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Zheng H, Wu D, Chen H, Bai J, Fang Y. Downregulation of miR-144 blocked the proliferation and invasion of nerve cells in Hirschsprung disease by regulating Transcription Factor AP 4 (TFAP4). Pediatr Surg Int 2023; 39:251. [PMID: 37610449 DOI: 10.1007/s00383-023-05530-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/26/2023] [Indexed: 08/24/2023]
Abstract
BACKGROUND Hirschsprung's disease (HSCR) is characterized by a dysfunction of enteric neural crest cells (ENCCs) proliferation, migration and premature apoptosis during embryonic development, resulting in aganglionic colon. Our aim is to explore the role of miR-144 with its target gene Transcription Factor AP 4 (TFAP4) in nerve cells in HSCR. METHODS The relative expression levels of miR-144 in HSCR colon samples were detected by quantitative real-time PCR (RT-qPCR). Western blot assays were conducted to investigate the TFAP4 protein expressing level. The interaction of miR-144 and TFAP4 was predicted with bioinformatics analysis and examined with luciferase reporter assays. Overexpression or knockdown of miR-144 and TFAP4 in 293T and SH-SY5Y cell lines was applied. Cell proliferation, migration and invasion were detected by CCK-8 assays, Transwell migration and invasion assays. Cell cycle and apoptosis was examined by flow cytometric analysis. RESULTS Downregulation of miR-144 and upregulation of TFAP4 were shown in HSCR. Luciferase reporter assay indicated that miR-144 reduced luciferase activity in 293T and SH-SY5Y transfected with TFAP4-WT-3UTR luciferase reporter and confirmed TFAP4 was the downstream target gene of miR-144. Data showed that miR-144 promoted the cell proliferation, migration and invasion of 293T and SH-SY5Y, while TFAP4 blocked the cell proliferation, migration and invasion. TFAP4 overexpression reversed the miR-144-mediated cell proliferation, migration and invasion of 293T and SH-SY5Y. CONCLUSIONS Downregulation of miR-144 blocked the cell proliferation and migration of nerve cells via targeting TFAP4 and contributed to the pathogenesis of HSCR. This provides an innovative and candidate target for treatment of HSCR.
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Affiliation(s)
- Huiming Zheng
- Department of Pediatrics Surgery, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, 362000, Fujian, People's Republic of China
| | - Dianming Wu
- Department of Pediatrics Surgery, Fujian Children's Hospital, Fuzhou, 350011, Fujian, People's Republic of China
| | - Hao Chen
- Department of Pediatrics Surgery, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, 362000, Fujian, People's Republic of China
| | - Jianxi Bai
- Department of Pediatrics Surgery, Fujian Children's Hospital, Fuzhou, 350011, Fujian, People's Republic of China
| | - Yifan Fang
- Department of Pediatrics Surgery, Fujian Children's Hospital, Fuzhou, 350011, Fujian, People's Republic of China.
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2
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Potts MA, Mizutani S, Garnham AL, Li Wai Suen CSN, Kueh AJ, Tai L, Pal M, Strasser A, Herold MJ. Deletion of the transcriptional regulator TFAP4 accelerates c-MYC-driven lymphomagenesis. Cell Death Differ 2023:10.1038/s41418-023-01145-w. [PMID: 36894688 DOI: 10.1038/s41418-023-01145-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/22/2023] [Accepted: 02/24/2023] [Indexed: 03/11/2023] Open
Abstract
Many lymphoid malignancies arise from deregulated c-MYC expression in cooperation with additional genetic lesions. While many of these cooperative genetic lesions have been discovered and their functions characterised, DNA sequence data of primary patient samples suggest that many more do exist. However, the nature of their contributions to c-MYC driven lymphomagenesis have not yet been investigated. We identified TFAP4 as a potent suppressor of c-MYC driven lymphoma development in a previous genome-wide CRISPR knockout screen in primary cells in vivo [1]. CRISPR deletion of TFAP4 in Eµ-MYC transgenic haematopoietic stem and progenitor cells (HSPCs) and transplantation of these manipulated HSPCs into lethally irradiated animals significantly accelerated c-MYC-driven lymphoma development. Interestingly, TFAP4 deficient Eµ-MYC lymphomas all arose at the pre-B cell stage of B cell development. This observation prompted us to characterise the transcriptional profile of pre-B cells from pre-leukaemic mice transplanted with Eµ-MYC/Cas9 HSPCs that had been transduced with sgRNAs targeting TFAP4. This analysis revealed that TFAP4 deletion reduced expression of several master regulators of B cell differentiation, such as Spi1, SpiB and Pax5, which are direct target genes of both TFAP4 and MYC. We therefore conclude that loss of TFAP4 leads to a block in differentiation during early B cell development, thereby accelerating c-MYC-driven lymphoma development.
