 4-HB-associated genus, Prevotella 2, was also found to be correlated with the down-regulated expression of metallothionein 1 M (MT1M). Additionally, the increase of glutamic acid-related family Halomonadaceae was correlated with the decreased expression of reelin (RELN). The decreased abundance of genus Paeniclostridium and genus Enterococcus were correlated with increased lactic acid level, and were also linked to the expression change of Phospholipase C Beta 1 (PLCB1) and Immunoglobulin Superfamily Member 9 (IGSF9) respectively. Interestingly, 4-HB, glutamic acid and lactic acid are all butyrate precursors, which may modify gene expression by epigenetic regulation such as DNA methylation. Conclusions Our study identified associations between previously reported CRC-related microbial taxa, butyrate-related metabolites and DNA methylation-associated gene expression in tumour and normal colonic mucosa tissues from CRC patients, which uncovered a possible mechanism of the role of microbiome in the carcinogenesis of CRC. In addition, these findings offer insight into potential new biomarkers, therapeutic and/or prevention strategies for CRC.
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Affiliation(s)
- Qing Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China.,Computational Genomics Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia
| | - Jianzhong Ye
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Daiqiong Fang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Longxian Lv
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Wenrui Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Ding Shi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Yating Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Liya Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Xiaoyuan Bian
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Jingjing Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Xianwan Jiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Kaicen Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Qiangqiang Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Mark P Hodson
- Freedman Foundation Metabolomics Facility, Victor Chang Innovation Centre, Victor Chang Cardiac Research Institute, Sydney, Australia.,School of Pharmacy, University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Loïc M Thibaut
- Computational Genomics Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia.,School of Mathematics and Statistics, UNSW Sydney, Sydney, Australia
| | - Joshua W K Ho
- Bioinformatics and Systems Medicine Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia.,School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Eleni Giannoulatou
- Computational Genomics Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia. .,St Vincent's Clinical School, UNSW Sydney, Sydney, Australia.
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China. .,Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China.
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11
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Celarain N, Tomas-Roig J. Changes in Deoxyribonucleic Acid Methylation Contribute to the Pathophysiology of Multiple Sclerosis. Front Genet 2019; 10:1138. [PMID: 31798633 PMCID: PMC6874160 DOI: 10.3389/fgene.2019.01138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 10/21/2019] [Indexed: 12/02/2022] Open
Abstract
Multiple sclerosis (MS) is an autoimmune disease of the central nervous system characterized by loss of coordination, weakness, dysfunctions in bladder capacity, bowel movement, and cognitive impairment. Thus, the disease leads to a significant socioeconomic burden. In the pathophysiology of the disease, both genetic and environmental risk factors are involved. Gene x environment interaction is modulated by epigenetic mechanisms. Epigenetics refers to a sophisticated system that regulates gene expression with no changes in the DNA sequence. The most studied epigenetic mechanism is the DNA methylation. In this review, we summarize the data available from the current literature by grouping sets of differentially methylated genes in distinct biological categories: the immune system including innate and adaptive response, the DNA damage, and the central nervous system.
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Affiliation(s)
- Naiara Celarain
- Girona Neuroimmunology and Multiple Sclerosis Unit (UNIEM), Dr. Josep Trueta University Hospital, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - Jordi Tomas-Roig
- Girona Neuroimmunology and Multiple Sclerosis Unit (UNIEM), Dr. Josep Trueta University Hospital, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
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12
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The Conserved IgSF9 Protein Borderless Regulates Axonal Transport of Presynaptic Components and Color Vision in Drosophila. J Neurosci 2019; 39:6817-6828. [PMID: 31235647 DOI: 10.1523/jneurosci.0075-19.2019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 05/15/2019] [Accepted: 06/20/2019] [Indexed: 11/21/2022] Open
Abstract
Normal brain function requires proper targeting of synaptic-vesicle (SV) and active-zone components for presynaptic assembly and function. Whether and how synaptogenic signals (e.g., adhesion) at axo-dendritic contact sites promote axonal transport of presynaptic components for synapse formation, however, remain unclear. In this study, we show that Borderless (Bdl), a member of the conserved IgSF9-family trans-synaptic cell adhesion molecules, plays a novel and specific role in regulating axonal transport of SV components. Loss of bdl disrupts axonal transport of SV components in photoreceptor R8 axons, but does not affect the transport of mitochondria. Genetic mosaic analysis, transgene rescue and cell-type-specific knockdown indicate that Bdl is required both presynaptically and postsynaptically for delivering SV components in R8 axons. Consistent with a role for Bdl in R8 axons, loss of bdl causes a failure of R8-dependent phototaxis response to green light. bdl interacts genetically with imac encoding for a member of the UNC-104/Imac/KIF1A-family motor proteins, and is required for proper localization of Imac in R8 presynaptic terminals. Our results support a model in which Bdl mediates specific axo-dendritic interactions in a homophilic manner, which upregulates the Imac motor in promoting axonal transport of SV components for R8 presynaptic assembly and function.SIGNIFICANCE STATEMENT Whether and how synaptogenic adhesion at axo-dendritic contact sites regulates axonal transport of presynaptic components remain unknown. Here we show for the first time that a trans-synaptic adhesion molecule mediates specific interactions at axo-dendritic contact sites, which is required for upregulating the UNC-104/Imac/KIF1A motor in promoting axonal transport of synaptic-vesicle components for presynaptic assembly and function.
