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Kar D, Ganguly I, Singh S, Bhatia AK, Dixit SP. Genome-wide runs of homozygosity signatures in diverse Indian goat breeds. 3 Biotech 2024; 14:81. [PMID: 38375512 PMCID: PMC10874352 DOI: 10.1007/s13205-024-03921-y] [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: 08/22/2023] [Accepted: 01/05/2024] [Indexed: 02/21/2024] Open
Abstract
The present study analyzed ROH and consensus ROH regions in 102 animals of eleven diverse Indian goat (Capra hircus) breeds using whole genome sequencing. A total of 51,705 ROH and 21,271 consensus regions were identified. The mean number of ROH per animal was highest in the meat breed, Jharkhand Black (2693) and lowest in the pashmina breed, Changthangi (60). The average length of ROH (ALROH) was maximum in Kanniadu (974.11 Kb) and minimum in Tellicherry (146.98 Kb). Long ROH is typically associated with more recent inbreeding, whereas short ROH is connected to more ancient inbreeding. The overall ROH-based genomic inbreeding (FROH) was highest for Jharkhand Black (0.602) followed by Kanniadu (0.120) and Sangamneri (0.108) among all breeds. FROH of Jharkhand Black was higher than Kanniadu up to 5 Mb ROH length category. However, in > 20 Mb ROH length category, Kanniadu (0.98) exhibited significantly higher FROH than Jharkhand Black (0.46). This implies that Kanniadu had higher levels of recent inbreeding than Jharkhand Black. Despite this, due to the presence of both recent and ancient inbreeding, Jharkhand Black demonstrated higher overall FROH compared to Kanniadu. ROH patterns revealed dual purpose (meat and dairy) and pashmina breeds as less consanguineous while recent inbreeding was apparent in meat breeds. Analysis of ROH consensus regions identified selection sweeps in key genes governing intramuscular fat deposition, meat tenderisation, lean meat production and carcass weight (CDK4, ALOX15, CASP9, PRDM16, DVL1) in meat breeds; milk fat percentage and mammary gland development (POLD1, NOTCH2, ARHGAP35) in dual purpose (meat and dairy) breeds; while cold adaptation and hair follicle development (APOBEC1, DNAJC3, F2RL1, FGF9) in pashmina breed. MAPK, RAS, BMP and Wnt signaling pathways associated with hair follicle morphogenesis in Changthangi were also identified. PCA analysis based on ROH consensus regions revealed that meat breeds are more diverse than other goat breeds/populations. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-024-03921-y.
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Affiliation(s)
- Dibyasha Kar
- Division of Animal Genetics, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana 132001 India
- Division of Animal Genetics and Breeding, ICAR-National Dairy Research Institute, Karnal, Haryana 132001 India
| | - Indrajit Ganguly
- Division of Animal Genetics, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana 132001 India
| | - Sanjeev Singh
- Division of Animal Genetics, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana 132001 India
| | - Avnish Kumar Bhatia
- Division of Animal Genetics, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana 132001 India
| | - S. P. Dixit
- Division of Animal Genetics, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana 132001 India
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Tage H, Yamaguchi K, Nakagawa S, Kasuga S, Takane K, Furukawa Y, Ikenoue T. Visinin-like 1, a novel target gene of the Wnt/β-catenin signaling pathway, is involved in apoptosis resistance in colorectal cancer. Cancer Med 2023. [PMID: 37096864 DOI: 10.1002/cam4.5970] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 03/14/2023] [Accepted: 04/07/2023] [Indexed: 04/26/2023] Open
Abstract
BACKGROUND Abnormal activation of Wnt/β-catenin signaling is associated with various aspects of cancer development. This study explored the roles of novel target genes of the Wnt/β-catenin signaling pathway in cancer cells. METHODS Using the haploid chronic myelogenous leukemia cell line HAP1, RNA sequencing (RNA-seq) was performed to identify genes whose expression was increased by APC disruption and reversed by β-catenin knockdown (KD). The regulatory mechanism and function of one of the candidate genes was investigated in colorectal cancer (CRC) cells. RESULTS In total, 64 candidate genes whose expression was regulated by Wnt/β-catenin signaling were identified. Of these candidate genes, the expression levels of six were reduced by β-catenin KD in HCT116 CRC cells in our previous microarray. One of these genes was Visinin-like 1 ( VSNL1 ), which belongs to the neuronal calcium-sensor gene family. The expression of VSNL1 was regulated by the β-catenin/TCF7L2 complex via two TCF7L2-binding elements in intron 1. VSNL1 KDinduced apoptosis in VSNL1-positive CRC cells. Additionally, forced expression of wild-type VSNL1, but not a myristoylation, Ca2+ -binding, or dimerization-defective mutant, suppressed the apoptosis induced by camptothecin and doxorubicin in VSNL1-negative CRC cells. CONCLUSION Our findings suggest that VSNL1 , a novel target gene of the Wnt/β-catenin signaling pathway, is associated with apoptosis resistance in CRC cells.
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Affiliation(s)
- Hiroki Tage
- Division of Clinical Genome Research, Advanced Clinical Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Kiyoshi Yamaguchi
- Division of Clinical Genome Research, Advanced Clinical Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Saya Nakagawa
- Division of Clinical Genome Research, Advanced Clinical Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - So Kasuga
- Division of Clinical Genome Research, Advanced Clinical Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Kiyoko Takane
- Division of Clinical Genome Research, Advanced Clinical Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Yoichi Furukawa
- Division of Clinical Genome Research, Advanced Clinical Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Tsuneo Ikenoue
- Division of Clinical Genome Research, Advanced Clinical Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
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3
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Zhu W, Tan L, Ma T, Yin Z, Gao J. Long noncoding RNA SNHG8 promotes chemoresistance in gastric cancer via binding with hnRNPA1 and stabilizing TROY expression. Dig Liver Dis 2022; 54:1573-1582. [PMID: 35354542 DOI: 10.1016/j.dld.2022.02.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 12/30/2022]
Abstract
AIMS To determine SNHG8's function and potential mechanisms in gastric cancer (GC) chemoresistance. METHODS We assessed SNHG8 expression in GC cell lines, GC/CDDP cell lines (cell lines treated with cisplatin), and 42 GC tissues and SNHG8 levels in the lncRNA microarray analysis of AGS/CDDP and AGS cell lines. We also examined GC cell viability in vivo and in vitro and its apoptosis level with Flow cytometry assays. SNHG8 was localized in subcells using fluorescence in situ hybridization (FISH) and cell fraction assays, hnRNPA1's link to SNHG8 was determined utilizing RNA immunoprecipitation (RIP) and FISH assays, gene expression profiles were assessed employing RNA transcriptome sequencing, and hnRNPA1's relationship with TROY was ascertained with the RIP assay. RESULTS SNHG8 increased significantly in GC cell lines and GC tissues. However, a decrease in its expression promoted sensitivity to chemotherapy and inhibited DNA damage repair in vitro and in vivo. SNHG8 appeared to regulate TROY expression via linking with hnRNPA1. Reducing TROY levels considerably stimulated GC cell chemosensitivity, whereas heightening them partially rescued the rate of chemoresistance caused by downregulating SNHG8. CONCLUSION In summary, the "SNHG8/hnRNPA1-TROY" axis is crucial to GC chemoresistance.
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Affiliation(s)
- Wenzhong Zhu
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lulu Tan
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Tiantian Ma
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zhijie Yin
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jinbo Gao
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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4
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Wu L, Yu Y, Xu L, Wang X, Zhou J, Wang Y. TROY Modulates Cancer Stem-Like Cell Properties and Gefitinib Resistance Through EMT Signaling in Non–Small Cell Lung Cancer. Front Genet 2022; 13:881875. [PMID: 35646083 PMCID: PMC9136171 DOI: 10.3389/fgene.2022.881875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 03/23/2022] [Indexed: 11/13/2022] Open
Abstract
Targeted therapy has made breakthrough progress in the treatment of advanced non–small cell lung cancer (NSCLC) in the last 20 years. Despite that, acquired resistance of epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI) is an urgent clinical problem. Our study established an acquired gefitinib-resistant cell line, which exhibited epithelial–mesenchymal transition (EMT) and stem cell–like properties. Transcriptional sequencing and bioinformatics analysis revealed that TROY was significantly increased in gefitinib-resistant cells. Gene set enrichment analysis (GSEA) showed EMT was the core enriched hallmark in the resistant cells. TROY siRNA interference could overcome the gefitinib resistance with the downregulated expression of EMT and CSC markers. In addition, immunohistochemistry indicated that TROY was overexpressed in tumor samples from patients who acquired resistance to first-generation EGFR-TKI without T790M mutation and the expression of TROY was associated with poor prognosis in LUAD. Here, we provided the potential role of TROY in the resistance of targeted therapy and a new strategy to overcome the acquired resistance to EGFR-TKI in NSCLC.
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Affiliation(s)
- Linying Wu
- Department of Respiratory Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yuman Yu
- Department of Geriatrics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Liming Xu
- Department of Pathology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaoling Wang
- Department of Pathology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jianying Zhou
- Department of Respiratory Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Jianying Zhou, ; Yuehong Wang,
| | - Yuehong Wang
- Department of Respiratory Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Jianying Zhou, ; Yuehong Wang,
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Zhang Y, Jing Z, Cao X, Wei Q, He W, Zhang N, Liu Y, Yuan Q, Zhuang Z, Dong Y, Hong Z, Li J, Li P, Zhang L, Wang H, Li W. SOCS1, the feedback regulator of STAT1/3, inhibits the osteogenic differentiation of rat bone marrow mesenchymal stem cells. Gene 2022; 821:146190. [PMID: 35124149 DOI: 10.1016/j.gene.2022.146190] [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: 05/31/2021] [Revised: 11/25/2021] [Accepted: 12/06/2021] [Indexed: 11/30/2022]
Abstract
Our study showed that Signal transducer and activator of transcription (STAT)1 and STAT3 phosphorylation was firstly upregulated in the early stage of osteogenic differentiation (OD), and quickly eliminated in hours. Following with phosphorylation of STAT1/3, its downstream feedback regulator Suppressor of cytokine signaling 1 (SOCS1) protein also underwent a quick elevation. Further activation and deactivation of STAT1/3, by administrated with Colivelin and Nifuroxazide in Bone mesenchymal stem cells (BMSCs), increased and decreased SOCS1 expression, inhibited and promoted OD of BMSCs, respectively, as evidenced by Alizarin staining, alkaline phosphatase (ALP) activity, and determination of Run-related transcription factor 2 (RUNX2), Osteocalcin (OCN), ALP, and Bone sialoprotein (BSP). In addition, administration of Colivelin and Nifuroxazide caused and blocked inflammation and apoptosis of BMSCs. To further elucidate the role of STAT1/3-SOCS1 regulatory loop on OD of BMSCs, we overexpressed or silenced SOCS1 in BMSCs during OD. WB data showed that overexpression of SOCS1 repressed STAT1/3 phosphorylation, and knockdown of SOCS1 increased the phosphorylated STAT1/3. Further mechanism study showed that OD of BMSCs was elevated or reduced by SOCS1 overexpression or knockdown, respectively. The findings presenting indicated that the STAT1/3-SOCS1 axis may be exploited as an innovative strategy to enhance osteogenesis in regenerative medicine.
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Affiliation(s)
- Ying Zhang
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital (Orthopedics Hospital of Henan Province), Luoyang, Henan 471002, China; Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China.
| | - Zhenhao Jing
- Henan University of Chinese Medicine, Zhengzhou, Henan 450046, China.
| | - Xiangyang Cao
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital (Orthopedics Hospital of Henan Province), Luoyang, Henan 471002, China.
| | - Qiushi Wei
- Institute of Orthopaedics of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, China; The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, China.
| | - Wei He
- Institute of Orthopaedics of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, China; The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, China.
| | - Ning Zhang
- Hunan University of Chinese Medicine, Zhengzhou, Henan 410208, China.
| | - Youwen Liu
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital (Orthopedics Hospital of Henan Province), Luoyang, Henan 471002, China.
| | - Qiang Yuan
- Henan University of Chinese Medicine, Zhengzhou, Henan 450046, China.
| | - Zhikun Zhuang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China.
| | - Yipping Dong
- Henan University of Chinese Medicine, Zhengzhou, Henan 450046, China.
| | - Zhinan Hong
- Institute of Orthopaedics of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, China; The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, China.
| | - Jitian Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital (Orthopedics Hospital of Henan Province), Luoyang, Henan 471002, China.
| | - Peifeng Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital (Orthopedics Hospital of Henan Province), Luoyang, Henan 471002, China.
| | - Leilei Zhang
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital (Orthopedics Hospital of Henan Province), Luoyang, Henan 471002, China.
| | - Haibin Wang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China.
| | - Wuyin Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital (Orthopedics Hospital of Henan Province), Luoyang, Henan 471002, China.
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Ma F, Arai S, Wang K, Calagua C, Yuan AR, Poluben L, Gu Z, Russo JW, Einstein DJ, Ye H, He MX, Liu Y, Van Allen E, Sowalsky AG, Bhasin MK, Yuan X, Balk SP. Autocrine Canonical Wnt Signaling Primes Noncanonical Signaling through ROR1 in Metastatic Castration-Resistant Prostate Cancer. Cancer Res 2022; 82:1518-1533. [PMID: 35131873 PMCID: PMC9018564 DOI: 10.1158/0008-5472.can-21-1807] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 11/22/2021] [Accepted: 02/02/2022] [Indexed: 11/16/2022]
Abstract
Wnt signaling driven by genomic alterations in genes including APC and CTNNB, which encodes β-catenin, have been implicated in prostate cancer development and progression to metastatic castration-resistant prostate cancer (mCRPC). However, nongenomic drivers and downstream effectors of Wnt signaling in prostate cancer and the therapeutic potential of targeting this pathway in prostate cancer have not been fully established. Here we analyzed Wnt/β-catenin signaling in prostate cancer and identified effectors distinct from those found in other tissues, including aryl hydrocarbon receptor and RUNX1, which are linked to stem cell maintenance, and ROR1, a noncanonical Wnt5a coreceptor. Wnt/β-catenin signaling-mediated increases in ROR1 enhanced noncanonical responses to Wnt5a. Regarding upstream drivers, APC genomic loss, but not its epigenetic downregulation commonly observed in prostate cancer, was strongly associated with Wnt/β-catenin pathway activation in clinical samples. Tumor cell upregulation of the Wnt transporter Wntless (WLS) was strongly associated with Wnt/β-catenin pathway activity in primary prostate cancer but also associated with both canonical and noncanonical Wnt signaling in mCRPC. IHC confirmed tumor cell WLS expression in primary prostate cancer and mCRPC, and patient-derived prostate cancer xenografts expressing WLS were responsive to treatment with Wnt synthesis inhibitor ETC-1922159. These findings reveal that Wnt/β-catenin signaling in prostate cancer drives stem cell maintenance and invasion and primes for noncanonical Wnt signaling through ROR1. They further show that autocrine Wnt production is a nongenomic driver of canonical and noncanonical Wnt signaling in prostate cancer, which can be targeted with Wnt synthesis inhibitors to suppress tumor growth. SIGNIFICANCE This work provides fundamental insights into Wnt signaling and prostate cancer cell biology and indicates that a subset of prostate cancer driven by autocrine Wnt signaling is sensitive to Wnt synthesis inhibitors.
