1
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Liu S, Liu M, Li Y, Song Q. N6-methyladenosine-dependent signaling in colorectal cancer: Functions and clinical potential. Crit Rev Oncol Hematol 2024; 198:104360. [PMID: 38615872 DOI: 10.1016/j.critrevonc.2024.104360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 03/29/2024] [Accepted: 04/10/2024] [Indexed: 04/16/2024] Open
Abstract
Colorectal cancer (CRC) ranks as the third most prevalent malignancy worldwide. Despite the gradual expansion of therapeutic options for CRC, its clinical management remains a formidable challenge. And, because of the current dearth of technical means for early CRC screening, most patients are diagnosed at an advanced stage. Therefore, it is imperative to develop novel diagnostic and therapeutic tools for this disease. N6-methyladenosine (m6A), the predominant RNA modification in eukaryotes, can be recognized by m6A-specific methylated reading proteins to modulate gene expression. Studies have revealed that CRC disrupts m6A homeostasis through various mechanisms, thereby sustaining aberrant signal transduction and promoting its own progression. Consequently, m6A-based diagnostic and therapeutic strategies have garnered widespread attention. Although utilizing m6A as a biomarker and drug target has demonstrated promising feasibility, existing observations primarily stem from preclinical models; henceforth necessitating further investigation and resolution of numerous outstanding issues.
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Affiliation(s)
- Shaojun Liu
- Department of Oncology, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese medicine, Suzhou, Jiangsu, China
| | - Min Liu
- Department of Oncology, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese medicine, Suzhou, Jiangsu, China
| | - Yuxuan Li
- Department of Oncology, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese medicine, Suzhou, Jiangsu, China
| | - Qing Song
- Department of Oncology, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese medicine, Suzhou, Jiangsu, China.
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2
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Zhang Y, Cui J, Cang Z, Pei J, Zhang X, Song B, Fan X, Ma X, Li Y. Hair follicle stem cells promote epidermal regeneration under expanded condition. Front Physiol 2024; 15:1306011. [PMID: 38455843 PMCID: PMC10917960 DOI: 10.3389/fphys.2024.1306011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 02/09/2024] [Indexed: 03/09/2024] Open
Abstract
Skin soft tissue expansion is the process of obtaining excess skin mixed with skin development, wound healing, and mechanical stretching. Previous studies have reported that tissue expansion significantly induces epidermal proliferation throughout the skin. However, the mechanisms underlying epidermal regeneration during skin soft tissue expansion are yet to be clarified. Hair follicle stem cells (HFSCs) have been recognized as a promising approach for epidermal regeneration. This study examines HFSC-related epidermal regeneration mechanisms under expanded condition and proposes a potential method for its cellular and molecular regulation.
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Affiliation(s)
| | | | | | | | | | | | - Xing Fan
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Xianjie Ma
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Yang Li
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
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3
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Sharma P, Otto M. Multifunctional nanocomposites modulating the tumor microenvironment for enhanced cancer immunotherapy. Bioact Mater 2024; 31:440-462. [PMID: 37701452 PMCID: PMC10494322 DOI: 10.1016/j.bioactmat.2023.08.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 08/09/2023] [Accepted: 08/28/2023] [Indexed: 09/14/2023] Open
Abstract
Cancer immunotherapy has gained momentum for treating malignant tumors over the past decade. Checkpoint blockade and chimeric antigen receptor cell therapy (CAR-T) have shown considerable potency against liquid and solid cancers. However, the tumor microenvironment (TME) is highly immunosuppressive and hampers the effect of currently available cancer immunotherapies on overall treatment outcomes. Advancements in the design and engineering of nanomaterials have opened new avenues to modulate the TME. Progress in the current nanocomposite technology can overcome immunosuppression and trigger robust immunotherapeutic responses by integrating synergistic functions of different molecules. We will review recent advancements in nanomedical applications and discuss specifically designed nanocomposites modulating the TME for cancer immunotherapy. In addition, we provide information on the current landscape of clinical-stage nanocomposites for cancer immunotherapy.
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Affiliation(s)
- Prashant Sharma
- Department of Child Health, University of Arizona College of Medicine-Phoenix, ABC1 Building, 425 N 5th Street, Phoenix, AZ, 85004, USA
| | - Mario Otto
- Department of Child Health, University of Arizona College of Medicine-Phoenix, ABC1 Building, 425 N 5th Street, Phoenix, AZ, 85004, USA
- Center for Cancer and Blood Disorders (CCBD), Phoenix Children's, 1919 E Thomas Rd, Phoenix, AZ, 85016, USA
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4
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Lu H, Yan H, Li X, Xing Y, Ye Y, Jiang S, Ma L, Ping J, Zuo H, Hao Y, Yu C, Li Y, Zhou G, Lu Y. Single-cell map of dynamic cellular microenvironment of radiation-induced intestinal injury. Commun Biol 2023; 6:1248. [PMID: 38071238 PMCID: PMC10710489 DOI: 10.1038/s42003-023-05645-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
Intestine is a highly radiation-sensitive organ that could be injured during the radiotherapy for pelvic, abdominal, and retroperitoneal tumors. However, the dynamic change of the intestinal microenvironment related to radiation-induced intestine injury (RIII) is still unclear. Using single-cell RNA sequencing, we pictured a dynamic landscape of the intestinal microenvironment during RIII and regeneration. We showed that the various cell types of intestine exhibited heterogeneous radiosensitivities. We revealed the distinct dynamic patterns of three subtypes of intestinal stem cells (ISCs), and the cellular trajectory analysis suggested a complex interconversion pattern among them. For the immune cells, we found that Ly6c+ monocytes can give rise to both pro-inflammatory macrophages and resident macrophages after RIII. Through cellular communication analysis, we identified a positive feedback loop between the macrophages and endothelial cells, which could amplify the inflammatory response induced by radiation. Besides, we identified different T cell subtypes and revealed their role in immunomodulation during the early stage of RIII through inflammation and defense response relevant signaling pathways. Overall, our study provides a valuable single-cell map of the multicellular dynamics during RIII and regeneration, which may facilitate the understanding of the mechanism of RIII.
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Affiliation(s)
- Hao Lu
- Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Hua Yan
- Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Xiaoyu Li
- Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Yuan Xing
- Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Yumeng Ye
- Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Siao Jiang
- Beijing Institute of Radiation Medicine, Beijing, 100850, China
- College of Life Sciences, Hebei University, Baoding City, Hebei Province, 071002, China
| | - Luyu Ma
- Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Jie Ping
- Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Hongyan Zuo
- Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Yanhui Hao
- Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Chao Yu
- Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Yang Li
- Beijing Institute of Radiation Medicine, Beijing, 100850, China.
- Academy of Life Sciences, Anhui Medical University, Hefei City, Anhui Province, 230032, China.
| | - Gangqiao Zhou
- Beijing Institute of Radiation Medicine, Beijing, 100850, China.
- Collaborative Innovation Center for Personalized Cancer Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing City, Jiangsu Province, 211166, China.
| | - Yiming Lu
- Beijing Institute of Radiation Medicine, Beijing, 100850, China.
- College of Life Sciences, Hebei University, Baoding City, Hebei Province, 071002, China.
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5
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Xiao L, Warner B, Mallard CG, Chung HK, Shetty A, Brantner CA, Rao JN, Yochum GS, Koltun WA, To KB, Turner DJ, Gorospe M, Wang JY. Control of Paneth cell function by HuR regulates gut mucosal growth by altering stem cell activity. Life Sci Alliance 2023; 6:e202302152. [PMID: 37696579 PMCID: PMC10494932 DOI: 10.26508/lsa.202302152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/13/2023] Open
Abstract
Rapid self-renewal of the intestinal epithelium requires the activity of intestinal stem cells (ISCs) that are intermingled with Paneth cells (PCs) at the crypt base. PCs provide multiple secreted and surface-bound niche signals and play an important role in the regulation of ISC proliferation. Here, we show that control of PC function by RNA-binding protein HuR via mitochondria affects intestinal mucosal growth by altering ISC activity. Targeted deletion of HuR in mice disrupted PC gene expression profiles, reduced PC-derived niche factors, and impaired ISC function, leading to inhibited renewal of the intestinal epithelium. Human intestinal mucosa from patients with critical surgical disorders exhibited decreased levels of tissue HuR and PC/ISC niche dysfunction, along with disrupted mucosal growth. HuR deletion led to mitochondrial impairment by decreasing the levels of several mitochondrial-associated proteins including prohibitin 1 (PHB1) in the intestinal epithelium, whereas HuR enhanced PHB1 expression by preventing microRNA-195 binding to the Phb1 mRNA. These results indicate that HuR is essential for maintaining the integrity of the PC/ISC niche and highlight a novel role for a defective PC/ISC niche in the pathogenesis of intestinal mucosa atrophy.
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Affiliation(s)
- Lan Xiao
- https://ror.org/04rq5mt64 Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Bridgette Warner
- https://ror.org/04rq5mt64 Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Caroline G Mallard
- https://ror.org/04rq5mt64 Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Hee K Chung
- https://ror.org/04rq5mt64 Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Amol Shetty
- https://ror.org/04rq5mt64 Institute for Genome Science, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Christine A Brantner
- https://ror.org/04rq5mt64 Electron Microscopy Core Imaging Facility, University of Maryland Baltimore, Baltimore, MD, USA
| | - Jaladanki N Rao
- https://ror.org/04rq5mt64 Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
- Baltimore Veterans Affairs Medical Center, Baltimore, MD, USA
| | - Gregory S Yochum
- Department of Surgery, Pennsylvania State University College of Medicine, Hershey, PA, USA
- Department of Biochemistry and Molecular Biology, Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Walter A Koltun
- Department of Surgery, Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Kathleen B To
- Baltimore Veterans Affairs Medical Center, Baltimore, MD, USA
| | - Douglas J Turner
- https://ror.org/04rq5mt64 Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
- Baltimore Veterans Affairs Medical Center, Baltimore, MD, USA
| | - Myriam Gorospe
- Laboratory of Genetics and Genomics, National Institute on Aging-IRP, NIH, Baltimore, MD, USA
| | - Jian-Ying Wang
- https://ror.org/04rq5mt64 Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
- Baltimore Veterans Affairs Medical Center, Baltimore, MD, USA
- https://ror.org/04rq5mt64 Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, USA
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6
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Akalın SA, Öcal E, Deveci E. Role of SOX9 and Hif-1α expression in placentas of patients with HELLP. Acta Cir Bras 2023; 38:e388023. [PMID: 37878989 PMCID: PMC10592703 DOI: 10.1590/acb388023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 08/13/2023] [Indexed: 10/27/2023] Open
Abstract
PURPOSE In this study, we investigated the immunohistochemical staining of SRY-box transcription factor 9 (SOX9) and Hif-1α expression in placentas of pregnant woman with hemolysis, elevated liver enzymes and low platelets (HELLP) syndrome. METHODS Placentas of 20 normotensive and 20 women with HELLP syndrome were processed for routine histological tissue processing. The biochemical and clinical parameters of patients were recorded. Placentas were stained with hematoxylin-eosin and SOX9 and Hif-1α immunostaining. RESULTS Normotensive placentas showed normal histology of placenta, however placentas of HELLP syndrome showed intense thrombosis, thinning of the villi membrane and vascular dilatation. In placentas of normotensive patients, SOX9 reaction was immunohistochemically negative, however placentas of HELLP group showed SOX9 expression in decidual cells, and syncytial regions of floating villi and inflammatory cells. In placentas of normotensive patients, Hif-1α reaction was mainly negative in vessels and connective tissue cells. Placentas of HELLP group showed increased Hif-1α expression in decidual cell and especially inflammatory cells in the maternal region. CONCLUSIONS Hif-1α and SOX9 proteins can be used as a marker to show severity of preeclampsia and regulation of cell proliferation and angiogenesis during placental development.
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Affiliation(s)
- Senem Alkan Akalın
- Private Medical Practice – Department of Gynecology and Obstetrics – Bursa – Turkey
| | - Ece Öcal
- Private Medical Practice – Department of Perinatology – Diyarbakir – Turkey
| | - Engin Deveci
- Dicle University – Medical School – Department of Histology and Embryology – Diyarbakir – Turkey
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7
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Wu Z, Zhu J, Wen Y, Lei P, Xie J, Shi H, Wu R, Lou X, Hu Y. Hmga1-overexpressing lentivirus protects against osteoporosis by activating the Wnt/β-catenin pathway in the osteogenic differentiation of BMSCs. FASEB J 2023; 37:e22987. [PMID: 37555233 DOI: 10.1096/fj.202300488r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/26/2023] [Accepted: 05/09/2023] [Indexed: 08/10/2023]
Abstract
Postmenopausal osteoporosis is associated with bone formation inhibition mediated by the impaired osteogenic differentiation potential of bone marrow mesenchymal stem cells (BMSCs). However, identifying and confirming the essential genes in the osteogenic differentiation of BMSCs and osteoporosis remain challenging. The study aimed at revealing the key gene that regulated osteogenic differentiation of BMSCs and led to osteoporosis, thus exploring its therapeutic effect in osteoporosis. In the present study, six essential genes related to the osteogenic differentiation of BMSCs and osteoporosis were identified, namely, fibrillin 2 (Fbn2), leucine-rich repeat-containing 17 (Lrrc17), heat shock protein b7 (Hspb7), high mobility group AT-hook 1 (Hmga1), nexilin F-actin-binding protein (Nexn), and endothelial cell-specific molecule 1 (Esm1). Furthermore, the in vivo and in vitro experiments showed that Hmga1 expression was increased during the osteogenic differentiation of rat BMSCs, while Hmga1 expression was decreased in the bone tissue of ovariectomized (OVX) rats. Moreover, the expression of osteogenic differentiation-related genes, the activity of alkaline phosphatase (ALP), and the number of mineralized nodules were increased after Hmga1 overexpression, which was partially reversed by a Wnt signaling inhibitor (DKK1). In addition, after injecting Hmga1-overexpressing lentivirus into the bone marrow cavity of OVX rats, the bone loss, and osteogenic differentiation inhibition of BMSCs in OVX rats were partially reversed, while osteoclast differentiation promotion of BMSCs in OVX rats was unaffected. Taken together, the present study confirms that Hmga1 prevents OVX-induced bone loss by the Wnt signaling pathway and reveals that Hmga1 is a potential gene therapeutic target for postmenopausal osteoporosis.