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13
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Zhu F, Tang X, Xiao S, Wang H, Zhang Y, Shao Y, Tang F, Chen S, Bai X. The role of Bombyx mori Bmtutl-519 protein in the infection of BmN cells by Nosema bombycis. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2019; 92:283-290. [PMID: 30528488 DOI: 10.1016/j.dci.2018.12.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 11/30/2018] [Accepted: 12/05/2018] [Indexed: 06/09/2023]
Abstract
Bmtutl-519 is an isoform of the Bombyx Turtle protein and a member of the immunoglobulin superfamily (IgSF). The relative expression level of Bmtutl-519 was significantly upregulated when BmN cells were infected by Nosema bombycis. The subcellular localization of Bmtutl-519 was studied using an indirect immunoinfluscent assay (IFA), Co-localization assay, Western blotting, and enhanced green fluorescent protein (EGFP) fusion constructs expressed in BmN cells transfected with a Bmtutl-519 expression plasmid. The results indicate that Bmtutl-519 is distributed in both the cytoplasm and the cell membrane of BmN cells. Bmtutl-519 may be involved in the infection process of N. bombycis as a cell surface receptor or regulatory factor. Interaction analysis of Bmtutl-519 with NbSWP26, a spore wall protein of N. bombycis involved in host cell adherence and infection, showed that the C-terminal heparin-binding motif (HBM) of NbSWP26 mediates the interaction between these two proteins. Mutation of the NbSWP26 HBM at K208G, K209G, K210G, and K213G led to a loss of the ability to bind the Bmtutl-519 protein. Spore adherence and infection assays showed that Bmtutl-519 enhances the binding ability of N. bombycis to the host cell surface, but this did not enhance host cell infection by N. bombycis. In contrast, the sustained high expression of Bmtutl-519 in BmN cells inhibited the proliferation of N. bombycis spores.
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Affiliation(s)
- Feng Zhu
- Institute of Sericulture and Apiculture, Yunnan Academy of Agricultural Sciences, Mengzi, 661101, Yunnan, China.
| | - Xudong Tang
- Jiangsu University of Science and Technology, Zhenjiang, 212018, Jiangsu, China; Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, Jiangsu, China
| | - Shengyan Xiao
- Institute of Sericulture and Apiculture, Yunnan Academy of Agricultural Sciences, Mengzi, 661101, Yunnan, China
| | - Hongliang Wang
- Tengzhou No. 1 Middle School of Shangdong Province, Zaozhuang, 277599, Shangdong, China
| | - Yonghong Zhang
- Institute of Sericulture and Apiculture, Yunnan Academy of Agricultural Sciences, Mengzi, 661101, Yunnan, China
| | - Yulan Shao
- Institute of Sericulture and Apiculture, Yunnan Academy of Agricultural Sciences, Mengzi, 661101, Yunnan, China
| | - Fenfen Tang
- Institute of Sericulture and Apiculture, Yunnan Academy of Agricultural Sciences, Mengzi, 661101, Yunnan, China
| | - Shiliang Chen
- Institute of Sericulture and Apiculture, Yunnan Academy of Agricultural Sciences, Mengzi, 661101, Yunnan, China
| | - Xingrong Bai
- Institute of Sericulture and Apiculture, Yunnan Academy of Agricultural Sciences, Mengzi, 661101, Yunnan, China.