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Affiliation(s)
- Fen Ma
- Department of Medicine and Cancer Center, Beth Israel Deaconess Medical Center and Harvard Medical School; Boston, MA, 02215, USA
| | - Seiji Arai
- Department of Medicine and Cancer Center, Beth Israel Deaconess Medical Center and Harvard Medical School; Boston, MA, 02215, USA
- Department of Urology, Gunma University Hospital; Maebashi, Gunma, Japan
| | - Keshan Wang
- Department of Medicine and Cancer Center, Beth Israel Deaconess Medical Center and Harvard Medical School; Boston, MA, 02215, USA
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology; Wuhan, Hubei 430022, P.R. China
| | - Carla Calagua
- Department of Medicine and Cancer Center, Beth Israel Deaconess Medical Center and Harvard Medical School; Boston, MA, 02215, USA
| | - Amanda R. Yuan
- Department of Medicine and Cancer Center, Beth Israel Deaconess Medical Center and Harvard Medical School; Boston, MA, 02215, USA
| | - Larysa Poluben
- Department of Medicine and Cancer Center, Beth Israel Deaconess Medical Center and Harvard Medical School; Boston, MA, 02215, USA
| | - Zhongkai Gu
- Department of Medicine and Cancer Center, Beth Israel Deaconess Medical Center and Harvard Medical School; Boston, MA, 02215, USA
| | - Joshua W. Russo
- Department of Medicine and Cancer Center, Beth Israel Deaconess Medical Center and Harvard Medical School; Boston, MA, 02215, USA
| | - David J. Einstein
- Department of Medicine and Cancer Center, Beth Israel Deaconess Medical Center and Harvard Medical School; Boston, MA, 02215, USA
| | - Huihui Ye
- Department of Medicine and Cancer Center, Beth Israel Deaconess Medical Center and Harvard Medical School; Boston, MA, 02215, USA
- Department of Pathology, UCLA David Geffen School of Medicine; Los Angeles, CA 90095
| | - Meng Xiao He
- Harvard Graduate Program in Biophysics, Harvard Medical School; Boston, MA 02115, USA
- Department of Medical Oncology, Dana Farber Cancer Institute; Boston, MA 02115
- Broad Institute of Harvard and MIT; Cambridge, MA 02142, USA
| | - Yu Liu
- Program in System Biology, Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School; Worcester, MA 01605, USA
| | - Eliezer Van Allen
- Department of Medical Oncology, Dana Farber Cancer Institute; Boston, MA 02115
- Broad Institute of Harvard and MIT; Cambridge, MA 02142, USA
| | - Adam G. Sowalsky
- Laboratory of Genitourinary Cancer Pathogenesis, National Cancer Institute, National Institutes of Health; Bethesda, MD 20892, USA
| | - Manoj K. Bhasin
- Department of Medicine and Cancer Center, Beth Israel Deaconess Medical Center and Harvard Medical School; Boston, MA, 02215, USA
- Departments of Pediatrics and Biomedical Informatics, Emory School of Medicine; Atlanta, GA 30322, USA
| | - Xin Yuan
- Department of Medicine and Cancer Center, Beth Israel Deaconess Medical Center and Harvard Medical School; Boston, MA, 02215, USA
| | - Steven P. Balk
- Department of Medicine and Cancer Center, Beth Israel Deaconess Medical Center and Harvard Medical School; Boston, MA, 02215, USA
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Mekchay S, Pothakam N, Norseeda W, Supakankul P, Teltathum T, Liu G, Naraballobh W, Khamlor T, Sringarm K, Krutmuang P. Association of IFNA16 and TNFRSF19 Polymorphisms with Intramuscular Fat Content and Fatty Acid Composition in Pigs. BIOLOGY 2022; 11:109. [PMID: 35053107 PMCID: PMC8773020 DOI: 10.3390/biology11010109] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/18/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
Interferon-alpha-16 (IFNA16) and tumor necrosis factor receptor superfamily member 19 (TNFRSF19) are cytokines that may play a role in adipogenesis and fatness. Single nucleotide polymorphisms (SNPs) of the porcine IFNA16 and TNFRSF19 genes were verified and their association with intramuscular fat (IMF) content and fatty acid (FA) composition were evaluated in commercial crossbred pigs. Two non-synonymous SNPs of the porcine IFNA16 c.413G > A and TNFRSF19 c.860G > C loci were detected in commercial crossbred pigs. The porcine IFNA16 c.413G >A polymorphism was significantly associated with stearic acid, total saturated FAs (SFAs), and the ratio of monounsaturated FAs (MUFAs) to SFAs (p < 0.05). Furthermore, the porcine TNFRSF19 c.860G > C polymorphism was found to be significantly associated with IMF content and arachidic acid levels (p < 0.05). The results revealed that porcine IFNA16 and TNFRSF19 polymorphisms are related to IMF content and/or FA composition and affirmed the importance of these cytokine genes as potential candidate genes for lipid deposition and FA composition in the muscle tissue of pigs.
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Affiliation(s)
- Supamit Mekchay
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (N.P.); (W.N.); (T.K.); (K.S.)
- Center of Excellence on Agricultural Biotechnology: (AG-BIO/MHESI), Bangkok 10900, Thailand
- Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or Animal, Chiang Mai University, Chiang Mai 50200, Thailand
- Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Nanthana Pothakam
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (N.P.); (W.N.); (T.K.); (K.S.)
- Center of Excellence on Agricultural Biotechnology: (AG-BIO/MHESI), Bangkok 10900, Thailand
- Veterinary, Conservation and Research Section, Animal Management Division, Chiang Mai Night Safari, Chiang Mai 50230, Thailand
| | - Worrarak Norseeda
- Department of Agriculture, Faculty of Agricultural Technology, Lampang Rajabhat University, Lampang 52100, Thailand;
| | - Pantaporn Supakankul
- Division of Animal Science, School of Agriculture and Natural Resources, University of Phayao, Phayao 56000, Thailand;
| | - Tawatchai Teltathum
- Mae Hong Son Livestock Research and Breeding Center, Mae Hong Son 58000, Thailand;
| | - Guisheng Liu
- Institute of Animal Science and Veterinary Medicine, Hubei Academy of Agricultural Sciences, Wuhan 430064, China;
- Hubei Key Lab for Animal Embryo Engineering and Molecular Breeding, Wuhan 430064, China
| | - Watcharapong Naraballobh
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (N.P.); (W.N.); (T.K.); (K.S.)
- Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Trisadee Khamlor
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (N.P.); (W.N.); (T.K.); (K.S.)
| | - Korawan Sringarm
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (N.P.); (W.N.); (T.K.); (K.S.)
- Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or Animal, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Patcharin Krutmuang
- Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand;
- Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
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8
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Liu S, Sun J, Yuan S, Yang Y, Gong Y, Wang Y, Guo R, Zhang X, Liu Y, Mi H, Wang M, Liu M, Li R. Treated dentin matrix induces odontogenic differentiation of dental pulp stem cells via regulation of Wnt/β-catenin signaling. Bioact Mater 2022; 7:85-97. [PMID: 34466719 PMCID: PMC8379347 DOI: 10.1016/j.bioactmat.2021.05.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 04/03/2021] [Accepted: 05/14/2021] [Indexed: 12/26/2022] Open
Abstract
Treated dentin matrix (TDM) is an ideal scaffold material containing multiple extracellular matrix factors. The canonical Wnt signaling pathway is necessary for tooth regeneration. Thus, this study investigated whether the TDM can promote the odontogenic differentiation of human dental pulp stem cells (hDPSCs) and determined the potential role of Wnt/β-catenin signaling in this process. Different concentrations of TDM promoted the dental differentiation of the hDPSCs and meanwhile, the expression of GSK3β was decreased. Of note, the expression of the Wnt/β-catenin pathway-related genes changed significantly in the context of TDM induction, as per RNA sequencing (RNA seq) data. In addition, the experiment showed that new dentin was visible in rat mandible cultured with TDM, and the thickness was significantly thicker than that of the control group. In addition, immunohistochemical staining showed lower GSK3β expression in new dentin. Consistently, the GSK3β knockdown hDPSCs performed enhanced odotogenesis compared with the control groups. However, GSK3β overexpressing could decrease odotogenesis of TDM-induced hDPSCs. These results were confirmed in immunodeficient mice and Wistar rats. These suggest that TDM promotes odontogenic differentiation of hDPSCs by directly targeting GSK3β and activating the canonical Wnt/β-catenin signaling pathway and provide a theoretical basis for tooth regeneration engineering.
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Affiliation(s)
- Sirui Liu
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Academy of Medical Sciences at Zhengzhou University, Zhengzhou, China
| | - Jingjing Sun
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shuai Yuan
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanyu Yang
- College of Materials Science and Engineering, Zhengzhou University Zhengzhou, Henan 450001, China
| | - Yuping Gong
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ying Wang
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Runying Guo
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Academy of Medical Sciences at Zhengzhou University, Zhengzhou, China
| | - Xue Zhang
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yiming Liu
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hongyan Mi
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Meiyue Wang
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Mengzhe Liu
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Rui Li
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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9
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Liu X, Li S, Wang L, Zhang W, Wang Y, Gui L, Zan L, Zhao C. The Effect of FATP1 on Adipocyte Differentiation in Qinchuan Beef Cattle. Animals (Basel) 2021; 11:ani11102789. [PMID: 34679811 PMCID: PMC8532991 DOI: 10.3390/ani11102789] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/19/2021] [Accepted: 09/20/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Previous research found that FATP1 plays an important role in the regulation of fatty acid metabolism and lipid accumulation in pig and chicken, but its function has not been explored in bovine adipocyte yet. In this study, we investigated the effect of FATP1 expression on preadipocyte differentiation in Qinchuan cattle using overexpression and interference assays. Our results reveal that FATP1 overexpression promoted preadipocyte differentiation, lipid droplet formation, and the expression of LPL and PPARγ, while FATP1 interference had the opposite effects on adipocyte differentiation and fat deposition. Following FATP1 overexpression and FATP1 interference in adipocytes, RNA-seq analysis identified that SLPI, STC1, SEMA6A, TNFRSF19, SLN, PTGS2, ADCYP1, FADS2, and SCD genes were differentially expressed. Pathway analysis revealed that the PPAR signaling pathway, AMPK signal pathway, and Insulin signaling pathway were enriched with differentially expressed genes. We propose that the FATP1 gene may affect the beef quality by involving adipocyte differentiation and lipid deposition, and may shed new light on the formation mechanisms of adipose tissues. Abstract FATP1 plays an important role in the regulation of fatty acid metabolism and lipid accumulation. In this study, we investigated the patterns of FATP1 expression in various tissues obtained from calf and adult Qinchuan cattle, and in differentiating adipocytes. Next, we investigated the effect of FATP1 expression on preadipocyte differentiation in Qinchuan cattle using overexpression and interference assays. We also identified the differentially expressed genes (DEGs) and pathways associated with FATP1 overexpression/interference. Our results reveal that FATP1 was broadly expressed in heart, kidney, muscle, small intestine, large intestine, and perirenal fat tissues. While FATP1 overexpression promoted preadipocyte differentiation, fat deposition, and the expression of several genes involved in fat metabolism, FATP1 interference had the opposite effects on adipocyte differentiation. Following FATP1 overexpression and FATP1 interference in adipocytes, RNA-seq analysis was performed to identify DEGs related to fat metabolism. The DEGs identified include SLPI, STC1, SEMA6A, TNFRSF19, SLN, PTGS2, ADCYP1, FADS2, and SCD. Pathway analysis revealed that the DEGs were enriched in the PPAR signaling pathway, AMPK signal pathway, and Insulin signaling pathway. Our results provide an in-depth understanding of the function and regulation mechanism of FAPT1 in fat metabolism.
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Affiliation(s)
- Xuchun Liu
- College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, China; (X.L.); (S.L.); (L.W.); (W.Z.); (Y.W.); (L.Z.)
| | - Shijun Li
- College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, China; (X.L.); (S.L.); (L.W.); (W.Z.); (Y.W.); (L.Z.)
| | - Liyun Wang
- College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, China; (X.L.); (S.L.); (L.W.); (W.Z.); (Y.W.); (L.Z.)
| | - Weiyi Zhang
- College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, China; (X.L.); (S.L.); (L.W.); (W.Z.); (Y.W.); (L.Z.)
| | - Yujuan Wang
- College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, China; (X.L.); (S.L.); (L.W.); (W.Z.); (Y.W.); (L.Z.)
| | - Linsheng Gui
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China;
| | - Linsen Zan
- College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, China; (X.L.); (S.L.); (L.W.); (W.Z.); (Y.W.); (L.Z.)
| | - Chunping Zhao
- College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, China; (X.L.); (S.L.); (L.W.); (W.Z.); (Y.W.); (L.Z.)
- Correspondence: ; Tel.: +86-29-8709-1247; Fax: +86-29-8709-1148
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10
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Tang J, Yu H, Wang Y, Duan G, Wang B, Li W, Zhu Z. miR-27a promotes osteogenic differentiation in glucocorticoid-treated human bone marrow mesenchymal stem cells by targeting PI3K. J Mol Histol 2021; 52:279-288. [PMID: 33532936 DOI: 10.1007/s10735-020-09947-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 12/18/2020] [Indexed: 01/20/2023]
Abstract
MicroRNA-27a (miR-27a) modulates osteogenic differentiation (OD); however, the mechanism by which it influences osteoclastic activity in the glucocorticoid (GC)-elicited osteoporotic bone is still unclear. Bone marrow was obtained from the proximal femur of patients (n = 3) with a femoral neck fracture and those (n = 3) with steroid-related osteonecrosis of the femoral head (ONFH). GC was applied to an established ONFH cell model from human bone marrow mesenchymal stem cells (hBMSCs). The miR-27a expression profiles were found to be downregulated in ONFH samples and GC-induced hBMSCs using microarray analysis and real-time quantitative polymerase chain reaction, whereas the OD capacity of hBMSCs was significantly reduced in the GC group compared with the control group. Subsequent transfection of an miR-27a mimic in hBMSCs revealed that the OD capacity of cells was remarkably strengthened in the GC group compared with the miR-control group. Bioinformatics software (TargetScan) predicted that phosphoinositide 3-kinase (PI3K) might be a potential miR-27a target, which was indicated by dual-luciferase reporter assay. Compared with the control group, the GC group exhibited a significantly downregulated protein expression level of PI3K and its downstream protein kinase B (Akt) and mammalian target of rapamycin (mTOR) expression. Furthermore, administration of 10 μM 740 Y-P, a cell-permeable phosphopeptide activator of PI3K, to hBMSCs increased the expression of Akt and mTOR. Treatment with 740 Y-P reversed the effect of miR-27a on OD in hBMSCs. In conclusion, miR-27a is thought to relieve ONFH and the OD repression in GC-induced hBMSCs by targeting the PI3K/Akt/mTOR pathway.
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Affiliation(s)
- Jinshan Tang
- Department of Orthopedics, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, China
- Department of Orthopedics, The Second People's Hospital of Huai'an, Huai'an, Jiangsu, China
| | - Huaixi Yu
- Department of Orthopedics, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, China
- Department of Orthopedics, The Second People's Hospital of Huai'an, Huai'an, Jiangsu, China
| | - Yunqing Wang
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, No.32, Meijian Road, Xuzhou, 221006, Jiangsu, China
| | - Gang Duan
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, No.32, Meijian Road, Xuzhou, 221006, Jiangsu, China
| | - Bin Wang
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, No.32, Meijian Road, Xuzhou, 221006, Jiangsu, China
| | - Wenbo Li
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, No.32, Meijian Road, Xuzhou, 221006, Jiangsu, China
| | - Ziqiang Zhu
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, No.32, Meijian Road, Xuzhou, 221006, Jiangsu, China.
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11
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Morsing M, Kim J, Villadsen R, Goldhammer N, Jafari A, Kassem M, Petersen OW, Rønnov-Jessen L. Fibroblasts direct differentiation of human breast epithelial progenitors. Breast Cancer Res 2020; 22:102. [PMID: 32993755 PMCID: PMC7526135 DOI: 10.1186/s13058-020-01344-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 09/16/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Breast cancer arises within specific regions in the human breast referred to as the terminal duct lobular units (TDLUs). These are relatively dynamic structures characterized by sex hormone driven cyclic epithelial turnover. TDLUs consist of unique parenchymal entities embedded within a fibroblast-rich lobular stroma. Here, we established and characterized a new human breast lobular fibroblast cell line against its interlobular counterpart with a view to assessing the role of region-specific stromal cues in the control of TDLU dynamics. METHODS Primary lobular and interlobular fibroblasts were transduced to express human telomerase reverse transcriptase (hTERT). Differentiation of the established cell lines along lobular and interlobular pathways was determined by immunocytochemical staining and genome-wide RNA sequencing. Their functional properties were further characterized by analysis of mesenchymal stem cell (MSC) differentiation repertoire in culture and in vivo. The cells' physiological relevance for parenchymal differentiation was examined in heterotypic co-culture with fluorescence-activated cell sorting (FACS)-purified normal breast primary luminal or myoepithelial progenitors. The co-cultures were immunostained for quantitative assessment of epithelial branching morphogenesis, polarization, growth, and luminal epithelial maturation. In extension, myoepithelial progenitors were tested for luminal differentiation capacity in culture and in mouse xenografts. To unravel the significance of transforming growth factor-beta (TGF-β)-mediated crosstalk in TDLU-like morphogenesis and differentiation, fibroblasts were incubated with the TGF-β signaling inhibitor, SB431542, prior to heterotypic co-culture with luminal cells. RESULTS hTERT immortalized fibroblast cell lines retained critical phenotypic traits in culture and linked to primary fibroblasts. Cell culture assays and transplantation to mice showed that the origin of fibroblasts determines TDLU-like and ductal-like differentiation of epithelial progenitors. Whereas lobular fibroblasts supported a high level of branching morphogenesis by luminal cells, interlobular fibroblasts supported ductal-like myoepithelial characteristics. TDLU-like morphogenesis, at least in part, relied on intact TGF-β signaling. CONCLUSIONS The significance of the most prominent cell type in normal breast stroma, the fibroblast, in directing epithelial differentiation is largely unknown. Through establishment of lobular and interlobular fibroblast cell lines, we here demonstrate that epithelial progenitors are submitted to stromal cues for site-specific differentiation. Our findings lend credence to considering stromal subtleties of crucial importance in the development of normal breast and, in turn, breast cancer.
