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Lin L, Guo H, Batool W, Lin L, Cao J, An Q, Aliyu SR, Bao J, Wang Z, Norvienyeku J. Translocon Subunits of the COP9 Signalosome Complex Are a Central Hub for Regulating Multiple Photoresponsive Processes and Autophagic Flux in Magnaporthe oryzae. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:22015-22034. [PMID: 39319468 DOI: 10.1021/acs.jafc.4c03163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2024]
Abstract
Photodependent processes, including circadian rhythm, autophagy, ubiquitination, neddylation/deneddylation, and metabolite biosynthesis, profoundly influence microbial pathogenesis. Although a photomorphogenesis signalosome (COP9/CSN) has been identified, the mechanism by which this large complex contributes to the pathophysiological processes in filamentous fungi remains unclear. Here, we identified eight CSN complex subunits in the rice blast fungus Magnaporthe oryzae and functionally characterized the translocon subunits containing a nuclear export or localization signal (NES/NLS). Targeted gene replacement of these CSN subunits, including MoCSN3, MoCSN5, MoCSN6, MoCSN7, and MoCSN12, attenuated vegetative growth and conidiation and rendered the deletion strains nonpathogenic. MoCSN7 deletion significantly suppressed arachidonic acid catabolism, and compromised cell wall integrity in M. oryzae. Surprisingly, we also discovered that MoCSN subunits, particularly MoCsn7, are required for the cAMP-dependent regulation of autophagic flux. Therefore, MoCSN significantly contributes to morphological, physiological, and pathogenic differentiation in M. oryzae by fostering cross-talk between multiple pathways.
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Affiliation(s)
- Lili Lin
- State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China
| | - Hengyuan Guo
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, Hainan, China
| | - Wajjiha Batool
- State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China
| | - Lianyu Lin
- State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China
| | - Jiaying Cao
- State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China
| | - Qiuli An
- State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China
| | - Sami Rukaiya Aliyu
- State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China
| | - Jiandong Bao
- State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China
- The Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China
| | - Zonghua Wang
- State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China
- Institute of Oceanography, Minjiang University, Fuzhou 350108, Fujian, China
| | - Justice Norvienyeku
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, Hainan, China
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Yang Y, Han X, Sun L, Shao F, Yin Y, Zhang W. ETS Transcription Factors in Immune Cells and Immune-Related Diseases. Int J Mol Sci 2024; 25:10004. [PMID: 39337492 PMCID: PMC11432452 DOI: 10.3390/ijms251810004] [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: 08/08/2024] [Revised: 09/13/2024] [Accepted: 09/14/2024] [Indexed: 09/30/2024] Open
Abstract
The development, differentiation, and function of immune cells are precisely regulated by transcription factors. The E26 transformation-specific (ETS) transcription factor family is involved in various physiological and pathological processes by regulating cell proliferation, differentiation, and apoptosis. Emerging evidence has suggested that ETS family proteins are intimately involved in the development and function of immune cells. This review summarizes the role of the ETS family in immune cells and immune-related disorders. Seven transcription factors within the ETS family, including PU.1, ETV5, ETV6, ETS1/2, ELK3, and ELF1, play essential roles in the development and function of T cells, B cells, macrophages, neutrophils, and dendritic cells. Furthermore, they are involved in the occurrence and development of immune-related diseases, including tumors, allergies, autoimmune diseases, and arteriosclerosis. This review is conducive to a comprehensive overview of the role of the ETS family in immune cells, and thus is informative for the development of novel therapeutic strategies targeting the ETS family for immune-related diseases.
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Affiliation(s)
- Yaxu Yang
- Department of Physiology and Pathophysiology, State Key Laboratory of Vascular Homeostasis and Remodeling, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (Y.Y.); (L.S.)
| | - Xue Han
- Department of Pharmacology, State Key Laboratory of Vascular Homeostasis and Remodeling, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (X.H.); (F.S.)
| | - Lijun Sun
- Department of Physiology and Pathophysiology, State Key Laboratory of Vascular Homeostasis and Remodeling, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (Y.Y.); (L.S.)
| | - Fangyu Shao
- Department of Pharmacology, State Key Laboratory of Vascular Homeostasis and Remodeling, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (X.H.); (F.S.)
| | - Yue Yin
- Department of Pharmacology, State Key Laboratory of Vascular Homeostasis and Remodeling, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (X.H.); (F.S.)
| | - Weizhen Zhang
- Department of Physiology and Pathophysiology, State Key Laboratory of Vascular Homeostasis and Remodeling, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (Y.Y.); (L.S.)
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3
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Duranti E, Villa C. Insights into Dysregulated Neurological Biomarkers in Cancer. Cancers (Basel) 2024; 16:2680. [PMID: 39123408 PMCID: PMC11312413 DOI: 10.3390/cancers16152680] [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: 06/20/2024] [Revised: 07/23/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
The link between neurodegenerative diseases (NDs) and cancer has generated greater interest in biomedical research, with decades of global studies investigating neurodegenerative biomarkers in cancer to better understand possible connections. Tau, amyloid-β, α-synuclein, SOD1, TDP-43, and other proteins associated with nervous system diseases have also been identified in various types of solid and malignant tumors, suggesting a potential overlap in pathological processes. In this review, we aim to provide an overview of current evidence on the role of these proteins in cancer, specifically examining their effects on cell proliferation, apoptosis, chemoresistance, and tumor progression. Additionally, we discuss the diagnostic and therapeutic implications of this interconnection, emphasizing the importance of further research to completely comprehend the clinical implications of these proteins in tumors. Finally, we explore the challenges and opportunities in targeting these proteins for the development of new targeted anticancer therapies, providing insight into how to integrate knowledge of NDs in oncology research.
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Affiliation(s)
| | - Chiara Villa
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy;
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4
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Park J, Lee J, Hur Y, Kim CJ, Kim HB, Um D, Kim DS, Lee JY, Park S, Park Y, Kim TK, Im SH, Kim SW, Kwok SK, Lee Y. ETV5 promotes lupus pathogenesis and follicular helper T cell differentiation by inducing osteopontin expression. Proc Natl Acad Sci U S A 2024; 121:e2322009121. [PMID: 38843187 PMCID: PMC11181037 DOI: 10.1073/pnas.2322009121] [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: 12/20/2023] [Accepted: 05/07/2024] [Indexed: 06/18/2024] Open
Abstract
Follicular helper T (TFH) cells mediate germinal center reactions to generate high affinity antibodies against specific pathogens, and their excessive production is associated with the pathogenesis of systemic autoimmune diseases such as systemic lupus erythematosus (SLE). ETV5, a member of the ETS transcription factor family, promotes TFH cell differentiation in mice. In this study, we examined the role of ETV5 in the pathogenesis of lupus in mice and humans. T cell-specific deletion of Etv5 alleles ameliorated TFH cell differentiation and autoimmune phenotypes in lupus mouse models. Further, we identified SPP1 as an ETV5 target that promotes TFH cell differentiation in both mice and humans. Notably, extracellular osteopontin (OPN) encoded by SPP1 enhances TFH cell differentiation by activating the CD44-AKT signaling pathway. Furthermore, ETV5 and SPP1 levels were increased in CD4+ T cells from patients with SLE and were positively correlated with disease activity. Taken together, our findings demonstrate that ETV5 is a lupus-promoting transcription factor, and secreted OPN promotes TFH cell differentiation.