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14
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Nie YH, Liu XD, Huang R, Xie DF, Yin WJ, Guan H, Yu ZJ, Zhou PK. Analysis of mRNA Expression Patterns in Peripheral Blood Cells of 3 Patients With Cancer After the First Fraction of 2 Gy Irradiation: An Integrated Case Report and Systematic Review. Dose Response 2019; 17:1559325819833474. [PMID: 30833875 PMCID: PMC6393837 DOI: 10.1177/1559325819833474] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 12/12/2018] [Accepted: 01/02/2019] [Indexed: 11/15/2022] Open
Abstract
Background Radiation therapy induces acute and chronic radiological toxicity, in particular hematological toxicity (HT). This study aimed to explore the mechanistic clue and potential predictors at the messenger RNA (mRNA) level. Materials and Methods Peripheral blood was collected from 3 patients with cervical cancer (CC), nasopharynx cancer (NC), and tongue cancer (TC) after the first 2 Gy fraction of radiotherapy (RT). High-throughput sequencing was used to assess mRNA profiles. Results Eleven genes, such as ALAS2(5-aminolevulinate synthase), SLC4A1(solute carrier family 4 member 1), HBG2(hemoglobin subunit gamma 2), TNFAIP3 (TNF α-induced protein 3), PER1 (period circadian clock 1), CCDC136 (coiled-coil domain containing 136), C9orf84 (chromosome 9 open reading frame 84), IL1B (interleukin 1β), FOSB (FosB protooncogene), NR4A2 (nuclear receptor subfamily 4), PARP15 (polymerase family member 15), had overlapping expression changes in all 3 cancers of which 3 (ALAS2, FOSB, and HBG2) are suggested as potential predictors for the early diagnosis of HT after RT. Conclusions ALAS2, FOSB, and HBG2 may be useful predictors of HT in patients after RT. Eleven overlapping expression mRNAs among 3 cancers might be potential predictors for early diagnosis of radiation toxicity in patients.
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Affiliation(s)
- Yue-Hua Nie
- Department of Tumor Radiotherapy, The First Affiliated Hospital, University of South China, Hengyang, China
| | - Xiao-Dan Liu
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Ruixue Huang
- Department of Occupational and Environmental Health, Central South University, Changsha, China
| | - Da-Fei Xie
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Wen-Jun Yin
- Department of Tumor Radiotherapy, The First Affiliated Hospital, University of South China, Hengyang, China
| | - Hua Guan
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Zi-Jian Yu
- Department of Tumor Radiotherapy, The First Affiliated Hospital, University of South China, Hengyang, China
| | - Ping-Kun Zhou
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China.,Institute for Chemical Carcinogenesis, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China
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15
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IgSF9b regulates anxiety behaviors through effects on centromedial amygdala inhibitory synapses. Nat Commun 2018; 9:5400. [PMID: 30573727 PMCID: PMC6302093 DOI: 10.1038/s41467-018-07762-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 11/21/2018] [Indexed: 02/06/2023] Open
Abstract
Abnormalities in synaptic inhibition play a critical role in psychiatric disorders, and accordingly, it is essential to understand the molecular mechanisms linking components of the inhibitory postsynapse to psychiatrically relevant neural circuits and behaviors. Here we study the role of IgSF9b, an adhesion protein that has been associated with affective disorders, in the amygdala anxiety circuitry. We show that deletion of IgSF9b normalizes anxiety-related behaviors and neural processing in mice lacking the synapse organizer Neuroligin-2 (Nlgn2), which was proposed to complex with IgSF9b. This normalization occurs through differential effects of Nlgn2 and IgSF9b at inhibitory synapses in the basal and centromedial amygdala (CeM), respectively. Moreover, deletion of IgSF9b in the CeM of adult Nlgn2 knockout mice has a prominent anxiolytic effect. Our data place IgSF9b as a key regulator of inhibition in the amygdala and indicate that IgSF9b-expressing synapses in the CeM may represent a target for anxiolytic therapies. IgSF9b is a synaptic adhesion protein that has been linked to psychiatric disorders. Here the authors show that deletion of IgSF9b regulates anxiety-like behaviour in mice by increasing inhibitory synaptic transmission in the centromedial amygdala.