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Affiliation(s)
- Mikkel Morsing
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.,Danish Stem Cell Centre, University of Copenhagen, Copenhagen, Denmark.,Present Address: Division of Translational Cancer Research, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Jiyoung Kim
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.,Danish Stem Cell Centre, University of Copenhagen, Copenhagen, Denmark
| | - René Villadsen
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Nadine Goldhammer
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.,Danish Stem Cell Centre, University of Copenhagen, Copenhagen, Denmark
| | - Abbas Jafari
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.,Danish Stem Cell Centre, University of Copenhagen, Copenhagen, Denmark.,Laboratory of Molecular Endocrinology, KMEB, Department of Endocrinology, Odense University Hospital and University of Southern Denmark, Odense, Denmark
| | - Moustapha Kassem
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.,Danish Stem Cell Centre, University of Copenhagen, Copenhagen, Denmark.,Laboratory of Molecular Endocrinology, KMEB, Department of Endocrinology, Odense University Hospital and University of Southern Denmark, Odense, Denmark
| | - Ole William Petersen
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.,Danish Stem Cell Centre, University of Copenhagen, Copenhagen, Denmark
| | - Lone Rønnov-Jessen
- Section for Cell Biology and Physiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark.
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12
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Tang J, Yu H, Wang Y, Duan G, Wang B, Li W, Zhu Z. microRNA-199a counteracts glucocorticoid inhibition of bone marrow mesenchymal stem cell osteogenic differentiation through regulation of Klotho expression in vitro. Cell Biol Int 2020; 44:2532-2540. [PMID: 32869899 DOI: 10.1002/cbin.11460] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 08/11/2020] [Accepted: 08/30/2020] [Indexed: 11/11/2022]
Abstract
Osteogenic differentiation (OD) of bone marrow mesenchymal stem cells (BMSCs) is critically important for mitigation of osteoporosis. Glucocorticoids (GCs) are extensively used for treating chronic inflammation, although long-term exposure to GCs is capable of triggering osteoporosis. microRNAs (miRNAs) have been reported to play a critical role in bone diseases. In the present study, we treated BMSCs with dexamethasone (DEX) during OD to stimulate GC-mediated osteoporosis. Microarray and quantitative polymerase chain reaction (Q-PCR) assays demonstrated that miR-199a was upregulated during OD of BMSCs, while DEX treatment caused a significant reduction in miR-199a. Alkaline phosphatase (ALP) activity, Alizarin red (AR) staining, and Q-PCR were applied to assess the role of miRNA-199a overexpression in DEX-triggered OD inhibition. miR-199a was able to rescue OD and ALP activity, which were inhibited by DEX. Additionally, we observed that ALP, BMP2, COL1A1, and Runx2 were increased after transfection of miRNA-199a mimics. Furthermore, we confirmed that miRNA-199a facilitates OD of BMSCs through direct inhibition of Klotho protein and messenger RNA expression affecting the downstream fibroblast growth factor receptor 1/extracellular-signal-regulated kinase and Janus kinase 1/signal transducer and activator of transcription 1 pathways. This study indicates that miR-199a plays a critical role in preventing GC-mediated osteoblast differentiation and may function as a promising miRNA biomarker for osteoporosis.
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Affiliation(s)
- Jinshan Tang
- Department of Orthopedics, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, China.,Department of Orthopedics, The Second People's Hospital of Huai'an, Huai'an, Jiangsu, China
| | - Huaixi Yu
- Department of Orthopedics, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, China.,Department of Orthopedics, The Second People's Hospital of Huai'an, Huai'an, Jiangsu, China
| | - Yunqing Wang
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Gang Duan
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Bin Wang
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Wenbo Li
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Ziqiang Zhu
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
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13
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Gilchrist AE, Harley BA. Connecting secretome to hematopoietic stem cell phenotype shifts in an engineered bone marrow niche. Integr Biol (Camb) 2020; 12:175-187. [PMID: 32556172 PMCID: PMC7384206 DOI: 10.1093/intbio/zyaa013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 04/21/2020] [Accepted: 05/08/2020] [Indexed: 01/06/2023]
Abstract
Hematopoietic stem cells (HSCs) primarily reside in the bone marrow, where they receive external cues from their local microenvironment. The complex milieu of biophysical cues, cellular components and cell-secreted factors regulates the process by which HSC produce the blood and immune system. We previously showed direct coculture of primary murine hematopoietic stem and progenitor cells with a population of marrow-derived mesenchymal stromal and progenitor cells (MSPCs) in a methacrylamide-functionalized gelatin (GelMA) hydrogel improves hematopoietic progenitor maintenance. However, the mechanism by which MSPCs influenced HSC fate decisions remained unknown. Herein, we report the use of proteomic analysis to correlate HSC phenotype to a broad candidate pool of 200 soluble factors produced by combined mesenchymal and hematopoietic progeny. Partial least squares regression (PLSR), along with an iterative filter method, identified TGFβ-1, MMP-3, c-RP and TROY as positively correlated with HSC maintenance. Experimentally, we then observe exogenous stimulation of HSC monocultures in GelMA hydrogels with these combined cytokines increases the ratio of hematopoietic progenitors to committed progeny after a 7-day culture 7.52 ± 3.65-fold compared to non-stimulated monocultures. Findings suggest a cocktail of the downselected cytokines amplifies hematopoietic maintenance potential of HSCs beyond that of MSPC-secreted factors alone. This work integrates empirical and computation methods to identify cytokine combinations to improve HSC maintenance within an engineered HSC niche, suggesting a route toward identifying feeder-free culture platforms for HSC expansion. Insight Hematopoietic stem cells within an artificial niche receive maintenance cues in the form of soluble factors from hematopoietic and mesenchymal progeny. Applying a proteomic regression analysis, we identify a reduced set of soluble factors correlated to maintenance of a hematopoietic phenotype during culture in a biomaterial model of the bone marrow niche. We identify a minimum factor cocktail that promotes hematopoietic maintenance potential in a gelatin-based culture, regardless of the presence of mesenchymal feeder cells. By combining empirical and computational methods, we report an experimentally feasible number of factors from a large dataset, enabling exogenous integration of soluble factors into an engineered hematopoietic stem cell for enhanced maintenance potential of a quiescent stem cell population.
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Affiliation(s)
- Aidan E. Gilchrist
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Brendan A.C. Harley
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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14
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Ni L, Yu J, Gui X, Lu Z, Wang X, Guo H, Zhou Y. Overexpression of RPN2 promotes osteogenic differentiation of hBMSCs through the JAK/STAT3 pathway. FEBS Open Bio 2019; 10:158-167. [PMID: 31743606 PMCID: PMC6943221 DOI: 10.1002/2211-5463.12766] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 10/28/2019] [Accepted: 11/18/2019] [Indexed: 12/13/2022] Open
Abstract
Osteoporosis is characterized by decreased bone mass and degenerating bone structure, which cause severe bone fragility and increase the risk for fractures. Human bone mesenchymal stem cells (hBMSCs) differentiate into osteoblasts through osteogenesis, and disturbances in the balance between bone generation and degeneration underlie the pathogenesis of senile osteoporosis. The highly conserved glycoprotein Ribophorin II (RPN2) is involved in multiple biological reactions, but the role of RPN2 in the osteogenic differentiation of hBMSCs and their molecular etiology is incompletely understood. Here, we show that RPN2 expression is up‐regulated in hBMSCs during osteogenic differentiation. In vitro assays revealed that silencing of RPN2 inhibited hBMSC differentiation into osteoblasts. Moreover, RPN2 overexpression enhanced the expression of linked genes and resulted in high alkaline phosphatase activity. Our results suggest that RPN2 targets Janus kinase 1 (JAK1), and RPN2 overexpression was observed to induce JAK1 ubiquitination. Depletion of JAK1 facilitated osteogenic differentiation of RPN2‐silenced hBMSCs. Moreover, western blot analysis revealed that RPN2 silencing suppressed the stimulation and nuclear translocation of the downstream signal transducer and activator of transcription 3 sensor; this could be reversed via RPN2 overexpression. This research sheds light on an innovative molecular mechanism that is associated with hBMSC differentiation into osteoblasts and may facilitate bone anabolism through RPN2.
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Affiliation(s)
- Ling Ni
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Jianhua Yu
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Xueqiong Gui
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Zhonghua Lu
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Xiwen Wang
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Hongyan Guo
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Ying Zhou
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
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15
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Prabha RD, Ding M, Bollen P, Ditzel N, Varma HK, Nair PD, Kassem M. Strontium ion reinforced bioceramic scaffold for load bearing bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 109:110427. [PMID: 32228983 DOI: 10.1016/j.msec.2019.110427] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 11/10/2019] [Accepted: 11/12/2019] [Indexed: 12/16/2022]
Abstract
Bone defects in load bearing areas require bone reconstruction with strong biomaterial having mechanical characteristics like cortical bone. Bioceramics are biomaterials that support bone formation as well as provide adequate mechanical properties. A strontium substitution of the bioceramic is expected to further increase its bioactivity by enhancing osteogenesis and protect the bone from osteoclastic resorption. The study involves development, characterization and in vivo testing of a newly developed strontium substituted hydroxyapatite based bioceramic scaffold (SrHAB) with sufficient biomechanical properties. Optimal concentration of strontium ion required for enhanced osteogenic differentiation was identified by comparing three compositions of SrHAB scaffold; namely Sr10HAB, Sr30HAB and Sr50 HAB for their Alkaline phosphatase activity in vitro. The selected Sr10HAB scaffold demonstrated in vivo bone formation with osteogenic differentiation of stromal derived mesenchymal stem cells (MSC) from human and ovine sources in ectopic and ovine models. Thus, Sr10HAB scaffold has a potential for application in load bearing bone requirements of orthopaedics and dentistry.
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Affiliation(s)
- R D Prabha
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital & University of Southern Denmark, Odense, Denmark; Department of Orthodontics, Amrita School of Dentistry, Amrita Vishwa Vidyapeetham, India.
| | - Ming Ding
- Orthopaedic Research Laboratory, Department of Orthopaedic Surgery & Traumatology, Odense University Hospital, Institute of Clinical Research, University of Southern Denmark, Denmark
| | - P Bollen
- Biomedical Laboratory, Faculty of Health Science, University of Southern Denmark, Denmark
| | - N Ditzel
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital & University of Southern Denmark, Odense, Denmark
| | - H K Varma
- Bioceramic Laboratory, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, India
| | - P D Nair
- Division of Tissue Engineering and Regeneration Technologies, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, India
| | - M Kassem
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital & University of Southern Denmark, Odense, Denmark; DanStem (Danish Stem Cell Center), Panum Institute, University of Copenhagen, Copenhagen, Denmark
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16
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Xiao F, Zhou Y, Liu Y, Xie M, Guo G. Inhibitory Effect of Sirtuin6 (SIRT6) on Osteogenic Differentiation of Bone Marrow Mesenchymal Stem Cells. Med Sci Monit 2019; 25:8412-8421. [PMID: 31701920 PMCID: PMC6858786 DOI: 10.12659/msm.917118] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The imbalance between bone resorption and formation is the basic mechanism underlying osteoporosis in the elderly. Osteogenesis is the differentiation of human mesenchymal stem cells (hMSCs) into osteoblasts. Sirtuin6 (SIRT6) regulates various biological functions, including differentiation. Transient receptor potential cation channel subfamily V member 1 (TRPV1) is a non-selective cation channel that can be activated by physical and chemical stimulation. However, experimental data supporting the role of SIRT6 in osteogenic differentiation (OD) of hMSCs are lacking. MATERIAL AND METHODS Differentiation of hMSCs was induced. The expressions of SIRT6, TRPV1, and CGRP were detected by Q-PCR, Western blot, and ELISA, respectively. SIRT6 was overexpressed in hMSCs by transfection. ALP activity and Alizarin Red staining were utilized to detect the effect of SIRT6 on hMSC OD. Then, capsaicin and capsazepine, the TRPV1 agonist and antagonist, respectively, were administrated to assess the role of TRPV1. RESULTS SIRT6 expression was downregulated during hMSC differentiation. SIRT6 overexpression was accompanied by reduced expression of specific genes and alkaline phosphatase (ALP) activity in osteoblasts. Furthermore, TRPV1 channel was also reduced by SIRT6 overexpression via ubiquitinating TRPV1. Capsaicin was utilized in SIRT6-overexpressed cells. Capsaicin therapy counteracted the effect of SIRT6 overexpression on OD, and markedly decreased OD. CONCLUSIONS The SIRT6-TRPV1-CGRP signal axis is the key to regulating OD in hMSCs, which could be a potential therapeutic target for osteoporosis and bone loss-related diseases.
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Affiliation(s)
- Fei Xiao
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Yun Zhou
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Yongfu Liu
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Mian Xie
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Guancheng Guo
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China (mainland)
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17
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George EL, Truesdell SL, Magyar AL, Saunders MM. The effects of mechanically loaded osteocytes and inflammation on bone remodeling in a bisphosphonate-induced environment. Bone 2019; 127:460-473. [PMID: 31301402 DOI: 10.1016/j.bone.2019.07.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 07/03/2019] [Accepted: 07/08/2019] [Indexed: 12/23/2022]
Abstract
Bisphosphonate-related osteonecrosis of the jaw is a disease appearing after tooth removal in patients undergoing bisphosphonate treatment for metastasizing cancers and osteoporosis. The complexity of the condition requires a multicellular model to address the net effects of two key risk factors: mechanical trauma (pathologic overload) and inflammation. In this work, a system comprised of a polydimethylsiloxane chip and mechanical loading device is used to expose bisphosphonate-treated osteocytes to mechanical trauma. Specifically, osteocytes are treated with the potent nitrogen-containing bisphosphonate, zoledronic acid, and exposed to short-term pathologic overload via substrate stretch. During bone remodeling, osteocyte apoptosis plays a role in attracting pre-osteoclasts to sites of damage; as such, lactate dehydrogenase activity, cell death and protein expression are evaluated as functions of load. Additionally, the effects of osteocyte soluble factors on osteoclast and osteoblast functional activity are quantified. Osteoclast activity and bone resorption are quantified in the presence and absence of inflammatory components, lipopolysaccharide and interferon gamma. Results suggest that inflammation associated with bacterial infection may hinder bone resorption by osteoclasts. In addition, osteocytes may respond to overload by altering expression of soluble signals that act on osteoblasts to attenuate bone formation. These findings give insight into the multicellular interactions implicated in bisphosphonate-related osteonecrosis of the jaw.
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Affiliation(s)
- Estee L George
- The University of Akron, Olson Research Center 319, 302 E. Buchtel Ave., Akron, OH 44325-0302, USA.
| | - Sharon L Truesdell
- The University of Akron, Olson Research Center 319, 302 E. Buchtel Ave., Akron, OH 44325-0302, USA.
| | - Alexandria L Magyar
- The University of Akron, Olson Research Center 319, 302 E. Buchtel Ave., Akron, OH 44325-0302, USA.
| | - Marnie M Saunders
- The University of Akron, Olson Research Center 319, 302 E. Buchtel Ave., Akron, OH 44325-0302, USA.