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Affiliation(s)
- Jiho Park
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk37673, Republic of Korea
| | - Jongeun Lee
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk37673, Republic of Korea
| | - Yunjung Hur
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk37673, Republic of Korea
| | - Chan-Johng Kim
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk37673, Republic of Korea
| | - Han Bit Kim
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk37673, Republic of Korea
| | - Dahun Um
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk37673, Republic of Korea
| | - Da Som Kim
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul06591, Republic of Korea
| | - June-Yong Lee
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, and Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul03722, Republic of Korea
| | - Sungjun Park
- Department of Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon34114, Republic of Korea
| | - Youngjae Park
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul06591, Republic of Korea
| | - Tae-Kyung Kim
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk37673, Republic of Korea
| | - Sin-Hyeog Im
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk37673, Republic of Korea
- Institute for Convergence Research and Education in Advanced Technology, Yonsei University, Seoul03722, Republic of Korea
| | - Sung Won Kim
- Department of Otolaryngology-Head and Neck Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul06591, Republic of Korea
| | - Seung-Ki Kwok
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul06591, Republic of Korea
| | - Yoontae Lee
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk37673, Republic of Korea
- Institute for Convergence Research and Education in Advanced Technology, Yonsei University, Seoul03722, Republic of Korea
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5
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Zhang K, Yang T, Xia Y, Guo X, Chen W, Wang L, Li J, Wu J, Xiao Z, Zhang X, Jiang W, Xu D, Guo S, Wang Y, Shi Y, Liu D, Li Y, Wang Y, Xing H, Liang T, Niu P, Wang H, Liu Q, Jin S, Qu T, Li H, Zhang Y, Ma W, Wang Y. Molecular Determinants of Neurocognitive Deficits in Glioma: Based on 2021 WHO Classification. J Mol Neurosci 2024; 74:17. [PMID: 38315329 PMCID: PMC10844410 DOI: 10.1007/s12031-023-02173-4] [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: 10/23/2023] [Accepted: 12/05/2023] [Indexed: 02/07/2024]
Abstract
Cognitive impairment is a common feature among patients with diffuse glioma. The objective of the study is to investigate the relationship between preoperative cognitive function and clinical as well as molecular factors, firstly based on the new 2021 World Health Organization's updated classification of central nervous system tumors. A total of 110 diffuse glioma patients enrolled underwent preoperative cognitive assessments using the Mini-Mental State Examination and Montreal Cognitive Assessment. Clinical information was collected from medical records, and gene sequencing was performed to analyze the 18 most influenced genes. The differences in cognitive function between patients with and without glioblastoma were compared under both the 2016 and 2021 WHO classification of tumors of the central nervous system to assess their effect of differentiation on cognition. The study found that age, tumor location, and glioblastoma had significant differences in cognitive function. Several genetic alterations were significantly correlated with cognition. Especially, IDH, CIC, and ATRX are positively correlated with several cognitive domains, while most other genes are negatively correlated. For most focused genes, patients with a low number of genetic alterations tended to have better cognitive function. Our study suggested that, in addition to clinical characteristics such as age, histological type, and tumor location, molecular characteristics play a crucial role in cognitive function. Further research into the mechanisms by which tumors affect brain function is expected to enhance the quality of life for glioma patients. This study highlights the importance of considering both clinical and molecular factors in the management of glioma patients to improve cognitive outcomes.
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Affiliation(s)
- Kun Zhang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Tianrui Yang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yu Xia
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Xiaopeng Guo
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Wenlin Chen
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Lijun Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Junlin Li
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Jiaming Wu
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Zhiyuan Xiao
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Xin Zhang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Wenwen Jiang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Dongrui Xu
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Siying Guo
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- School of Medicine, Tsinghua University, Beijing, 100730, China
| | - Yaning Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yixin Shi
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Delin Liu
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yilin Li
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yuekun Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Hao Xing
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Tingyu Liang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Pei Niu
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Hai Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Qianshu Liu
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Shanmu Jin
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Tian Qu
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Huanzhang Li
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yi Zhang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Wenbin Ma
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yu Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
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Cowell LM, King M, West H, Broadsmith M, Genever P, Pownall ME, Isaacs HV. Regulation of gene expression downstream of a novel Fgf/Erk pathway during Xenopus development. PLoS One 2023; 18:e0286040. [PMID: 37856433 PMCID: PMC10586617 DOI: 10.1371/journal.pone.0286040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 05/08/2023] [Indexed: 10/21/2023] Open
Abstract
Activation of Map kinase/Erk signalling downstream of fibroblast growth factor (Fgf) tyrosine kinase receptors regulates gene expression required for mesoderm induction and patterning of the anteroposterior axis during Xenopus development. We have proposed that a subset of Fgf target genes are activated in the embyo in response to inhibition of a transcriptional repressor. Here we investigate the hypothesis that Cic (Capicua), which was originally identified as a transcriptional repressor negatively regulated by receptor tyrosine kinase/Erk signalling in Drosophila, is involved in regulating Fgf target gene expression in Xenopus. We characterise Xenopus Cic and show that it is widely expressed in the embryo. Fgf overexpression or ectodermal wounding, both of which potently activate Erk, reduce Cic protein levels in embryonic cells. In keeping with our hypothesis, we show that Cic knockdown and Fgf overexpression have overlapping effects on embryo development and gene expression. Transcriptomic analysis identifies a cohort of genes that are up-regulated by Fgf overexpression and Cic knockdown. We investigate two of these genes as putative targets of the proposed Fgf/Erk/Cic axis: fos and rasl11b, which encode a leucine zipper transcription factor and a ras family GTPase, respectively. We identify Cic consensus binding sites in a highly conserved region of intron 1 in the fos gene and Cic sites in the upstream regions of several other Fgf/Cic co-regulated genes, including rasl11b. We show that expression of fos and rasl11b is blocked in the early mesoderm when Fgf and Erk signalling is inhibited. In addition, we show that fos and rasl11b expression is associated with the Fgf independent activation of Erk at the site of ectodermal wounding. Our data support a role for a Fgf/Erk/Cic axis in regulating a subset of Fgf target genes during gastrulation and is suggestive that Erk signalling is involved in regulating Cic target genes at the site of ectodermal wounding.