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16
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Bibollet-Bahena O, Okafuji T, Hokamp K, Tear G, Mitchell KJ. A dual-strategy expression screen for candidate connectivity labels in the developing thalamus. PLoS One 2017; 12:e0177977. [PMID: 28558017 PMCID: PMC5448750 DOI: 10.1371/journal.pone.0177977] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 05/05/2017] [Indexed: 12/13/2022] Open
Abstract
The thalamus or “inner chamber” of the brain is divided into ~30 discrete nuclei, with highly specific patterns of afferent and efferent connectivity. To identify genes that may direct these patterns of connectivity, we used two strategies. First, we used a bioinformatics pipeline to survey the predicted proteomes of nematode, fruitfly, mouse and human for extracellular proteins containing any of a list of motifs found in known guidance or connectivity molecules. Second, we performed clustering analyses on the Allen Developing Mouse Brain Atlas data to identify genes encoding surface proteins expressed with temporal profiles similar to known guidance or connectivity molecules. In both cases, we then screened the resultant genes for selective expression patterns in the developing thalamus. These approaches identified 82 candidate connectivity labels in the developing thalamus. These molecules include many members of the Ephrin, Eph-receptor, cadherin, protocadherin, semaphorin, plexin, Odz/teneurin, Neto, cerebellin, calsyntenin and Netrin-G families, as well as diverse members of the immunoglobulin (Ig) and leucine-rich receptor (LRR) superfamilies, receptor tyrosine kinases and phosphatases, a variety of growth factors and receptors, and a large number of miscellaneous membrane-associated or secreted proteins not previously implicated in axonal guidance or neuronal connectivity. The diversity of their expression patterns indicates that thalamic nuclei are highly differentiated from each other, with each one displaying a unique repertoire of these molecules, consistent with a combinatorial logic to the specification of thalamic connectivity.
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Affiliation(s)
| | - Tatsuya Okafuji
- Smurfit Institute of Genetics, Trinity College Dublin, Dublin, Ireland
| | - Karsten Hokamp
- Smurfit Institute of Genetics, Trinity College Dublin, Dublin, Ireland
| | - Guy Tear
- Department of Developmental Neurobiology, New Hunt’s House, Guy’s Campus, King’s College, London, United Kingdom
| | - Kevin J. Mitchell
- Smurfit Institute of Genetics, Trinity College Dublin, Dublin, Ireland
- Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland
- * E-mail:
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17
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Molecular characterization and expression analysis of Turtle protein in silkworm that is associated with Nosema bombycis infection. INFECTION GENETICS AND EVOLUTION 2017; 52:67-74. [PMID: 28465230 DOI: 10.1016/j.meegid.2017.04.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Revised: 03/24/2017] [Accepted: 04/28/2017] [Indexed: 12/19/2022]
Abstract
In this report, we describe the cloning and characterization of a member of the immunoglobulin superfamily (IgSF); i.e., Turtle. The cDNA of Turtle was cloned from the silkworm Bombyx mori using the rapid amplification of cDNA ends (RACE) technique. Three isoforms of Bombyx Turtle were obtained, including Bmtutl-464, Bmtutl-519, and Bmtutl-810. The three isoforms had identical 27-amino acid signal peptides and four extracellular immunoglobulin (Ig) domains (IgI-IgIV). Sequence similarity and phylogenic analysis indicated that Bmtutl-810 belongs to the group of insect Turtle isoforms and shares 76.2% identity with Drosophila Turtle. Quantitative real-time PCR analysis revealed that the Bombyx Turtle isoforms were expressed throughout the entire development period, the highest levels of expression of Bmtutl-464 and Bmtutl-519 were observed at the second instar larvae stage, whereas that of Bmtutl-810 peaked at the embryonic stage. The ubiquitous expression of Bmtutl-464, Bmtutl-519, and Bmtutl-810 were observed in all studied tissues, except for Bmtutl-519 in the silk gland. The expression level of Bmtutl-464 was highest in the ovary, whereas that of Bmtutl-519 and Bmtutl-810 was highest in the hemolymph. Bmtutl-519 was upregulated in BmN cells infected by Nosema bombycis, We speculated that Bombyx Turtle was not only involved in neural development in silkworm, as well as Drosophila Turtle, but was also involved in the regulation of other biological functions. For example, Bmtutl-519 might be involved in N. bombycis infection and may play an important role in the immune response of silkworms to N. bombycis infection.
