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Chen G, Zheng Z, Ji Q, He R, Pan Z, Chen Y, Zhou Y, Wei Z, Sun H, Feng L. Tumor innervation in cervical cancer: Prognostic insights from myelin-associated risk signatures. FASEB Bioadv 2025; 7:e70004. [PMID: 40330434 PMCID: PMC12050960 DOI: 10.1096/fba.2024-00190] [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: 10/21/2024] [Revised: 12/15/2024] [Accepted: 02/10/2025] [Indexed: 05/08/2025] Open
Abstract
The reported frequencies of perineural invasion (PNI) in human cervical cancer, ranging from 7.0% to 35.1%, may underestimate the significant role that nerves play in cervical cancer progression. Neurosecretory factors can promote tumor migration and invasion, even in cases classified as "PNI-negative". This study aimed to clarify whether tumor innervation influences tumor progression and cervical cancer patient outcomes. We first evaluated the gene signatures of human myelinating Schwann cells (SCs) using the Inferring Pathway Activity and Suppression (IPAS) scoring system to predict the degree of tumor innervation in 304 cervical cancer patients from The Cancer Genome Atlas (TCGA) database. Subsequently, we constructed a myelin-associated risk prognostic signature using LASSO regression analysis. Finally, we obtained a risk score using a quantitative formula and categorized all samples into high- and low-risk score groups. Our results indicated that tumor innervation in cervical cancer is associated with poor patient survival. Higher levels of innervation were correlated with an impaired immune response and reduced expression of immune checkpoints, including PD-L1. The prognostic model demonstrated excellent consistency between predicted and actual survival outcomes. Overall, tumor innervation plays a crucial role in regulating cervical cancer prognosis. The identified prognostic risk signatures offer a valuable tool for risk stratification and prognostic prediction in clinical practice.
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Affiliation(s)
- Guoqiang Chen
- Department of GynecologyThe People's Hospital of Baoan Shenzhen, The Second Affiliated Hospital of Shenzhen UniversityShenzhenChina
| | - Zhen Zheng
- Department of Obstetrics and GynecologyNational Clinical Research Centre for Obstetric and Gynecologic Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Qingqing Ji
- Department of AnesthesiologyShidong Hospital Affiliated to University of Shanghai for Science and TechnologyShanghaiChina
| | - Ruihua He
- Department of PharmacyShanghai Fourth People's Hospital, School of Medicine, Tongji UniversityShanghaiChina
| | - Zhouyuan Pan
- Department of GynecologyThe People's Hospital of Baoan Shenzhen, The Second Affiliated Hospital of Shenzhen UniversityShenzhenChina
| | - Yunxia Chen
- Department of GynecologyThe People's Hospital of Baoan Shenzhen, The Second Affiliated Hospital of Shenzhen UniversityShenzhenChina
| | - Yuqing Zhou
- Department of GynecologyThe People's Hospital of Baoan Shenzhen, The Second Affiliated Hospital of Shenzhen UniversityShenzhenChina
| | - Zhihong Wei
- Department of GynecologyThe People's Hospital of Baoan Shenzhen, The Second Affiliated Hospital of Shenzhen UniversityShenzhenChina
| | - Hao Sun
- Department of Obstetrics and GynecologyShanghai Changzheng Hospital of Naval Medical UniversityShanghaiChina
| | - Lixia Feng
- Department of GynecologyThe People's Hospital of Baoan Shenzhen, The Second Affiliated Hospital of Shenzhen UniversityShenzhenChina
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Ogami T, Tamura Y, Toss K, Yuki K, Morikawa M, Tsutsumi S, Aburatani H, Miyazawa K, Miyazono K, Koinuma D. MAB21L4 regulates the TGF-β-induced expression of target genes in epidermal keratinocytes. J Biochem 2021; 171:399-410. [PMID: 34908107 PMCID: PMC8969751 DOI: 10.1093/jb/mvab141] [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: 08/12/2021] [Accepted: 12/10/2021] [Indexed: 11/26/2022] Open
Abstract
Smad proteins transduce signals downstream of transforming growth factor-β (TGF-β) and are one of the factors that regulate the expression of genes related to diseases affecting the skin. In the present study, we identified MAB21L4, also known as male abnormal 21 like 4 or C2orf54, as the most up-regulated targets of TGF-β and Smad3 in differentiated human progenitor epidermal keratinocytes using chromatin immunoprecipitation sequencing
(ChIP-seq) and RNA sequencing (RNA-seq). We found that TGF-β induced expression of the barrier protein involucrin (encoded by the IVL gene). Transcriptional activity of the IVL promoter induced by TGF-β was inhibited by MAB21L4 siRNAs. Further analysis revealed that MAB21L4 siRNAs also down-regulated the expression of several target genes of TGF-β. MAB21L4 protein was located mainly in the cytosol, where it was physically bound to Smad3 and a transcriptional corepressor c-Ski. siRNAs for MAB21L4 did not inhibit the binding of Smad3 to their target genomic regions but down-regulated the acetylation of histone H3 lys 27 (H3K27ac), an active histone mark, near the Smad3 binding regions. These findings suggest that TGF-β-induced MAB21L4 up-regulates the gene expression induced by TGF-β, possibly through the inhibition of c-Ski via physical interaction in the cytosol.