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18
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Ménard C, Dulong J, Roulois D, Hébraud B, Verdière L, Pangault C, Sibut V, Bezier I, Bescher N, Monvoisin C, Gadelorge M, Bertheuil N, Flécher E, Casteilla L, Collas P, Sensebé L, Bourin P, Espagnolle N, Tarte K. Integrated transcriptomic, phenotypic, and functional study reveals tissue-specific immune properties of mesenchymal stromal cells. Stem Cells 2019; 38:146-159. [PMID: 31502731 DOI: 10.1002/stem.3077] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 07/08/2019] [Accepted: 07/25/2019] [Indexed: 12/13/2022]
Abstract
Clinical-grade mesenchymal stromal cells (MSCs) can be expanded from bone marrow and adipose tissue to treat inflammatory diseases and degenerative disorders. However, the influence of their tissue of origin on their functional properties, including their immunosuppressive activity, remains unsolved. In this study, we produced paired bone marrow-derived mesenchymal stromal cell (BM-MSC) and adipose-derived stromal cell (ASC) batches from 14 healthy donors. We then compared them using transcriptomic, phenotypic, and functional analyses and validated our results on purified native MSCs to infer which differences were really endowed by tissue of origin. Cultured MSCs segregated together owing to their tissue of origin based on their gene expression profile analyzed using differential expression and weighted gene coexpression network analysis. This translated into distinct immune-related gene signatures, phenotypes, and functional cell interactions. Importantly, sorted native BM-MSCs and ASCs essentially displayed the same distinctive patterns than their in vitro-expanded counterparts. As a whole, ASCs exhibited an immune profile consistent with a stronger inhibition of immune response and a lower immunogenicity, supporting the use of adipose tissue as a valuable source for clinical applications.
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Affiliation(s)
- Cédric Ménard
- UMR 1236, University of Rennes, INSERM, Etablissement Français du Sang Bretagne, Rennes, France.,SITI Laboratory, Etablissement Français du Sang Bretagne, CHU Rennes, Rennes, France
| | - Joëlle Dulong
- UMR 1236, University of Rennes, INSERM, Etablissement Français du Sang Bretagne, Rennes, France.,SITI Laboratory, Etablissement Français du Sang Bretagne, CHU Rennes, Rennes, France
| | - David Roulois
- UMR 1236, University of Rennes, INSERM, Etablissement Français du Sang Bretagne, Rennes, France
| | - Benjamin Hébraud
- STROMALab, Etablissement Français du Sang-Occitanie (EFS), Inserm 1031, University of Toulouse, National Veterinary School of Toulouse (ENVT), ERL5311 CNRS, Toulouse, France
| | - Léa Verdière
- UMR 1236, University of Rennes, INSERM, Etablissement Français du Sang Bretagne, Rennes, France
| | - Céline Pangault
- UMR 1236, University of Rennes, INSERM, Etablissement Français du Sang Bretagne, Rennes, France.,Pôle Biologie, CHU Rennes, Rennes, France
| | - Vonick Sibut
- UMR 1236, University of Rennes, INSERM, Etablissement Français du Sang Bretagne, Rennes, France.,SITI Laboratory, Etablissement Français du Sang Bretagne, CHU Rennes, Rennes, France
| | - Isabelle Bezier
- UMR 1236, University of Rennes, INSERM, Etablissement Français du Sang Bretagne, Rennes, France.,SITI Laboratory, Etablissement Français du Sang Bretagne, CHU Rennes, Rennes, France
| | - Nadège Bescher
- UMR 1236, University of Rennes, INSERM, Etablissement Français du Sang Bretagne, Rennes, France.,SITI Laboratory, Etablissement Français du Sang Bretagne, CHU Rennes, Rennes, France
| | - Céline Monvoisin
- UMR 1236, University of Rennes, INSERM, Etablissement Français du Sang Bretagne, Rennes, France
| | - Mélanie Gadelorge
- STROMALab, Etablissement Français du Sang-Occitanie (EFS), Inserm 1031, University of Toulouse, National Veterinary School of Toulouse (ENVT), ERL5311 CNRS, Toulouse, France
| | - Nicolas Bertheuil
- SITI Laboratory, Etablissement Français du Sang Bretagne, CHU Rennes, Rennes, France.,Department of Plastic Surgery, CHU Rennes, Rennes, France
| | - Erwan Flécher
- Department of Thoracic and Cardiac Surgery, CHU Rennes, Rennes, France
| | - Louis Casteilla
- STROMALab, Etablissement Français du Sang-Occitanie (EFS), Inserm 1031, University of Toulouse, National Veterinary School of Toulouse (ENVT), ERL5311 CNRS, Toulouse, France
| | - Philippe Collas
- Department of Molecular Medicine, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Luc Sensebé
- STROMALab, Etablissement Français du Sang-Occitanie (EFS), Inserm 1031, University of Toulouse, National Veterinary School of Toulouse (ENVT), ERL5311 CNRS, Toulouse, France
| | | | - Nicolas Espagnolle
- STROMALab, Etablissement Français du Sang-Occitanie (EFS), Inserm 1031, University of Toulouse, National Veterinary School of Toulouse (ENVT), ERL5311 CNRS, Toulouse, France
| | - Karin Tarte
- UMR 1236, University of Rennes, INSERM, Etablissement Français du Sang Bretagne, Rennes, France.,SITI Laboratory, Etablissement Français du Sang Bretagne, CHU Rennes, Rennes, France
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19
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Pei YF, Liu L, Liu TL, Yang XL, Zhang H, Wei XT, Feng GJ, Hai R, Ran S, Zhang L. Joint Association Analysis Identified 18 New Loci for Bone Mineral Density. J Bone Miner Res 2019; 34:1086-1094. [PMID: 30690781 DOI: 10.1002/jbmr.3681] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 01/01/2019] [Accepted: 01/19/2019] [Indexed: 11/09/2022]
Abstract
Bone mineral density (BMD) at various skeletal sites have shared genetic determinants. In the present study, aiming to identify shared loci associated with BMD, we conducted a joint association study of a genomewide association study (GWAS) and a meta-analysis of BMD at different skeletal sites: (i) a single GWAS of heel BMD in 142,487 individuals from the UK Biobank, and (ii) a meta-analysis of 30 GWASs of total body (TB) BMD in 66,628 individuals from the Genetic Factors for Osteoporosis (GEFOS) Consortium. The genetic correlation coefficient of the two traits was estimated to be 0.57. We performed joint association analysis with a recently developed statistical method multi-trait analysis of GWAS (MTAG) to account for trait heterogeneity and sample overlap. The joint association analysis combining samples of up to 209,115 individuals identified 18 novel loci associated with BMD at the genomewide significance level (α = 5.0 × 10-8 ), explaining an additional 0.43% and 0.60% of heel-BMD and TB-BMD heritability, respectively. The vast majority of the identified lead SNPs or their proxies exerted local expression quantitative trait loci (cis-eQTL) activity. Credible risk variants, defined as those SNPs located within 500 kilobases (kb) of the lead SNP and with p values within two orders of magnitude of the lead SNP, were enriched in transcription factor binding sites (p = 3.58 × 10-4 ) and coding regions (p = 5.71 × 10-4 ). Fifty-six candidate genes were prioritized at these novel loci using multiple sources of information, including several genes being previously reported to play a role in bone biology but not reported in previous GWASs (PPARG, FBN2, DEF6, TNFRSF19, and NFE2L1). One newly identified gene, SCMH1, was shown to upregulate the expression of several bone biomarkers, including alkaline phosphatase (ALP), collagen type 1 (COL-I), osteocalcin (OCN), osteopontin (OPN), and runt-related transcription factor 2 (RUNX2), in mouse osteoblastic MC3T3-E1 cells, highlighting its regulatory role in bone formation. Our results may provide useful candidate genes for future functional investigations. © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
- Yu-Fang Pei
- Department of Epidemiology and Health Statistics, School of Public Health, Medical College of Soochow University, Jiangsu, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Jiangsu, China
| | - Lu Liu
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Jiangsu, China.,Center for Genetic Epidemiology and Genomics, School of Public Health, Medical College of Soochow University, Jiangsu, China
| | - Tao-Le Liu
- Center for Circadian Clock, School of Biology & Basic Medical Sciences, Medical College of Soochow University, Jiangsu, China
| | - Xiao-Lin Yang
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Jiangsu, China.,Center for Genetic Epidemiology and Genomics, School of Public Health, Medical College of Soochow University, Jiangsu, China
| | - Hong Zhang
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Jiangsu, China.,Center for Genetic Epidemiology and Genomics, School of Public Health, Medical College of Soochow University, Jiangsu, China
| | - Xin-Tong Wei
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Jiangsu, China.,Center for Genetic Epidemiology and Genomics, School of Public Health, Medical College of Soochow University, Jiangsu, China
| | - Gui-Juan Feng
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Jiangsu, China.,Center for Genetic Epidemiology and Genomics, School of Public Health, Medical College of Soochow University, Jiangsu, China
| | - Rong Hai
- Inner Mongolia Autonomous Region People's Hospital, Hohhot, Inner Mongolia, China
| | - Shu Ran
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Lei Zhang
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Jiangsu, China.,Center for Genetic Epidemiology and Genomics, School of Public Health, Medical College of Soochow University, Jiangsu, China
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20
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Saberi S, Piryaei A, Mirabzadeh E, Esmaeili M, Karimi T, Momtaz S, Abdirad A, Sodeifi N, Mohagheghi MA, Baharvand H, Mohammadi M. Immunohistochemical Analysis of LGR5 and TROY Expression in Gastric Carcinogenesis Demonstrates an Inverse Trend. IRANIAN BIOMEDICAL JOURNAL 2019; 23. [PMID: 30501144 PMCID: PMC6707110 DOI: 10.29252/.23.2.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Background Two of the Wnt signaling pathway target genes, tumor necrosis factor receptor family member (TROY) and leucine-rich G-protein coupled receptor (LGR5), are involved in the generation and maintenance of gastrointestinal epithelium. A negative modulatory role has recently been assigned to TROY, in this pathway. Here, we have examined their simultaneous expression in gastric carcinogenesis. Methods Tumor and paired adjacent tissues of intestinal-type gastric cancer (GC) patients (n = 30) were evaluated for LGR5 and TROY expression by immunohistochemistry. The combination of the percentage of positively¬ stained cells and the intensity of staining was defined as the composite score and compared between groups. The obtained findings were re-evaluated in a mouse model. Results TROY expression in the tumor tissue was significantly lower than that of the adjacent tissue (2.5 ± 0.9 vs. 3.3 ± 0.9, p = 0.004), which was coincident with higher LGR5 expression (3.6 ± 1.1 vs. 2.7 ± 0.9, p = 0.001). This observation was prominent at stages II/III of GC, leading to a statistically significant mean difference of expression between these two molecules (p = 0.005). In the H. pylori infected-mouse model, this inverse expression was observed in transition from early (8-16 w) to late (26-50 w) time points, post treatment (p = 0.002). Conclusion Our data demonstrates an inverse trend between TROY down-regulation and LGR5 up-regulation in GC tumors, as well as in response to H. pylori infection in mice. These findings support a potential negative modulatory role for TROY on LGR5 expression.
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Affiliation(s)
- Samaneh Saberi
- HPGC Research Group, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Abbas Piryaei
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; ,Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Esmat Mirabzadeh
- Department of Molecular Medicine, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Maryam Esmaeili
- HPGC Research Group, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Toktam Karimi
- HPGC Research Group, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Sara Momtaz
- HPGC Research Group, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Afshin Abdirad
- Department of Pathology, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Niloofar Sodeifi
- Department of Andrology at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | | | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; ,Corresponding Authors: Marjan Mohammadi, HPGC Research Group, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran; E-mail: marjan.mohammadi2010@gmail or . Hossein Baharvand , Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; E-mail:
| | - Marjan Mohammadi
- HPGC Research Group, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran; ,Corresponding Authors: Marjan Mohammadi, HPGC Research Group, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran; E-mail: marjan.mohammadi2010@gmail or . Hossein Baharvand , Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; E-mail:
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21
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Cai Q, Zheng P, Ma F, Zhang H, Li Z, Fu Q, Han C, Sun Y. MicroRNA-224 enhances the osteoblastic differentiation of hMSCs via Rac1. Cell Biochem Funct 2019; 37:62-71. [PMID: 30773655 DOI: 10.1002/cbf.3373] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 11/07/2018] [Accepted: 12/10/2018] [Indexed: 12/30/2022]
Abstract
Osteogenesis is the differentiation of mesenchymal stem cells (MSCs) into osteoblasts. MicroRNAs (miRNAs) are short noncoding RNAs that target specific genes to mediate translational activities. In this study, we investigated how miR-224 regulates the osteoblastic differentiation of human MSCs (hMSCs) as well as the underlying mechanism. The results revealed the upregulation of miR-224 during hMSC differentiation. In vitro experiments showed that the downregulation of miR-224 suppressed the differentiation of hMSCs into osteoblasts. However, upregulation of miR-224 was concomitant with increased expression of relevant genes and augmented activity of alkaline phosphatase. Furthermore, the results indicated that Rac1 acted as the bona fide target of miR-224 and that Rac1 depletion promoted osteogenic differentiation in miR-224-silenced hMSCs. In addition, we found that both JAK/STAT3 and Wnt/β-catenin pathways were repressed by Rac1 depletion using quantitative reverse transcription polymerase chain reaction (qRT-PCR), western blotting, and immunofluorescence. Our data indicate a novel molecular mechanism in relation to hMSCs differentiation into osteoblasts, which may facilitate bone anabolism via miR-224. SIGNIFICANCE OF THE STUDY: In this study, we mainly explored the effects of miR-224 on hMSCs differentiation into osteoblasts. We find that induced miR-224 expression in hMSCs is considered closely associated with specific osteogenesis-related genes, alkaline phosphatase activity, and matrix mineralization, indicating that miR-224 may serve as a promising biomarker for osteogenic differentiation. Our data indicate a novel molecular mechanism in relation to hMSCs differentiation into osteoblasts, which may facilitate bone anabolism via miR-224.
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Affiliation(s)
- Qing Cai
- Department of Dental Implantology, School and Hospital of Stomotology, Jinlin University, Changchun, China.,Jinlin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun, China
| | - Peng Zheng
- Department of Endodontics, School and Hospital of Stomotology, Jinlin University, Changchun, China
| | - Fuzhe Ma
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Huiyan Zhang
- Department of Dental Implantology, School and Hospital of Stomotology, Jinlin University, Changchun, China
| | - Zuntai Li
- Department of Dental Implantology, School and Hospital of Stomotology, Jinlin University, Changchun, China
| | - Qiyue Fu
- Department of Dental Implantology, School and Hospital of Stomotology, Jinlin University, Changchun, China
| | - Chunyu Han
- Department of Dental Implantology, School and Hospital of Stomotology, Jinlin University, Changchun, China
| | - Yingying Sun
- Department of Stomatology, The First Hospital of Jilin University, Changchun, China
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22
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Merryweather-Clarke AT, Cook D, Lara BJ, Hua P, Repapi E, Ashley N, Lim SY, Watt SM. Does osteogenic potential of clonal human bone marrow mesenchymal stem/stromal cells correlate with their vascular supportive ability? Stem Cell Res Ther 2018; 9:351. [PMID: 30567594 PMCID: PMC6300038 DOI: 10.1186/s13287-018-1095-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 11/28/2018] [Accepted: 11/30/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Human bone marrow-derived mesenchymal stem/stromal cells (hBM MSCs) have multiple functions, critical for skeletal formation and function. Their functional heterogeneity, however, represents a major challenge for their isolation and in developing potency and release assays to predict their functionality prior to transplantation. Additionally, potency, biomarker profiles and defining mechanisms of action in a particular clinical setting are increasing requirements of Regulatory Agencies for release of hBM MSCs as Advanced Therapy Medicinal Products for cellular therapies. Since the healing of bone fractures depends on the coupling of new blood vessel formation with osteogenesis, we hypothesised that a correlation between the osteogenic and vascular supportive potential of individual hBM MSC-derived CFU-F (colony forming unit-fibroblastoid) clones might exist. METHODS We tested this by assessing the lineage (i.e. adipogenic (A), osteogenic (O) and/or chondrogenic (C)) potential of individual hBM MSC-derived CFU-F clones and determining if their osteogenic (O) potential correlated with their vascular supportive profile in vitro using lineage differentiation assays, endothelial-hBM MSC vascular co-culture assays and transcriptomic (RNAseq) analyses. RESULTS Our results demonstrate that the majority of CFU-F (95%) possessed tri-lineage, bi-lineage or uni-lineage osteogenic capacity, with 64% of the CFU-F exhibiting tri-lineage AOC potential. We found a correlation between the osteogenic and vascular tubule supportive activity of CFU-F clones, with the strength of this association being donor dependent. RNAseq of individual clones defined gene fingerprints relevant to this correlation. CONCLUSIONS This study identified a donor-dependent correlation between osteogenic and vascular supportive potential of hBM MSCs and important gene signatures that support these functions that are relevant to their bone regenerative properties.