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Affiliation(s)
- Zhixin Wu
- Department of Orthopedic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jiayong Zhu
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yinxian Wen
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Pengfei Lei
- Department of Orthopedic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Jie Xie
- Department of Orthopedic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Haifei Shi
- Department of Orthopedic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Ronghuan Wu
- Department of Orthopedic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xianfeng Lou
- Department of Orthopedic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yihe Hu
- Department of Orthopedic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
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8
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Wang J, Wan X, Le Q. Cross-regulation between SOX9 and the canonical Wnt signalling pathway in stem cells. Front Mol Biosci 2023; 10:1250530. [PMID: 37664185 PMCID: PMC10469848 DOI: 10.3389/fmolb.2023.1250530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 08/09/2023] [Indexed: 09/05/2023] Open
Abstract
SOX9, a member of the SRY-related HMG-box transcription factors, has been reported to critically regulate fetal development and stem cell homeostasis. Wnt signalling is a highly conserved signalling pathway that controls stem cell fate decision and stemness maintenance throughout embryonic development and adult life. Many studies have shown that the interactions between SOX9 and the canonical Wnt signalling pathway are involved in many of the physiological and pathological processes of stem cells, including organ development, the proliferation, differentiation and stemness maintenance of stem cells, and tumorigenesis. In this review, we summarize the already-known molecular mechanism of cross-interactions between SOX9 and the canonical Wnt signalling pathway, outline its regulatory effects on the maintenance of homeostasis in different types of stem cells, and explore its potential in translational stem cell therapy.
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Affiliation(s)
- Jiajia Wang
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital of Fudan University, Shanghai, China
| | - Xichen Wan
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital of Fudan University, Shanghai, China
| | - Qihua Le
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital of Fudan University, Shanghai, China
- Research Center, Eye, Ear, Nose, and Throat Hospital of Fudan University, Shanghai, China
- Myopia Key Laboratory of Ministry of Health, Eye, Ear, Nose, and Throat Hospital of Fudan University, Shanghai, China
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9
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Zhou T, Chen Y, Liao Z, Zhang L, Su D, Li Z, Yang X, Ke X, Liu H, Chen Y, Weng R, Shen H, Xu C, Wan Y, Xu R, Su P. Spatiotemporal Characterization of Human Early Intervertebral Disc Formation at Single-Cell Resolution. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206296. [PMID: 36965031 DOI: 10.1002/advs.202206296] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 02/28/2023] [Indexed: 05/18/2023]
Abstract
The intervertebral disc (IVD) acts as a fibrocartilaginous joint to anchor adjacent vertebrae. Although several studies have demonstrated the cellular heterogeneity of adult mature IVDs, a single-cell transcriptomic atlas mapping early IVD formation is still lacking. Here, the authors generate a spatiotemporal and single cell-based transcriptomic atlas of human IVD formation at the embryonic stage and a comparative mouse transcript landscape. They identify two novel human notochord (NC)/nucleus pulposus (NP) clusters, SRY-box transcription factor 10 (SOX10)+ and cathepsin K (CTSK)+ , that are distributed in the early and late stages of IVD formation and they are validated by lineage tracing experiments in mice. Matrisome NC/NP clusters, T-box transcription factor T (TBXT)+ and CTSK+ , are responsible for the extracellular matrix homeostasis. The IVD atlas suggests that a subcluster of the vertebral chondrocyte subcluster might give rise to an inner annulus fibrosus of chondrogenic origin, while the fibroblastic outer annulus fibrosus preferentially expresseds transgelin and fibromodulin . Through analyzing intercellular crosstalk, the authors further find that notochordal secreted phosphoprotein 1 (SPP1) is a novel cue in the IVD microenvironment, and it is associated with IVD development and degeneration. In conclusion, the single-cell transcriptomic atlas will be leveraged to develop preventative and regenerative strategies for IVD degeneration.
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Affiliation(s)
- Taifeng Zhou
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Yu Chen
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, 361102, China
| | - Zhiheng Liao
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Long Zhang
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, 361102, China
| | - Deying Su
- Guangdong Provincial Key Laboratory of Proteomics and State Key Laboratory of Organ Failure Research, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Zhuling Li
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Xiaoming Yang
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Xiaona Ke
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Hengyu Liu
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Yuyu Chen
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Ricong Weng
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Huimin Shen
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Caixia Xu
- Research Center for Translational Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Yong Wan
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Ren Xu
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, 361102, China
| | - Peiqiang Su
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
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10
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Guo H, Zhang J, Jiang Z, Zhu X, Yang J, Mu R, Du Y, Tian Y, Zhu P, Fan Z. Noncoding RNA circBtnl1 suppresses self-renewal of intestinal stem cells via disruption of Atf4 mRNA stability. EMBO J 2023; 42:e112039. [PMID: 36715460 PMCID: PMC10015366 DOI: 10.15252/embj.2022112039] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 12/26/2022] [Accepted: 01/02/2023] [Indexed: 01/31/2023] Open
Abstract
Intestinal stem cells (ISCs) at the crypt base are responsible for the regeneration of the intestinal epithelium. However, how ISC self-renewal is regulated still remains unclear. Here we identified a circular RNA, circBtnl1, that is highly expressed in ISCs. Loss of circBtnl1 in mice enhanced ISC self-renewal capacity and epithelial regeneration, without changes in mRNA and protein levels of its parental gene Btnl1. Mechanistically, circBtnl1 and Atf4 mRNA competitively bound the ATP-dependent RNA helicase Ddx3y to impair the stability of Atf4 mRNA in wild-type ISCs. Furthermore, ATF4 activated Sox9 transcription by binding to its promoter via a unique motif, to enhance the self-renewal capacity and epithelial regeneration of ISCs. In contrast, circBtnl1 knockout promoted Atf4 mRNA stability and enhanced ATF4 expression, which caused Sox9 transcription to potentiate ISC stemness. These data indicate that circBtnl1-mediated Atf4 mRNA decay suppresses Sox9 transcription that negatively modulates self-renewal maintenance of ISCs.
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Affiliation(s)
- Hui Guo
- Key Laboratory of Infection and Immunity of CAS, CAS Center for Excellence in Biomacromolecules, Institute of BiophysicsChinese Academy of SciencesBeijingChina
| | - Jiahang Zhang
- Key Laboratory of Infection and Immunity of CAS, CAS Center for Excellence in Biomacromolecules, Institute of BiophysicsChinese Academy of SciencesBeijingChina
| | - Zhimin Jiang
- Key Laboratory of Infection and Immunity of CAS, CAS Center for Excellence in Biomacromolecules, Institute of BiophysicsChinese Academy of SciencesBeijingChina
| | - Xiaoxiao Zhu
- Key Laboratory of RNA Biology, Institute of BiophysicsChinese Academy of SciencesBeijingChina
| | - Jing Yang
- Department of PhysiologyHebei Medical UniversityShijiazhuangChina
| | - Rui Mu
- Department of PhysiologyHebei Medical UniversityShijiazhuangChina
| | - Ying Du
- Key Laboratory of Infection and Immunity of CAS, CAS Center for Excellence in Biomacromolecules, Institute of BiophysicsChinese Academy of SciencesBeijingChina
| | - Yong Tian
- Key Laboratory of RNA Biology, Institute of BiophysicsChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Pingping Zhu
- School of Life SciencesZhengzhou UniversityZhengzhouChina
| | - Zusen Fan
- Key Laboratory of Infection and Immunity of CAS, CAS Center for Excellence in Biomacromolecules, Institute of BiophysicsChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
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11
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Chia L, Wang B, Kim JH, Luo LZ, Shuai S, Herrera I, Chen SY, Li L, Xian L, Huso T, Heydarian M, Reddy K, Sung WJ, Ishiyama S, Guo G, Jaffee E, Zheng L, Cope LM, Gabrielson K, Wood L, Resar L. HMGA1 induces FGF19 to drive pancreatic carcinogenesis and stroma formation. J Clin Invest 2023; 133:151601. [PMID: 36919699 PMCID: PMC10014113 DOI: 10.1172/jci151601] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 01/25/2023] [Indexed: 03/15/2023] Open
Abstract
High mobility group A1 (HMGA1) chromatin regulators are upregulated in diverse tumors where they portend adverse outcomes, although how they function in cancer remains unclear. Pancreatic ductal adenocarcinomas (PDACs) are highly lethal tumors characterized by dense desmoplastic stroma composed predominantly of cancer-associated fibroblasts and fibrotic tissue. Here, we uncover an epigenetic program whereby HMGA1 upregulates FGF19 during tumor progression and stroma formation. HMGA1 deficiency disrupts oncogenic properties in vitro while impairing tumor inception and progression in KPC mice and subcutaneous or orthotopic models of PDAC. RNA sequencing revealed HMGA1 transcriptional networks governing proliferation and tumor-stroma interactions, including the FGF19 gene. HMGA1 directly induces FGF19 expression and increases its protein secretion by recruiting active histone marks (H3K4me3, H3K27Ac). Surprisingly, disrupting FGF19 via gene silencing or the FGFR4 inhibitor BLU9931 recapitulates most phenotypes observed with HMGA1 deficiency, decreasing tumor growth and formation of a desmoplastic stroma in mouse models of PDAC. In human PDAC, overexpression of HMGA1 and FGF19 defines a subset of tumors with extremely poor outcomes. Our results reveal what we believe is a new paradigm whereby HMGA1 and FGF19 drive tumor progression and stroma formation, thus illuminating FGF19 as a rational therapeutic target for a molecularly defined PDAC subtype.
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Affiliation(s)
- Lionel Chia
- Pathobiology Graduate Program, Department of Pathology and.,Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Bowen Wang
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Biochemistry and Molecular Biology Program, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Jung-Hyun Kim
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Li Z Luo
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Shuai Shuai
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Iliana Herrera
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | - Liping Li
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Lingling Xian
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Tait Huso
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | | | - Woo Jung Sung
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Shun Ishiyama
- Department of Pathology.,Department of Molecular and Comparative Pathobiology
| | - Gongbo Guo
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | | | - Leslie M Cope
- Department of Oncology, and.,Division of Biostatistics, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | - Laura Wood
- Pathobiology Graduate Program, Department of Pathology and.,Department of Pathology.,Department of Oncology, and
| | - Linda Resar
- Pathobiology Graduate Program, Department of Pathology and.,Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Biochemistry and Molecular Biology Program, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.,Department of Pathology.,Department of Oncology, and
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12
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Su Y, Dang NM, Depypere H, Santucci-Pereira J, Gutiérrez-Díez PJ, Kanefsky J, Janssens JP, Russo J. Recombinant human chorionic gonadotropin induces signaling pathways towards cancer prevention in the breast of BRCA1/2 mutation carriers. Eur J Cancer Prev 2023; 32:126-138. [PMID: 35881946 PMCID: PMC9800649 DOI: 10.1097/cej.0000000000000763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Strategies for breast cancer prevention in women with germline BRCA1/2 mutations are limited. We previously showed that recombinant human chorionic gonadotropin (r-hCG) induces mammary gland differentiation and inhibits mammary tumorigenesis in rats. The present study investigated hCG-induced signaling pathways in the breast of young nulliparous women carrying germline BRCA1/2 mutations. METHODS We performed RNA-sequencing on breast tissues from 25 BRCA1/2 mutation carriers who received r-hCG treatment for 3 months in a phase II clinical trial, we analyzed the biological processes, reactome pathways, canonical pathways, and upstream regulators associated with genes differentially expressed after r-hCG treatment, and validated genes of interest. RESULTS We observed that r-hCG induces remarkable transcriptomic changes in the breast of BRCA1/2 carriers, especially in genes related to cell development, cell differentiation, cell cycle, apoptosis, DNA repair, chromatin remodeling, and G protein-coupled receptor signaling. We revealed that r-hCG inhibits Wnt/β-catenin signaling, MYC, HMGA1 , and HOTAIR , whereas activates TGFB/TGFBR-SMAD2/3/4, BRCA1, TP53, and upregulates BRCA1 protein. CONCLUSION Our data suggest that the use of r-hCG at young age may reduce the risk of breast cancer in BRCA1/2 carriers by inhibiting pathways associated with stem/progenitor cell maintenance and neoplastic transformation, whereas activating genes crucial for breast epithelial differentiation and lineage commitment, and DNA repair.