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Affiliation(s)
- Tomohiro Ogami
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yusuke Tamura
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kim Toss
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Keiko Yuki
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masato Morikawa
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shuichi Tsutsumi
- Genome Science Division, Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
| | - Hiroyuki Aburatani
- Genome Science Division, Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
| | - Keiji Miyazawa
- Department of Biochemistry, Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi 409-3898, Japan
| | - Kohei Miyazono
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Daizo Koinuma
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
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Zhou Y, Lu LF, Zhang C, Chen DD, Zhou XY, Li ZC, Jiang JY, Li S, Zhang YA. Grass carp cGASL negatively regulates interferon activation through autophagic degradation of MAVS. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 115:103876. [PMID: 32987012 DOI: 10.1016/j.dci.2020.103876] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/22/2020] [Accepted: 09/22/2020] [Indexed: 06/11/2023]
Abstract
In mammals, cyclic GMP-AMP synthase (cGAS) is a crucial cytosolic DNA sensor responsible for activating the interferon (IFN) response. A cGAS-like (cGASL) gene was previously identified from grass carp Ctenopharyngodon idellus, which is evolutionarily closest to cGAS but not a true ortholog of cGAS. Here, we found that grass carp cGASL targets mitochondrial antiviral signaling protein (MAVS) for autophagic degradation to negatively regulate fish IFN response. Firstly, the transcriptional level of cellular cgasl was upregulated by poly I:C stimulation, and overexpression of cGASL significantly decreased poly I:C- and MAVS-induced promoter activities and transcriptional levels of IFN and IFN-stimulated genes (ISGs). In addition, cGASL associated with MAVS and prompted autophagic degradation of MAVS in a dose-dependent manner. Finally, overexpression of cGASL attenuated MAVS-mediated cellular antiviral response. These results collectively indicate that cGASL negatively regulates fish IFN response by triggering autophagic degradation of MAVS.
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Affiliation(s)
- Yu Zhou
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China; University of Chinese Academy of Sciences, Beijing, China
| | - Long-Feng Lu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Can Zhang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China; University of Chinese Academy of Sciences, Beijing, China
| | - Dan-Dan Chen
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Xiao-Yu Zhou
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China; College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | - Zhuo-Cong Li
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jing-Yu Jiang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China; University of Chinese Academy of Sciences, Beijing, China
| | - Shun Li
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.
| | - Yong-An Zhang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan, China.