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18
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Regulation of GABAergic synapse development by postsynaptic membrane proteins. Brain Res Bull 2016; 129:30-42. [PMID: 27453545 DOI: 10.1016/j.brainresbull.2016.07.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 07/06/2016] [Indexed: 02/07/2023]
Abstract
In the adult mammalian brain, GABAergic neurotransmission provides the majority of synaptic inhibition that balances glutamatergic excitatory drive and thereby controls neuronal output. It is generally accepted that synaptogenesis is initiated through highly specific protein-protein interactions mediated by membrane proteins expressed in developing presynaptic terminals and postsynaptic membranes. Accumulating studies have uncovered a number of membrane proteins that regulate different aspects of GABAergic synapse development. In this review, we summarize recent advances in understanding of GABAergic synapse development with a focus on postsynaptic membrane molecules, including receptors, synaptogenic cell adhesion molecules and immunoglobulin superfamily proteins.
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Ko J, Choii G, Um JW. The balancing act of GABAergic synapse organizers. Trends Mol Med 2016; 21:256-68. [PMID: 25824541 DOI: 10.1016/j.molmed.2015.01.004] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 01/25/2015] [Accepted: 01/27/2015] [Indexed: 12/14/2022]
Abstract
GABA (γ-aminobutyric acid) is the main neurotransmitter at inhibitory synapses in the mammalian brain. It is essential for maintaining the excitation and inhibition (E/I) ratio, whose imbalance underlies various brain diseases. Emerging information about inhibitory synapse organizers provides a novel molecular framework for understanding E/I balance at the synapse, circuit, and systems levels. This review highlights recent advances in deciphering these components of the inhibitory synapse and their roles in the development, transmission, and circuit properties of inhibitory synapses. We also discuss how their dysfunction may lead to a variety of brain disorders, suggesting new therapeutic strategies based on balancing the E/I ratio.
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Genetic evidence for the adhesion protein IgSF9/Dasm1 to regulate inhibitory synapse development independent of its intracellular domain. J Neurosci 2014; 34:4187-99. [PMID: 24647940 DOI: 10.1523/jneurosci.3671-13.2014] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Normal brain function requires balanced development of excitatory and inhibitory synapses. An imbalance in synaptic transmission underlies many brain disorders such as epilepsy, schizophrenia, and autism. Compared with excitatory synapses, relatively little is known about the molecular control of inhibitory synapse development. We used a genetic approach in mice to identify the Ig superfamily member IgSF9/Dasm1 as a candidate homophilic synaptic adhesion protein that regulates inhibitory synapse development. IgSF9 is expressed in pyramidal cells and subsets of interneurons in the CA1 region of hippocampus. Electrophysiological recordings of acute hippocampal slices revealed that genetic inactivation of the IgSF9 gene resulted in fewer functional inhibitory synapses; however, the strength of the remaining synapses was unaltered. These physiological abnormalities were correlated with decreased expression of inhibitory synapse markers in IgSF9(-/-) mice, providing anatomical evidence for a reduction in inhibitory synapse numbers, whereas excitatory synapse development was normal. Surprisingly, knock-in mice expressing a mutant isoform of IgSF9 lacking the entire cytoplasmic domain (IgSF9(ΔC/ΔC) mice) had no defects in inhibitory synapse development, providing genetic evidence that IgSF9 regulates synapse development via ectodomain interactions rather than acting itself as a signaling receptor. Further, we found that IgSF9 mediated homotypic binding and cell aggregation, but failed to induce synapse formation, suggesting that IgSF9 acts as a cell adhesion molecule (CAM) to maintain synapses. Juvenile IgSF9(-/-) mice exhibited increased seizure susceptibility indicative of an imbalance in synaptic excitation and inhibition. These results provide genetic evidence for a specific role of IgSF9 in inhibitory synapse development/maintenance, presumably by its CAM-like activity.
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