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Affiliation(s)
- Yanrong Su
- The Irma H Russo, MD, Breast Cancer Research Laboratory at the Fox Chase Cancer Center-Temple Health, 333 Cottman Avenue, Philadelphia, PA 19111, USA
- These authors contributed equally: Yanrong Su, Nhi M. Dang, and Herman Depypere
| | - Nhi M. Dang
- The Irma H Russo, MD, Breast Cancer Research Laboratory at the Fox Chase Cancer Center-Temple Health, 333 Cottman Avenue, Philadelphia, PA 19111, USA
- These authors contributed equally: Yanrong Su, Nhi M. Dang, and Herman Depypere
| | - Herman Depypere
- Department of Gynecology, Breast and Menopause clinic, University Hospital of Ghent, Corneel Heymanslaan 10, 9000 Ghent, Belgium
- These authors contributed equally: Yanrong Su, Nhi M. Dang, and Herman Depypere
| | - Julia Santucci-Pereira
- The Irma H Russo, MD, Breast Cancer Research Laboratory at the Fox Chase Cancer Center-Temple Health, 333 Cottman Avenue, Philadelphia, PA 19111, USA
| | | | - Joice Kanefsky
- The Irma H Russo, MD, Breast Cancer Research Laboratory at the Fox Chase Cancer Center-Temple Health, 333 Cottman Avenue, Philadelphia, PA 19111, USA
| | - Jaak Ph. Janssens
- European Cancer Prevention Organization, University of Hasselt, Klein Hilststraat 5, 3500 Hasselt, Belgium
| | - Jose Russo
- The Irma H Russo, MD, Breast Cancer Research Laboratory at the Fox Chase Cancer Center-Temple Health, 333 Cottman Avenue, Philadelphia, PA 19111, USA
- Dr. Russo conceived the study and supervised the work. Dr. Russo passed away on September 24, 2021
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13
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Zheng L, Duan SL, Wen XL, Dai YC. Molecular regulation after mucosal injury and regeneration in ulcerative colitis. Front Mol Biosci 2022; 9:996057. [PMID: 36310594 PMCID: PMC9606627 DOI: 10.3389/fmolb.2022.996057] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 09/26/2022] [Indexed: 12/02/2022] Open
Abstract
Ulcerative colitis (UC) is a chronic nonspecific inflammatory disease with a complex etiology. Intestinal mucosal injury is an important pathological change in individuals with UC. Leucine-rich repeat-containing G protein-coupled receptor 5 (LGR5+) intestinal stem cells (ISCs) exhibit self-renewal and high differentiation potential and play important roles in the repair of intestinal mucosal injury. Moreover, LGR5+ ISCs are intricately regulated by both the Wnt/β-catenin and Notch signaling pathways, which jointly maintain the function of LGR5+ ISCs. Combination therapy targeting multiple signaling pathways and transplantation of LGR5+ ISCs may lead to the development of new clinical therapies for UC.
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Affiliation(s)
- Lie Zheng
- Department of Gastroenterology, Shaanxi Hospital of Traditional Chinese Medicine, Xi’an, Shaanxi Province, China
| | - Sheng-Lei Duan
- Department of Gastroenterology, Shaanxi Hospital of Traditional Chinese Medicine, Xi’an, Shaanxi Province, China
| | - Xin-Li Wen
- Department of Gastroenterology, Shaanxi Hospital of Traditional Chinese Medicine, Xi’an, Shaanxi Province, China
| | - Yan-Cheng Dai
- Department of Gastroenterology, Shanghai Traditional Chinese Medicine Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Yan-Cheng Dai,
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14
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Jouan Y, Bouchemla Z, Bardèche-Trystram B, Sana J, Andrique C, Ea HK, Richette P, Latourte A, Cohen-Solal M, Hay E. Lin28a induces SOX9 and chondrocyte reprogramming via HMGA2 and blunts cartilage loss in mice. SCIENCE ADVANCES 2022; 8:eabn3106. [PMID: 36026443 PMCID: PMC9417174 DOI: 10.1126/sciadv.abn3106] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 07/13/2022] [Indexed: 06/15/2023]
Abstract
Articular cartilage has low regenerative capacity despite permanent stress. Irreversible cartilage lesions characterize osteoarthritis (OA); this is not followed by tissue repair. Lin28a, an RNA binding protein, is detected in damaged cartilage in humans and mice. We investigated the role of LIN28a in cartilage physiology and in osteoarthritis. Lin28a-inducible conditional cartilage deletion up-regulated Mmp13 in intact mice and exacerbated the cartilage destruction in OA mice. Lin28a-specific cartilage overexpression protected mice against cartilage breakdown, stimulated chondrocyte proliferation and the expression of Prg4 and Sox9, and down-regulated Mmp13. Lin28a overexpression inhibited Let-7b and Let-7c miRNA levels while RNA-sequencing analysis revealed five genes of transcriptional factors regulated by Let-7. Moreover, Lin28a overexpression up-regulated HMGA2 and activated SOX9 transcription, a factor required for chondrocyte reprogramming. HMGA2 siRNA knockdown inhibited the cartilage protective effect of Lin28a overexpression. This study provides insights into a new pathway including the Lin28a-Let7 axis, thus promoting chondrocyte anabolism in injured cartilage in mice.
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Affiliation(s)
- Yohan Jouan
- Bioscar UMR Inserm 1132 and Université de Paris, F-75010 Paris, France
| | - Zohra Bouchemla
- Bioscar UMR Inserm 1132 and Université de Paris, F-75010 Paris, France
| | | | - Joanna Sana
- Bioscar UMR Inserm 1132 and Université de Paris, F-75010 Paris, France
| | - Caroline Andrique
- Bioscar UMR Inserm 1132 and Université de Paris, F-75010 Paris, France
| | - Hang-Korng Ea
- Bioscar UMR Inserm 1132 and Université de Paris, F-75010 Paris, France
- Hôpital Lariboisière, APHP, Paris, France
| | - Pascal Richette
- Bioscar UMR Inserm 1132 and Université de Paris, F-75010 Paris, France
- Hôpital Lariboisière, APHP, Paris, France
| | - Augustin Latourte
- Bioscar UMR Inserm 1132 and Université de Paris, F-75010 Paris, France
| | - Martine Cohen-Solal
- Bioscar UMR Inserm 1132 and Université de Paris, F-75010 Paris, France
- Hôpital Lariboisière, APHP, Paris, France
| | - Eric Hay
- Bioscar UMR Inserm 1132 and Université de Paris, F-75010 Paris, France
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15
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Wang L, Zhang J, Xia M, Liu C, Zu X, Zhong J. High Mobility Group A1 (HMGA1): Structure, Biological Function, and Therapeutic Potential. Int J Biol Sci 2022; 18:4414-4431. [PMID: 35864955 PMCID: PMC9295051 DOI: 10.7150/ijbs.72952] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 06/24/2022] [Indexed: 11/26/2022] Open
Abstract
High mobility group A1 (HMGA1) is a nonhistone chromatin structural protein characterized by no transcriptional activity. It mainly plays a regulatory role by modifying the structure of DNA. A large number of studies have confirmed that HMGA1 regulates genes related to tumours in the reproductive system, digestive system, urinary system and haematopoietic system. HMGA1 is rare in adult cells and increases in highly proliferative cells such as embryos. After being stimulated by external factors, it will produce effects through the Wnt/β-catenin, PI3K/Akt, Hippo and MEK/ERK pathways. In addition, HMGA1 also affects the ageing, apoptosis, autophagy and chemotherapy resistance of cancer cells, which are linked to tumorigenesis. In this review, we summarize the mechanisms of HMGA1 in cancer progression and discuss the potential clinical application of targeted HMGA1 therapy, indicating that targeted HMGA1 is of great significance in the diagnosis and treatment of malignancy.
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Affiliation(s)
- Lu Wang
- Institute of Clinical Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China
| | - Ji Zhang
- Department of Clinical Laboratory, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518033, Guangdong, China
| | - Min Xia
- Institute of Clinical Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China.,Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China
| | - Chang Liu
- Department of Endocrinology and Metabolism, The First People's Hospital of Chenzhou, First School of Clinical Medicine, University of Southern Medical, Guangzhou 510515, Guangdong, China
| | - Xuyu Zu
- Institute of Clinical Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China.,Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China
| | - Jing Zhong
- Institute of Clinical Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China.,Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China
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16
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HMGA1 Promotes Macrophage Recruitment via Activation of NF-κB-CCL2 Signaling in Hepatocellular Carcinoma. J Immunol Res 2022; 2022:4727198. [PMID: 35785026 PMCID: PMC9242763 DOI: 10.1155/2022/4727198] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/04/2022] [Accepted: 05/17/2022] [Indexed: 11/18/2022] Open
Abstract
Background Tumor-associated macrophages (TAMs) are known to generate an immune-suppressive tumor microenvironment (TME) and promote tumor progression. Hepatocellular carcinoma (HCC) is a devastating disease that evolves in the background of chronic inflammatory liver damage. In this study, we aimed to uncover the mechanism by which HCC cells recruit macrophages into the TME. Methods Bioinformatic analysis was performed to identify differentially expressed genes related to macrophage infiltration. An orthotopic HCC xenograft model was used to determine the role of macrophages in HCC tumor growth. Clodronate liposomes were used to delete macrophages. Western blotting analysis, quantitative real-time PCR, and enzyme-linked immunosorbent assay were performed to determine the underlying mechanisms. Results The high mobility group A1 (HMGA1) gene was identified as a putative modulator of macrophage infiltration in HCC. Deletion of macrophages with clodronate liposomes significantly abrogated the tumor-promoting effects of HMGA1 on HCC growth. Mechanistically, HMGA1 can regulate the expression of C-C Motif Chemokine Ligand 2 (CCL2), also referred to as monocyte chemoattractant protein 1 (MCP1), which is responsible for macrophage recruitment. Moreover, NF-κB was required for HMGA1-mediated CCL2 expression. Pharmacological or genetic inhibition of NF-κB largely blocked CCL2 levels in HMGA1-overexpressing HCC cells. Conclusions This study reveals HMGA1 as a crucial regulator of macrophage recruitment by activating NF-κB-CCL2 signaling, proves that HMGA1-induced HCC aggressiveness dependents on the macrophage, and provide an attractive target for therapeutic interventions in HCC.
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17
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Li L, Kim JH, Lu W, Williams DM, Kim J, Cope L, Rampal RK, Koche RP, Xian L, Luo LZ, Vasiljevic M, Matson DR, Zhao ZJ, Rogers O, Stubbs MC, Reddy K, Romero AR, Psaila B, Spivak JL, Moliterno AR, Resar LMS. HMGA1 chromatin regulators induce transcriptional networks involved in GATA2 and proliferation during MPN progression. Blood 2022; 139:2797-2815. [PMID: 35286385 PMCID: PMC9074401 DOI: 10.1182/blood.2021013925] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 02/18/2022] [Indexed: 11/20/2022] Open
Abstract
Myeloproliferative neoplasms (MPNs) transform to myelofibrosis (MF) and highly lethal acute myeloid leukemia (AML), although the actionable mechanisms driving progression remain elusive. Here, we elucidate the role of the high mobility group A1 (HMGA1) chromatin regulator as a novel driver of MPN progression. HMGA1 is upregulated in MPN, with highest levels after transformation to MF or AML. To define HMGA1 function, we disrupted gene expression via CRISPR/Cas9, short hairpin RNA, or genetic deletion in MPN models. HMGA1 depletion in JAK2V617F AML cell lines disrupts proliferation, clonogenicity, and leukemic engraftment. Surprisingly, loss of just a single Hmga1 allele prevents progression to MF in JAK2V617F mice, decreasing erythrocytosis, thrombocytosis, megakaryocyte hyperplasia, and expansion of stem and progenitors, while preventing splenomegaly and fibrosis within the spleen and BM. RNA-sequencing and chromatin immunoprecipitation sequencing revealed HMGA1 transcriptional networks and chromatin occupancy at genes that govern proliferation (E2F, G2M, mitotic spindle) and cell fate, including the GATA2 master regulatory gene. Silencing GATA2 recapitulates most phenotypes observed with HMGA1 depletion, whereas GATA2 re-expression partially rescues leukemogenesis. HMGA1 transactivates GATA2 through sequences near the developmental enhancer (+9.5), increasing chromatin accessibility and recruiting active histone marks. Further, HMGA1 transcriptional networks, including proliferation pathways and GATA2, are activated in human MF and MPN leukemic transformation. Importantly, HMGA1 depletion enhances responses to the JAK2 inhibitor, ruxolitinib, preventing MF and prolonging survival in murine models of JAK2V617F AML. These findings illuminate HMGA1 as a key epigenetic switch involved in MPN transformation and a promising therapeutic target to treat or prevent disease progression.
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Affiliation(s)
- Liping Li
- Division of Hematology, Department of Medicine, and
| | | | - Wenyan Lu
- Division of Hematology, Department of Medicine, and
| | | | - Joseph Kim
- Division of Hematology, Department of Medicine, and
| | - Leslie Cope
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Raajit K Rampal
- Human Oncology and Pathogenesis Program, Leukemia Service, Department of Medicine, Center for Epigenetics Research, Memorial Sloan Kettering Cancer Institute, New York, NY
| | - Richard P Koche
- Human Oncology and Pathogenesis Program, Leukemia Service, Department of Medicine, Center for Epigenetics Research, Memorial Sloan Kettering Cancer Institute, New York, NY
| | | | - Li Z Luo
- Division of Hematology, Department of Medicine, and
| | | | - Daniel R Matson
- Blood Cancer Research Institute, Department of Cell and Regenerative Biology, UW Carbone Cancer Center, University of Wisconsin School of Medicine, Madison, WI
| | - Zhizhuang Joe Zhao
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | | | | | - Karen Reddy
- Department of Biologic Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Antonio-Rodriguez Romero
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institutes of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, UK; and
| | - Bethan Psaila
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institutes of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, UK; and
| | - Jerry L Spivak
- Division of Hematology, Department of Medicine, and
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - Linda M S Resar
- Division of Hematology, Department of Medicine, and
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD
- Cellular and Molecular Medicine Graduate Program and
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD
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18
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Yao Y, Chen H, Tan N. Cancer-cell-biomimetic nanoparticles systemically eliminate hypoxia tumors by synergistic chemotherapy and checkpoint blockade immunotherapy. Acta Pharm Sin B 2022; 12:2103-2119. [PMID: 35847496 PMCID: PMC9279713 DOI: 10.1016/j.apsb.2021.10.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 09/27/2021] [Accepted: 10/04/2021] [Indexed: 02/06/2023] Open
Abstract
Checkpoint blockade-based immunotherapy has shown unprecedented effect in cancer treatments, but its clinical implementation has been restricted by the low host antitumor response rate. Recently, chemotherapy is well recognized to activate the immune system during some chemotherapeutics-mediated tumor eradication. The enhancement of immune response during chemotherapy might further improve the therapeutic efficiency through the synergetic mechanism. Herein, a synergistic antitumor platform (designated as BMS/RA@CC-Liposome) was constructed by utilizing CT26 cancer-cell-biomimetic nanoparticles that combined chemotherapeutic drug (RA-V) and PD-1/PD-L1 blockade inhibitor (BMS-202) to remarkably enhance antitumor immunity. In this study, the cyclopeptide RA-V as chemotherapeutic drugs directly killing tumor cells and BMS-202 as anti-PD agents eliciting antitumor immune responses were co-encapsulated in a pH-sensitive nanosystem. To achieve the cell-specific targeting drug delivery, the combination therapy nanosystem was functionalized with cancer cell membrane camouflage. The biomimetic drug delivery system perfectly disguised as endogenous substances, and realized elongated blood circulation due to anti-phagocytosis capability. Moreover, the BMS/RA@CC-Liposome also achieved the selective targeting of CT26 cells by taking advantage of the inherent homologous adhesion property of tumor cells. The in vitro and in vivo experiments revealed that the BMS/RA@CC-Liposome realized PD-1/PD-L1 blockade-induced immune response, RA-V-induced PD-L1 down-regulation and apoptosis in cancer cells. Such a system combining the advantages of chemotherapy and checkpoint blockade-based immunotherapy to create an immunogenic tumor microenvironment systemically, demonstrated improved therapeutic efficacy against hypoxic tumor cells and offers an alternative strategy based on the immunology of the PD-1/PD-L1 pathway.