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Affiliation(s)
- Laura M. Cowell
- Department of Biology, University of York, Heslington, York, United Kingdom
| | - Michael King
- Department of Biology, University of York, Heslington, York, United Kingdom
| | - Helena West
- Department of Biology, University of York, Heslington, York, United Kingdom
| | - Matthew Broadsmith
- Department of Biology, University of York, Heslington, York, United Kingdom
| | - Paul Genever
- Department of Biology, University of York, Heslington, York, United Kingdom
| | | | - Harry V. Isaacs
- Department of Biology, University of York, Heslington, York, United Kingdom
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7
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Takemon Y, LeBlanc VG, Song J, Chan SY, Lee SD, Trinh DL, Ahmad ST, Brothers WR, Corbett RD, Gagliardi A, Moradian A, Cairncross JG, Yip S, Aparicio SAJR, Chan JA, Hughes CS, Morin GB, Gorski SM, Chittaranjan S, Marra MA. Multi-Omic Analysis of CIC's Functional Networks Reveals Novel Interaction Partners and a Potential Role in Mitotic Fidelity. Cancers (Basel) 2023; 15:2805. [PMID: 37345142 PMCID: PMC10216487 DOI: 10.3390/cancers15102805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/11/2023] [Accepted: 05/15/2023] [Indexed: 06/23/2023] Open
Abstract
CIC encodes a transcriptional repressor and MAPK signalling effector that is inactivated by loss-of-function mutations in several cancer types, consistent with a role as a tumour suppressor. Here, we used bioinformatic, genomic, and proteomic approaches to investigate CIC's interaction networks. We observed both previously identified and novel candidate interactions between CIC and SWI/SNF complex members, as well as novel interactions between CIC and cell cycle regulators and RNA processing factors. We found that CIC loss is associated with an increased frequency of mitotic defects in human cell lines and an in vivo mouse model and with dysregulated expression of mitotic regulators. We also observed aberrant splicing in CIC-deficient cell lines, predominantly at 3' and 5' untranslated regions of genes, including genes involved in MAPK signalling, DNA repair, and cell cycle regulation. Our study thus characterises the complexity of CIC's functional network and describes the effect of its loss on cell cycle regulation, mitotic integrity, and transcriptional splicing, thereby expanding our understanding of CIC's potential roles in cancer. In addition, our work exemplifies how multi-omic, network-based analyses can be used to uncover novel insights into the interconnected functions of pleiotropic genes/proteins across cellular contexts.
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Affiliation(s)
- Yuka Takemon
- Genome Science and Technology Graduate Program, University of British Columbia, Vancouver, BC V5Z 4S6, Canada;
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (V.G.L.); (A.M.); (S.M.G.)
| | - Véronique G. LeBlanc
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (V.G.L.); (A.M.); (S.M.G.)
| | - Jungeun Song
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (V.G.L.); (A.M.); (S.M.G.)
| | - Susanna Y. Chan
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (V.G.L.); (A.M.); (S.M.G.)
| | - Stephen Dongsoo Lee
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (V.G.L.); (A.M.); (S.M.G.)
| | - Diane L. Trinh
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (V.G.L.); (A.M.); (S.M.G.)
| | - Shiekh Tanveer Ahmad
- Department of Pathology & Laboratory Medicine, University of Calgary, Calgary, AB T2N 1N4, Canada
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB T2N 4Z6, Canada
- Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - William R. Brothers
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (V.G.L.); (A.M.); (S.M.G.)
| | - Richard D. Corbett
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (V.G.L.); (A.M.); (S.M.G.)
| | - Alessia Gagliardi
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (V.G.L.); (A.M.); (S.M.G.)
| | - Annie Moradian
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (V.G.L.); (A.M.); (S.M.G.)
| | - J. Gregory Cairncross
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB T2N 4Z6, Canada
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Stephen Yip
- Department of Molecular Oncology, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (S.Y.); (S.A.J.R.A.); (C.S.H.)
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
| | - Samuel A. J. R. Aparicio
- Department of Molecular Oncology, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (S.Y.); (S.A.J.R.A.); (C.S.H.)
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
| | - Jennifer A. Chan
- Department of Pathology & Laboratory Medicine, University of Calgary, Calgary, AB T2N 1N4, Canada
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB T2N 4Z6, Canada
- Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Christopher S. Hughes
- Department of Molecular Oncology, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (S.Y.); (S.A.J.R.A.); (C.S.H.)
| | - Gregg B. Morin
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (V.G.L.); (A.M.); (S.M.G.)
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1, Canada
| | - Sharon M. Gorski
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (V.G.L.); (A.M.); (S.M.G.)
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Suganthi Chittaranjan
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (V.G.L.); (A.M.); (S.M.G.)
| | - Marco A. Marra
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (V.G.L.); (A.M.); (S.M.G.)
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1, Canada
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8
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Franke K, Bal G, Li Z, Zuberbier T, Babina M. Clorfl86/RHEX Is a Negative Regulator of SCF/KIT Signaling in Human Skin Mast Cells. Cells 2023; 12:cells12091306. [PMID: 37174705 PMCID: PMC10177086 DOI: 10.3390/cells12091306] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/20/2023] [Accepted: 04/30/2023] [Indexed: 05/15/2023] Open
Abstract
Mast cells (MCs) are key effector cells in allergic and inflammatory diseases, and the SCF/KIT axis regulates most aspects of the cells' biology. Using terminally differentiated skin MCs, we recently reported on proteome-wide phosphorylation changes initiated by KIT dimerization. C1orf186/RHEX was revealed as one of the proteins to become heavily phosphorylated. Its function in MCs is undefined and only some information is available for erythroblasts. Using public databases and our own data, we now report that RHEX exhibits highly restricted expression with a clear dominance in MCs. While expression is most pronounced in mature MCs, RHEX is also abundant in immature/transformed MC cell lines (HMC-1, LAD2), suggesting early expression with further increase during differentiation. Using RHEX-selective RNA interference, we reveal that RHEX unexpectedly acts as a negative regulator of SCF-supported skin MC survival. This finding is substantiated by RHEX's interference with KIT signal transduction, whereby ERK1/2 and p38 both were more strongly activated when RHEX was attenuated. Comparing RHEX and capicua (a recently identified repressor) revealed that each protein preferentially suppresses other signaling modules elicited by KIT. Induction of immediate-early genes strictly requires ERK1/2 in SCF-triggered MCs; we now demonstrate that RHEX diminution translates to this downstream event, and thereby enhances NR4A2, JUNB, and EGR1 induction. Collectively, our study reveals RHEX as a repressor of KIT signaling and function in MCs. As an abundant and selective lineage marker, RHEX may have various roles in the lineage, and the provided framework will enable future work on its involvement in other crucial processes.