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Affiliation(s)
- Alison T. Merryweather-Clarke
- Stem Cell Research, Nuffield Division of Clinical Laboratory Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, OX3 9BQ UK
- Stem Cell Research, NHS Blood and Transplant, John Radcliffe Hospital, Oxford, OX3 9BQ UK
| | - David Cook
- Stem Cell Research, Nuffield Division of Clinical Laboratory Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, OX3 9BQ UK
- Stem Cell Research, NHS Blood and Transplant, John Radcliffe Hospital, Oxford, OX3 9BQ UK
| | - Barbara Joo Lara
- Stem Cell Research, Nuffield Division of Clinical Laboratory Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, OX3 9BQ UK
- Stem Cell Research, NHS Blood and Transplant, John Radcliffe Hospital, Oxford, OX3 9BQ UK
| | - Peng Hua
- Stem Cell Research, Nuffield Division of Clinical Laboratory Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, OX3 9BQ UK
- Stem Cell Research, NHS Blood and Transplant, John Radcliffe Hospital, Oxford, OX3 9BQ UK
- Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, Oxford, OX3 9BQ UK
| | - Emmanouela Repapi
- Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, Oxford, OX3 9BQ UK
| | - Neil Ashley
- Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, Oxford, OX3 9BQ UK
| | - Shiang Y. Lim
- Department of Surgery, University of Melbourne, Fitzroy, Victoria 3065 Australia
- O’Brien Institute Department, St. Vincent’s Institute of Medical Research, Fitzroy, Victoria 3065 Australia
| | - Suzanne M. Watt
- Stem Cell Research, Nuffield Division of Clinical Laboratory Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, OX3 9BQ UK
- Stem Cell Research, NHS Blood and Transplant, John Radcliffe Hospital, Oxford, OX3 9BQ UK
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23
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Prabha RD, Nair BP, Ditzel N, Kjems J, Nair PD, Kassem M. Strontium functionalized scaffold for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:509-515. [PMID: 30423735 DOI: 10.1016/j.msec.2018.09.054] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 09/06/2017] [Accepted: 09/20/2018] [Indexed: 01/05/2023]
Abstract
Drug functionalized scaffolds are currently being employed to improve local delivery of osteoprotective drugs with the aim of reducing their loading dose as well as unwanted systemic complications. In this study we tested a poly-(ε) caprolactone (PCL)-laponite-strontium ranelate (SRA) composite scaffold (PLS3) for its abilities to support growth and osteogenic differentiation of human marrow derived stromal stem cells (hMSC). The in vitro experiments showed the PLS3 scaffold supported cell growth and osteogenic differentiation. The in vivo implantation of hMSC seeded PLS3 scaffold in immunocompromised mice revealed vascularized ectopic bone formation. PLS3 scaffolds can be useful in bone regenerative applications in the fields of orthopaedics and dentistry.
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Affiliation(s)
- Rahul D Prabha
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital & University of Southern Denmark, Odense, Denmark; Department of Orthodontics and Dentofacial Orthopaedics, Amrita School of Dentistry, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682041, India.
| | - Bindu P Nair
- Division of Tissue Engineering and Regeneration Technologies (DTERT), Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, India
| | - Nicholas Ditzel
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital & University of Southern Denmark, Odense, Denmark
| | - Jorgen Kjems
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus C 8000, Denmark
| | - Prabha D Nair
- Division of Tissue Engineering and Regeneration Technologies (DTERT), Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, India
| | - Moustapha Kassem
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital & University of Southern Denmark, Odense, Denmark
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24
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Quang HV, Chang CC, Song P, Hauge EM, Kjems J. Caveolae-mediated mesenchymal stem cell labelling by PSS-coated PLGA PFOB nano-contrast agent for MRI. Theranostics 2018; 8:2657-2671. [PMID: 29774066 PMCID: PMC5957000 DOI: 10.7150/thno.23206] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Accepted: 02/23/2018] [Indexed: 11/21/2022] Open
Abstract
Rationale: Non-invasive tracking of transplanted cells is critical in evaluating delivery, migration and prognosis of cell therapies. Methods: We formulated a nano-contrast agent consisting of a perfluorooctylbromide (PFOB) core within a shell of poly (lactic-co-glycolic acid) (PLGA) followed by a coat of polystyrene sulfonate (PSS) for 19F MRI. The nano-contrast agent (PSS-NP) was characterised by DLS and the uptake efficiency of the nano-contrast agent (PSS-NP) was tested using flow cytometry, in vitro MRI and confocal microscopy. In vitro and in vivo assays of labelled cells were tested for their ability to provide an MRI signal while retaining their osteoblastic differentiation capabilities. Results: PSS-NPs were internalised via caveolae-mediated endocytosis in mesenchymal stromal/stem cells without affecting cell proliferation and differentiation in osteoblasts, both in vitro and in vivo. Furthermore, labelled cells were monitored by 19F MRI for up to 2 months after transplantation in mice. In particular, PSS-NP-labelled cells can be used to monitor the enhanced immune rejection of grafted human cells in normal BALB/c mice compared to immune-compromised NOD/SCID mice. One week after transplantation, 40% of the 19F MRI signal was lost in normal mice, whereas only 10% was lost in immune-compromised mice. Conclusion: Overall, these results show that PSS-NPs can label MSCs effectively, and be employed in vivo as a novel nano-contrast agent for non-invasive cell tracking using clinically relevant 19F MRI techniques.
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25
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Chen J, Nefzger CM, Rossello FJ, Sun YBY, Lim SM, Liu X, de Boer S, Knaupp AS, Li J, Davidson KC, Polo JM, Barberi T. Fine Tuning of Canonical Wnt Stimulation Enhances Differentiation of Pluripotent Stem Cells Independent of β-Catenin-Mediated T-Cell Factor Signaling. Stem Cells 2018; 36:822-833. [PMID: 29396901 DOI: 10.1002/stem.2794] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 12/20/2017] [Accepted: 01/12/2018] [Indexed: 12/16/2022]
Abstract
The canonical Wnt/β-catenin pathway is crucial for early embryonic patterning, tissue homeostasis, and regeneration. While canonical Wnt/β-catenin stimulation has been used extensively to modulate pluripotency and differentiation of pluripotent stem cells (PSCs), the mechanism of these two seemingly opposing roles has not been fully characterized and is currently largely attributed to activation of nuclear Wnt target genes. Here, we show that low levels of Wnt stimulation via ectopic expression of Wnt1 or administration of glycogen synthase kinase-3 inhibitor CHIR99021 significantly increases PSC differentiation into neurons, cardiomyocytes and early endodermal intermediates. Our data indicate that enhanced differentiation outcomes are not mediated through activation of traditional Wnt target genes but by β-catenin's secondary role as a binding partner of membrane bound cadherins ultimately leading to the activation of developmental genes. In summary, fine-tuning of Wnt signaling to subthreshold levels for detectable nuclear β-catenin function appears to act as a switch to enhance differentiation of PSCs into multiple lineages. Our observations highlight a mechanism by which Wnt/β-catenin signaling can achieve dosage dependent dual roles in regulating self-renewal and differentiation. Stem Cells 2018;36:822-833.
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Affiliation(s)
- Joseph Chen
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
| | - Christian M Nefzger
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
| | - Fernando J Rossello
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Yu B Y Sun
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
| | - Sue Mei Lim
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
| | - Xiaodong Liu
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
| | - Suzan de Boer
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
| | - Anja S Knaupp
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
| | - Jinhua Li
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
| | - Kathryn C Davidson
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Jose M Polo
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
| | - Tiziano Barberi
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, Texas, USA
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Chang CC, Venø MT, Chen L, Ditzel N, Le DQS, Dillschneider P, Kassem M, Kjems J. Global MicroRNA Profiling in Human Bone Marrow Skeletal-Stromal or Mesenchymal-Stem Cells Identified Candidates for Bone Regeneration. Mol Ther 2017; 26:593-605. [PMID: 29331291 DOI: 10.1016/j.ymthe.2017.11.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 11/28/2017] [Accepted: 11/28/2017] [Indexed: 02/07/2023] Open
Abstract
Bone remodeling and regeneration are highly regulated multistep processes involving posttranscriptional regulation by microRNAs (miRNAs). Here, we performed a global profiling of differentially expressed miRNAs in bone-marrow-derived skeletal cells (BMSCs; also known as stromal or mesenchymal stem cells) during in vitro osteoblast differentiation. We functionally validated the regulatory effects of several miRNAs on osteoblast differentiation and identified 15 miRNAs, most significantly miR-222 and miR-423, as regulators of osteoblastogenesis. In addition, we tested the possible targeting of miRNAs for enhancing bone tissue regeneration. Scaffolds functionalized with miRNA nano-carriers enhanced osteoblastogenesis in 3D culture and retained this ability at least 2 weeks after storage. Additionally, anti-miR-222 enhanced in vivo ectopic bone formation through targeting the cell-cycle inhibitor CDKN1B (cyclin-dependent kinase inhibitor 1B). A number of additional miRNAs exerted additive osteoinductive effects on BMSC differentiation, suggesting that pools of miRNAs delivered locally from an implanted scaffold can provide a promising approach for enhanced bone regeneration.
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Affiliation(s)
- Chi-Chih Chang
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus 8000, Denmark
| | - Morten T Venø
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus 8000, Denmark; Interdisciplinary Nanoscience Center, Aarhus University, Aarhus 8000, Denmark
| | - Li Chen
- Department of Endocrinology and Metabolism, Endocrine Research Laboratory (KMEB), Odense University Hospital & University of Southern Denmark, Odense 5000, Denmark
| | - Nicholas Ditzel
- Department of Endocrinology and Metabolism, Endocrine Research Laboratory (KMEB), Odense University Hospital & University of Southern Denmark, Odense 5000, Denmark
| | - Dang Q S Le
- Department of Clinical Medicine, Aarhus University, Aarhus 8000, Denmark
| | - Philipp Dillschneider
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus 8000, Denmark; Interdisciplinary Nanoscience Center, Aarhus University, Aarhus 8000, Denmark; Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School, Hannover 30625, Germany
| | - Moustapha Kassem
- Department of Endocrinology and Metabolism, Endocrine Research Laboratory (KMEB), Odense University Hospital & University of Southern Denmark, Odense 5000, Denmark; The Danish Stem Cell Center (DanStem), University of Copenhagen, Copenhagen 2200, Denmark; Stem Cell Unit, Department of Anatomy, Faculty of Medicine, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia
| | - Jørgen Kjems
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus 8000, Denmark; Interdisciplinary Nanoscience Center, Aarhus University, Aarhus 8000, Denmark.
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27
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Prabha RD, Kraft DCE, Harkness L, Melsen B, Varma H, Nair PD, Kjems J, Kassem M. Bioactive nano‐fibrous scaffold for vascularized craniofacial bone regeneration. J Tissue Eng Regen Med 2017; 12:e1537-e1548. [DOI: 10.1002/term.2579] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Revised: 08/05/2017] [Accepted: 09/23/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Rahul Damodaran Prabha
- Department of Endocrinology and MetabolismUniversity Hospital of Odense Odense Denmark
- Interdisciplinary Nanoscience Center (iNANO)Aarhus University Aarhus Denmark
- Section of Orthodontics, Department of DentistryAarhus University Aarhus Denmark
| | | | - Linda Harkness
- Department of Endocrinology and MetabolismUniversity Hospital of Odense Odense Denmark
| | - Birte Melsen
- Section of Orthodontics, Department of DentistryAarhus University Aarhus Denmark
| | - Harikrishna Varma
- Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST) Thiruvananthapuram Kerala India
| | - Prabha D. Nair
- Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST) Thiruvananthapuram Kerala India
| | - Jorgen Kjems
- Interdisciplinary Nanoscience Center (iNANO)Aarhus University Aarhus Denmark
| | - Moustapha Kassem
- Department of Endocrinology and MetabolismUniversity Hospital of Odense Odense Denmark
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28
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Bermeo S, Al-Saedi A, Kassem M, Vidal C, Duque G. The Role of the Nuclear Envelope Protein MAN1 in Mesenchymal Stem Cell Differentiation. J Cell Biochem 2017; 118:4425-4435. [PMID: 28449239 DOI: 10.1002/jcb.26096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 04/26/2017] [Indexed: 01/09/2023]
Abstract
Mutations in MAN1, a protein of the nuclear envelope, cause bone phenotypes characterized by hyperostosis. The mechanism of this pro-osteogenic phenotype remains unknown. We increased and decreased MAN1 expression in mesenchymal stem cells (MSC) upon which standard osteogenic and adipogenic differentiation were performed. MAN1 knockdown increased osteogenesis and mineralization. In contrast, osteogenesis remained stable upon MAN1 overexpression. Regarding a mechanism, we found that low levels of MAN1 facilitated the nuclear accumulation of regulatory smads and smads-related complexes, with a concurrently high expression of nuclear β-Catenin. In addition, we found adipogenesis to be decreased in both conditions, although predominantly affected by MAN1 overexpression. Finally, lamin A, a protein of the nuclear envelope that regulates MSC differentiation, was unaffected by changes in MAN1. In conclusion, our studies demonstrated that lower levels of MAN1 in differentiating MSC are associated with higher osteogenesis and lower adipogenesis. High levels of MAN1 only affected adipogenesis. These effects could have an important role in the understanding of the role of the proteins of the nuclear envelope in bone formation. J. Cell. Biochem. 118: 4425-4435, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Sandra Bermeo
- Sydney Medical School Nepean, The University of Sydney, Penrith, NSW, Australia.,Facultad de Ciencias Básicas y Biomédicas, Universidad Simón Bolívar, Barranquilla, Colombia
| | - Ahmed Al-Saedi
- Australian Institute for Musculoskeletal Science (AIMSS), The University of Melbourne and Western Health, Melbourne, VIC, Australia.,Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, Melbourne, VIC, Australia
| | - Moustapha Kassem
- Department of Endocrinology and Metabolism, Odense University Hospital & University of Southern Denmark, J.B. Odense C, Denmark
| | - Christopher Vidal
- Sydney Medical School Nepean, The University of Sydney, Penrith, NSW, Australia
| | - Gustavo Duque
- Australian Institute for Musculoskeletal Science (AIMSS), The University of Melbourne and Western Health, Melbourne, VIC, Australia.,Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, Melbourne, VIC, Australia
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29
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Bradford EM, Ryu SH, Singh AP, Lee G, Goretsky T, Sinh P, Williams DB, Cloud AL, Gounaris E, Patel V, Lamping OF, Lynch EB, Moyer MP, De Plaen IG, Shealy DJ, Yang GY, Barrett TA. Epithelial TNF Receptor Signaling Promotes Mucosal Repair in Inflammatory Bowel Disease. THE JOURNAL OF IMMUNOLOGY 2017; 199:1886-1897. [PMID: 28747340 DOI: 10.4049/jimmunol.1601066] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 06/27/2017] [Indexed: 12/28/2022]
Abstract
TNF plays an integral role in inflammatory bowel disease (IBD), as evidenced by the dramatic therapeutic responses in Crohn's disease (CD) patients induced by chimeric anti-TNF mAbs. However, treatment of CD patients with etanercept, a decoy receptor that binds soluble TNF, fails to improve disease. To explore this discrepancy, we investigated the role of TNF signaling in Wnt/β-catenin-mediated intestinal stem cell and progenitor cell expansion in CD patients, human cells, and preclinical mouse models. We hypothesized that TNF exerts beneficial effects on intestinal epithelial cell (IEC) responses to injury. In CD patients, intestinal stem cell and progenitor cell Wnt/β-catenin signaling correlates with inflammation status. TNF-deficient (Tnf-/-) mice exhibited increased apoptosis, less IEC proliferation, and less Wnt signaling when stimulated with anti-CD3 mAb. Bone marrow (BM) chimera mice revealed that mucosal repair depended on TNF production by BM-derived cells and TNFR expression by radioresistant IECs. Wild-type→Tnfr1/2-/- BM chimera mice with chronic dextran sodium sulfate colitis exhibited delayed ulcer healing, more mucosal inflammation, and impaired Wnt/β-catenin signaling, consistent with the hypothesis that epithelial TNFR signaling participates in mucosal healing. The direct effect of TNF on stem cells was demonstrated by studies of TNF-induced Wnt/β-catenin target gene expression in murine enteroids and colonoid cultures and TNF-induced β-catenin activation in nontransformed human NCM460 cells (TOPFlash) and mice (TOP-GAL). Together, these data support the hypothesis that TNF plays a beneficial role in enhancing Wnt/β-catenin signaling during ulcer healing in IBD. These novel findings will inform clinicians and therapeutic chemists alike as they strive to develop novel therapies for IBD patients.