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Affiliation(s)
- Margaret A Potts
- The Walter and Eliza Hall Institute of Medical Research, Blood Cells and Blood Cancer Division, Parkville, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Shinsuke Mizutani
- The Walter and Eliza Hall Institute of Medical Research, Blood Cells and Blood Cancer Division, Parkville, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia.,Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Alexandra L Garnham
- The Walter and Eliza Hall Institute of Medical Research, Blood Cells and Blood Cancer Division, Parkville, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Connie S N Li Wai Suen
- The Walter and Eliza Hall Institute of Medical Research, Blood Cells and Blood Cancer Division, Parkville, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Andrew J Kueh
- The Walter and Eliza Hall Institute of Medical Research, Blood Cells and Blood Cancer Division, Parkville, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Lin Tai
- The Walter and Eliza Hall Institute of Medical Research, Blood Cells and Blood Cancer Division, Parkville, VIC, Australia
| | - Martin Pal
- The Walter and Eliza Hall Institute of Medical Research, Blood Cells and Blood Cancer Division, Parkville, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia.,School of Dentistry and Medical Sciences, Charles Sturt University, Wagga Wagga, NSW, Australia
| | - Andreas Strasser
- The Walter and Eliza Hall Institute of Medical Research, Blood Cells and Blood Cancer Division, Parkville, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Marco J Herold
- The Walter and Eliza Hall Institute of Medical Research, Blood Cells and Blood Cancer Division, Parkville, VIC, Australia. .,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia.
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Hagel KR, Arafeh R, Gang S, Arnoff TE, Larson RC, Doench JG, Mathewson ND, Wucherpfennig KW, Maus MV, Hahn WC. Systematic Interrogation of Tumor Cell Resistance to Chimeric Antigen Receptor T-cell Therapy in Pancreatic Cancer. Cancer Res 2023; 83:613-625. [PMID: 36548402 PMCID: PMC9929516 DOI: 10.1158/0008-5472.can-22-2245] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 10/18/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022]
Abstract
Chimeric antigen receptor (CAR) T-cell therapy can lead to dramatic clinical responses in B-cell malignancies. However, early clinical trials with CAR T-cell therapy in non-B-cell malignancies have been disappointing to date, suggesting that tumor-intrinsic features contribute to resistance. To investigate tumor-intrinsic modes of resistance, we performed genome scale CRISPR-Cas9 screens in mesothelin (MSLN)-expressing pancreatic cancer cells. Co-culture with MSLN-targeting CAR T cells identified both antigen-dependent and antigen-independent modes of resistance. In particular, loss of the majority of the genes involved in the pathway responsible for GPI-anchor biosynthesis and attachment abrogated the ability of CAR T cells to target pancreatic cancer cells, suggesting that disruption of this pathway may permit MSLN CAR T-cell evasion in the clinic. Antigen-independent mediators of CAR T-cell response included members of the death receptor pathway as well as genes that regulate tumor transcriptional responses, including TFAP4 and INTS12. TFAP4-mediated CAR T resistance depended on the NFκB transcription factor p65, indicating that tumor resistance to CAR T-cell therapy likely involves alterations in tumor-intrinsic states. Overall, this study uncovers multiple antigen-dependent and -independent mechanisms of CAR T-cell evasion by pancreatic cancer, paving the way for overcoming resistance in this disease that is notoriously refractory to immunotherapy. SIGNIFICANCE The identification and validation of key determinants of CAR T-cell response in pancreatic cancer provide insights into the landscape of tumor cell intrinsic resistance mechanisms and into approaches to improve therapeutic efficacy.
