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Zolotarenko A, Bruskin S. IQGAP3 Is an Important Mediator of Skin Inflammatory Diseases. Int J Mol Sci 2024; 25:4545. [PMID: 38674130 PMCID: PMC11050236 DOI: 10.3390/ijms25084545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/10/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
IQGAP3 (IQ Motif Containing GTPase Activating Protein 3) is member of the IQGAP family of scaffold proteins, which are essential for assembling multiprotein complexes that coordinate various intracellular signaling pathways. Previous research has shown that IQGAP3 is overexpressed in psoriatic skin lesions. Given its involvement in processes like cell proliferation and chemokine signaling, we sought to explore its molecular role in driving the psoriatic phenotype of keratinocytes. By conducting transcriptome profiling of HaCaT keratinocytes, we identified numerous psoriasis-associated pathways that were affected when IQGAP3 was knocked down. These included alterations in NFkB signaling, EGFR signaling, activation of p38/MAPK and ERK1/ERK2, lipid metabolism, cytokine production, and the response to inflammatory cytokine stimulation. Real-time analysis further revealed changes in cell growth dynamics, including proliferation and wound healing. The balance between cell proliferation and apoptosis was altered, as were skin barrier functions and the production of IL-6 and IFNγ. Despite these significant findings, the diversity of the alterations observed in the knockdown cells led us to conclude that IQGAP3 may not be the best target for the therapeutic inhibition to normalize the phenotype of keratinocytes in psoriasis.
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Affiliation(s)
- Alena Zolotarenko
- Laboratory of Functional genomics, Vavilov Institute of General Genetics Russian Academy of Sciences, 119991 Moscow, Russia
| | - Sergey Bruskin
- Laboratory of Functional genomics, Vavilov Institute of General Genetics Russian Academy of Sciences, 119991 Moscow, Russia
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2
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Tong QY, Pang MJ, Hu XH, Huang XZ, Sun JX, Wang XY, Burclaff J, Mills JC, Wang ZN, Miao ZF. Gastric intestinal metaplasia: progress and remaining challenges. J Gastroenterol 2024; 59:285-301. [PMID: 38242996 DOI: 10.1007/s00535-023-02073-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 12/26/2023] [Indexed: 01/21/2024]
Abstract
Most gastric cancers arise in the setting of chronic inflammation which alters gland organization, such that acid-pumping parietal cells are lost, and remaining cells undergo metaplastic change in differentiation patterns. From a basic science perspective, recent progress has been made in understanding how atrophy and initial pyloric metaplasia occur. However, pathologists and cancer biologists have long been focused on the development of intestinal metaplasia patterns in this setting. Arguably, much less progress has been made in understanding the mechanisms that lead to the intestinalization seen in chronic atrophic gastritis and pyloric metaplasia. One plausible explanation for this disparity lies in the notable absence of reliable and reproducible small animal models within the field, which would facilitate the investigation of the mechanisms underlying the development of gastric intestinal metaplasia (GIM). This review offers an in-depth exploration of the current state of research in GIM, shedding light on its pivotal role in tumorigenesis. We delve into the histological subtypes of GIM and explore their respective associations with tumor formation. We present the current repertoire of biomarkers utilized to delineate the origins and progression of GIM and provide a comprehensive survey of the available, albeit limited, mouse lines employed for modeling GIM and engage in a discussion regarding potential cell lineages that serve as the origins of GIM. Finally, we expound upon the myriad signaling pathways recognized for their activity in GIM and posit on their potential overlap and interactions that contribute to the ultimate manifestation of the disease phenotype. Through our exhaustive review of the progression from gastric disease to GIM, we aim to establish the groundwork for future research endeavors dedicated to elucidating the etiology of GIM and developing strategies for its prevention and treatment, considering its potential precancerous nature.