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Affiliation(s)
- Emily M Bradford
- Department of Internal Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL 60611.,Division of Gastroenterology, University of Kentucky, Lexington, KY 40536
| | - Stacy H Ryu
- Department of Internal Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL 60611.,Driskill Graduate Program in Life Sciences, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Ajay Pal Singh
- Department of Internal Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Goo Lee
- Department of Internal Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Tatiana Goretsky
- Department of Internal Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL 60611.,Division of Gastroenterology, University of Kentucky, Lexington, KY 40536
| | - Preetika Sinh
- Department of Internal Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - David B Williams
- Department of Internal Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Amber L Cloud
- Division of Gastroenterology, University of Kentucky, Lexington, KY 40536
| | - Elias Gounaris
- Department of Internal Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Vihang Patel
- Division of Gastroenterology, University of Kentucky, Lexington, KY 40536
| | - Olivia F Lamping
- Division of Gastroenterology, University of Kentucky, Lexington, KY 40536
| | - Evan B Lynch
- Division of Gastroenterology, University of Kentucky, Lexington, KY 40536
| | | | - Isabelle G De Plaen
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | | | - Guang-Yu Yang
- Department of Pathology, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Terrence A Barrett
- Department of Internal Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL 60611; .,Division of Gastroenterology, University of Kentucky, Lexington, KY 40536
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Twine NA, Harkness L, Kassem M, Wilkins MR. Transcription factor ZNF25 is associated with osteoblast differentiation of human skeletal stem cells. BMC Genomics 2016; 17:872. [PMID: 27814695 PMCID: PMC5097439 DOI: 10.1186/s12864-016-3214-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 10/26/2016] [Indexed: 12/29/2022] Open
Abstract
Background The differentiation of human bone marrow derived skeletal stem cells (known as human bone marrow stromal or mesenchymal stem cells, hMSCs) into osteoblasts involves the activation of a small number of well-described transcription factors. To identify additional osteoblastic transcription factors, we studied gene expression of hMSCs during ex vivo osteoblast differentiation. Results Clustering of gene expression, and literature investigation, revealed three transcription factors of interest – ZNF25, ZNF608 and ZBTB38. siRNA knockdown of ZNF25 resulted in significant suppression of alkaline phosphatase (ALP) activity. This effect was not present for ZNF608 and ZBTB38. To identify possible target genes of ZNF25, we analyzed gene expression following ZNF25 siRNA knockdown. This revealed a 23-fold upregulation of matrix metallopeptidase 1 and an 18-fold upregulation of leucine-rich repeat containing G protein-coupled receptor 5 and RAN-binding protein 3-like. We also observed enrichment in extracellular matrix organization, skeletal system development and regulation of ossification in the entire upregulated set of genes. Consistent with its function as a transcription factor during osteoblast differentiation of hMSC, we showed that the ZNF25 protein exhibits nuclear localization and is expressed in osteoblastic and osteocytic cells in vivo. ZNF25 is conserved in tetrapod vertebrates and contains a KRAB (Krueppel-associated box) transcriptional repressor domain. Conclusions This study shows that the uncharacterized transcription factor, ZNF25, is associated with differentiation of hMSC to osteoblasts.
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Affiliation(s)
- Natalie A Twine
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Linda Harkness
- Department of Endocrinology and Metabolism, Endocrine Research Laboratory (KMEB), Odense University Hospital, Odense, Denmark.,Present Address: Pluripotent Stem Cell Group, Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane, QLD, Australia
| | - Moustapha Kassem
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia.,Department of Endocrinology and Metabolism, Endocrine Research Laboratory (KMEB), Odense University Hospital, Odense, Denmark.,Stem Cell Unit, Department of Anatomy, Faculty of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Marc R Wilkins
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia.
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Morsing M, Klitgaard MC, Jafari A, Villadsen R, Kassem M, Petersen OW, Rønnov-Jessen L. Evidence of two distinct functionally specialized fibroblast lineages in breast stroma. Breast Cancer Res 2016; 18:108. [PMID: 27809866 PMCID: PMC5093959 DOI: 10.1186/s13058-016-0769-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 10/05/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The terminal duct lobular unit (TDLU) is the most dynamic structure in the human breast and the putative site of origin of human breast cancer. Although stromal cells contribute to a specialized microenvironment in many organs, this component remains largely understudied in the human breast. We here demonstrate the impact on epithelium of two lineages of breast stromal fibroblasts, one of which accumulates in the TDLU while the other resides outside the TDLU in the interlobular stroma. METHODS The two lineages are prospectively isolated by fluorescence activated cell sorting (FACS) based on different expression levels of CD105 and CD26. The characteristics of the two fibroblast lineages are assessed by immunocytochemical staining and gene expression analysis. The differentiation capacity of the two fibroblast populations is determined by exposure to specific differentiating conditions followed by analysis of adipogenic and osteogenic differentiation. To test whether the two fibroblast lineages are functionally imprinted by their site of origin, single cell sorted CD271low/MUC1high normal breast luminal epithelial cells are plated on fibroblast feeders for the observation of morphological development. Epithelial structure formation and polarization is shown by immunofluorescence and digitalized quantification of immunoperoxidase-stained cultures. RESULTS Lobular fibroblasts are CD105high/CD26low while interlobular fibroblasts are CD105low/CD26high. Once isolated the two lineages remain phenotypically stable and functionally distinct in culture. Lobular fibroblasts have properties in common with bone marrow derived mesenchymal stem cells and they specifically convey growth and branching morphogenesis of epithelial progenitors. CONCLUSIONS Two distinct functionally specialized fibroblast lineages exist in the normal human breast, of which the lobular fibroblasts have properties in common with mesenchymal stem cells and support epithelial growth and morphogenesis. We propose that lobular fibroblasts constitute a specialized microenvironment for human breast luminal epithelial progenitors, i.e. the putative precursors of breast cancer.
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Affiliation(s)
- Mikkel Morsing
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.,Danish Stem Cell Centre, University of Copenhagen, Copenhagen, Denmark
| | - Marie Christine Klitgaard
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.,Danish Stem Cell Centre, University of Copenhagen, Copenhagen, Denmark.,Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Abbas Jafari
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.,Danish Stem Cell Centre, University of Copenhagen, Copenhagen, Denmark
| | - René Villadsen
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.,Danish Stem Cell Centre, University of Copenhagen, Copenhagen, Denmark
| | - Moustapha Kassem
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.,Danish Stem Cell Centre, University of Copenhagen, Copenhagen, Denmark.,Laboratory of Molecular Endocrinology, KMEB, Department of Endocrinology, Odense University Hospital and University of Southern Denmark, Odense, Denmark
| | - Ole William Petersen
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.,Danish Stem Cell Centre, University of Copenhagen, Copenhagen, Denmark
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Wilhelm F, Böger C, Krüger S, Behrens HM, Röcken C. Troy is expressed in human stomach mucosa and a novel putative prognostic marker of intestinal type gastric cancer. Oncotarget 2016; 8:50557-50569. [PMID: 28881583 PMCID: PMC5584167 DOI: 10.18632/oncotarget.10672] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 06/01/2016] [Indexed: 02/07/2023] Open
Abstract
Epithelial stem cells of gastrointestinal tissues are characterized and controlled by an active Wnt signaling. Recently, the Wnt target gene Troy has been proposed as a neoplastic marker in the murine intestine. In this study, we explored the putative tumor biological significance of Troy in humans by using immunohistochemistry (104 cases), quantitative RT-PCR (50 cases) and cell culture experiments (MKN45, MKN74). In the non-neoplastic gastric mucosa, Troy was expressed by Muc5AC-positive foveolar epithelium, parietal cells, chief cells and cells of the intestinal metaplasia. In gastric cancer, Troy was found in the desmoplastic stroma and tumor cells. The overall staining intensity of the tumor cells was lower compared with the adjacent non-neoplastic mucosa, Troy was found significantly more commonly in intestinal compared with diffuse type gastric cancer (p=0.001) and correlated inversely with tumor grade (p<0.001) and nodal spread (p=0.025). In the intestinal type, loss of Troy-expression was associated with a significantly worse overall survival (p=0.006). Subsequent cell culture experiments showed a Wnt dependent expression of Troy and a reduced colony formation ability of Troy-overexpressing MKN45-cells. Our results lead to the conjecture that Troy is also a negative regulator of WNT signaling in gastric cancer, which affects patient outcome.
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Affiliation(s)
- Franziska Wilhelm
- Department of Pathology, Christian-Albrechts-University, Kiel, Germany
| | - Christine Böger
- Department of Pathology, Christian-Albrechts-University, Kiel, Germany
| | - Sandra Krüger
- Department of Pathology, Christian-Albrechts-University, Kiel, Germany
| | | | - Christoph Röcken
- Department of Pathology, Christian-Albrechts-University, Kiel, Germany
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Ali D, Hamam R, Alfayez M, Kassem M, Aldahmash A, Alajez NM. Epigenetic Library Screen Identifies Abexinostat as Novel Regulator of Adipocytic and Osteoblastic Differentiation of Human Skeletal (Mesenchymal) Stem Cells. Stem Cells Transl Med 2016; 5:1036-47. [PMID: 27194745 DOI: 10.5966/sctm.2015-0331] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 03/10/2016] [Indexed: 11/16/2022] Open
Abstract
UNLABELLED : The epigenetic mechanisms promoting lineage-specific commitment of human skeletal (mesenchymal or stromal) stem cells (hMSCs) into adipocytes or osteoblasts are still not fully understood. Herein, we performed an epigenetic library functional screen and identified several novel compounds, including abexinostat, which promoted adipocytic and osteoblastic differentiation of hMSCs. Using gene expression microarrays, chromatin immunoprecipitation for H3K9Ac combined with high-throughput DNA sequencing (ChIP-seq), and bioinformatics, we identified several key genes involved in regulating stem cell proliferation and differentiation that were targeted by abexinostat. Concordantly, ChIP-quantitative polymerase chain reaction revealed marked increase in H3K9Ac epigenetic mark on the promoter region of AdipoQ, FABP4, PPARγ, KLF15, CEBPA, SP7, and ALPL in abexinostat-treated hMSCs. Pharmacological inhibition of focal adhesion kinase (PF-573228) or insulin-like growth factor-1R/insulin receptor (NVP-AEW51) signaling exhibited significant inhibition of abexinostat-mediated adipocytic differentiation, whereas inhibition of WNT (XAV939) or transforming growth factor-β (SB505124) signaling abrogated abexinostat-mediated osteogenic differentiation of hMSCs. Our findings provide insight into the understanding of the relationship between the epigenetic effect of histone deacetylase inhibitors, transcription factors, and differentiation pathways governing adipocyte and osteoblast differentiation. Manipulating such pathways allows a novel use for epigenetic compounds in hMSC-based therapies and tissue engineering. SIGNIFICANCE This unbiased epigenetic library functional screen identified several novel compounds, including abexinostat, that promoted adipocytic and osteoblastic differentiation of human skeletal (mesenchymal or stromal) stem cells (hMSCs). These data provide new insight into the understanding of the relationship between the epigenetic effect of histone deacetylase inhibitors, transcription factors, and differentiation pathways controlling adipocyte and osteoblast differentiation of hMSCs. Manipulating such pathways allows a novel use for epigenetic compounds in hMSC-based therapies for tissue engineering, bone disease, obesity, and metabolic-disorders.
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Affiliation(s)
- Dalia Ali
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Rimi Hamam
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Musaed Alfayez
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Moustapha Kassem
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia Molecular Endocrinology and Stem Cell Research Unit, Department of Endocrinology, University of Southern Denmark, Odense, Denmark
| | - Abdullah Aldahmash
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia Prince Naif Health Research Center, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Nehad M Alajez
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia
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34
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Transcription Factor Information System (TFIS): A Tool for Detection of Transcription Factor Binding Sites. Interdiscip Sci 2016; 9:378-391. [DOI: 10.1007/s12539-016-0168-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 02/16/2016] [Accepted: 03/29/2016] [Indexed: 12/19/2022]
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Canal F, Anthony E, Lescure A, Del Nery E, Camonis J, Perez F, Ragazzon B, Perret C. A kinome siRNA screen identifies HGS as a potential target for liver cancers with oncogenic mutations in CTNNB1. BMC Cancer 2015; 15:1020. [PMID: 26715116 PMCID: PMC4696130 DOI: 10.1186/s12885-015-2037-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 12/20/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Aberrant activation of the Wnt/β-catenin pathway is a major and frequent event in liver cancer, but inhibition of oncogenic β-catenin signaling has proven challenging. The identification of genes that are synthetically lethal in β-catenin-activated cancer cells would provide new targets for therapeutic drug design. METHODS We transfected the parental HuH6 hepatoblastoma cell line with a doxycycline-inducible shRNA against CTNNB1 (gene coding for β-catenin) to obtain an isogenic cell line pair with or without aberrant β-catenin signaling. Using this hepatoblastoma isogenic cell line pair, we performed a human kinome-wide siRNA screen to identify synthetic lethal interactions with oncogenic CTNNB1. The phenotypic readouts of the screen were cell proliferation, cell cycle arrest and apoptosis, which were assessed by image-based analysis. In addition, apoptosis was assessed by flow cytometric experiments and immunoblotting. The potential synthetic lethal relationship between candidates genes identified in the screen and oncogenic CTNNB1 was also investigated in a different cellular context, a colorectal HCT116 isogenic cell line pair. RESULTS We first determined the experimental conditions that led to the efficient expression of shRNA against CTNNB1 and maximal reduction of β-catenin signaling activity in response to doxycycline treatment. Following high throughput screening in which 687 genes coding for kinases and proteins related to kinases (such as pseudokinases and phosphatases) were targeted, we identified 52 genes required for HuH6 survival. The silencing of five of these genes selectively impaired the viability of HuH6 cells with high β-catenin signaling: HGS, STRADA, FES, BRAF and PKMYT1. Among these candidates, HGS depletion had the strongest inhibitory effect on cell growth and led to apoptosis specifically in HuH6 with high β-catenin activity, while HuH6 with low β-catenin activity were spared. In addition, HGS was identified as a potential synthetic lethal partner of oncogenic CTNNB1 in the HCT116 colorectal isogenic cell line pair. CONCLUSIONS These results demonstrate the existence of crosstalk between β-catenin signaling and HGS. Importantly, HGS depletion specifically affected cells with uncontrolled β-catenin signaling activity in two different types of cancer (Hepatoblastoma HuH6 and colorectal HCT116), and thus may represent a new potential target for novel therapeutic strategies in liver and colorectal cancer.