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Affiliation(s)
- Kimberly R Hagel
- Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts.,Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Rand Arafeh
- Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts.,Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Sydney Gang
- Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Taylor E Arnoff
- Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Rebecca C Larson
- Cellular Immunotherapy Program, Cancer Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - John G Doench
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Nathan D Mathewson
- Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts.,Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Kai W Wucherpfennig
- Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts.,Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Marcela V Maus
- Cellular Immunotherapy Program, Cancer Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - William C Hahn
- Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts.,Broad Institute of MIT and Harvard, Cambridge, Massachusetts.,Brigham and Women's Hospital, Boston, Massachusetts
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4
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Kaller M, Shi W, Hermeking H. c-MYC-Induced AP4 Attenuates DREAM-Mediated Repression by p53. Cancers (Basel) 2023; 15:cancers15041162. [PMID: 36831504 PMCID: PMC9954515 DOI: 10.3390/cancers15041162] [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: 01/03/2023] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND The deregulated expression of the c-MYC oncogene activates p53, which is presumably mediated by ARF/INK4, as well as replication-stress-induced DNA damage. Here, we aimed to determine whether the c-MYC-inducible AP4 transcription factor plays a role in this context using a genetic approach. METHODS We used a CRISPR/Cas9 approach to generate AP4- and/or p53-deficient derivatives of MCF-7 breast cancer cells harboring an ectopic, inducible c-MYC allele. Cell proliferation, senescence, DNA damage, and comprehensive RNA expression profiles were determined after activation of c-MYC. In addition, we analyzed the expression data from primary breast cancer samples. RESULTS Loss of AP4 resulted in elevated levels of both spontaneous and c-MYC-induced DNA damage, senescence, and diminished cell proliferation. Deletion of p53 in AP4-deficient cells reverted senescence and proliferation defects without affecting DNA damage levels. RNA-Seq analyses showed that loss of AP4 enhanced repression of DREAM and E2F target genes after p53 activation by c-MYC. Depletion of p21 or the DREAM complex component LIN37 abrogated this effect. These p53-dependent effects were conserved on the level of clinical and gene expression associations found in primary breast cancer tumors. CONCLUSIONS Our results establish AP4 as a pivotal factor at the crossroads of c-MYC, E2F, and p53 target gene regulation.
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Affiliation(s)
- Markus Kaller
- Experimental and Molecular Pathology, Institute of Pathology, Ludwig-Maximilians-University München, D-80337 Munich, Germany
| | - Wenjing Shi
- Experimental and Molecular Pathology, Institute of Pathology, Ludwig-Maximilians-University München, D-80337 Munich, Germany
| | - Heiko Hermeking
- Experimental and Molecular Pathology, Institute of Pathology, Ludwig-Maximilians-University München, D-80337 Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, D-80336 Munich, Germany
- German Cancer Research Center (DKFZ), D-69120 Heidelberg, Germany
- Correspondence: ; Tel.: +49-89-2180-73685; Fax: +49-89-2180-73697
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5
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Shen Q, Xu Z, Sun G, Wang H, Zhang L. TFAP4 Activates IGF2BP1 and Promotes Progression of Non-Small Cell Lung Cancer by Stabilizing TK1 Expression through m6A Modification. Mol Cancer Res 2022; 20:1763-1775. [PMID: 36074102 DOI: 10.1158/1541-7786.mcr-22-0231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 07/12/2022] [Accepted: 09/02/2022] [Indexed: 01/15/2023]
Abstract
Non-small cell lung cancer (NSCLC) is a well-known global health concern. TFAP4 has been reported to function as an oncogene. This study sought to investigate the molecular mechanism of TFAP4 in NSCLC development. Significantly highly-expressed gene IGF2BP1 was screened on online databases and its downstream gene TK1 was predicted. IGF2BP1 promoter sequence was identified. The binding site of TFAP4 and IGF2BP1 was predicted. The expression correlations among TFAP4, IGF2BP1, and TK1 were confirmed. The correlations between TFAP4, IGF2BP1, TK1, and NSCLC prognosis were predicted. NSCLC and paracancerous tissues were collected. The expressions of TFAP4, IGF2BP1, and TK1 were detected. NSCLC cell proliferation, migration, invasion, and apoptosis were detected. The binding of TFAP4 to the IGF2BP1 promoter was verified. m6A modification of TK1 mRNA was detected. The correlation between IGF2BP1 and TK1 was confirmed. A subcutaneous tumor xenograft model was established to validate the effect of TFAP4 in vivo. IGF2BP1 was highly expressed in NSCLC tissues and cells. IGF2BP1 knockdown repressed NSCLC cell proliferation, migration, and invasion and facilitated apoptosis. Mechanically, TFAP4 transcriptionally activated IGF2BP1. IGF2BP1 stabilized TK1 expression via m6A modification and promoted NSCLC cell proliferation, migration, and invasion. In vivo experiments confirmed that TFAP4 knockdown suppressed tumor growth by downregulating IGF2BP1/TK1. IMPLICATIONS Our findings revealed that TFAP4 activated IGF2BP1 and facilitated NSCLC progression by stabilizing TK1 expression via m6A modification, which offered new insights into the diagnosis and treatment of NSCLC.