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Affiliation(s)
- Kristin Franke
- Institute of Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Gürkan Bal
- Institute of Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Zhuoran Li
- Institute of Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Torsten Zuberbier
- Institute of Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Magda Babina
- Institute of Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, Hindenburgdamm 30, 12203 Berlin, Germany
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9
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Fujita T, Sakai K, Uehara N, Hoshi Y, Mori A, Koyama H, Sato M, Saito K, Osaki Y, Nishio K, Doi K. Genetic variants of cancer‑associated genes analyzed using next‑generation sequencing in small sporadic vestibular schwannomas. Oncol Lett 2023; 25:121. [PMID: 36844630 PMCID: PMC9950330 DOI: 10.3892/ol.2023.13707] [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: 09/22/2022] [Accepted: 01/27/2023] [Indexed: 02/10/2023] Open
Abstract
Vestibular schwannoma (VS) is the most common tumor of the cerebellopontine angle. Despite the increasing diagnosis of sporadic VS over the past decade, the use of traditional microsurgeries to treat VS has decreased. This is likely a result of the adoption of serial imaging as the most common initial evaluation and treatment strategy, especially for small-sized VS. However, the pathobiology of VSs remains unclear, and elucidating the genetic information of tumor tissue may reveal novel insights. The present study performed a comprehensive genomic analysis of all exons in the key tumor suppressor and oncogenes from 10 small (<15 mm) sporadic VS samples. The evaluations identified NF2, SYNE1, IRS2, APC, CIC, SDHC, BRAF, NUMA1, EXT2, HRAS, BCL11B, MAGI1, RNF123, NLRP1, ASXL1, ADAMTS20, TAF1L, XPC, DDB2 and ETS1 as mutated genes. The current study could not draw any new conclusions about the relationship between VS-related hearing loss and gene mutations; however, it did reveal that NF2 was the most frequently mutated gene in small sporadic VS.
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Affiliation(s)
- Takeshi Fujita
- Department of Otolaryngology Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan,Correspondence to: Dr Takeshi Fujita, Department of Otolaryngology Head and Neck Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunokicho, Chuoku, Kobe, Hyogo 650-0017, Japan, E-mail:
| | - Kazuko Sakai
- Department of Genome Biology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka 589-8511, Japan
| | - Natsumi Uehara
- Department of Otolaryngology Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
| | - Yujiro Hoshi
- Department of Otorhinolaryngology, Mitsui Memorial Hospital, Tokyo 101-8643, Japan
| | - Anjin Mori
- Department of Otorhinolaryngology - Head and Neck Surgery, NTT Medical Center Tokyo, Tokyo 141-8625, Japan
| | - Hajime Koyama
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Mitsuo Sato
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka 589-8511, Japan
| | - Kazuya Saito
- Department of Otorhinolaryngology, Izumi City General Hospital, Izumi, Osaka 594-0073, Japan
| | - Yasuhiro Osaki
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka 589-8511, Japan
| | - Kazuto Nishio
- Department of Genome Biology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka 589-8511, Japan
| | - Katsumi Doi
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka 589-8511, Japan
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10
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Babkoff A, Berner-Wygoda Y, Diment J, Kustanovich A, Zick A, Katz D, Grinshpun A. First Female Patient with a Rare CIC-FOXO4-Translocated Sarcoma: A Case Report. Case Rep Oncol 2023; 16:954-962. [PMID: 37900856 PMCID: PMC10601800 DOI: 10.1159/000533519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 08/04/2023] [Indexed: 10/31/2023] Open
Abstract
Small round cell sarcoma is a group of undifferentiated malignancies arising in the bone and soft tissue, notable for Ewing sarcoma. Recently, a new World Health Organization classification has been introduced, including an additional subset of these sarcomas, named CIC-rearranged sarcoma. Within this group, CIC-FOXO4 translocation is an exceedingly rare fusion that has been reported only 4 times in the literature. Herein, we report in-depth the pathological, clinical, and molecular features of a CIC-FOXO4 translocation-driven tumor in a 46-year-old woman.
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Affiliation(s)
- Aryeh Babkoff
- Sharett Institute of Oncology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Yael Berner-Wygoda
- Sharett Institute of Oncology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Judith Diment
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Pathology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Anatoli Kustanovich
- Sharett Institute of Oncology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Aviad Zick
- Sharett Institute of Oncology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Daniela Katz
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
- Oncology Institute, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Albert Grinshpun
- Sharett Institute of Oncology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
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11
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Park J, Park GY, Lee J, Park J, Kim S, Kim E, Park SY, Yoon JH, Lee Y. ERK phosphorylation disrupts the intramolecular interaction of capicua to promote cytoplasmic translocation of capicua and tumor growth. Front Mol Biosci 2022; 9:1030725. [PMID: 36619173 PMCID: PMC9814488 DOI: 10.3389/fmolb.2022.1030725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022] Open
Abstract
Activation of receptor tyrosine kinase signaling inactivates capicua (CIC), a transcriptional repressor that functions as a tumor suppressor, via degradation and/or cytoplasmic translocation. Although CIC is known to be inactivated by phosphorylation, the mechanisms underlying the cytoplasmic translocation of CIC remain poorly understood. Therefore, we aimed to evaluate the roles of extracellular signal-regulated kinase (ERK), p90RSK, and c-SRC in the epidermal growth factor receptor (EGFR) activation-induced cytoplasmic translocation of CIC and further investigated the molecular basis for this process. We found that nuclear ERK induced the cytoplasmic translocation of CIC-S. We identified 12 serine and threonine (S/T) residues within CIC, including S173 and S301 residues that are phosphorylated by p90RSK, which contribute to the cytoplasmic translocation of CIC-S when phosphorylated. The amino-terminal (CIC-S-N) and carboxyl-terminal (CIC-S-C) regions of CIC-S were found to interact with each other to promote their nuclear localization. EGF treatment disrupted the interaction between CIC-S-N and CIC-S-C and induced their cytoplasmic translocation. Alanine substitution for the 12 S/T residues blocked the cytoplasmic translocation of CIC-S and consequently enhanced the tumor suppressor activity of CIC-S. Our study demonstrates that ERK-mediated disruption of intramolecular interaction of CIC is critical for the cytoplasmic translocation of CIC, and suggests that the nuclear retention of CIC may represent a strategy for cancer therapy.