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19
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Ohmori K, Kamei A, Watanabe Y, Abe K. Gene Expression over Time during Cell Transformation Due to Non-Genotoxic Carcinogen Treatment of Bhas 42 Cells. Int J Mol Sci 2022; 23:ijms23063216. [PMID: 35328637 PMCID: PMC8954493 DOI: 10.3390/ijms23063216] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 03/11/2022] [Accepted: 03/11/2022] [Indexed: 02/05/2023] Open
Abstract
The Bhas 42 cell transformation assay (Bhas 42 CTA) is the first Organization for Economic Cooperation and Development (OECD)-certificated method used as a specific tool for the detection of the cell-transformation potential of tumor-promoting compounds, including non-genotoxic carcinogens (NGTxCs), as separate from genotoxic carcinogens. This assay offers the great advantage of enabling the phenotypic detection of oncotransformation. A key benefit of using the Bhas 42 CTA in the study of the cell-transformation mechanisms of tumor-promoting compounds, including non-genotoxic carcinogens, is that the cell-transformation potential of the chemical can be detected directly without treatment with a tumor-initiating compound since Bhas 42 cell line was established by transfecting the v-Ha-ras gene into a mouse fibroblast cloned cell line. Here, we analyzed the gene expression over time, using DNA microarrays, in Bhas 42 cells treated with the tumor-promoting compound 12-O-tetradecanoylphorbol-13-acetate (TPA), and NGTxC, with a total of three repeat experiments. This is the first paper to report on gene expression over time during the process of cell transformation with only a tumor-promoting compound. Pathways that were activated or inactivated during the process of cell transformation in the Bhas 42 cells treated with TPA were related not only directly to RAS but also to various pathways in the hallmarks of cancer.
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Affiliation(s)
- Kiyomi Ohmori
- Chemical Division, Kanagawa Prefectural Institute of Public Health, Chigasaki 2530087, Japan
- Research Initiatives and Promotion Organization, Yokohama National University, Yokohama 2408501, Japan
- Correspondence: or ; Tel./Fax: +81-046-783-4400 or +81-045-339-4448
| | - Asuka Kamei
- Group for Food Functionality Assessment, Kanagawa Institute of Industrial Science and Technology, Kawasaki 2100821, Japan; (A.K.); (K.A.)
| | - Yuki Watanabe
- Health and Anti-Aging Project, Kanagawa Academy of Science and Technology, Kawasaki 2130012, Japan;
| | - Keiko Abe
- Group for Food Functionality Assessment, Kanagawa Institute of Industrial Science and Technology, Kawasaki 2100821, Japan; (A.K.); (K.A.)
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 1138657, Japan
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20
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Wei YG, Yang CK, Wei ZL, Liao XW, He YF, Zhou X, Huang HS, Lan CL, Han CY, Peng T. High-Mobility Group AT-Hook 1 Served as a Prognosis Biomarker and Associated with Immune Infiltrate in Hepatocellular Carcinoma. Int J Gen Med 2022; 15:609-621. [PMID: 35058711 PMCID: PMC8765458 DOI: 10.2147/ijgm.s344858] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 12/23/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The protein high-mobility group AT-hook 1 (HMGA1) has been demonstrated that modulated cellular proliferation, invasion, and apoptosis with a poor prognosis in miscellaneous carcinomas. However, the mechanism of circumstantial carcinogenesis and association with the immune microenvironment of HMGA1 in hepatocellular carcinoma (HCC) had not been extensively explored. METHODS The gene expression, clinicopathological correlation, and prognosis analysis were performed in the data obtained from TCGA. The results were further validated by ICGC and GEO database and external validation cohort from Guangxi. The HMGA1 protein expression was further examined in the HPA database. Biological function analyses were conducted by GSEA, STRING database, and Coexpedia online tool. Using TIMER and CIBERSORT method, the relationship between immune infiltrate and HMGA1 was investigated. RESULTS In HCC, HMGA1 had much higher transcriptional and proteomic expression than in corresponding paraneoplastic tissue. Patients with high HMGA1 expression had a poor prognosis and unpromising clinicopathological features. High HMGA1 expression was closely related to the cell cycle, tumorigenesis, substance metabolism, and immune processes by regulating complex signaling pathways. Notably, HMGA1 may be associated with TP53 mutational carcinogenesis. Moreover, increased HMGA1 expression may lead to an increase in immune infiltration and a decrease in tumor purity in HCC. CIBERSORT analysis elucidated that the amount of B cell naive, B cell memory, T cells gamma delta, macrophages M2, and mast cell resting decreased when HMGA1 expression was high, whereas T cells follicular helper, macrophages M0, and Dendritic cells resting increased. CONCLUSION In conclusions, HMGA1 is a potent prognostic biomarker and a sign of immune infiltration in HCC, which may be a potential immunotherapy target for HCC.
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Affiliation(s)
- Yong-Guang Wei
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People’s Republic of China
| | - Cheng-Kun Yang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People’s Republic of China
| | - Zhong-Liu Wei
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People’s Republic of China
| | - Xi-Wen Liao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People’s Republic of China
| | - Yong-Fei He
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People’s Republic of China
| | - Xin Zhou
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People’s Republic of China
| | - Hua-Sheng Huang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People’s Republic of China
| | - Chen-Lu Lan
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People’s Republic of China
| | - Chuang-Ye Han
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People’s Republic of China
| | - Tao Peng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People’s Republic of China
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21
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Liu W, Xiong S, Zhang Y, Du J, Dong C, Yu Z, Ma X. Transcriptome Profiling Reveals Important Transcription Factors and Biological Processes in Skin Regeneration Mediated by Mechanical Stretch. Front Genet 2021; 12:757350. [PMID: 34659370 PMCID: PMC8511326 DOI: 10.3389/fgene.2021.757350] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 09/14/2021] [Indexed: 01/02/2023] Open
Abstract
Background: Mechanical stretch is utilized to promote skin regeneration during tissue expansion for reconstructive surgery. Although mechanical stretch induces characteristic morphological changes in the skin, the biological processes and molecular mechanisms involved in mechanically induced skin regeneration are not well elucidated. Methods: A male rat scalp expansion model was established and the important biological processes related to mechanical stretch-induced skin regeneration were identified using Gene Ontology (GO) analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, and gene set enrichment analysis (GSEA). Analysis was also conducted by constructing a protein–protein interaction (PPI) network, identifying key modules and hub genes, determining transcription factor (TF)-mRNA regulatory relationships, and confirming the expression pattern of the TFs and hub genes. Results: We identified nine robust hub genes (CXCL1, NEB, ACTN3, MYOZ1, ACTA1, TNNT3, PYGM, AMPD1, and CKM) that may serve as key molecules in skin growth. These genes were determined to be involved in several important biological processes, including keratinocyte differentiation, cytoskeleton reorganization, chemokine signaling pathway, glycogen metabolism, and voltage-gated ion channel activity. The potentially significant pathways, including the glucagon signaling pathway, the Wnt signaling pathway, and cytokine–cytokine receptor interaction, were distinguished. In addition, we identified six TFs (LEF1, TCF7, HMGA1, TFAP2C, FOSL1, and ELF5) and constructed regulatory TF–mRNA interaction networks. Conclusion: This study generated a comprehensive overview of the gene networks underlying mechanically induced skin regeneration. The functions of these key genes and the pathways in which they participate may reveal new aspects of skin regeneration under mechanical strain. Furthermore, the identified TF regulators can be used as potential candidates for clinical therapeutics for skin pretreatment before reconstructive surgery.
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Affiliation(s)
- Wei Liu
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shaoheng Xiong
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yu Zhang
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jing Du
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Chen Dong
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Zhou Yu
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xianjie Ma
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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22
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Strategies for genetic manipulation of adult stem cell-derived organoids. Exp Mol Med 2021; 53:1483-1494. [PMID: 34663937 PMCID: PMC8569115 DOI: 10.1038/s12276-021-00609-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 02/21/2021] [Accepted: 03/05/2021] [Indexed: 01/08/2023] Open
Abstract
Organoid technology allows the expansion of primary epithelial cells from normal and diseased tissues, providing a unique model for human (patho)biology. In a three-dimensional environment, adult stem cells self-organize and differentiate to gain tissue-specific features. Accessibility to genetic manipulation enables the investigation of the molecular mechanisms underlying cell fate regulation, cell differentiation and cell interactions. In recent years, powerful methodologies using lentiviral transgenesis, CRISPR/Cas9 gene editing, and single-cell readouts have been developed to study gene function and carry out genetic screens in organoids. However, the multicellularity and dynamic nature of stem cell-derived organoids also present challenges for genetic experimentation. In this review, we focus on adult gastrointestinal organoids and summarize the state-of-the-art protocols for successful transgenesis. We provide an outlook on emerging genetic techniques that could further increase the applicability of organoids and enhance the potential of organoid-based techniques to deepen our understanding of gene function in tissue biology.
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23
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Abstract
Neural crest stem/progenitor cells arise early during vertebrate embryogenesis at the border of the forming central nervous system. They subsequently migrate throughout the body, eventually differentiating into diverse cell types ranging from neurons and glia of the peripheral nervous system to bones of the face, portions of the heart, and pigmentation of the skin. Along the body axis, the neural crest is heterogeneous, with different subpopulations arising in the head, neck, trunk, and tail regions, each characterized by distinct migratory patterns and developmental potential. Modern genomic approaches like single-cell RNA- and ATAC-sequencing (seq) have greatly enhanced our understanding of cell lineage trajectories and gene regulatory circuitry underlying the developmental progression of neural crest cells. Here, we discuss how genomic approaches have provided new insights into old questions in neural crest biology by elucidating transcriptional and posttranscriptional mechanisms that govern neural crest formation and the establishment of axial level identity. Expected final online publication date for the Annual Review of Genetics, Volume 55 is November 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Shashank Gandhi
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California 91125, USA; ,
| | - Marianne E Bronner
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California 91125, USA; ,
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24
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Pujals M, Resar L, Villanueva J. HMGA1, Moonlighting Protein Function, and Cellular Real Estate: Location, Location, Location! Biomolecules 2021; 11:1334. [PMID: 34572547 PMCID: PMC8468999 DOI: 10.3390/biom11091334] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/27/2021] [Accepted: 09/01/2021] [Indexed: 12/13/2022] Open
Abstract
The gene encoding the High Mobility Group A1 (HMGA1) chromatin remodeling protein is upregulated in diverse cancers where high levels portend adverse clinical outcomes. Until recently, HMGA1 was assumed to be a nuclear protein exerting its role in cancer by transcriptionally modulating gene expression and downstream signaling pathways. However, the discovery of an extracellular HMGA1-RAGE autocrine loop in invasive triple-negative breast cancer (TNBC) cell lines implicates HMGA1 as a "moonlighting protein" with different functions depending upon cellular location. Here, we review the role of HMGA1, not only as a chromatin regulator in cancer and stem cells, but also as a potential secreted factor that drives tumor progression. Prior work found that HMGA1 is secreted from TNBC cell lines where it signals through the receptor for advanced glycation end products (RAGE) to foster phenotypes involved in tumor invasion and metastatic progression. Studies in primary TNBC tumors also suggest that HMGA1 secretion associates with distant metastasis in TNBC. Given the therapeutic potential to target extracellular proteins, further work to confirm this role in other contexts is warranted. Indeed, crosstalk between nuclear and secreted HMGA1 could change our understanding of tumor development and reveal novel therapeutic opportunities relevant to diverse human cancers overexpressing HMGA1.
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Affiliation(s)
- Mireia Pujals
- Vall d’Hebron Institute of Oncology (VHIO), 08035 Barcelona, Spain;
| | - Linda Resar
- Department of Medicine, Division of Hematology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Departments of Medicine (Hematology), Oncology, Pathology and Institute of Cellular Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Pathobiology, Cellular and Molecular Medicine and Human Genetics Graduate Programs, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Josep Villanueva
- Vall d’Hebron Institute of Oncology (VHIO), 08035 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
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25
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Matsubara K, Matsubara Y, Uchikura Y, Takagi K, Yano A, Sugiyama T. HMGA1 Is a Potential Driver of Preeclampsia Pathogenesis by Interference with Extravillous Trophoblasts Invasion. Biomolecules 2021; 11:biom11060822. [PMID: 34072941 PMCID: PMC8227282 DOI: 10.3390/biom11060822] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 12/18/2022] Open
Abstract
Preeclampsia (PE) is a serious disease that can be fatal for the mother and fetus. The two-stage theory has been proposed as its cause, with the first stage comprising poor placentation associated with the failure of fertilized egg implantation. Successful implantation and placentation require maternal immunotolerance of the fertilized egg as a semi-allograft and appropriate extravillous trophoblast (EVT) invasion of the decidua and myometrium. The disturbance of EVT invasion during implantation in PE results in impaired spiral artery remodeling. PE is thought to be caused by hypoxia during remodeling failure-derived poor placentation, which results in chronic inflammation. High-mobility group protein A (HMGA) is involved in the growth and invasion of cancer cells and likely in the growth and invasion of trophoblasts. Its mechanism of action is associated with immunotolerance. Thus, HMGA is thought to play a pivotal role in successful pregnancy, and its dysfunction may be related to the pathogenesis of PE. The evaluation of HMGA function and its changes in PE might confirm that it is a reliable biomarker of PE and provide prospects for PE treatment through the induction of EVT proliferation and invasion during the implantation.