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Teegala S, Chauhan R, Lei E, Weinstein DC. Tbx2 is required for the suppression of mesendoderm during early Xenopus development. Dev Dyn 2018; 247:903-913. [PMID: 29633424 DOI: 10.1002/dvdy.24633] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 03/14/2018] [Accepted: 03/31/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND T-box family proteins are DNA-binding transcriptional regulators that play crucial roles during germ layer formation in the early vertebrate embryo. Well-characterized members of this family, including the transcriptional activators Brachyury and VegT, are essential for the proper formation of mesoderm and endoderm, respectively. To date, T-box proteins have not been shown to play a role in the promotion of the third primary germ layer, ectoderm. RESULTS Here, we report that the T-box factor Tbx2 is both sufficient and necessary for ectodermal differentiation in the frog Xenopus laevis. Tbx2 is expressed zygotically in the presumptive ectoderm, during blastula and gastrula stages. Ectopic expression of Tbx2 represses mesoderm and endoderm, while loss of Tbx2 leads to inappropriate expression of mesoderm- and endoderm-specific genes in the region fated to give rise to ectoderm. Misexpression of Tbx2 also promotes neural tissue in animal cap explants, suggesting that Tbx2 plays a role in both the establishment of ectodermal fate and its dorsoventral patterning. CONCLUSIONS Our studies demonstrate that Tbx2 functions as a transcriptional repressor during germ layer formation, and suggest that this activity is mediated in part through repression of target genes that are stimulated, in the mesendoderm, by transactivating T-box proteins. Taken together, our results point to a critical role for Tbx2 in limiting the potency of blastula-stage progenitor cells during vertebrate germ layer differentiation. Developmental Dynamics 247:903-913, 2018. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Sushma Teegala
- Department of Biology, The Graduate Center, City University of New York, New York.,Department of Biology, Queens College, City University of New York, Flushing, New York
| | - Riddhi Chauhan
- Department of Biology, Queens College, City University of New York, Flushing, New York
| | - Emily Lei
- Department of Biology, Queens College, City University of New York, Flushing, New York
| | - Daniel C Weinstein
- Department of Biology, Queens College, City University of New York, Flushing, New York
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Manojlovic Z, Earwood R, Kato A, Perez D, Cabrera OA, Didier R, Megraw TL, Stefanovic B, Kato Y. La-related protein 6 controls ciliated cell differentiation. Cilia 2017; 6:4. [PMID: 28344782 PMCID: PMC5364628 DOI: 10.1186/s13630-017-0047-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Accepted: 02/16/2017] [Indexed: 01/07/2023] Open
Abstract
Background La-related protein 6 (LARP6) is an evolutionally conserved RNA-binding protein. Vertebrate LARP6 binds the 5′ stem-loop found in mRNAs encoding type I collagen to regulate their translation, but other target mRNAs and additional functions for LARP6 are unknown. The aim of this study was to elucidate an additional function of LARP6 and to evaluate the importance of its function during development. Methods To uncover the role of LARP6 in development, we utilized Morpholino Oligos to deplete LARP6 protein in Xenopus embryos. Then, embryonic phenotypes and ciliary structures of LAPR6 morphants were examined. To identify the molecular mechanism underlying ciliogenesis regulated by LARP6, we tested the expression level of cilia-related genes, which play important roles in ciliogenesis, by RT-PCR or whole mount in situ hybridization (WISH). Results We knocked down LARP6 in Xenopus embryos and found neural tube closure defects. LARP6 mutant, which compromises the collagen synthesis, could rescue these defects. Neural tube closure defects are coincident with lack of cilia, antenna-like cellular organelles with motility- or sensory-related functions, in the neural tube. The absence of cilia at the epidermis was also observed in LARP6 morphants, and this defect was due to the absence of basal bodies which are formed from centrioles and required for ciliary assembly. In the process of multi-ciliated cell (MCC) differentiation, mcidas, which activates the transcription of genes required for centriole formation during ciliogenesis, could partially restore MCCs in LARP6 morphants. In addition, LARP6 likely controls the expression of mcidas in a Notch-independent manner. Conclusions La-related protein 6 is involved in ciliated cell differentiation during development by controlling the expression of cilia-related genes including mcidas. This LARP6 function involves a mechanism that is distinct from its established role in binding to collagen mRNAs and regulating their translation. Electronic supplementary material The online version of this article (doi:10.1186/s13630-017-0047-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Zarko Manojlovic
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115W. Call Street, Tallahassee, FL 32306-4300 USA.,Department of Translational Genomics, Keck School of Medicine of University of Southern California, Los Angeles, CA 90089-9601 USA
| | - Ryan Earwood
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115W. Call Street, Tallahassee, FL 32306-4300 USA
| | - Akiko Kato
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115W. Call Street, Tallahassee, FL 32306-4300 USA
| | - Diana Perez