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Affiliation(s)
- Jongmin Park
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk, South Korea
| | - Guk-Yeol Park
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk, South Korea
| | - Jongeun Lee
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk, South Korea
| | - Joonyoung Park
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk, South Korea
| | - Soeun Kim
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk, South Korea
| | - Eunjeong Kim
- Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, South Korea
| | - Seung-Yeol Park
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk, South Korea
| | - Jong Hyuk Yoon
- Neurodegenerative Diseases Research Group, Korea Brain Research Institute, Daegu, South Korea
| | - Yoontae Lee
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk, South Korea,Institute of Convergence Science, Yonsei University, Seoul, South Korea,*Correspondence: Yoontae Lee,
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12
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Franke K, Kirchner M, Mertins P, Zuberbier T, Babina M. The SCF/KIT axis in human mast cells: Capicua acts as potent KIT repressor and ERK predominates PI3K. Allergy 2022; 77:3337-3349. [PMID: 35652819 DOI: 10.1111/all.15396] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 04/28/2022] [Accepted: 05/11/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND The SCF/KIT axis regulates nearly all aspects of mast cell (MC) biology. A comprehensive view of SCF-triggered phosphorylation dynamics is lacking. The relationship between signaling modules and SCF-supported functions likewise remains ill-defined. METHODS Mast cells were isolated from human skin; upon stimulation by SCF, global phosphoproteomic changes were analyzed by LC-MS/MS and selectively validated by immunoblotting. MC survival was inspected by YoPro; BrdU incorporation served to monitor proliferation. Gene expression was quantified by RT-qPCR and cytokines by ELISA. Pharmacological inhibitors were supplemented by ERK1 and/or ERK2 knockdown. CIC translocation and degradation were studied in nuclear and cytoplasmic fractions. CIC's impact on KIT signaling and function was assessed following RNA interference. RESULTS ≈5400 out of ≈10,500 phosphosites experienced regulation by SCF. The MEK/ERK cascade was strongly induced surpassing STAT5 > PI3K/Akt > p38 > JNK. Comparison between MEK/ERK's and PI3K's support of basic programs (apoptosis, proliferation) revealed equipotency between modules. In functional outputs (gene expression, cytokines), ERK was the most influential kinase. OSM and LIF production was identified in skin MCs. Strikingly, SCF triggered massive phosphorylation of a protein not associated with KIT previously: CIC. Phosphorylation was followed by CIC's cytoplasmic appearance and degradation, the latter sensitive to protease but not preoteasome inhibition. Both shuttling and degradation were ERK-dependent. Conversely, CIC-siRNA facilitated KIT signaling, functional outputs, and survival. CONCLUSION The SCF/KIT axis shows notable strength in MCs, and MEK/ERK as most prominent module. An inhibitory circuit exists between KIT and CIC. CIC stabilization in MCs may turn out as a therapeutic option to interfere with allergic and MC-driven diseases.
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Affiliation(s)
- Kristin Franke
- Institute of Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, Berlin, Germany
| | - Marieluise Kirchner
- Core Unit Proteomics, Berlin Institute of Health at Charité- Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine (MDC), Berlin, Germany
| | - Philipp Mertins
- Core Unit Proteomics, Berlin Institute of Health at Charité- Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine (MDC), Berlin, Germany
| | - Torsten Zuberbier
- Institute of Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, Berlin, Germany
| | - Magda Babina
- Institute of Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, Berlin, Germany
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13
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Generation of hematopoietic lineage cell-specific chimeric mice using retrovirus-transduced fetal liver cells. STAR Protoc 2022; 3:101526. [PMID: 35779265 PMCID: PMC9256946 DOI: 10.1016/j.xpro.2022.101526] [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: 04/13/2022] [Revised: 05/18/2022] [Accepted: 06/10/2022] [Indexed: 11/22/2022] Open
Abstract
Hematopoietic lineage cell-specific transgenic or knockout mice provide a valuable platform to identify the role of specific genes in hematopoiesis in vivo. Here, we describe protocols for preparation of retroviruses for overexpression or knockdown of a gene of interest, retroviral transduction of fetal liver cells, and generation of hematopoietic lineage cell-specific chimeric mice by transfer of the retrovirus-transduced fetal liver cells. This protocol is applicable for the study of in vivo functionality of a gene of interest in immune cells. For complete details on the use and execution of this protocol, please refer to Chang et al. (2013), Lee et al. (2016), and Hong et al. (2022). Preparation of retroviruses for overexpression or knockdown of a gene of interest Retroviral transduction of E15.5 fetal liver cells Generation of chimeric mice by transfer of the retroviral transduced fetal liver cells Study of in vivo functionality of a gene of interest in immune cells
Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.
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14
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Sharma S, Hourigan B, Patel Z, Rosenfeld JA, Chan KM, Wangler MF, Yi JS, Lehman A, Horvath G, Cloos PA, Tan Q. Novel CIC variants identified in individuals with neurodevelopmental phenotypes. Hum Mutat 2022; 43:889-899. [PMID: 35165976 DOI: 10.1002/humu.24346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 02/05/2022] [Accepted: 02/08/2022] [Indexed: 11/10/2022]
Abstract
Heterozygous pathogenic variants in CIC, which encodes a transcriptional repressor, have been identified in individuals with neurodevelopmental phenotypes. To date, 11 CIC variants have been associated with the CIC-related neurodevelopmental syndrome. Here, we describe three novel and one previously reported CIC variants in four individuals with neurodevelopmental delay. Notably, we report for the first time a de novo frameshift variant specific to the long isoform of CIC (CIC-L, NM_001304815.1:c.1100dup, p.Pro368AlafsTer16) in an individual with speech delay, intellectual disability, and autism spectrum disorder. Our investigation into the function of CIC-L reveals that partial loss of CIC-L leads to transcriptional derepression of CIC target genes. We also describe a missense variant (NM_015125.3:c.683G>A, p.Arg228Gln) in an individual with a history of speech delay and relapsed pre-B acute lymphoblastic leukemia. Functional studies of this variant suggest a partial loss of CIC transcriptional repressor activity. Our study expands the list of CIC pathogenic variants and contributes to the accumulating evidence that CIC haploinsufficiency or partial loss of function is a pathogenic mechanism causing neurodevelopmental phenotypes.