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Affiliation(s)
- Qiming Shen
- Department of Thoracic Surgery, The First Hospital of China Medical University, Heping Area, Shenyang, Liaoning, China
| | - Zhe Xu
- Department of Thoracic Surgery, The First Hospital of China Medical University, Heping Area, Shenyang, Liaoning, China
| | - Guanghao Sun
- Department of Thoracic Surgery, The First Hospital of China Medical University, Heping Area, Shenyang, Liaoning, China
| | - Haoyou Wang
- Department of Thoracic Surgery, The First Hospital of China Medical University, Heping Area, Shenyang, Liaoning, China
| | - Lin Zhang
- Department of Thoracic Surgery, The First Hospital of China Medical University, Heping Area, Shenyang, Liaoning, China
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6
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Rehman MSU, Mushtaq M, Hassan FU, Zia-ur Rehman, Mushahid M, Shokrollahi B. Comparative Genomic Characterization of Insulin-Like Growth Factor Binding Proteins in Cattle and Buffalo. BIOMED RESEARCH INTERNATIONAL 2022; 2022:5893825. [PMID: 35924270 PMCID: PMC9343199 DOI: 10.1155/2022/5893825] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/30/2022] [Accepted: 07/06/2022] [Indexed: 11/30/2022]
Abstract
The somatotropic axis consists of genes associated with economic traits like muscle growth and carcass traits in livestock. Insulin-like growth factor binding proteins (IGFBPs) are the major proteins that play a vital role in the somatotropic axis. The present study performed a genome-wide characterization of IGFBP genes in cattle. Genomic sequences of the IGFBP gene family for different mammals (cattle, buffalo, goat, and sheep) were recovered from the NCBI database. Sequence analyses were performed to investigate cattle's genomic variations in the IGFBP gene family. Phylogenetic analysis, gene structure, motif patterns, and conserved domain analysis (CDA) of the IGFBP family revealed the evolutionarily conserved nature of the IGFBP genes in cattle and other studied species. Physicochemical properties of IGFBP proteins in cattle revealed that most of these proteins are unstable, hydrophilic, thermostable, and acidic. Comparative amino acid analysis revealed variations in all protein sequences with single indels in IGFBP3 and IGFBP6. Mutation analysis revealed only one nonsynonymous mutation D212 > E in the IGFBP6 protein of cattle. A total of 245 nuclear hormone receptor (NHRs) sites were detected, including 139 direct repeats (DR), 65 everted repeats (ER), and 41 inverted repeats (IR). Out of 133 transcription factors (TFs), 10 TFs (AHR, AHRARNT, AP4, CMYB, E47, EGR2, GATA, SP1, and SRF) had differential distribution (P value < 0.05) of putative transcriptional binding sites (TFBS) in cattle compared to buffalo. Synteny analysis revealed the conserved nature of genes between cattle and buffalo. Two gene pairs (IGFBP1/IGFBP3 and IGFBP2/IGFBP5) showed tandem duplication events in cattle and buffalo. This study highlights the functional importance of genomic variation in IGFBP genes and necessitates further investigations better to understand the role and mechanisms of IGFBPs in bovines.