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Affiliation(s)
- Keiichi Matsubara
- Department of Regional Pediatrics and Perinatology, Graduate School of Medicine, Ehime University, Ehime, Toon-shi 791-0295, Shitsukawa, Japan
- Correspondence:
| | - Yuko Matsubara
- Department of Obstetrics and Gynecology, School of Medicine, Ehime University, Ehime, Toon-shi 791-0295, Shitsukawa, Japan; (Y.M.); (Y.U.); (K.T.); (A.Y.); (T.S.)
| | - Yuka Uchikura
- Department of Obstetrics and Gynecology, School of Medicine, Ehime University, Ehime, Toon-shi 791-0295, Shitsukawa, Japan; (Y.M.); (Y.U.); (K.T.); (A.Y.); (T.S.)
| | - Katsuko Takagi
- Department of Obstetrics and Gynecology, School of Medicine, Ehime University, Ehime, Toon-shi 791-0295, Shitsukawa, Japan; (Y.M.); (Y.U.); (K.T.); (A.Y.); (T.S.)
| | - Akiko Yano
- Department of Obstetrics and Gynecology, School of Medicine, Ehime University, Ehime, Toon-shi 791-0295, Shitsukawa, Japan; (Y.M.); (Y.U.); (K.T.); (A.Y.); (T.S.)
| | - Takashi Sugiyama
- Department of Obstetrics and Gynecology, School of Medicine, Ehime University, Ehime, Toon-shi 791-0295, Shitsukawa, Japan; (Y.M.); (Y.U.); (K.T.); (A.Y.); (T.S.)
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26
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Wu X, Wang X, Shan L, Zhou J, Zhang X, Zhu E, Yuan H, Wang B. High-mobility group AT-Hook 1 mediates the role of nuclear factor I/X in osteogenic differentiation through activating canonical Wnt signaling. STEM CELLS (DAYTON, OHIO) 2021; 39:1349-1361. [PMID: 34028135 DOI: 10.1002/stem.3418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 04/29/2021] [Indexed: 11/09/2022]
Abstract
It was previously reported that the loss of the transcription factor nuclear factor I/X (NFIX) gene in mice impaired endochondral ossification and mineralization in bone. However, the cellular and molecular basis for the defect remains unexplored. In this study, we investigated if and how NFIX regulates osteoblast differentiation. Nfix mRNA was induced during osteogenic and adipogenic differentiation of progenitor cells. Loss-of-function and gain-of-function studies revealed that NFIX induced osteoblast differentiation and impaired adipocyte formation from progenitor cells. RNA-seq and promoter analysis revealed that NFIX transcriptionally stimulated the expression of high-mobility group AT-Hook 1 (HMGA1). We then demonstrated that HMGA1 stimulated osteogenic differentiation of progenitor cells at the expense of adipogenic differentiation. The effect of Nfix siRNA on the differentiation of progenitor cells could be attenuated when HMGA1 was simultaneously overexpressed. Further investigations revealed the stimulatory effect of NFIX and HMGA1 on canonical wingless-type MMTV integration site family (Wnt) signaling. HMGA1 transcriptionally activates the expression of low-density lipoprotein receptor-related protein 5. Finally, in vivo transfection of Nfix siRNA to the marrow of mice reduced osteoblasts and increased fat accumulation in the marrow, and inactivated HMGA1/β-catenin signaling in bone marrow mesenchymal stem cells. This study suggests that HMGA1 plays a role in osteoblast commitment and mediates the function of NFIX through transcriptionally activating canonical Wnt signaling.
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Affiliation(s)
- Xiaowen Wu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin Medical University, Tianjin, People's Republic of China
| | - Xiaochen Wang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin Medical University, Tianjin, People's Republic of China
| | - Liying Shan
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin Medical University, Tianjin, People's Republic of China
| | - Jie Zhou
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin Medical University, Tianjin, People's Republic of China
| | - Xin Zhang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin Medical University, Tianjin, People's Republic of China
| | - Endong Zhu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin Medical University, Tianjin, People's Republic of China
| | - Hairui Yuan
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin Medical University, Tianjin, People's Republic of China
| | - Baoli Wang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin Medical University, Tianjin, People's Republic of China
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27
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Zhang X, Deng HW, Shen H, Ehrlich M. Prioritization of Osteoporosis-Associated Genome-wide Association Study (GWAS) Single-Nucleotide Polymorphisms (SNPs) Using Epigenomics and Transcriptomics. JBMR Plus 2021; 5:e10481. [PMID: 33977200 PMCID: PMC8101624 DOI: 10.1002/jbm4.10481] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 01/10/2021] [Accepted: 02/19/2021] [Indexed: 12/15/2022] Open
Abstract
Genetic risk factors for osteoporosis, a prevalent disease associated with aging, have been examined in many genome-wide association studies (GWASs). A major challenge is to prioritize transcription-regulatory GWAS-derived variants that are likely to be functional. Given the critical role of epigenetics in gene regulation, we have used an unusual epigenetics-based and transcription-based approach to identify some of the credible regulatory single-nucleotide polymorphisms (SNPs) relevant to osteoporosis from 38 reported bone mineral density (BMD) GWASs. Using Roadmap databases, we prioritized SNPs based upon their overlap with strong enhancer or promoter chromatin preferentially in osteoblasts relative to 12 heterologous cell culture types. We also required that these SNPs overlap open chromatin (Deoxyribonuclease I [DNaseI]-hypersensitive sites) and DNA sequences predicted to bind to osteoblast-relevant transcription factors in an allele-specific manner. From >50,000 GWAS-derived SNPs, we identified 14 novel and credible regulatory SNPs (Tier-1 SNPs) for osteoporosis risk. Their associated genes, BICC1, LGR4, DAAM2, NPR3, or HMGA2, are involved in osteoblastogenesis or bone homeostasis and regulate cell signaling or enhancer function. Four of these genes are preferentially expressed in osteoblasts. BICC1, LGR4, and DAAM2 play important roles in canonical Wnt signaling, a pathway critical for bone formation and repair. The transcription factors predicted to bind to the Tier-1 SNP-containing DNA sequences also have bone-related functions. We present evidence that some of the Tier-1 SNPs exert their effects on BMD risk indirectly through little-studied long noncoding RNA (lncRNA) genes, which may, in turn, control the nearby bone-related protein-encoding gene. Our study illustrates a method to identify novel BMD-related causal regulatory SNPs for future study and to prioritize candidate regulatory GWAS-derived SNPs, in general. © 2021 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Xiao Zhang
- Tulane Center for Biomedical Informatics and Genomics, Deming Department of Medicine, School of Medicine Tulane University New Orleans LA USA
| | - Hong-Wen Deng
- Tulane Center for Biomedical Informatics and Genomics, Deming Department of Medicine, School of Medicine Tulane University New Orleans LA USA
| | - Hui Shen
- Tulane Center for Biomedical Informatics and Genomics, Deming Department of Medicine, School of Medicine Tulane University New Orleans LA USA
| | - Melanie Ehrlich
- Tulane Center for Biomedical Informatics and Genomics, Deming Department of Medicine, School of Medicine Tulane University New Orleans LA USA.,Tulane Cancer Center and Hayward Genetics Center Tulane University New Orleans LA USA
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28
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Li Z, Liu J, Chen T, Sun R, Liu Z, Qiu B, Xu Y, Zhang Z. HMGA1-TRIP13 axis promotes stemness and epithelial mesenchymal transition of perihilar cholangiocarcinoma in a positive feedback loop dependent on c-Myc. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:86. [PMID: 33648560 PMCID: PMC7923631 DOI: 10.1186/s13046-021-01890-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 02/21/2021] [Indexed: 01/04/2023]
Abstract
Background Cholangiocarcinoma is a highly malignant cancer with very dismal prognosis. Perihilar cholangiocarcinoma(pCCA) accounts for more than 50% of all cholangiocarcinoma and is well-characterized for its low rate of radical resection. Effects of radiotherapy and chemotherapy of pCCA are very limited. Methods Here we screened potential biomarkers of pCCA with transcriptome sequencing and evaluated the prognostic significance of HMGA1 in a large cohort pCCA consisting of 106 patients. With bioinformatics and in vitro/vivo experiments, we showed that HMGA1 induced tumor cell stemness and epithelial-mesenchymal-transition (EMT), and thus facilitated proliferation, migration and invasion by promoting TRIP13 transcription. Moreover, TRIP13 was also an unfavorable prognostic biomarker of pCCA, and double high expression of HMGA1/TRIP13 could predict prognosis more sensitively. TRIP13 promoted pCCA progression by suppressing FBXW7 transcription and stabilizing c-Myc. c-Myc in turn induced the transcription and expression of both HMGA1 and TRIP13, indicating that HMGA-TRIP13 axis facilitated pCCA stemness and EMT in a positive feedback pathway. Conclusions HMGA1 and TRIP13 were unfavorable prognostic biomarkers of pCCA. HMGA1 enhanced pCCA proliferation, migration, invasion, stemness and EMT, by inducing TRIP13 expression, suppressing FBXW7 expression and stabilizing c-Myc. Moreover, c-Myc can induce the transcription of HMGA1 and TRIP13, suggesting that HMGA-TRIP13 axis promoted EMT and stemness in a positive feedback pathway dependent on c-Myc. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-01890-1.
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Affiliation(s)
- Zhipeng Li
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, China.,Department of General Surgery, Shandong Second Provincial General Hospital, Shandong Provincial ENT Hospital, Jinan, China
| | - Jialiang Liu
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, China
| | - Tianli Chen
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, China
| | - Rongqi Sun
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, China
| | - Zengli Liu
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, China
| | - Bo Qiu
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, China
| | - Yunfei Xu
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, China.
| | - Zongli Zhang
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, China.
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29
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Li G, Luo W, Wang B, Qian C, Ye Y, Li Y, Zhang S. HMGA1 Induction of miR-103/107 Forms a Negative Feedback Loop to Regulate Autophagy in MPTP Model of Parkinson's Disease. Front Cell Neurosci 2021; 14:620020. [PMID: 33536877 PMCID: PMC7847849 DOI: 10.3389/fncel.2020.620020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 12/09/2020] [Indexed: 11/18/2022] Open
Abstract
Autophagy dysfunction has been directly linked with the onset and progression of Parkinson’s disease (PD), but the underlying mechanisms are not well understood. High-mobility group A1 (HMGA1), well-known chromatin remodeling proteins, play pivotal roles in diverse biological processes and diseases. Their function in neural cell death in PD, however, have not yet been fully elucidated. Here, we report that HMGA1 is highly induced during dopaminergic cell death in vitro and mice models of PD in vivo. Functional studies using genetic knockdown of endogenous HMGA1 show that HMGA1 signaling inhibition accelerates neural cell death, at least partially through aggravating MPP+-induced autophagic flux reduction resulting from partial block in autophagic flux at the terminal stages, indicating a novel potential neuroprotective role for HMGA1 in dopaminergic neurons death. MicroRNA-103/107 (miR-103/107) family, which is highly expressed in neuron, coordinately ensures proper end-stage autophagy. We further illustrate that MPP+/1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced HMGA1 elevation counterparts the effect of miR-103/107 downregulation by directly binding to their promoters, respectively, sustaining their expression in MPP+-damaged MN9D cells and modulates autophagy through CDK5R1/CDK5 signaling pathway. We also find that HMGA1 is a direct target of miR-103/107 family. Thus, our results suggest that HMGA1 forms a negative feedback loop with miR-103/107-CDK5R1/CDK5 signaling to regulate the MPP+/MPTP-induced autophagy impairment and neural cell death. Collectively, we identify a paradigm for compensatory neuroprotective HMGA1 signaling in dopaminergic neurons that could have important therapeutic implications for PD.
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Affiliation(s)
- Gehui Li
- Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The National Key Clinical Specialty, Department of Neurosurgery, The Engineering Technology Research Center of Education Ministry of China, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Department of Anesthesiology, Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Wanxian Luo
- Department of Medicine Ultrasonics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Baoyan Wang
- Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The National Key Clinical Specialty, Department of Neurosurgery, The Engineering Technology Research Center of Education Ministry of China, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Chen Qian
- Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The National Key Clinical Specialty, Department of Neurosurgery, The Engineering Technology Research Center of Education Ministry of China, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yongyi Ye
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yuantao Li
- Department of Anesthesiology, Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Shizhong Zhang
- Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The National Key Clinical Specialty, Department of Neurosurgery, The Engineering Technology Research Center of Education Ministry of China, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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30
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Kim JH, Li L, Resar LM. Doubling up on function: dual-specificity tyrosine-regulated kinase 1A (DYRK1A) in B cell acute lymphoblastic leukemia. J Clin Invest 2021; 131:142627. [PMID: 33393492 PMCID: PMC7773367 DOI: 10.1172/jci142627] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
DYRK1A, the dual-specificity kinase, is again doubling up on function, as reported by Bhansali, Rammohan, and colleagues in this issue of the JCI. DYRK1A is an evolutionarily conserved protein kinase with dual specificity; it adds phosphates to serine/threonine residues of diverse regulatory proteins and activates its own function by autophosphorylating a critical tyrosine at position 321 in the activation loop. Bhansali, Rammohan, and colleagues investigated B cell acute lymphoblastic leukemia (B-ALL) in individuals with Down syndrome (DS) and in children with leukemia characterized by aneuploidy. The study revealed a DYRK1A/FOXO1 and STAT3 signaling pathway in B-ALL that could be targeted pharmacologically, thus opening the door to therapeutic strategies for patients with leukemia with or without DS.