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Affiliation(s)
- Saloni Sharma
- Department of Cell Biology, University of Alberta, Edmonton, Alberta, Canada
| | - Brenna Hourigan
- Department of Cell Biology, University of Alberta, Edmonton, Alberta, Canada
| | - Zain Patel
- Department of Cell Biology, University of Alberta, Edmonton, Alberta, Canada
| | - Jill A Rosenfeld
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
- Baylor Genetics Laboratories, Houston, Texas, USA
| | - Katie M Chan
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Michael F Wangler
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Joanna S Yi
- Department of Pediatrics, Section of Hematology-Oncology, Texas Children's Cancer and Hematology Centers, Baylor College of Medicine, Houston, Texas, USA
| | | | - Gabriella Horvath
- Division of Biochemical Genetics, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Paul A Cloos
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark
- Centre for Epigenetics, University of Copenhagen, Copenhagen, Denmark
| | - Qiumin Tan
- Department of Cell Biology, University of Alberta, Edmonton, Alberta, Canada
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15
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Carrabotta M, Laginestra MA, Durante G, Mancarella C, Landuzzi L, Parra A, Ruzzi F, Toracchio L, De Feo A, Giusti V, Pasello M, Righi A, Lollini PL, Palmerini E, Donati DM, Manara MC, Scotlandi K. Integrated Molecular Characterization of Patient-Derived Models Reveals Therapeutic Strategies for Treating CIC-DUX4 Sarcoma. Cancer Res 2022; 82:708-720. [PMID: 34903601 PMCID: PMC9359717 DOI: 10.1158/0008-5472.can-21-1222] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 08/18/2021] [Accepted: 11/30/2021] [Indexed: 01/07/2023]
Abstract
Capicua-double homeobox 4 (CIC-DUX4)-rearranged sarcomas (CDS) are extremely rare, highly aggressive primary sarcomas that represent a major therapeutic challenge. Patients are treated according to Ewing sarcoma protocols, but CDS-specific therapies are strongly needed. In this study, RNA sequencing was performed on patient samples to identify a selective signature that differentiates CDS from Ewing sarcoma and other fusion-driven sarcomas. This signature was used to validate the representativeness of newly generated CDS experimental models-patient-derived xenografts (PDX) and PDX-derived cell lines-and to identify specific therapeutic vulnerabilities. Annotation analysis of differentially expressed genes and molecular gene validation highlighted an HMGA2/IGF2BP/IGF2/IGF1R/AKT/mTOR axis that characterizes CDS and renders the tumors particularly sensitive to combined treatments with trabectedin and PI3K/mTOR inhibitors. Trabectedin inhibited IGF2BP/IGF2/IGF1R activity, but dual inhibition of the PI3K and mTOR pathways was required to completely dampen downstream signaling mediators. Proof-of-principle efficacy for the combination of the dual AKT/mTOR inhibitor NVP-BEZ235 (dactolisib) with trabectedin was obtained in vitro and in vivo using CDS PDX-derived cell lines, demonstrating a strong inhibition of local tumor growth and multiorgan metastasis. Overall, the development of representative experimental models (PDXs and PDX-derived cell lines) has helped to identify the unique sensitivity of the CDS to AKT/mTOR inhibitors and trabectedin, revealing a mechanism-based therapeutic strategy to fight this lethal cancer. SIGNIFICANCE This study identifies altered HMGA2/IGF2BP/IGF2 signaling in CIC-DUX4 sarcomas and provides proof of principle for combination therapy with trabectedin and AKT/mTOR dual inhibitors to specifically combat the disease.
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Affiliation(s)
- Marianna Carrabotta
- Experimental Oncology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | | | - Giorgio Durante
- Experimental Oncology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Caterina Mancarella
- Experimental Oncology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Lorena Landuzzi
- Experimental Oncology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Alessandro Parra
- Experimental Oncology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Francesca Ruzzi
- Laboratory of Immunology and Biology of Metastasis, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Lisa Toracchio
- Experimental Oncology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Alessandra De Feo
- Experimental Oncology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Veronica Giusti
- Experimental Oncology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Michela Pasello
- Experimental Oncology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Alberto Righi
- Department of Pathology, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Pier-Luigi Lollini
- Laboratory of Immunology and Biology of Metastasis, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Emanuela Palmerini
- Osteoncology, Bone and Soft Tissue Sarcoma and Novel Therapy Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Davide Maria Donati
- Third Orthopaedic Clinic and Traumatology, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
- Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | | | - Katia Scotlandi
- Experimental Oncology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
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16
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Hong H, Lee J, Park GY, Kim S, Park J, Park JS, Song Y, Lee S, Kim TJ, Lee YJ, Roh TY, Kwok SK, Kim SW, Tan Q, Lee Y. Postnatal regulation of B-1a cell development and survival by the CIC-PER2-BHLHE41 axis. Cell Rep 2022; 38:110386. [PMID: 35172136 DOI: 10.1016/j.celrep.2022.110386] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/23/2021] [Accepted: 01/24/2022] [Indexed: 02/07/2023] Open
Abstract
B-1 cell development mainly occurs via fetal and neonatal hematopoiesis and is suppressed in adult bone marrow hematopoiesis. However, little is known about the factors inhibiting B-1 cell development at the adult stage. We report that capicua (CIC) suppresses postnatal B-1a cell development and survival. CIC levels are high in B-1a cells and gradually increase in transitional B-1a (TrB-1a) cells with age. B-cell-specific Cic-null mice exhibit expansion of the B-1a cell population and a gradual increase in TrB-1a cell frequency with age but attenuated B-2 cell development. CIC deficiency enhances B cell receptor (BCR) signaling in transitional B cells and B-1a cell viability. Mechanistically, CIC-deficiency-mediated Per2 derepression upregulates Bhlhe41 levels by inhibiting CRY-mediated transcriptional repression for Bhlhe41, consequently promoting B-1a cell formation in Cic-null mice. Taken together, CIC is a key transcription factor that limits the B-1a cell population at the adult stage and balances B-1 versus B-2 cell formation.
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Affiliation(s)
- Hyebeen Hong
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Jongeun Lee
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Guk-Yeol Park
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Soeun Kim
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Jiho Park
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Jong Seok Park
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Youngkwon Song
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Sujin Lee
- Department of Immunology, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea
| | - Tae Jin Kim
- Department of Immunology, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea
| | - You Jeong Lee
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Tae-Young Roh
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Seung-Ki Kwok
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Sung Won Kim
- Department of Otolaryngology-Head and Neck Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Qiumin Tan
- Department of Cell Biology, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | - Yoontae Lee
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea.