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Affiliation(s)
- Muhammad Saif-ur Rehman
- Institute of Animal and Dairy Sciences, University of Agriculture, Faisalabad 38040, Pakistan
| | - Muqeet Mushtaq
- Institute of Animal and Dairy Sciences, University of Agriculture, Faisalabad 38040, Pakistan
| | - Faiz-ul Hassan
- Institute of Animal and Dairy Sciences, University of Agriculture, Faisalabad 38040, Pakistan
| | - Zia-ur Rehman
- University of Agriculture, Faisalabad–Subcampus Toba Tek Singh, Pakistan
| | - Muhammad Mushahid
- Institute of Animal and Dairy Sciences, University of Agriculture, Faisalabad 38040, Pakistan
| | - Borhan Shokrollahi
- Department of Animal Science, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran
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7
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Chou J, Kaller M, Jaeckel S, Rokavec M, Hermeking H. AP4 suppresses DNA damage, chromosomal instability and senescence via inducing MDC1/Mediator of DNA damage Checkpoint 1 and repressing MIR22HG/miR-22-3p. Mol Cancer 2022; 21:120. [PMID: 35624466 PMCID: PMC9137087 DOI: 10.1186/s12943-022-01581-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/22/2022] [Indexed: 12/11/2022] Open
Abstract
Background AP4 (TFAP4) encodes a basic helix-loop-helix leucine zipper (bHLH-LZ) transcription factor and is a direct target gene of the oncogenic transcription factor c-MYC. Here, we set out to determine the relevance of AP4 in human colorectal cancer (CRC) cells. Methods A CRISPR/Cas9 approach was employed to generate AP4-deficient CRC cell lines with inducible expression of c-MYC. Colony formation, β-gal staining, immunofluorescence, comet and homologous recombination (HR) assays and RNA-Seq analysis were used to determine the effects of AP4 inactivation. qPCR and qChIP analyses was performed to validate differentially expressed AP4 targets. Expression data from CRC cohorts was subjected to bioinformatics analyses. Immunohistochemistry was used to evaluate AP4 targets in vivo. Ap4-deficient APCmin/+ mice were analyzed to determine conservation. Immunofluorescence, chromosome and micronuclei enumeration, MTT and colony formation assays were used to determine the effects of AP4 inactivation and target gene regulation on chromosomal instability (CIN) and drug sensitivity. Results Inactivation of AP4 in CRC cell lines resulted in increased spontaneous and c-MYC-induced DNA damage, chromosomal instability (CIN) and cellular senescence. AP4-deficient cells displayed increased expression of the long non-coding RNA MIR22HG, which encodes miR-22-3p and was directly repressed by AP4. Furthermore, Mediator of DNA damage Checkpoint 1 (MDC1), a central component of the DNA damage response and a known target of miR-22-3p, displayed decreased expression in AP4-deficient cells. Accordingly, MDC1 was directly induced by AP4 and indirectly by AP4-mediated repression of miR-22-3p. Adenomas and organoids from Ap4-deficient APCmin/+ mice displayed conservation of these regulations. Inhibition of miR-22-3p or ectopic MDC1 expression reversed the increased senescence, DNA damage, CIN and defective HR observed in AP4-deficient CRC cells. AP4-deficiency also sensitized CRC cells to 5-FU treatment, whereas ectopic AP4 conferred resistance to 5-FU in a miR-22-3p and MDC1-dependent manner. Conclusions In summary, AP4, miR-22-3p and MDC1 form a conserved and coherent, regulatory feed-forward loop to promote DNA repair, which suppresses DNA damage, senescence and CIN, and contributes to 5-FU resistance. These findings explain how elevated AP4 expression contributes to development and chemo-resistance of colorectal cancer after c-MYC activation. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12943-022-01581-1.