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Affiliation(s)
| | - Liping Li
- Department of Medicine, Division of Hematology
| | - Linda M.S. Resar
- Department of Medicine, Division of Hematology
- Departments of Oncology and Pathology, and Institute of Cellular Engineering, and
- Pathobiology, Human Genetics, and Cellular and Molecular Medicine Graduate Programs, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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31
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Thakur N, Thakur S, Chatterjee S, Das J, Sil PC. Nanoparticles as Smart Carriers for Enhanced Cancer Immunotherapy. Front Chem 2020; 8:597806. [PMID: 33409265 PMCID: PMC7779678 DOI: 10.3389/fchem.2020.597806] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 11/30/2020] [Indexed: 12/24/2022] Open
Abstract
Cancer immunotherapy has emerged as a promising strategy for the treatment of many forms of cancer by stimulating body's own immune system. This therapy not only eradicates tumor cells by inducing strong anti-tumor immune response but also prevent their recurrence. The clinical cancer immunotherapy faces some insurmountable challenges including high immune-mediated toxicity, lack of effective and targeted delivery of cancer antigens to immune cells and off-target side effects. However, nanotechnology offers some solutions to overcome those limitations, and thus can potentiate the efficacy of immunotherapy. This review focuses on the advancement of nanoparticle-mediated delivery of immunostimulating agents for efficient cancer immunotherapy. Here we have outlined the use of the immunostimulatory nanoparticles as a smart carrier for effective delivery of cancer antigens and adjuvants, type of interactions between nanoparticles and the antigen/adjuvant as well as the factors controlling the interaction between nanoparticles and the receptors on antigen presenting cells. Besides, the role of nanoparticles in targeting/activating immune cells and modulating the immunosuppressive tumor microenvironment has also been discussed extensively. Finally, we have summarized some theranostic applications of the immunomodulatory nanomaterials in treating cancers based on the earlier published reports.
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Affiliation(s)
- Neelam Thakur
- Himalayan Centre for Excellence in Nanotechnology, Shoolini University, Solan, India
- School of Advanced Chemical Sciences, Faculty of Basic Sciences, Shoolini University, Solan, India
| | - Saloni Thakur
- Himalayan Centre for Excellence in Nanotechnology, Shoolini University, Solan, India
- Faculty of Applied Sciences and Biotechnology, Shoolini University, Solan, India
| | | | - Joydeep Das
- Himalayan Centre for Excellence in Nanotechnology, Shoolini University, Solan, India
- School of Advanced Chemical Sciences, Faculty of Basic Sciences, Shoolini University, Solan, India
| | - Parames C. Sil
- Division of Molecular Medicine, Bose Institute, Kolkata, India
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Elmentaite R, Ross ADB, Roberts K, James KR, Ortmann D, Gomes T, Nayak K, Tuck L, Pritchard S, Bayraktar OA, Heuschkel R, Vallier L, Teichmann SA, Zilbauer M. Single-Cell Sequencing of Developing Human Gut Reveals Transcriptional Links to Childhood Crohn's Disease. Dev Cell 2020; 55:771-783.e5. [PMID: 33290721 PMCID: PMC7762816 DOI: 10.1016/j.devcel.2020.11.010] [Citation(s) in RCA: 143] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 09/04/2020] [Accepted: 11/06/2020] [Indexed: 02/07/2023]
Abstract
Human gut development requires the orchestrated interaction of differentiating cell types. Here, we generate an in-depth single-cell map of the developing human intestine at 6–10 weeks post-conception. Our analysis reveals the transcriptional profile of cycling epithelial precursor cells; distinct from LGR5-expressing cells. We propose that these cells may contribute to differentiated cell subsets via the generation of LGR5-expressing stem cells and receive signals from surrounding mesenchymal cells. Furthermore, we draw parallels between the transcriptomes of ex vivo tissues and in vitro fetal organoids, revealing the maturation of organoid cultures in a dish. Lastly, we compare scRNA-seq profiles from pediatric Crohn’s disease epithelium alongside matched healthy controls to reveal disease-associated changes in the epithelial composition. Contrasting these with the fetal profiles reveals the re-activation of fetal transcription factors in Crohn’s disease. Our study provides a resource available at www.gutcellatlas.org, and underscores the importance of unraveling fetal development in understanding disease. Single-cell RNA-seq map of the developing and pediatric human intestine Cycling BEX5+ epithelial precursors are distinct from adult LGR5+ stem cells Human fetal intestinal organoids mature in culture Fetal transcription factors are reactivated in the Crohn’s disease epithelium
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Affiliation(s)
- Rasa Elmentaite
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Alexander D B Ross
- Wellcome Trust, MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge CB2 0SZ, UK; Department of Surgery, University of Cambridge, Cambridge CB2 0QQ, UK; Department of Paediatrics, University of Cambridge, Cambridge CB2 0QQ, UK
| | - Kenny Roberts
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Kylie R James
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Daniel Ortmann
- Wellcome Trust, MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge CB2 0SZ, UK; Department of Surgery, University of Cambridge, Cambridge CB2 0QQ, UK
| | - Tomás Gomes
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Komal Nayak
- Department of Paediatrics, University of Cambridge, Cambridge CB2 0QQ, UK
| | - Liz Tuck
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Sophie Pritchard
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | | | - Robert Heuschkel
- Department of Paediatric Gastroenterology, Hepatology and Nutrition, Cambridge University Hospitals Trust, Cambridge CB2 0QQ, UK
| | - Ludovic Vallier
- Wellcome Trust, MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge CB2 0SZ, UK; Department of Surgery, University of Cambridge, Cambridge CB2 0QQ, UK
| | - Sarah A Teichmann
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK; Theory of Condensed Matter, Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge CB3 0HE, UK; European Molecular Biology Laboratory, European Bioinformatics Institute (EBI), Wellcome Genome Campus, Hinxton CB10 1SA, UK.
| | - Matthias Zilbauer
- Wellcome Trust, MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge CB2 0SZ, UK; Department of Paediatrics, University of Cambridge, Cambridge CB2 0QQ, UK; Department of Paediatric Gastroenterology, Hepatology and Nutrition, Cambridge University Hospitals Trust, Cambridge CB2 0QQ, UK.
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Wang X, Wang J, Wu J. Emerging roles for HMGA2 in colorectal cancer. Transl Oncol 2020; 14:100894. [PMID: 33069103 PMCID: PMC7563012 DOI: 10.1016/j.tranon.2020.100894] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/08/2020] [Accepted: 09/21/2020] [Indexed: 02/08/2023] Open
Abstract
HMGA2 (High Mobility Group AT-hook 2) has been reported to promote colorectal cancer (CRC) development by regulating the transcription of target genes. It participates in nearly all aspects of cellular processes, including cell transformation, proliferation, apoptosis, senescence, metastasis, epithelial-to-mesenchymal transition (EMT), DNA repair and stem cell self-renewal. In the past decades, a group of downstream targets and binding partners have been identified in a wide range of cancers. Our findings of HMGA2 as a key factor in the MDM2/p53, IL11/STAT3 and Wnt/β-catenin signaling pathways prompt us to summarize current advances in the functional and molecular basis of HMGA2 in CRC. In this review, we address the roles of HMGA2 in the oncogenic networks of CRC based on recent advances. We review its aberrant expression, explore underlying mechanisms, discuss its pro-tumorigenic effects, and highlight promising small-molecule inhibitors based on targeting HMGA2 here. However, the understanding of HMGA2 in CRC progression is still elusive, thus we also discuss the future perspectives in this review. Collectively, this review provides novel insights into the oncogenic properties of HMGA2, which has potential implications in the diagnosis and treatment of CRC. HMGA2 promotes colorectal cancer (CRC) development by regulating the transcriptions of target genes. Circulating cell-free HMGA2 mRNA has been identified as a potential screening marker in CRC. HMGA2 appears to be a key factor in the networks of MDM2/p53, IL11/STAT3 and Wnt/β-catenin signaling pathways in CRC. Many agents and siRNAs serve as potential therapeutic approaches by targeting HMGA2 for the treatment of CRC. Deciphering HMGA2-mediated machinery helps to conceive effective therapy strategies and develop novel inhibitors in CRC.
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Affiliation(s)
- Xin Wang
- Department of Pathology & Pathophysiology, Department of Colorectal Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jian Wang
- Department of Colorectal Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
| | - Jingjing Wu
- Department of Pathology & Pathophysiology, Department of Colorectal Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
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Yang M, Guo Y, Liu X, Liu N. HMGA1 Promotes Hepatic Metastasis of Colorectal Cancer by Inducing Expression of Glucose Transporter 3 (GLUT3). Med Sci Monit 2020; 26:e924975. [PMID: 32989212 PMCID: PMC7532698 DOI: 10.12659/msm.924975] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background Colorectal cancer (CRC) is one of the most common cancers worldwide, and more than half of CRC patients have CRC liver metastasis (CRCLM). Mounting evidence indicates that high mobility group protein A1(HMGA1) is overexpressed in many cancer types, but its role in CRCLM has been obscure. Material/Methods Using immunohistochemistry, we assessed the expression of HMGA1 in 73 patients with CRCLM, and compared HMGA1 mRNA in 17 pairs of CRCs, CRCLM tissues, and normal liver tissues. The clinical significance of HMGA1 was evaluated by analyzing its correlation with the clinicopathological factors and overall survival (OS) rates. The function of HMGA1 in CRC invasion was investigated and the underlying mechanism of HMGA1-induced invasion was explored with in vitro experiments. Results In CRCLMs, the high-HMGA1 and low-HMGA1 patients accounted for 53.42% and 46.58% of all patients, respectively. High HMGA1 expression in CRCLM was significantly associated with low OS rates. In vitro experiments demonstrated that HMGA1 promoted glucose transporter 3 (GLUT3) transcription and expression in CRC cells. GLUT3 was required in HMGA1-involved invasion, and GLUT3 expression was associated with poor prognosis of CRCLM. Conclusions High HMGA1 and GLUT3 expression in CRCLM was significantly correlated with poor prognosis of CRCLM. HMGA1 promoted CRC invasion by elevating GLUT3 transcription and expression.
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Affiliation(s)
- Meijing Yang
- Department of Geriatrics, YIDU Central Hospital, Weifang, Shandong, China (mainland)
| | - Yang Guo
- Department of Geriatrics, YIDU Central Hospital, Weifang, Shandong, China (mainland)
| | - Xiaoyun Liu
- Department of Cardiology, YIDU Central Hospital, Weifang, Shandong, China (mainland)
| | - Naiqing Liu
- Department of General Surgery, Linyi Central Hospital, Linyi, Shandong, China (mainland)
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Gandhi S, Hutchins EJ, Maruszko K, Park JH, Thomson M, Bronner ME. Bimodal function of chromatin remodeler Hmga1 in neural crest induction and Wnt-dependent emigration. eLife 2020; 9:57779. [PMID: 32965216 PMCID: PMC7591248 DOI: 10.7554/elife.57779] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 09/23/2020] [Indexed: 12/12/2022] Open
Abstract
During gastrulation, neural crest cells are specified at the neural plate border, as characterized by Pax7 expression. Using single-cell RNA sequencing coupled with high-resolution in situ hybridization to identify novel transcriptional regulators, we show that chromatin remodeler Hmga1 is highly expressed prior to specification and maintained in migrating chick neural crest cells. Temporally controlled CRISPR-Cas9-mediated knockouts uncovered two distinct functions of Hmga1 in neural crest development. At the neural plate border, Hmga1 regulates Pax7-dependent neural crest lineage specification. At premigratory stages, a second role manifests where Hmga1 loss reduces cranial crest emigration from the dorsal neural tube independent of Pax7. Interestingly, this is rescued by stabilized ß-catenin, thus implicating Hmga1 as a canonical Wnt activator. Together, our results show that Hmga1 functions in a bimodal manner during neural crest development to regulate specification at the neural plate border, and subsequent emigration from the neural tube via canonical Wnt signaling. The neural plate is a structure that serves as the basis for the brain and central nervous system during the development of animals with a backbone. In particular, the tissues at the border of the neural plate become the neural crest, a group of highly mobile cells that can specialize to form nerves and parts of the face. The exact molecular mechanisms that allow the crest to emerge are still unknown. The protein Hmga1 alters how genes are packaged and organized inside cells, which in turn influences how genes are switched on and off. Here, Gandhi et al. studied how Hmga1 helps to shape the neural crest in developing chicken embryos. To do so, they harnessed a genetic tool called CRISPR-Cas9, and deleted the gene that encodes Hmga1 at specific developmental stages. This manipulation highlighted two periods where Hmga1 is active. First, Hmga1 helped to define neural crest cells at the neural plate border by activating a gene called pax7. Then, at a later stage, Hmga1 allowed these cells to move to other parts of the body by triggering the Wnt communication system. Failure for the neural crest to develop properly causes birth defects and cancers such as melanoma and childhood neuroblastoma, highlighting the need to better understand how this structure is formed. In addition, a better grasp of the roles of Hmga1 in healthy development could help to appreciate how it participates in a range of adult cancers.