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17
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Kim S, Park GY, Park JS, Park J, Hong H, Lee Y. Regulation of positive and negative selection and TCR signaling during thymic T cell development by capicua. eLife 2021; 10:71769. [PMID: 34895467 PMCID: PMC8700290 DOI: 10.7554/elife.71769] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 12/10/2021] [Indexed: 12/27/2022] Open
Abstract
Central tolerance is achieved through positive and negative selection of thymocytes mediated by T cell receptor (TCR) signaling strength. Thus, dysregulation of the thymic selection process often leads to autoimmunity. Here, we show that Capicua (CIC), a transcriptional repressor that suppresses autoimmunity, controls the thymic selection process. Loss of CIC prior to T-cell lineage commitment impairs both positive and negative selection of thymocytes. CIC deficiency attenuated TCR signaling in CD4+CD8+ double-positive (DP) cells, as evidenced by a decrease in CD5 and phospho-ERK levels and calcium flux. We identified Spry4, Dusp4, Dusp6, and Spred1 as CIC target genes that could inhibit TCR signaling in DP cells. Furthermore, impaired positive selection and TCR signaling were partially rescued in Cic and Spry4 double mutant mice. Our findings indicate that CIC is a transcription factor required for thymic T cell development and suggests that CIC acts at multiple stages of T cell development and differentiation to prevent autoimmunity.
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Affiliation(s)
- Soeun Kim
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Guk-Yeol Park
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Jong Seok Park
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Jiho Park
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Hyebeen Hong
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Yoontae Lee
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea.,Institute of Convergence Science, Yonsei University, Seoul, Republic of Korea
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18
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Mocciaro E, Runfola V, Ghezzi P, Pannese M, Gabellini D. DUX4 Role in Normal Physiology and in FSHD Muscular Dystrophy. Cells 2021; 10:3322. [PMID: 34943834 PMCID: PMC8699294 DOI: 10.3390/cells10123322] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/10/2021] [Accepted: 11/23/2021] [Indexed: 12/12/2022] Open
Abstract
In the last decade, the sequence-specific transcription factor double homeobox 4 (DUX4) has gone from being an obscure entity to being a key factor in important physiological and pathological processes. We now know that expression of DUX4 is highly regulated and restricted to the early steps of embryonic development, where DUX4 is involved in transcriptional activation of the zygotic genome. While DUX4 is epigenetically silenced in most somatic tissues of healthy humans, its aberrant reactivation is associated with several diseases, including cancer, viral infection and facioscapulohumeral muscular dystrophy (FSHD). DUX4 is also translocated, giving rise to chimeric oncogenic proteins at the basis of sarcoma and leukemia forms. Hence, understanding how DUX4 is regulated and performs its activity could provide relevant information, not only to further our knowledge of human embryonic development regulation, but also to develop therapeutic approaches for the diseases associated with DUX4. Here, we summarize current knowledge on the cellular and molecular processes regulated by DUX4 with a special emphasis on FSHD muscular dystrophy.
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Affiliation(s)
| | | | | | | | - Davide Gabellini
- Gene Expression and Muscular Dystrophy Unit, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, 20132 Milano, Italy; (E.M.); (V.R.); (P.G.); (M.P.)
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19
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Patel AL, Zhang L, Keenan SE, Rushlow CA, Fradin C, Shvartsman SY. Capicua is a fast-acting transcriptional brake. Curr Biol 2021; 31:3639-3647.e5. [PMID: 34166605 DOI: 10.1016/j.cub.2021.05.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/18/2021] [Accepted: 05/27/2021] [Indexed: 10/21/2022]
Abstract
Even though transcriptional repressors are studied with ever-increasing molecular resolution, the temporal aspects of gene repression remain poorly understood. Here, we address the dynamics of transcriptional repression by Capicua (Cic), which is essential for normal development and is commonly mutated in human cancers and neurodegenerative diseases.1,2 We report the speed limit for Cic-dependent gene repression based on live imaging and optogenetic perturbations in the early Drosophila embryo, where Cic was originally discovered.3 Our measurements of Cic concentration and intranuclear mobility, along with real-time monitoring of the activity of Cic target genes, reveal remarkably fast transcriptional repression within minutes of removing an optogenetic de-repressive signal. In parallel, quantitative analyses of transcriptional bursting of Cic target genes support a repression mechanism providing a fast-acting brake on burst generation. This work sets quantitative constraints on potential mechanisms for gene regulation by Cic.
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Affiliation(s)
- Aleena L Patel
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08540, USA; Department of Molecular Biology, Princeton University, Princeton, NJ 08540, USA; Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08540, USA
| | - Lili Zhang
- Department of Physics and Astronomy, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Shannon E Keenan
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08540, USA; Department of Molecular Biology, Princeton University, Princeton, NJ 08540, USA; Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08540, USA
| | | | - Cécile Fradin
- Department of Physics and Astronomy, McMaster University, Hamilton, ON L8S 4K1, Canada; Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8S 4K1, Canada.
| | - Stanislav Y Shvartsman
- Department of Molecular Biology, Princeton University, Princeton, NJ 08540, USA; Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08540, USA; Center for Computational Biology, Flatiron Institute, New York, NY 10010, USA.
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20
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Li K, Shao S, Ji T, Liu M, Wang L, Pang Y, Chen M, Xu S, Zhang K, Wang Q, Zhuang Z, Wei L, Zhang Y, Chen Y, Wang Y, Zhang J, Chen K, Lian H, Zhong C. Capicua Regulates Dendritic Morphogenesis Through Ets in Hippocampal Neurons in vitro. Front Neuroanat 2021; 15:669310. [PMID: 34385910 PMCID: PMC8353115 DOI: 10.3389/fnana.2021.669310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/28/2021] [Indexed: 11/25/2022] Open
Abstract
Capicua (Cic), a transcriptional repressor frequently mutated in brain cancer oligodendroglioma, is highly expressed in adult neurons. However, its function in the dendritic growth of neurons in the hippocampus remains poorly understood. Here, we confirmed that Cic was expressed in hippocampal neurons during the main period of dendritogenesis, suggesting that Cic has a function in dendrite growth. Loss-of-function and gain-of function assays indicated that Cic plays a central role in the inhibition of dendritic morphogenesis and dendritic spines in vitro. Further studies showed that overexpression of Cic reduced the expression of Ets in HT22 cells, while in vitro knockdown of Cic in hippocampal neurons significantly elevated the expression of Ets. These results suggest that Cic may negatively control dendrite growth through Ets, which was confirmed by ShRNA knockdown of either Etv4 or Etv5 abolishing the phenotype of Cic knockdown in cultured neurons. Taken together, our results suggest that Cic inhibits dendritic morphogenesis and the growth of dendritic spines through Ets.