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115W. Call Street, Tallahassee, FL 32306-4300 USA
| | - Oscar A Cabrera
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115W. Call Street, Tallahassee, FL 32306-4300 USA
| | - Ruth Didier
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115W. Call Street, Tallahassee, FL 32306-4300 USA
| | - Timothy L Megraw
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115W. Call Street, Tallahassee, FL 32306-4300 USA
| | - Branko Stefanovic
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115W. Call Street, Tallahassee, FL 32306-4300 USA
| | - Yoichi Kato
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115W. Call Street, Tallahassee, FL 32306-4300 USA
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Walentek P, Quigley IK. What we can learn from a tadpole about ciliopathies and airway diseases: Using systems biology in Xenopus to study cilia and mucociliary epithelia. Genesis 2017; 55:10.1002/dvg.23001. [PMID: 28095645 PMCID: PMC5276738 DOI: 10.1002/dvg.23001] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 11/14/2016] [Accepted: 11/16/2016] [Indexed: 12/11/2022]
Abstract
Over the past years, the Xenopus embryo has emerged as an incredibly useful model organism for studying the formation and function of cilia and ciliated epithelia in vivo. This has led to a variety of findings elucidating the molecular mechanisms of ciliated cell specification, basal body biogenesis, cilia assembly, and ciliary motility. These findings also revealed the deep functional conservation of signaling, transcriptional, post-transcriptional, and protein networks employed in the formation and function of vertebrate ciliated cells. Therefore, Xenopus research can contribute crucial insights not only into developmental and cell biology, but also into the molecular mechanisms underlying cilia related diseases (ciliopathies) as well as diseases affecting the ciliated epithelium of the respiratory tract in humans (e.g., chronic lung diseases). Additionally, systems biology approaches including transcriptomics, genomics, and proteomics have been rapidly adapted for use in Xenopus, and broaden the applications for current and future translational biomedical research. This review aims to present the advantages of using Xenopus for cilia research, highlight some of the evolutionarily conserved key concepts and mechanisms of ciliated cell biology that were elucidated using the Xenopus model, and describe the potential for Xenopus research to address unresolved questions regarding the molecular mechanisms of ciliopathies and airway diseases.
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Affiliation(s)
- Peter Walentek
- Department of Molecular and Cell Biology; Genetics, Genomics and Development Division; Developmental and Regenerative Biology Group; University of California, Berkeley, CA 94720, USA
| | - Ian K. Quigley
- Salk Institute for Biological Studies, La Jolla, CA 92037, USA
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de Oliveira Mann CC, Kiefersauer R, Witte G, Hopfner KP. Structural and biochemical characterization of the cell fate determining nucleotidyltransferase fold protein MAB21L1. Sci Rep 2016; 6:27498. [PMID: 27271801 PMCID: PMC4897736 DOI: 10.1038/srep27498] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 05/20/2016] [Indexed: 12/19/2022] Open
Abstract
The exceptionally conserved metazoan MAB21 proteins are implicated in cell fate decisions and share considerable sequence homology with the cyclic GMP-AMP synthase. cGAS is the major innate immune sensor for cytosolic DNA and produces the second messenger 2′-5′, 3′-5′ cyclic GMP-AMP. Little is known about the structure and biochemical function of other proteins of the cGAS-MAB21 subfamily, such as MAB21L1, MAB21L2 and MAB21L3. We have determined the crystal structure of human full-length MAB21L1. Our analysis reveals high structural conservation between MAB21L1 and cGAS but also uncovers important differences. Although monomeric in solution, MAB21L1 forms a highly symmetric double-pentameric oligomer in the crystal, raising the possibility that oligomerization could be a feature of MAB21L1. In the crystal, MAB21L1 is in an inactive conformation requiring a conformational change - similar to cGAS - to develop any nucleotidyltransferase activity. Co-crystallization with NTP identified a putative ligand binding site of MAB21 proteins that corresponds to the DNA binding site of cGAS. Finally, we offer a structure-based explanation for the effects of MAB21L2 mutations in patients with eye malformations. The underlying residues participate in fold-stabilizing interaction networks and mutations destabilize the protein. In summary, we provide a first structural framework for MAB21 proteins.
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Affiliation(s)
- Carina C de Oliveira Mann
- Ludwig-Maximilians-Universität München, Gene Center and Dept. of Biochemistry, Feodor-Lynen-Str. 25, 81377 Munich, Germany
| | - Reiner Kiefersauer
- Proteros Biostructures GmbH, Bunsenstraße 7a, 82152 Martinsried, Germany
| | - Gregor Witte
- Ludwig-Maximilians-Universität München, Gene Center and Dept. of Biochemistry, Feodor-Lynen-Str. 25, 81377 Munich, Germany
| | - Karl-Peter Hopfner
- Ludwig-Maximilians-Universität München, Gene Center and Dept. of Biochemistry, Feodor-Lynen-Str. 25, 81377 Munich, Germany.,Center for Integrated Protein Science (CIPSM), Ludwig-Maximilians Universität München, Feodor-Lynen Str. 25, 81377 Munich, Germany
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