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Affiliation(s)
- Shashank Gandhi
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Erica J Hutchins
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Krystyna Maruszko
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Jong H Park
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Matthew Thomson
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Marianne E Bronner
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, United States
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Gao YL, Shao LH, Dong LH, Chang PY. Gut commensal bacteria, Paneth cells and their relations to radiation enteropathy. World J Stem Cells 2020; 12:188-202. [PMID: 32266051 PMCID: PMC7118286 DOI: 10.4252/wjsc.v12.i3.188] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/12/2019] [Accepted: 02/18/2020] [Indexed: 02/06/2023] Open
Abstract
In steady state, the intestinal epithelium forms an important part of the gut barrier to defend against luminal bacterial attack. However, the intestinal epithelium is compromised by ionizing irradiation due to its inherent self-renewing capacity. In this process, small intestinal bacterial overgrowth is a critical event that reciprocally alters the immune milieu. In other words, intestinal bacterial dysbiosis induces inflammation in response to intestinal injuries, thus influencing the repair process of irradiated lesions. In fact, it is accepted that commensal bacteria can generally enhance the host radiation sensitivity. To address the determination of radiation sensitivity, we hypothesize that Paneth cells press a critical “button” because these cells are central to intestinal health and disease by using their peptides, which are responsible for controlling stem cell development in the small intestine and luminal bacterial diversity. Herein, the most important question is whether Paneth cells alter their secretion profiles in the situation of ionizing irradiation. On this basis, the tolerance of Paneth cells to ionizing radiation and related mechanisms by which radiation affects Paneth cell survival and death will be discussed in this review. We hope that the relevant results will be helpful in developing new approaches against radiation enteropathy.
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Affiliation(s)
- Yan-Li Gao
- Department of Pediatric Ultrasound, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Li-Hong Shao
- Department of Radiation Oncology and Therapy, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
- Jilin Provincial Key Laboratory of Radiation Oncology and Therapy, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Li-Hua Dong
- Department of Radiation Oncology and Therapy, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
- Jilin Provincial Key Laboratory of Radiation Oncology and Therapy, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Peng-Yu Chang
- Department of Radiation Oncology and Therapy, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
- Jilin Provincial Key Laboratory of Radiation Oncology and Therapy, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
- Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun 130061, Jilin Province, China
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E. MP, Liu T, Zhang X, Yang H, Wang J, Huang R, Wang Y. High-mobility group A1 ( HMGA1) gene expressions in various colorectal cancer cell lines and correlation with prognosis. Transl Cancer Res 2020; 9:763-773. [PMID: 35117422 PMCID: PMC8798761 DOI: 10.21037/tcr.2019.12.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Accepted: 11/15/2019] [Indexed: 11/14/2022]
Abstract
BACKGROUND The high-mobility group A1 gene (HMGA1) plays a major role in the development of malignant cancers. However, the mechanisms underlying the correlation between HMGA1 expression level and patients' overall survival rate in various malignant cancers is unclear. METHODS We used The Cancer Genome Atlas (TCGA) database (https://genome-cancer.ucsc.edu/) to search for mRNA expression levels of HMGA1 in tumor patients and grouped them by receiver operating characteristic (ROC) curve. This divided patients into a high expression cohort and low expression cohort, and Kaplan-Meier analysis revealed the overall survival of the cancer patients. We also used real-time quantitative PCR (qPCR) to detect the expression of HMGA1, CBX7, E-cadherin, and β-catenin gene was detected by normalized to the expression of β-actin in colorectal cancer cell lines. RESULTS High expression group correlated with worse survival prognosis statistically significant (P<0.05), and scatter plots showed HMGA1 high expression in the different cancers (lung cancers; lung adenocarcinoma and lung squamous cell carcinoma; stomach and colorectal cancers; liver and pancreatic cancer; kidney papillary cell carcinoma; kidney clear cell carcinoma, brain lower grade glioma; adrenocortical cancer; acute myeloid leukemia; and sarcoma; head and neck squamous cell carcinoma, cholangio and bladder urothelial cancers). Further, we also found that the mRNA expressions of HMGA1, CBX7, E-cadherin, and β-catenin genes significantly in colorectal cancer cell lines (P value: 0.0005), consistent with the results of HMGA1 in TCGA database. CONCLUSIONS HMGA1 is highly expressed in various cancers than normal tissues, and high expression levels of HMGA1 correlated with a worse prognosis. The gene expressions and the TCGA data clearly supports that targeting HMGA1 in the management of cancers increases the survival rate of cancer patients.
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Affiliation(s)
- Maruthi Prasad E.
- Department of Pathology, The First Affiliated Hospital of Soochow University, Suzhou 215000, China
- Department of Cell Biology and Genetics, Shenzhen Key of Laboratory of Translational Medicine of Tumor, Shenzhen University Health Science Center, Shenzhen 518060, China
| | - Ting Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - Xiang Zhang
- Department of Gynecologic Radiation Oncology, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Hongli Yang
- Department of Pathology, The First Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - Jing Wang
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou 215123, China
| | - Renpeng Huang
- Department of Pathology, The First Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - Yuhong Wang
- Department of Pathology, The First Affiliated Hospital of Soochow University, Suzhou 215000, China
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HMGA Genes and Proteins in Development and Evolution. Int J Mol Sci 2020; 21:ijms21020654. [PMID: 31963852 PMCID: PMC7013770 DOI: 10.3390/ijms21020654] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 12/16/2022] Open
Abstract
HMGA (high mobility group A) (HMGA1 and HMGA2) are small non-histone proteins that can bind DNA and modify chromatin state, thus modulating the accessibility of regulatory factors to the DNA and contributing to the overall panorama of gene expression tuning. In general, they are abundantly expressed during embryogenesis, but are downregulated in the adult differentiated tissues. In the present review, we summarize some aspects of their role during development, also dealing with relevant studies that have shed light on their functioning in cell biology and with emerging possible involvement of HMGA1 and HMGA2 in evolutionary biology.
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Parisi S, Piscitelli S, Passaro F, Russo T. HMGA Proteins in Stemness and Differentiation of Embryonic and Adult Stem Cells. Int J Mol Sci 2020; 21:E362. [PMID: 31935816 PMCID: PMC6981681 DOI: 10.3390/ijms21010362] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/18/2019] [Accepted: 01/03/2020] [Indexed: 12/16/2022] Open
Abstract
HMGA1 and HMGA2 are chromatin architectural proteins that do not have transcriptional activity per se, but are able to modify chromatin structure by interacting with the transcriptional machinery and thus negatively or positively regulate the transcription of several genes. They have been extensively studied in cancer where they are often found to be overexpressed but their functions under physiologic conditions have still not been completely addressed. Hmga1 and Hmga2 are expressed during the early stages of mouse development, whereas they are not detectable in most adult tissues. Hmga overexpression or knockout studies in mouse have pointed to a key function in the development of the embryo and of various tissues. HMGA proteins are expressed in embryonic stem cells and in some adult stem cells and numerous experimental data have indicated that they play a fundamental role in the maintenance of stemness and in the regulation of differentiation. In this review, we discuss available experimental data on HMGA1 and HMGA2 functions in governing embryonic and adult stem cell fate. Moreover, based on the available evidence, we will aim to outline how HMGA expression is regulated in different contexts and how these two proteins contribute to the regulation of gene expression and chromatin architecture in stem cells.
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Affiliation(s)
- Silvia Parisi
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy (F.P.); (T.R.)
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Nacarelli T, Fukumoto T, Zundell JA, Fatkhutdinov N, Jean S, Cadungog MG, Borowsky ME, Zhang R. NAMPT Inhibition Suppresses Cancer Stem-like Cells Associated with Therapy-Induced Senescence in Ovarian Cancer. Cancer Res 2019; 80:890-900. [PMID: 31857293 DOI: 10.1158/0008-5472.can-19-2830] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/15/2019] [Accepted: 12/13/2019] [Indexed: 12/19/2022]
Abstract
Epithelial ovarian cancer (EOC) is the most lethal of gynecologic malignancies. The standard-of-care treatment for EOC is platinum-based chemotherapy such as cisplatin. Platinum-based chemotherapy induces cellular senescence. Notably, therapy-induced senescence contributes to chemoresistance by inducing cancer stem-like cells (CSC). However, therapeutic approaches targeting senescence-associated CSCs remain to be explored. Here, we show that nicotinamide phosphoribosyltransferase (NAMPT) inhibition suppresses senescence-associated CSCs induced by platinum-based chemotherapy in EOC. Clinically applicable NAMPT inhibitors suppressed the outgrowth of cisplatin-treated EOC cells both in vitro and in vivo. Moreover, a combination of the NAMPT inhibitor FK866 and cisplatin improved the survival of EOC-bearing mice. These phenotypes correlated with inhibition of the CSCs signature, which consists of elevated expression of ALDH1A1 and stem-related genes, high aldehyde dehydrogenase activity, and CD133 positivity. Mechanistically, NAMPT regulates EOC CSCs in a paracrine manner through the senescence-associated secretory phenotype. Our results suggest that targeting NAMPT using clinically applicable NAMPT inhibitors, such as FK866, in conjunction with platinum-based chemotherapy represents a promising therapeutic strategy by suppressing therapy-induced senescence-associated CSCs. SIGNIFICANCE: This study highlights the importance of NAMPT-mediated NAD+ biosynthesis in the production of cisplatin-induced senescence-associated cancer stem cells, as well as tumor relapse after cisplatin treatment.
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Affiliation(s)
- Timothy Nacarelli
- Gene Expression and Regulation Program, The Wistar Institute, Philadelphia, Pennsylvania
| | - Takeshi Fukumoto
- Gene Expression and Regulation Program, The Wistar Institute, Philadelphia, Pennsylvania
| | - Joseph A Zundell
- Gene Expression and Regulation Program, The Wistar Institute, Philadelphia, Pennsylvania
| | - Nail Fatkhutdinov
- Gene Expression and Regulation Program, The Wistar Institute, Philadelphia, Pennsylvania
| | - Stephanie Jean
- Helen F. Graham Cancer Center & Research Institute, Newark, Delaware
| | - Mark G Cadungog
- Helen F. Graham Cancer Center & Research Institute, Newark, Delaware
| | - Mark E Borowsky
- Helen F. Graham Cancer Center & Research Institute, Newark, Delaware
| | - Rugang Zhang
- Gene Expression and Regulation Program, The Wistar Institute, Philadelphia, Pennsylvania.
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Zhang W, Zhao H, Chen K, Huang Y. Overexpressing of POU2F2 accelerates fracture healing via regulating HMGA1/Wnt/β-catenin signaling pathway. Biosci Biotechnol Biochem 2019; 84:491-499. [PMID: 31782345 DOI: 10.1080/09168451.2019.1695574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
To elucidate the role of POU2F2 (POU class 2 homeobox 2) in fracture healing, 30 rats with femoral fracture were randomly grouped into three groups: FF group, LV-POU2F2 group and LV-scramble group. Rats were injected with PBS, lentivirus expressing POU2F2 or scramble lentivirus once a week for 4 weeks. Results showed that overexpressing of POU2F2 promoted fracture healing and callus growth. Besides, overexpressing of POU2F2 promoted protein and mRNA expression of Col10a1, Runx2, Osterix, and Osteocalcin. High Mobility Group AT-hook 1 (HMGA1) is a non-histone protein participating in chromatin remodeling of cells. Western blotting manifested HMGA1/Wnt/β-catenin pathway was activated in POU2F2 group. Moreover, in-vitro study of hMSCs cells supported the above data. In conclusion, POU2F2 promotes fracture healing via activating the HMGA1/Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Wei Zhang
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Hanke Zhao
- Department of Orthopedics, Changzhou Wujin People's Hospital, Changzhou, China
| | - Kun Chen
- Department of Orthopedics, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ye Huang
- Department of Orthopedics, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Clinical Implications of Extracellular HMGA1 in Breast Cancer. Int J Mol Sci 2019; 20:ijms20235950. [PMID: 31779212 PMCID: PMC6928815 DOI: 10.3390/ijms20235950] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/19/2019] [Accepted: 11/22/2019] [Indexed: 02/06/2023] Open
Abstract
The unconventional secretion of proteins is generally caused by cellular stress. During the tumorigenesis, tumor cells experience high levels of stress, and the secretion of some theoretically intracellular proteins is activated. Once in the extracellular space, these proteins play different paracrine and autocrine roles and could represent a vulnerability of cancer. One of these proteins is the high mobility group A1 (HMGA1), which is frequently overexpressed in tumors and presents a low expression in normal adult tissues. We have recently described that HMGA1 establishes an autocrine loop in invasive triple-negative breast cancer (TNBC) cells. The secretion of HMGA1 and its binding to the receptor for advanced glycation end products (RAGE) mediates the migration, invasion, and metastasis of TNBC cells and predicts the onset of metastasis in these patients. In this review, we summarized different strategies to exploit the novel tumorigenic phenotype mediated by extracellular HMGA1. We envisioned future clinical applications where the association between its change in subcellular localization and breast cancer progression could be used to predict tumor aggressiveness and guide treatment decisions. Furthermore, we proposed that targeting extracellular HMGA1 as monotherapy using monoclonal antibodies, or in combination with chemotherapy and other targeted therapies, could bring new therapeutic options for TNBC patients.
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Gorbounov M, Carleton NM, Asch-Kendrick RJ, Xian L, Rooper L, Chia L, Cimino-Mathews A, Cope L, Meeker A, Stearns V, Veltri RW, Bae YK, Resar LMS. High mobility group A1 (HMGA1) protein and gene expression correlate with ER-negativity and poor outcomes in breast cancer. Breast Cancer Res Treat 2019; 179:25-35. [DOI: 10.1007/s10549-019-05419-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 08/22/2019] [Indexed: 12/16/2022]
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Feng X, Xu W, Li Z, Song W, Ding J, Chen X. Immunomodulatory Nanosystems. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900101. [PMID: 31508270 PMCID: PMC6724480 DOI: 10.1002/advs.201900101] [Citation(s) in RCA: 219] [Impact Index Per Article: 43.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 04/21/2019] [Indexed: 05/15/2023]
Abstract
Immunotherapy has emerged as an effective strategy for the prevention and treatment of a variety of diseases, including cancer, infectious diseases, inflammatory diseases, and autoimmune diseases. Immunomodulatory nanosystems can readily improve the therapeutic effects and simultaneously overcome many obstacles facing the treatment method, such as inadequate immune stimulation, off-target side effects, and bioactivity loss of immune agents during circulation. In recent years, researchers have continuously developed nanomaterials with new structures, properties, and functions. This Review provides the most recent advances of nanotechnology for immunostimulation and immunosuppression. In cancer immunotherapy, nanosystems play an essential role in immune cell activation and tumor microenvironment modulation, as well as combination with other antitumor approaches. In infectious diseases, many encouraging outcomes from using nanomaterial vaccines against viral and bacterial infections have been reported. In addition, nanoparticles also potentiate the effects of immunosuppressive immune cells for the treatment of inflammatory and autoimmune diseases. Finally, the challenges and prospects of applying nanotechnology to modulate immunotherapy are discussed.