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Affiliation(s)
- Frédéric Canal
- Department Development, Reproduction and Cancer, INSERM U1016, Institut Cochin, 24, rue du Faubourg Saint-Jacques, 75014, Paris, France. .,CNRS UMR8104, Paris, France. .,Université Paris Descartes, Sorbonne, Paris Cité, France. .,Equipe labellisée Ligue Nationale Contre le Cancer, Paris, France. .,Laboratoire de Génétique et Biologie Cellulaire, Université de Versailles St-Quentin en Yvelines, Montigny le Bretonneux, France.
| | - Elodie Anthony
- Department of Translational Research, the Biophenics High-Content Screening Laboratory, Institut Curie, PSL Research University, Paris, France.
| | - Aurianne Lescure
- Department of Translational Research, the Biophenics High-Content Screening Laboratory, Institut Curie, PSL Research University, Paris, France.
| | - Elaine Del Nery
- Department of Translational Research, the Biophenics High-Content Screening Laboratory, Institut Curie, PSL Research University, Paris, France.
| | - Jacques Camonis
- Department of Translational Research, the Biophenics High-Content Screening Laboratory, Institut Curie, PSL Research University, Paris, France.
| | - Franck Perez
- Department of Translational Research, the Biophenics High-Content Screening Laboratory, Institut Curie, PSL Research University, Paris, France.
| | - Bruno Ragazzon
- Department Development, Reproduction and Cancer, INSERM U1016, Institut Cochin, 24, rue du Faubourg Saint-Jacques, 75014, Paris, France. .,CNRS UMR8104, Paris, France. .,Université Paris Descartes, Sorbonne, Paris Cité, France.
| | - Christine Perret
- Department Development, Reproduction and Cancer, INSERM U1016, Institut Cochin, 24, rue du Faubourg Saint-Jacques, 75014, Paris, France. .,CNRS UMR8104, Paris, France. .,Université Paris Descartes, Sorbonne, Paris Cité, France. .,Equipe labellisée Ligue Nationale Contre le Cancer, Paris, France.
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Abdallah BM, Ditzel N, Laborda J, Karsenty G, Kassem M. DLK1 Regulates Whole-Body Glucose Metabolism: A Negative Feedback Regulation of the Osteocalcin-Insulin Loop. Diabetes 2015; 64:3069-80. [PMID: 25918236 DOI: 10.2337/db14-1642] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 04/21/2015] [Indexed: 11/13/2022]
Abstract
The endocrine role of the skeleton in regulating energy metabolism is supported by a feed-forward loop between circulating osteoblast (OB)-derived undercarboxylated osteocalcin (Glu-OCN) and pancreatic β-cell insulin; in turn, insulin favors osteocalcin (OCN) bioactivity. These data suggest the existence of a negative regulation of this cross talk between OCN and insulin. Recently, we identified delta like-1 (DLK1) as an endocrine regulator of bone turnover. Because DLK1 is colocalized with insulin in pancreatic β-cells, we examined the role of DLK1 in insulin signaling in OBs and energy metabolism. We show that Glu-OCN specifically stimulates Dlk1 expression by the pancreas. Conversely, Dlk1-deficient (Dlk1(-/-) ) mice exhibited increased circulating Glu-OCN levels and increased insulin sensitivity, whereas mice overexpressing Dlk1 in OB displayed reduced insulin secretion and sensitivity due to impaired insulin signaling in OB and lowered Glu-OCN serum levels. Furthermore, Dlk1(-/-) mice treated with Glu-OC experienced significantly lower blood glucose levels than Glu-OCN-treated wild-type mice. The data suggest that Glu-OCN-controlled production of DLK1 by pancreatic β-cells acts as a negative feedback mechanism to counteract the stimulatory effects of insulin on OB production of Glu-OCN, a potential mechanism preventing OCN-induced hypoglycemia.
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Affiliation(s)
- Basem M Abdallah
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital and University of Southern Denmark, Odense, Denmark
| | - Nicholas Ditzel
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital and University of Southern Denmark, Odense, Denmark
| | - Jorge Laborda
- Department of Inorganic and Organic Chemistry and Biochemistry, University of Castilla-La Mancha Medical School, Albacete, Spain
| | - Gerard Karsenty
- Department of Genetics and Development, College of Physicians and Surgeons, Columbia University, New York, NY
| | - Moustapha Kassem
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital and University of Southern Denmark, Odense, Denmark DanStem (Danish Stem Cell Center), Panum Institute, University of Copenhagen, Copenhagen, Denmark Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia
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Saeed H, Qiu W, Li C, Flyvbjerg A, Abdallah BM, Kassem M. Telomerase activity promotes osteoblast differentiation by modulating IGF-signaling pathway. Biogerontology 2015; 16:733-45. [PMID: 26260615 PMCID: PMC4602053 DOI: 10.1007/s10522-015-9596-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 07/27/2015] [Indexed: 12/15/2022]
Abstract
The contribution of deficient telomerase activity to age-related decline in osteoblast functions and bone formation is poorly studied. We have previously demonstrated that telomerase over-expression led to enhanced osteoblast differentiation of human bone marrow skeletal (stromal) stem cells (hMSC) in vitro and in vivo. Here, we investigated the signaling pathways underlying the regulatory functions of telomerase in osteoblastic cells. Comparative microarray analysis and Western blot analysis of telomerase-over expressing hMSC (hMSC-TERT) versus primary hMSC revealed significant up-regulation of several components of insulin-like growth factor (IGF) signaling. Specifically, a significant increase in IGF-induced AKT phosphorylation and alkaline phosphatase (ALP) activity were observed in hMSC-TERT. Enhanced ALP activity was reduced in presence of IGF1 receptor inhibitor: picropodophyllin. In addition, telomerase deficiency caused significant reduction in IGF signaling proteins in osteoblastic cells cultured from telomerase deficient mice (Terc(-/-)). The low bone mass exhibited by Terc(-/-) mice was associated with significant reduction in serum levels of IGF1 and IGFBP3 as well as reduced skeletal mRNA expression of Igf1, Igf2, Igf2r, Igfbp5 and Igfbp6. IGF1-induced osteoblast differentiation was also impaired in Terc(-/-) MSC. In conclusion, our data demonstrate that impaired IGF/AKT signaling contributes to the observed decreased bone mass and bone formation exhibited by telomerase deficient osteoblastic cells.
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Affiliation(s)
- Hamid Saeed
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology and Metabolism, Medical Biotechnology Center, Odense University Hospital & University of Southern Denmark, SDU, 5000, Odense C, Denmark. .,University College of Pharmacy, Punjab University, Allama Iqbal Campus, Lahore, 54000, Pakistan.
| | - Weimin Qiu
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology and Metabolism, Medical Biotechnology Center, Odense University Hospital & University of Southern Denmark, SDU, 5000, Odense C, Denmark.
| | - Chen Li
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology and Metabolism, Medical Biotechnology Center, Odense University Hospital & University of Southern Denmark, SDU, 5000, Odense C, Denmark.
| | - Allan Flyvbjerg
- Department of Endcrinology, University Hosptial of Aarhus, 8000, Aarhus C, Denmark.
| | - Basem M Abdallah
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology and Metabolism, Medical Biotechnology Center, Odense University Hospital & University of Southern Denmark, SDU, 5000, Odense C, Denmark. .,Faculty of Scince, Helwan University, Cairo, Egypt.
| | - Moustapha Kassem
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology and Metabolism, Medical Biotechnology Center, Odense University Hospital & University of Southern Denmark, SDU, 5000, Odense C, Denmark. .,Stem Cell Unit, King Saud University, Riyadh, Saudi Arabia.
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Harkness L, Twine NA, Abu Dawud R, Jafari A, Aldahmash A, Wilkins MR, Adjaye J, Kassem M. Molecular characterisation of stromal populations derived from human embryonic stem cells: Similarities to immortalised bone marrow derived stromal stem cells. Bone Rep 2015; 3:32-39. [PMID: 28377964 PMCID: PMC5365211 DOI: 10.1016/j.bonr.2015.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 06/30/2015] [Accepted: 07/14/2015] [Indexed: 01/22/2023] Open
Abstract
Human bone marrow-derived stromal (skeletal) stem cells (BM-hMSC) are being employed in an increasing number of clinical trials for tissue regeneration. A limiting factor for their clinical use is the inability to obtain sufficient cell numbers. Human embryonic stem cells (hESC) can provide an unlimited source of clinical grade cells for therapy. We have generated MSC-like cells from hESC (called here hESC-stromal) that exhibit surface markers and differentiate to osteoblasts and adipocytes, similar to BM-hMSC. In the present study, we used microarray analysis to compare the molecular phenotype of hESC-stromal and immortalised BM-hMSC cells (hMSC-TERT). Of the 7379 genes expressed above baseline, only 9.3% of genes were differentially expressed between undifferentiated hESC-stromal and BM-hMSC. Following ex vivo osteoblast induction, 665 and 695 genes exhibited ≥ 2-fold change (FC) in hESC-stromal and BM-hMSC, respectively with 172 genes common to both cell types. Functional annotation of significantly changing genes revealed similarities in gene ontology between the two cell types. Interestingly, genes in categories of cell adhesion/motility and epithelial–mesenchymal transition (EMT) were highly enriched in hESC-stromal whereas genes associated with cell cycle processes were enriched in hMSC-TERT. This data suggests that while hESC-stromal cells exhibit a similar molecular phenotype to hMSC-TERT, differences exist that can be explained by ontological differences between these two cell types. hESC-stromal cells can thus be considered as a possible alternative candidate cells for hMSC, to be employed in regenerative medicine protocols. hESC-derived MSC-like cells were compared to immortalised BM-MSC. Comparison was performed using microarrays on non-induced and OB induced cells. Analysis demonstrated close hierarchical relationships and molecular phenotypes. 90.7% of genes were similarly expressed in non-induced cells. 73% of OB induced genes for both cell lines correlated with GO ontology analysis.
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Affiliation(s)
- Linda Harkness
- Molecular Endocrinology Laboratory, Odense University Hospital, University of Southern Denmark, Odense, Denmark
| | - Natalie A Twine
- Molecular Endocrinology Laboratory, Odense University Hospital, University of Southern Denmark, Odense, Denmark; NSW Systems Biology Initiative, University of New South Wales, Sydney, NSW, Australia
| | - Raed Abu Dawud
- Molecular Embryology and Aging group, Max-Planck Institute for Molecular Genetics (Department of Vertebrate Genomics), Berlin, Germany; Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia; Berlin-Brandenburg Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Berlin, Germany
| | - Abbas Jafari
- Molecular Endocrinology Laboratory, Odense University Hospital, University of Southern Denmark, Odense, Denmark; Danish Stem Cell Centre (DanStem), Institute of Cellular and Molecular Medicine, University of Copenhagen, Denmark
| | - Abdullah Aldahmash
- Molecular Endocrinology Laboratory, Odense University Hospital, University of Southern Denmark, Odense, Denmark; Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Marc R Wilkins
- NSW Systems Biology Initiative, University of New South Wales, Sydney, NSW, Australia
| | - James Adjaye
- Molecular Embryology and Aging group, Max-Planck Institute for Molecular Genetics (Department of Vertebrate Genomics), Berlin, Germany; Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia; Institute for Stem Cell Research and Regenerative Medicine, Faculty of Medicine, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Moustapha Kassem
- Molecular Endocrinology Laboratory, Odense University Hospital, University of Southern Denmark, Odense, Denmark; Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia; Danish Stem Cell Centre (DanStem), Institute of Cellular and Molecular Medicine, University of Copenhagen, Denmark
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Jafari A, Siersbaek MS, Chen L, Qanie D, Zaher W, Abdallah BM, Kassem M. Pharmacological Inhibition of Protein Kinase G1 Enhances Bone Formation by Human Skeletal Stem Cells Through Activation of RhoA-Akt Signaling. Stem Cells 2015; 33:2219-31. [DOI: 10.1002/stem.2013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 02/13/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Abbas Jafari
- Department of Endocrinology and Metabolism, Endocrine Research Laboratory (KMEB); Odense University Hospital & University of Southern Denmark; Odense Denmark
- Danish Stem Cell Center (DanStem); Institute of Cellular and Molecular Medicine, University of Copenhagen; Copenhagen Denmark
| | - Majken S. Siersbaek
- Department of Endocrinology and Metabolism, Endocrine Research Laboratory (KMEB); Odense University Hospital & University of Southern Denmark; Odense Denmark
- Danish Stem Cell Center (DanStem); Institute of Cellular and Molecular Medicine, University of Copenhagen; Copenhagen Denmark
| | - Li Chen
- Department of Endocrinology and Metabolism, Endocrine Research Laboratory (KMEB); Odense University Hospital & University of Southern Denmark; Odense Denmark
| | - Diyako Qanie
- Department of Endocrinology and Metabolism, Endocrine Research Laboratory (KMEB); Odense University Hospital & University of Southern Denmark; Odense Denmark
| | - Walid Zaher
- Department of Endocrinology and Metabolism, Endocrine Research Laboratory (KMEB); Odense University Hospital & University of Southern Denmark; Odense Denmark
| | - Basem M. Abdallah
- Department of Endocrinology and Metabolism, Endocrine Research Laboratory (KMEB); Odense University Hospital & University of Southern Denmark; Odense Denmark
| | - Moustapha Kassem
- Department of Endocrinology and Metabolism, Endocrine Research Laboratory (KMEB); Odense University Hospital & University of Southern Denmark; Odense Denmark
- Danish Stem Cell Center (DanStem); Institute of Cellular and Molecular Medicine, University of Copenhagen; Copenhagen Denmark
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Abdallah BM, Jafari A, Zaher W, Qiu W, Kassem M. Skeletal (stromal) stem cells: an update on intracellular signaling pathways controlling osteoblast differentiation. Bone 2015; 70:28-36. [PMID: 25138551 DOI: 10.1016/j.bone.2014.07.028] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 07/22/2014] [Accepted: 07/24/2014] [Indexed: 01/06/2023]
Abstract
Skeletal (marrow stromal) stem cells (BMSCs) are a group of multipotent cells that reside in the bone marrow stroma and can differentiate into osteoblasts, chondrocytes and adipocytes. Studying signaling pathways that regulate BMSC differentiation into osteoblastic cells is a strategy for identifying druggable targets for enhancing bone formation. This review will discuss the functions and the molecular mechanisms of action on osteoblast differentiation and bone formation; of a number of recently identified regulatory molecules: the non-canonical Notch signaling molecule Delta-like 1/preadipocyte factor 1 (Dlk1/Pref-1), the Wnt co-receptor Lrp5 and intracellular kinases. This article is part of a Special Issue entitled: Stem Cells and Bone.
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Affiliation(s)
- Basem M Abdallah
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital & University of Southern Denmark, Odense, Denmark
| | - Abbas Jafari
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital & University of Southern Denmark, Odense, Denmark; DanStem (Danish Stem Cell Center), Panum Institute, University of Copenhagen, Copenhagen, Denmark
| | - Walid Zaher
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital & University of Southern Denmark, Odense, Denmark; Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Saudi Arabia
| | - Weimin Qiu
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital & University of Southern Denmark, Odense, Denmark
| | - Moustapha Kassem
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital & University of Southern Denmark, Odense, Denmark; DanStem (Danish Stem Cell Center), Panum Institute, University of Copenhagen, Copenhagen, Denmark; Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Saudi Arabia.
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Walczak EM, Kuick R, Finco I, Bohin N, Hrycaj SM, Wellik DM, Hammer GD. Wnt signaling inhibits adrenal steroidogenesis by cell-autonomous and non-cell-autonomous mechanisms. Mol Endocrinol 2014; 28:1471-86. [PMID: 25029241 DOI: 10.1210/me.2014-1060] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Wnt/β-catenin (βcat) signaling is critical for adrenal homeostasis. To elucidate how Wnt/βcat signaling elicits homeostatic maintenance of the adrenal cortex, we characterized the identity of the adrenocortical Wnt-responsive population. We find that Wnt-responsive cells consist of sonic hedgehog (Shh)-producing adrenocortical progenitors and differentiated, steroidogenic cells of the zona glomerulosa, but not the zona fasciculata and rarely cells that are actively proliferating. To determine potential direct inhibitory effects of βcat signaling on zona fasciculata-associated steroidogenesis, we used the mouse ATCL7 adrenocortical cell line that serves as a model system of glucocorticoid-producing fasciculata cells. Stimulation of βcat signaling caused decreased corticosterone release consistent with the observed reduced transcription of steroidogenic genes Cyp11a1, Cyp11b1, Star, and Mc2r. Decreased steroidogenic gene expression was correlated with diminished steroidogenic factor 1 (Sf1; Nr5a1) expression and occupancy on steroidogenic promoters. Additionally, βcat signaling suppressed the ability of Sf1 to transactivate steroidogenic promoters independent of changes in Sf1 expression level. To investigate Sf1-independent effects of βcat on steroidogenesis, we used Affymetrix gene expression profiling of Wnt-responsive cells in vivo and in vitro. One candidate gene identified, Ccdc80, encodes a secreted protein with unknown signaling mechanisms. We report that Ccdc80 is a novel βcat-regulated gene in adrenocortical cells. Treatment of adrenocortical cells with media containing secreted Ccdc80 partially phenocopies βcat-induced suppression of steroidogenesis, albeit through an Sf1-independent mechanism. This study reveals multiple mechanisms of βcat-mediated suppression of steroidogenesis and suggests that Wnt/βcat signaling may regulate adrenal homeostasis by inhibiting fasciculata differentiation and promoting the undifferentiated state of progenitor cells.