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Affiliation(s)
- Keqin Li
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shuai Shao
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Tongjie Ji
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Min Liu
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lufeng Wang
- Department of Neurology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ying Pang
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Mu Chen
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Siyi Xu
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Kuiming Zhang
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Qi Wang
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhongwei Zhuang
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Liang Wei
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yanfei Zhang
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yanlin Chen
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yang Wang
- Department of Emergency, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing Zhang
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Kui Chen
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hao Lian
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chunlong Zhong
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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21
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Hourigan B, Balay SD, Yee G, Sharma S, Tan Q. Capicua regulates the development of adult-born neurons in the hippocampus. Sci Rep 2021; 11:11725. [PMID: 34083623 PMCID: PMC8175746 DOI: 10.1038/s41598-021-91168-5] [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: 06/24/2020] [Accepted: 05/20/2021] [Indexed: 11/12/2022] Open
Abstract
New neurons continuously arise from neural progenitor cells in the dentate gyrus of the adult hippocampus to support ongoing learning and memory formation. To generate functional adult-born neurons, neural progenitor cells proliferate to expand the precursor cell pool and differentiate into neurons. Newly generated cells then undergo postmitotic maturation to migrate to their final destination and develop elaborate dendritic branching, which allows them to receive input signals. Little is known about factors that regulate neuronal differentiation, migration, and dendrite maturation during adult hippocampal neurogenesis. Here, we show that the transcriptional repressor protein capicua (CIC) exhibits dynamic expression in the adult dentate gyrus. Conditional deletion of Cic from the mouse dentate gyrus compromises the adult neural progenitor cell pool without altering their proliferative potential. We further demonstrate that the loss of Cic impedes neuronal lineage development and disrupts dendritic arborization and migration of adult-born neurons. Our study uncovers a previously unrecognized role of CIC in neurogenesis of the adult dentate gyrus.
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Affiliation(s)
- Brenna Hourigan
- Department of Cell Biology, University of Alberta, Edmonton, T6J 2H7, Canada
| | - Spencer D Balay
- Department of Cell Biology, University of Alberta, Edmonton, T6J 2H7, Canada.,Research Institute of Molecular Pathology, Vienna Biocenter, Campus-Vienna-Biocenter 1, 1030, Vienna, Austria
| | - Graydon Yee
- Department of Cell Biology, University of Alberta, Edmonton, T6J 2H7, Canada
| | - Saloni Sharma
- Department of Cell Biology, University of Alberta, Edmonton, T6J 2H7, Canada
| | - Qiumin Tan
- Department of Cell Biology, University of Alberta, Edmonton, T6J 2H7, Canada.
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22
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Park GY, Lee GW, Kim S, Hong H, Park JS, Cho JH, Lee Y. Deletion Timing of Cic Alleles during Hematopoiesis Determines the Degree of Peripheral CD4 + T Cell Activation and Proliferation. Immune Netw 2020; 20:e43. [PMID: 33163251 PMCID: PMC7609164 DOI: 10.4110/in.2020.20.e43] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/05/2020] [Accepted: 10/08/2020] [Indexed: 12/01/2022] Open
Abstract
Capicua (CIC) is a transcriptional repressor that regulates several developmental processes. CIC deficiency results in lymphoproliferative autoimmunity accompanied by expansion of CD44hiCD62Llo effector/memory and follicular Th cell populations. Deletion of Cic alleles in hematopoietic stem cells (Vav1-Cre-mediated knockout of Cic) causes more severe autoimmunity than that caused by the knockout of Cic in CD4+CD8+ double positive thymocytes (Cd4-Cre-mediated knockout of Cic). In this study, we compared splenic CD4+ T cell activation and proliferation between whole immune cell-specific Cic-null (Cicf/f;Vav1-Cre) and T cell-specific Cic-null (Cicf/f;Cd4-Cre) mice. Hyperactivation and hyperproliferation of CD4+ T cells were more apparent in Cicf/f;Vav1-Cre mice than in Cicf/f;Cd4-Cre mice. Cicf/f;Vav1-Cre CD4+ T cells more rapidly proliferated and secreted larger amounts of IL-2 upon TCR stimulation than did Cicf/f;Cd4-Cre CD4+ T cells, while the TCR stimulation-induced activation of the TCR signaling cascade and calcium flux were comparable between them. Mixed wild-type and Cicf/f;Vav1-Cre bone marrow chimeras also exhibited more apparent hyperactivation and hyperproliferation of Cic-deficient CD4+ T cells than did mixed wild-type and Cicf/f;Cd4-Cre bone marrow chimeras. Taken together, our data demonstrate that CIC deficiency at the beginning of T cell development endows peripheral CD4+ T cells with enhanced T cell activation and proliferative capability.
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Affiliation(s)
- Guk-Yeol Park
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Gil-Woo Lee
- Division of Integrative Bioscience and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
- Medical Research Center for Combinatorial Tumor Immunotherapy, Immunotherapy Innovation Center, Department of Microbiology and Immunology, Chonnam National University Medical School, Hwasun Hospital, Hwasun 58128, Korea
| | - Soeun Kim
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Hyebeen Hong
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Jong Seok Park
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Jae-Ho Cho
- Medical Research Center for Combinatorial Tumor Immunotherapy, Immunotherapy Innovation Center, Department of Microbiology and Immunology, Chonnam National University Medical School, Hwasun Hospital, Hwasun 58128, Korea
| | - Yoontae Lee
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
- Division of Integrative Bioscience and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
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23
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Capicua in Human Cancer. Trends Cancer 2020; 7:77-86. [PMID: 32978089 DOI: 10.1016/j.trecan.2020.08.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/27/2020] [Accepted: 08/28/2020] [Indexed: 12/11/2022]
Abstract
Capicua (CIC) is a highly conserved transcriptional repressor that is differentially regulated through mitogen-activated protein kinase (MAPK) signaling or genetic alteration across human cancer. CIC contributes to tumor progression and metastasis through direct transcriptional control of effector target genes. Recent findings indicate that CIC dysregulation is mechanistically linked and restricted to specific cancer subtypes, yet convergence on key downstream transcriptional nodes are critical for CIC-regulated oncogenesis across these cancers. In this review, we focus on how differential regulation of CIC through functional and genetic mechanisms contributes to subtype-specific cancer phenotypes and we propose new therapeutic strategies to effectively target CIC-altered cancers.
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