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Affiliation(s)
- Xiangru Feng
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
- University of Science and Technology of ChinaHefei230026P. R. China
| | - Weiguo Xu
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
| | - Zhongmin Li
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
- Department of Gastrointestinal Colorectal and Anal SurgeryChina–Japan Union Hospital of Jilin UniversityChangchun130033P. R. China
| | - Wantong Song
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
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HMGA1 promoting gastric cancer oncogenic and glycolytic phenotypes by regulating c-myc expression. Biochem Biophys Res Commun 2019; 516:457-465. [PMID: 31229266 DOI: 10.1016/j.bbrc.2019.06.071] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 06/14/2019] [Indexed: 12/11/2022]
Abstract
The high mobility group A1 (HMGA1) protein, an architectural transcription factor, is profoundly implicated in the pathogenesis and progression of multiple malignant tumors. Reprogrammed energy metabolism is a hallmark of diverse types of cancer cells. However, little is known about the regulatory role of HMGA1 in aerobic glycolysis. In this study, we found that HMGA1 was highly expressed in many types of human cancers including gastric cancer and predicted a poor prognosis. However, high HMGA1 expression was not correlated with TNM stages. Gene set enrichment analysis result suggested a link between HMGA1 expression and glycolytic phenotype in gastric cancer. Genetic silencing of HMGA1 significantly inhibited gastric cancer glycolytic activity as revealed by reduced glucose uptake, lactate release, and extracellular acidification ratio. In addition, cell proliferation and invasive capacity of gastric cancer cells were also suppressed by HMGA1 knockdown. Mechanistically, the key glycolysis regulator c-Myc was identified as a downstream target of HMGA1. In gastric cancer patients, HMGA1 and c-Myc expression were closely associated with the glycolysis gene signature. Taken together, our findings identify a novel function of HMGA1 in regulating aerobic glycolysis in gastric cancer.
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Xian L, Chia L, Georgess D, Luo L, Shuai S, Ewald AJ, Resar LMS. Genetic Engineering of Primary Mouse Intestinal Organoids Using Magnetic Nanoparticle Transduction Viral Vectors for Frozen Sectioning. J Vis Exp 2019. [PMID: 31132065 DOI: 10.3791/57040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Intestinal organoid cultures provide a unique opportunity to investigate intestinal stem cell and crypt biology in vitro, although efficient approaches to manipulate gene expression in organoids have made limited progress in this arena. While CRISPR/Cas9 technology allows for precise genome editing of cells for organoid generation, this strategy requires extensive selection and screening by sequence analysis, which is both time-consuming and costly. Here, we provide a detailed protocol for efficient viral transduction of intestinal organoids. This approach is rapid and highly efficient, thus decreasing the time and expense inherent in CRISPR/Cas9 technology. We also present a protocol to generate frozen sections from intact organoid cultures for further analysis with immunohistochemical or immunofluorescent staining, which can be used to confirm gene expression or silencing. After successful transduction of viral vectors for gene expression or silencing is achieved, intestinal stem cell and crypt function can be rapidly assessed. Although most organoid studies employ in vitro assays, organoids can also be delivered to mice for in vivo functional analyses. Moreover, our approaches are advantageous for predicting therapeutic responses to drugs because currently available therapies generally function by modulating gene expression or protein function rather than altering the genome.
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Affiliation(s)
- Lingling Xian
- Department of Medicine, Division of Hematology, Johns Hopkins University School of Medicine
| | - Lionel Chia
- Department of Medicine, Division of Hematology, Johns Hopkins University School of Medicine; Department of Pathology, Johns Hopkins University School of Medicine
| | - Dan Georgess
- Department of Natural Sciences, School of Arts & Sciences, Lebanese American University
| | - Li Luo
- Department of Medicine, Division of Hematology, Johns Hopkins University School of Medicine
| | - Shuai Shuai
- Department of Medicine, Division of Hematology, Johns Hopkins University School of Medicine
| | - Andrew J Ewald
- Department of Cell Biology, Johns Hopkins University School of Medicine; Department of Oncology, Johns Hopkins University School of Medicine
| | - Linda M S Resar
- Department of Medicine, Division of Hematology, Johns Hopkins University School of Medicine; Department of Oncology, Johns Hopkins University School of Medicine; Department of Pathology, Johns Hopkins University School of Medicine; Institute for Cell Engineering, Johns Hopkins University School of Medicine;
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Abstract
Inactivating mutations of Arid1a, a subunit of the Switch/sucrose nonfermentable chromatin remodeling complex, have been reported in multiple human cancers. Intestinal deletion of Arid1a has been reported to induce colorectal cancer in mice; however, its functional role in intestinal homeostasis remains unclear. We investigated the functional role of Arid1a in intestinal homeostasis in mice. We found that intestinal deletion of Arid1a results in loss of intestinal stem cells (ISCs), decreased Paneth and goblet cells, disorganized crypt-villous structures, and increased apoptosis in adult mice. Spheroids did not develop from intestinal epithelial cells deficient for Arid1a Lineage-tracing experiments revealed that Arid1a deletion in Lgr5+ ISCs leads to impaired self-renewal of Lgr5+ ISCs but does not perturb intestinal homeostasis. The Wnt signaling pathway, including Wnt agonists, receptors, and target genes, was strikingly down-regulated in Arid1a-deficient intestines. We found that Arid1a directly binds to the Sox9 promoter to support its expression. Remarkably, overexpression of Sox9 in intestinal epithelial cells abrogated the above phenotypes, although Sox9 overexpression in intestinal epithelial cells did not restore the expression levels of Wnt agonist and receptor genes. Furthermore, Sox9 overexpression permitted development of spheroids from Arid1a-deficient intestinal epithelial cells. In addition, deletion of Arid1a concomitant with Sox9 overexpression in Lgr5+ ISCs restores self-renewal in Arid1a-deleted Lgr5+ ISCs. These results indicate that Arid1a is indispensable for the maintenance of ISCs and intestinal homeostasis in mice. Mechanistically, this is mainly mediated by Sox9. Our data provide insights into the molecular mechanisms underlying maintenance of ISCs and intestinal homeostasis.
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Wang Y, Hu L, Zheng Y, Guo L. HMGA1 in cancer: Cancer classification by location. J Cell Mol Med 2019; 23:2293-2302. [PMID: 30614613 PMCID: PMC6433663 DOI: 10.1111/jcmm.14082] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 07/19/2018] [Accepted: 11/16/2018] [Indexed: 12/23/2022] Open
Abstract
The high mobility group A1 (HMGA1) gene plays an important role in numerous malignant cancers. HMGA1 is an oncofoetal gene, and we have a certain understanding of the biological function of HMGA1 based on its activities in various neoplasms. As an architectural transcription factor, HMGA1 remodels the chromatin structure and promotes the interaction between transcriptional regulatory proteins and DNA in different cancers. Through analysis of the molecular mechanism of HMGA1 and clinical studies, emerging evidence indicates that HMGA1 promotes the occurrence and metastasis of cancer. Within a similar location or the same genetic background, the function and role of HMGA1 may have certain similarities. In this paper, to characterize HMGA1 comprehensively, research on various types of tumours is discussed to further understanding of the function and mechanism of HMGA1. The findings provide a more reliable basis for classifying HMGA1 function according to the tumour location. In this review, we summarize recent studies related to HMGA1, including its structure and oncogenic properties, its major functions in each cancer, its upstream and downstream regulation associated with the tumourigenesis and metastasis of cancer, and its potential as a biomarker for clinical diagnosis of cancer.
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Affiliation(s)
- Yuhong Wang
- The First Affiliated Hospital of Soochow University Department of Pathology, Suzhou, Jiangsu, China
| | - Lin Hu
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Yushuang Zheng
- The First Affiliated Hospital of Soochow University Department of Pathology, Suzhou, Jiangsu, China
| | - Lingchuan Guo
- The First Affiliated Hospital of Soochow University Department of Pathology, Suzhou, Jiangsu, China
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Ren J, Niu Z, Li X, Yang J, Gao M, Li X, Zhang T, Fang L, Zhang B, Wang J, Su Y, Wang F. A novel morphometry system automatically assessing the growth and regeneration of intestinal organoids. Biochem Biophys Res Commun 2018; 506:1052-1058. [PMID: 30409423 DOI: 10.1016/j.bbrc.2018.10.181] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 10/29/2018] [Indexed: 02/07/2023]
Abstract
As compared with 2D cell line cultures, 3D intestinal organoids are better at maximally recapitulating the physiological features of stem cells in vivo. However, the complex 3D structure is an obstacle which must be objectively and automatically evaluated to assess colony growth and regeneration. Meanwhile, no internal standard currently exists for evaluating the size of heterogeneities in organoids or defining those regenerating colonies. Herein, we developed a simple morphometry system to image MTT-stained organoids. The growth curve of organoids can be automatically generated based upon analyzing the integrated optical density using software. Referencing the definition standards of in vivo regenerating crypts, the perimeters of crypts cultured 24 h after seeding were selected as an "Organoid Unit" to further evaluate colony survival rate and colony size heterogeneities after exposure to varying doses of irradiation. Moreover, the morphometry-based quantification data collected confirmed other findings associated with radiation sensitizing effects of ataxia telangiectasia mutated (ATM) and ataxia telangiectasia and Rad3-related protein (ATR) inhibitor and the radiation protective effect of IL-22. In summary, the novel organoid morphometry system combined with a new internal reference is a practical means for standardizing assessment of growth, survival and regeneration of intestinal organoid colonies. This method has promise to facilitate drug screens in intestinal and other organoid systems.
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Affiliation(s)
- Jiong Ren
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Gaotanyan Street 30(#), Shapingba, Chongqing, 400038, China
| | - Zhibin Niu
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Gaotanyan Street 30(#), Shapingba, Chongqing, 400038, China
| | - Xiaoqin Li
- Chongqing Health Center for Women and Children, China
| | - Jie Yang
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Gaotanyan Street 30(#), Shapingba, Chongqing, 400038, China
| | - Meijiao Gao
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Gaotanyan Street 30(#), Shapingba, Chongqing, 400038, China
| | - Xudong Li
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Gaotanyan Street 30(#), Shapingba, Chongqing, 400038, China
| | - Tao Zhang
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Gaotanyan Street 30(#), Shapingba, Chongqing, 400038, China
| | - Lei Fang
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Gaotanyan Street 30(#), Shapingba, Chongqing, 400038, China
| | - Boyang Zhang
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Gaotanyan Street 30(#), Shapingba, Chongqing, 400038, China
| | - Junping Wang
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Gaotanyan Street 30(#), Shapingba, Chongqing, 400038, China
| | - Yongping Su
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Gaotanyan Street 30(#), Shapingba, Chongqing, 400038, China
| | - Fengchao Wang
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Gaotanyan Street 30(#), Shapingba, Chongqing, 400038, China.
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50
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Yu B, Wu K, Wang X, Zhang J, Wang L, Jiang Y, Zhu X, Chen W, Yan M. Periostin secreted by cancer-associated fibroblasts promotes cancer stemness in head and neck cancer by activating protein tyrosine kinase 7. Cell Death Dis 2018; 9:1082. [PMID: 30348980 PMCID: PMC6197282 DOI: 10.1038/s41419-018-1116-6] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 09/26/2018] [Accepted: 09/27/2018] [Indexed: 02/06/2023]
Abstract
Protein tyrosine kinase 7 (PTK7) and cancer-associated fibroblasts (CAFs) play important roles in cancer stemness, respectively. However, little is known about interaction between CAFs and PTK7 in cancers. In this study, we showed that PTK7 was significantly correlated with the Wnt/β-Catenin pathway and aggressive clinicopathologic features in human head and neck squamous cell carcinoma (HNSCC). Meanwhile, animal experiments showed that PTK7 enhanced chemoresistance and lung metastasis of HNSCC in vivo. In addition, co-immunoprecipitation (co-IP) assay demonstrated that POSTN secreted by CAFs was a potential upstream ligand of PTK7 which might act as a receptor. Further analysis revealed that POSTN promoted the cancer stem cell (CSC)-like phenotype via PTK7-Wnt/β-Catenin signaling, including the proliferation and invasion of HNSCC cells in vitro, as well as tumor initiation and progression in vivo. Collectively, our study proved that CAF-derived POSTN might promote cancer stemness via interacting with PTK7 in HNSCC, suggesting that the combination of POSTN and PTK7 might be a potential prognostic and diagnostic indicator and a promising therapeutic target.
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Affiliation(s)
- Binbin Yu
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital & College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- National Clinical Research Center of Stomatology, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Kailiu Wu
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital & College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Xu Wang
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital & College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- National Clinical Research Center of Stomatology, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Jianjun Zhang
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital & College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- National Clinical Research Center of Stomatology, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Lizhen Wang
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yingying Jiang
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital & College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- National Clinical Research Center of Stomatology, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Xueqin Zhu
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital & College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Wantao Chen
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital & College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
- National Clinical Research Center of Stomatology, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China.
| | - Ming Yan
- Department of Oral and Maxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital & College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
- National Clinical Research Center of Stomatology, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China.
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