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Affiliation(s)
- Jinjiang Chou
- Experimental and Molecular Pathology, Institute of Pathology, Ludwig-Maximilians-University, Thalkirchner Strasse 36, 80337, Munich, Germany
| | - Markus Kaller
- Experimental and Molecular Pathology, Institute of Pathology, Ludwig-Maximilians-University, Thalkirchner Strasse 36, 80337, Munich, Germany
| | - Stephanie Jaeckel
- Experimental and Molecular Pathology, Institute of Pathology, Ludwig-Maximilians-University, Thalkirchner Strasse 36, 80337, Munich, Germany
| | - Matjaz Rokavec
- Experimental and Molecular Pathology, Institute of Pathology, Ludwig-Maximilians-University, Thalkirchner Strasse 36, 80337, Munich, Germany
| | - Heiko Hermeking
- Experimental and Molecular Pathology, Institute of Pathology, Ludwig-Maximilians-University, Thalkirchner Strasse 36, 80337, Munich, Germany. .,German Cancer Consortium (DKTK), Partner site Munich, Munich, Germany. .,German Cancer Research Center (DKFZ), Heidelberg, Germany.
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8
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Nalbandian M, Zhao M, Kato H, Jonouchi T, Nakajima-Koyama M, Yamamoto T, Sakurai H. Single-cell RNA-seq reveals heterogeneity in hiPSC-derived muscle progenitors and E2F family as a key regulator of proliferation. Life Sci Alliance 2022; 5:5/8/e202101312. [PMID: 35459735 PMCID: PMC9034463 DOI: 10.26508/lsa.202101312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 03/28/2022] [Accepted: 03/30/2022] [Indexed: 11/25/2022] Open
Abstract
This study identified and characterized four different populations of muscle progenitor cells derived from human induced pluripotent stem cells. Human pluripotent stem cell-derived muscle progenitor cells (hiPSC-MuPCs) resemble fetal-stage muscle progenitor cells and possess in vivo regeneration capacity. However, the heterogeneity of hiPSC-MuPCs is unknown, which could impact the regenerative potential of these cells. Here, we established an hiPSC-MuPC atlas by performing single-cell RNA sequencing of hiPSC-MuPC cultures. Bioinformatic analysis revealed four cell clusters for hiPSC-MuPCs: myocytes, committed, cycling, and noncycling progenitors. Using FGFR4 as a marker for noncycling progenitors and cycling cells and CD36 as a marker for committed and myocyte cells, we found that FGFR4+ cells possess a higher regenerative capacity than CD36+ cells. We also identified the family of E2F transcription factors are key regulators of hiPSC-MuPC proliferation. Our study provides insights on the purification of hiPSC-MuPCs with higher regenerative potential and increases the understanding of the transcriptional regulation of hiPSC-MuPCs.
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Affiliation(s)
- Minas Nalbandian
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Mingming Zhao
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Hiroki Kato
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan.,Asahi Kasei Co., Ltd., Tokyo, Japan
| | - Tatsuya Jonouchi
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - May Nakajima-Koyama
- Department of Life Science Frontiers, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Takuya Yamamoto
- Department of Life Science Frontiers, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan.,Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto, Japan.,Medical-risk Avoidance Based on iPS Cells Team, RIKEN Center for Advanced Intelligence Project (AIP), Kyoto, Japan
| | - Hidetoshi Sakurai
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
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9
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Yang P, Lian Q, Fu R, Ding GB, Amin S, Li Z, Li Z. Cucurbitacin E Triggers Cellular Senescence in Colon Cancer Cells via Regulating the miR-371b-5p/TFAP4 Signaling Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:2936-2947. [PMID: 35192356 DOI: 10.1021/acs.jafc.1c07952] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The induction of cellular senescence is considered as a potent strategy to suppress cancer progression. Cucurbitacin E (CE) belongs to the triterpenoids and has received substantial attention for its antineoplastic property. However, the function of CE on cellular senescence remained elusive. Herein, we revealed that CE significantly induced cellular senescence in colorectal cancer (CRC) cells. The CE effects on the cellular senescence in CRC cells were confirmed by observing the common features of the senescence, such as the enhanced activity of senescence-associated β-galactosidase, γ-H2AX positive staining, and upregulation of senescence-associated proteins including p53, p27, and p21. Moreover, CE exerted pro-senescent effects in CRC cells via attenuating the transcription factor activating enhancer-binding protein 4 (TFAP4) expression, and the ectopic expression of TFAP4 blocked the CE-induced senescence. Mechanistically, CE treatment caused a robust increase in miR-371b-5p, which markedly repressed TFAP4. In contrast, silencing of miR-371b-5p counteracted the percentages of CE-induced senescent cells from 37.49 ± 2.61 to 7.06 ± 0.91% in HCT-116 cells via derepressing TFAP4 to attenuate the expression of p53, p21, and p16. Altogether, these results demonstrated that dietary CE induces CRC cellular senescence via modulating the miR-371b-5p/TFAP4 axis and presents opportunities for potential therapeutic strategies against CRC.