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Affiliation(s)
- Elisabeth M Walczak
- Cellular and Molecular Biology Graduate Program (E.M.W., G.D.H.) and Program in Biomedical Sciences (N.B.), University of Michigan Medical School; Center for Cancer Biostatistics (R.K.), Department of Biostatistics, University of Michigan School of Public Health; Department of Internal Medicine (I.F., G.D.H.), Division of Metabolism, Endocrinology and Diabetes; Department of Internal Medicine (S.M.H., D.M.W.), Division of Molecular Medicine and Genetics; and Endocrine Oncology Program (G.D.H.), Comprehensive Cancer Center, University of Michigan, Ann Arbor, Michigan 48109
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miR-141-3p inhibits human stromal (mesenchymal) stem cell proliferation and differentiation. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2014; 1843:2114-21. [PMID: 24937190 DOI: 10.1016/j.bbamcr.2014.06.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 06/06/2014] [Accepted: 06/09/2014] [Indexed: 02/07/2023]
Abstract
Wnt signaling determines human stromal (mesenchymal) stem cell (hMSC) differentiation fate into the osteoblast or adipocyte lineage. microRNAs (miRNAs) are small RNA molecules of 21-25 nucleotides that regulate many aspects of osteoblast biology. Thus, we examined miRNAs regulated by Wnt signaling in hMSC. We identified miRNA (miR)-141-3p as a Wnt target which in turn inhibited Wnt signaling. Moreover, miR-141-3p inhibited hMSC proliferation by arresting cells at the G1 phase of the cell cycle. miR-141-3p inhibited osteoblast differentiation of hMSC as evidenced by reduced alkaline phosphatase activity, gene expression and in vitro mineralized matrix formation. Bioinformatic studies, Western blot analysis and 3'UTR reporter assay demonstrated that cell division cycle 25A (CDC25A) is a direct target of miR-141-3p. siRNA-mediated knock-down of CDC25A inhibited hMSC proliferation and osteoblast differentiation. In summary, miR-141-3p acts as a negative regulator of hMSC proliferation and osteoblast differentiation. Targeting miR-141-3p could be used as an anabolic therapy of low bone mass diseases, e.g. osteoporosis.
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Schön S, Flierman I, Ofner A, Stahringer A, Holdt LM, Kolligs FT, Herbst A. β-catenin regulates NF-κB activityviaTNFRSF19 in colorectal cancer cells. Int J Cancer 2014; 135:1800-11. [DOI: 10.1002/ijc.28839] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 02/26/2014] [Indexed: 12/19/2022]
Affiliation(s)
- Simon Schön
- Department of Medicine II; University of Munich; Munich Germany
| | | | - Andrea Ofner
- Department of Medicine II; University of Munich; Munich Germany
| | - Anika Stahringer
- Institute of Laboratory Medicine; University of Munich; Munich Germany
| | | | | | - Andreas Herbst
- Department of Medicine II; University of Munich; Munich Germany
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Wu H, Whitfield TW, Gordon JAR, Dobson JR, Tai PWL, van Wijnen AJ, Stein JL, Stein GS, Lian JB. Genomic occupancy of Runx2 with global expression profiling identifies a novel dimension to control of osteoblastogenesis. Genome Biol 2014; 15:R52. [PMID: 24655370 PMCID: PMC4056528 DOI: 10.1186/gb-2014-15-3-r52] [Citation(s) in RCA: 109] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Accepted: 03/21/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Osteogenesis is a highly regulated developmental process and continues during the turnover and repair of mature bone. Runx2, the master regulator of osteoblastogenesis, directs a transcriptional program essential for bone formation through genetic and epigenetic mechanisms. While individual Runx2 gene targets have been identified, further insights into the broad spectrum of Runx2 functions required for osteogenesis are needed. RESULTS By performing genome-wide characterization of Runx2 binding at the three major stages of osteoblast differentiation--proliferation, matrix deposition and mineralization--we identify Runx2-dependent regulatory networks driving bone formation. Using chromatin immunoprecipitation followed by high-throughput sequencing over the course of these stages, we identify approximately 80,000 significantly enriched regions of Runx2 binding throughout the mouse genome. These binding events exhibit distinct patterns during osteogenesis, and are associated with proximal promoters and also non-promoter regions: upstream, introns, exons, transcription termination site regions, and intergenic regions. These peaks were partitioned into clusters that are associated with genes in complex biological processes that support bone formation. Using Affymetrix expression profiling of differentiating osteoblasts depleted of Runx2, we identify novel Runx2 targets including Ezh2, a critical epigenetic regulator; Crabp2, a retinoic acid signaling component; Adamts4 and Tnfrsf19, two remodelers of the extracellular matrix. We demonstrate by luciferase assays that these novel biological targets are regulated by Runx2 occupancy at non-promoter regions. CONCLUSIONS Our data establish that Runx2 interactions with chromatin across the genome reveal novel genes, pathways and transcriptional mechanisms that contribute to the regulation of osteoblastogenesis.
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Hu W, Ye Y, Zhang W, Wang J, Chen A, Guo F. miR‑142‑3p promotes osteoblast differentiation by modulating Wnt signaling. Mol Med Rep 2012; 7:689-93. [PMID: 23229013 DOI: 10.3892/mmr.2012.1207] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2012] [Accepted: 11/22/2012] [Indexed: 11/05/2022] Open
Abstract
Canonical Wnt signaling is critical for the control of osteoblast differentiation in human mesenchymal stem cells. MicroRNAs (miRs) are essential regulators of cell differentiation by post‑transcriptional regulation of target gene expression. The aim of the present study was to investigate the molecular mechanism by which miR‑142‑3p promotes osteoblastic differentiation using the human fetal osteoblastic 1.19 (hFOB1.19), real-time PCR and western blot analysis. Results showed an increased expression of miR‑142‑3p during osteoblast differentiation in the mesenchymal precursor cell line, hFOB1.19. In addition, the ectopic over-expression of miR‑142‑3p promoted hFOB1.19 differentiation, whereas the inhibition of miR‑142‑3p repressed differentiation. The expression of miR‑142‑3p was positively correlated with β‑catenin, an important protein in Wnt signaling. The adenomatous polyposis coli (APC) gene was a direct target of miR‑142‑3p, whereby miR‑142‑3p promoted Wnt signaling through inhibition of APC, leading to accumulation and nuclear translocation of β‑catenin. Therefore, miR‑142‑3p may be an essential mediator of osteoblast differentiation and a new therapeutic strategy for osteogenesis disorders.
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Affiliation(s)
- Weihua Hu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
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Integrated analysis of microRNA expression and mRNA transcriptome in lungs of avian influenza virus infected broilers. BMC Genomics 2012; 13:278. [PMID: 22726614 PMCID: PMC3496578 DOI: 10.1186/1471-2164-13-278] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Accepted: 06/12/2012] [Indexed: 01/06/2023] Open
Abstract
Background Avian influenza virus (AIV) outbreaks are worldwide threats to both poultry and humans. Our previous study suggested microRNAs (miRNAs) play significant roles in the regulation of host response to AIV infection in layer chickens. The objective of this study was to test the hypothesis if genetic background play essential role in the miRNA regulation of AIV infection in chickens and if miRNAs that were differentially expressed in layer with AIV infection would be modulated the same way in broiler chickens. Furthermore, by integrating with parallel mRNA expression profiling, potential molecular mechanisms of host response to AIV infection can be further exploited. Results Total RNA isolated from the lungs of non-infected and low pathogenic H5N3 infected broilers at four days post-infection were used for both miRNA deep sequencing and mRNA microarray analyses. A total of 2.6 M and 3.3 M filtered high quality reads were obtained from infected and non-infected chickens by Solexa GA-I Sequencer, respectively. A total of 271 miRNAs in miRBase 16.0 were identified and one potential novel miRNA was discovered. There were 121 miRNAs differentially expressed at the 5% false discovery rate by Fisher’s exact test. More miRNAs were highly expressed in infected lungs (108) than in non-infected lungs (13), which was opposite to the findings in layer chickens. This result suggested that a different regulatory mechanism of host response to AIV infection mediated by miRNAs might exist in broiler chickens. Analysis using the chicken 44 K Agilent microarray indicated that 508 mRNAs (347 down-regulated) were differentially expressed following AIV infection. Conclusions A comprehensive analysis combining both miRNA and targeted mRNA gene expression suggests that gga-miR-34a, 122–1, 122–2, 146a, 155, 206, 1719, 1594, 1599 and 451, and MX1, IL-8, IRF-7, TNFRS19 are strong candidate miRNAs or genes involved in regulating the host response to AIV infection in the lungs of broiler chickens. Further miRNA or gene specific knock-down assay is warranted to elucidate underlying mechanism of AIV infection regulation in the chicken.
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Jacobs VL, Liu Y, De Leo JA. Propentofylline targets TROY, a novel microglial signaling pathway. PLoS One 2012; 7:e37955. [PMID: 22649568 PMCID: PMC3359343 DOI: 10.1371/journal.pone.0037955] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 04/30/2012] [Indexed: 11/19/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most common and aggressive primary brain cancer, with a median survival of less than 2 years after diagnosis with current available therapies. The tumor microenvironment serves a critical role in tumor invasion and progression, with microglia as a critical player. Our laboratory has previously demonstrated that propentofylline, an atypical methylxanthine with central nervous system glial modulating and anti-inflammatory actions, significantly decreases tumor growth in a GBM rodent model by preferentially targeting microglia. In the present study, we used the CNS-1 rat glioma model to elucidate the mechanisms of propentofylline. Here we demonstrate that propentofylline targets TROY, a novel signaling molecule up-regulated in infiltrating microglia, and not macrophages, in response to CNS-1 cells. We identify Pyk2, Rac1 and pJNK as the downstream signaling molecules of TROY through western blot analysis and siRNA transfection. We demonstrate that inhibition of TROY expression in microglia by siRNA transfection significantly inhibits microglial migration towards CNS-1 cells similar to 10 µM propentofylline treatment. These results identify TROY as a novel molecule expressed in microglia, involved in their migration and targeted by propentofylline. Furthermore, these results describe a signaling molecule that is differentially expressed between microglia and macrophages in the tumor microenvironment.
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Affiliation(s)
- Valerie L. Jacobs
- Department of Pharmacology and Toxicology, Dartmouth Medical School, Hanover, New Hampshire, United States of America
- Neuroscience Center at Dartmouth, Lebanon, New Hampshire, United States of America
| | - Yingna Liu
- Department of Pharmacology and Toxicology, Dartmouth Medical School, Hanover, New Hampshire, United States of America
| | - Joyce A. De Leo
- Department of Pharmacology and Toxicology, Dartmouth Medical School, Hanover, New Hampshire, United States of America
- Neuroscience Center at Dartmouth, Lebanon, New Hampshire, United States of America
- Emmanuel College, Boston, Massachusetts, United States of America
- * E-mail:
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Tam SJ, Richmond DL, Kaminker JS, Modrusan Z, Martin-McNulty B, Cao TC, Weimer RM, Carano RAD, van Bruggen N, Watts RJ. Death receptors DR6 and TROY regulate brain vascular development. Dev Cell 2012; 22:403-17. [PMID: 22340501 DOI: 10.1016/j.devcel.2011.11.018] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Revised: 10/07/2011] [Accepted: 11/14/2011] [Indexed: 10/28/2022]
Abstract
Signaling events that regulate central nervous system (CNS) angiogenesis and blood-brain barrier (BBB) formation are only beginning to be elucidated. By evaluating the gene expression profile of mouse vasculature, we identified DR6/TNFRSF21 and TROY/TNFRSF19 as regulators of CNS-specific angiogenesis in both zebrafish and mice. Furthermore, these two death receptors interact both genetically and physically and are required for vascular endothelial growth factor (VEGF)-mediated JNK activation and subsequent human brain endothelial sprouting in vitro. Increasing beta-catenin levels in brain endothelium upregulate DR6 and TROY, indicating that these death receptors are downstream target genes of Wnt/beta-catenin signaling, which has been shown to be required for BBB development. These findings define a role for death receptors DR6 and TROY in CNS-specific vascular development.
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Affiliation(s)
- Stephen J Tam
- Neurodegeneration Labs, Department of Neuroscience, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA
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Chung SS, Lee JS, Kim M, Ahn BY, Jung HS, Lee HM, Kim JW, Park KS. Regulation of Wnt/β-catenin signaling by CCAAT/enhancer binding protein β during adipogenesis. Obesity (Silver Spring) 2012; 20:482-7. [PMID: 21760632 DOI: 10.1038/oby.2011.212] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Activation of the Wnt/β-catenin signaling pathway inhibits adipogenesis, while disruption of Wnt signaling leads to spontaneous adipogenesis. CCAAT/enhancer binding protein β (C/EBPβ) is rapidly induced in early stages of adipogenesis and is responsible for transcriptional induction of two major adipogenic transcription factors, peroxisome proliferator-activated receptor γ (PPARγ) and C/EBPα. In this study, we examined whether C/EBPβ is involved in the suppression of Wnt/β-catenin signaling during adipogenesis. Knockdown of C/EBPβ expression not only inhibited adipogenesis but also maintained active Wnt/β-catenin signaling, after addition of adipogenic inducers. In contrast, overexpression of C/EBPβ substantially inhibited Wnt signaling. Interestingly, our data showed that C/EBPβ is involved in the expression of Wnt10b, a major Wnt ligand in preadipocytes, even though C/EBPβ is not an essential factor to regulate Wnt10b expression during adipogenesis, and that C/EBPβ inhibits Wnt10b promoter activity by directly binding to specific regions of the promoter. These results suggest a dual function of C/EBPβ: stimulating expression of adipogenic genes and inhibiting Wnt signaling.
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Affiliation(s)
- Sung Soo Chung
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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Hasenpusch-Theil K, Magnani D, Amaniti EM, Han L, Armstrong D, Theil T. Transcriptional analysis of Gli3 mutants identifies Wnt target genes in the developing hippocampus. ACTA ACUST UNITED AC 2012; 22:2878-93. [PMID: 22235033 DOI: 10.1093/cercor/bhr365] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Early development of the hippocampus, which is essential for spatial memory and learning, is controlled by secreted signaling molecules of the Wnt gene family and by Wnt/β-catenin signaling. Despite its importance, little is known, however, about Wnt-regulated genes during hippocampal development. Here, we used the Gli3 mutant mouse extra-toes (Xt(J)), in which Wnt gene expression in the forebrain is severely affected, as a tool in a microarray analyses to identify potential Wnt target genes. This approach revealed 53 candidate genes with restricted or graded expression patterns in the dorsomedial telencephalon. We identified conserved Tcf/Lef-binding sites in telencephalon-specific enhancers of several of these genes, including Dmrt3, Gli3, Nfia, and Wnt8b. Binding of Lef1 to these sites was confirmed using electrophoretic mobility shift assays. Mutations in these Tcf/Lef-binding sites disrupted or reduced enhancer activity in vivo. Moreover, ectopic activation of Wnt/β-catenin signaling in an ex vivo explant system led to increased telencephalic expression of these genes. Finally, conditional inactivation of Gli3 results in defective hippocampal growth. Collectively, these data strongly suggest that we have identified a set of direct Wnt target genes in the developing hippocampus and provide inside into the genetic hierarchy underlying Wnt-regulated hippocampal development.
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