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Affiliation(s)
- Peng Yang
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China
| | - Qing Lian
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China
| | - Rong Fu
- School of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001, China
| | - Guo-Bin Ding
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China
| | - Sajid Amin
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Zongwei Li
- Houston Methodist Cancer Center, Houston Methodist Research Institute, Houston Methodist Hospital, Houston, Texas 77030, United States
| | - Zhuoyu Li
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
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10
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Meng X, Zhang Z, Chen L, Wang X, Zhang Q, Liu S. Silencing of the Long Non-Coding RNA TTN-AS1 Attenuates the Malignant Progression of Osteosarcoma Cells by Regulating the miR-16-1-3p/TFAP4 Axis. Front Oncol 2021; 11:652835. [PMID: 34141611 PMCID: PMC8204018 DOI: 10.3389/fonc.2021.652835] [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: 01/18/2021] [Accepted: 05/14/2021] [Indexed: 11/27/2022] Open
Abstract
Objectives Osteosarcoma (OS) is a type of bone malignancy. This study attempted to explore the effect of long non-coding RNA TTN-AS1 (TTN-AS1) on OS and to determine its molecular mechanisms. Methods The expression of TTN-AS1, microRNA-16-1-3p (miR-16-1-3p), and transcription factor activating enhancer binding protein 4 (TFAP4) in OS was assessed using qRT-PCR. The OS cell proliferation, migration, and invasion were measured using 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), wound-healing, and transwell assays. N-cadherin and MMP-2 protein level was determined with western blot. Interactions between TTN-AS1 and miR-16-1-3p or TFAP4 and miR-16-1-3p were confirmed using the dual-luciferase reporter assay. Additionally, an OS xenograft tumor model was constructed to assess the effect of TTN-AS1 on tumor growth. Results TTN-AS1 and TFAP4 expression was increased in OS, while miR-16-1-3p expression was decreased. TTN-AS1 silencing restrained OS cell proliferation, migration, invasion, N-cadherin and MMP-2 protein expression, and hindered tumor growth. MiR-16-1-3p overexpression retarded the malignant behavior of OS cells. TTN-AS1 played a carcinostatic role by down-regulating miR-16-1-3p in the OS cells. Moreover, miR-16-1-3p inhibition or TFAP4 elevation weakened the suppressive effect of TTN-AS1 silencing on OS cell tumor progression. Conclusion TTN-AS1 promoted the proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT) of OS cells via mediating the miR-16-1-3p/TFAP4 axis. TTN-AS1 may be a critical target for improving OS.
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Affiliation(s)
- Xianghai Meng
- Trauma Center, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zhenjun Zhang
- Trauma Center, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lin Chen
- Department of Burn Reconstructive Surgery, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xi Wang
- Department of Spine Surgery, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Qingguo Zhang
- Department of Spine Surgery, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shuheng Liu
- Department of Spine Surgery, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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From Channels to Canonical Wnt Signaling: A Pathological Perspective. Int J Mol Sci 2021; 22:ijms22094613. [PMID: 33924772 PMCID: PMC8125460 DOI: 10.3390/ijms22094613] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/25/2021] [Accepted: 04/26/2021] [Indexed: 02/07/2023] Open
Abstract
Wnt signaling is an important pathway mainly active during embryonic development and controlling cell proliferation. This regulatory pathway is aberrantly activated in several human diseases. Ion channels are known modulators of several important cellular functions ranging from the tuning of the membrane potential to modulation of intracellular pathways, in particular the influence of ion channels in Wnt signaling regulation has been widely investigated. This review will discuss the known links between ion channels and canonical Wnt signaling, focusing on their possible roles in human metabolic diseases, neurological disorders, and cancer.
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