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Affiliation(s)
- Qi-Yue Tong
- Department of Surgical Oncology and General Surgery, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China
- Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China
| | - Min-Jiao Pang
- Department of Surgical Oncology and General Surgery, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China
- Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China
| | - Xiao-Hai Hu
- Department of Surgical Oncology and General Surgery, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China
- Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China
| | - Xuan-Zhang Huang
- Department of Surgical Oncology and General Surgery, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China
- Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China
| | - Jing-Xu Sun
- Department of Surgical Oncology and General Surgery, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China
- Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China
| | - Xin-Yu Wang
- Department of Surgical Oncology and General Surgery, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China
- Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China
| | - Joseph Burclaff
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, North Carolina, USA
- Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, North Carolina, USA
| | - Jason C Mills
- Section of Gastroenterology and Hepatology, Department of Medicine, Departments of Pathology and Immunology, Molecular and Cellular Biology, Baylor College of Medicine, Houston, USA
| | - Zhen-Ning Wang
- Department of Surgical Oncology and General Surgery, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China.
- Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China.
| | - Zhi-Feng Miao
- Department of Surgical Oncology and General Surgery, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China.
- Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, Liaoning, China.
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GAO XIAOFENG, GE JUANJUAN, GAO XUZHENG, MEI NA, SU YANTING, SHAN SHIGANG, QIAN WENBIN, GUAN JIANGHENG, ZHANG ZHENWANG, WANG LONG. IQGAP3 promotes the progression of glioma as an immune and prognostic marker. Oncol Res 2024; 32:659-678. [PMID: 38560572 PMCID: PMC10972721 DOI: 10.32604/or.2023.046712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/01/2023] [Indexed: 04/04/2024] Open
Abstract
Background: IQGAP3 plays a crucial role in regulating cell proliferation, division, and cytoskeletal organization. Abnormal expression of IQGAP3 has been linked to various tumors, but its function in glioma is not well understood. Methods: Various methods, including genetic differential analysis, single-cell analysis, ROC curve analysis, Cox regression, Kaplan-Meier analysis, and enrichment analysis, were employed to analyze the expression patterns, diagnostic potential, prognostic implications, and biological processes involving IQGAP3 in normal and tumor tissues. The impact of IQGAP3 on immune infiltration and the immune microenvironment in gliomas was evaluated using immunofluorescence. Additionally, the cBioPortal database was used to analyze copy number variations and mutation sites of IQGAP3. Experimental validation was also performed to assess the effects of IQGAP3 on glioma cells and explore underlying mechanisms. Results: High IQGAP3 expression in gliomas is associated with an unfavorable prognosis, particularly in wild-type IDH and 1p/19q non-codeleted gliomas. Enrichment analysis revealed that IQGAP3 is involved in regulating the cell cycle, PI3K/AKT signaling, p53 signaling, and PLK1-related pathways. Furthermore, IQGAP3 expression may be closely related to the immunosuppressive microenvironment of glioblastoma. BRD-K88742110 and LY-303511 are potential drugs for targeting IQGAP3 in anti-glioma therapy. In vitro experiments showed that downregulation of IQGAP3 inhibits the proliferation and migration of glioma cells, with the PLK1/PI3K/AKT pathway potentially playing a crucial role in IQGAP3-mediated glioma progression. Conclusion: IQGAP3 shows promise as a valuable biomarker for diagnosis, prognosis, and immunotherapeutic strategies in gliomas.
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Affiliation(s)
- XIAOFENG GAO
- Hubei Provincial Key Laboratory of Diabetic Cardiovascular Diseases, Xianning Medical College, Hubei University of Science and Technology, Xianning, 437100, China
- School of Stomatology and Ophthalmology, Xianning Medical College, Hubei University of Science and Technology, Xianning, 437100, China
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Hubei University of Science and Technology, Xianning, 437100, China
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, 437100, China
| | - JUANJUAN GE
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Hubei University of Science and Technology, Xianning, 437100, China
| | - XUZHENG GAO
- Hubei Provincial Key Laboratory of Diabetic Cardiovascular Diseases, Xianning Medical College, Hubei University of Science and Technology, Xianning, 437100, China
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Hubei University of Science and Technology, Xianning, 437100, China
| | - NA MEI
- Hubei Provincial Key Laboratory of Diabetic Cardiovascular Diseases, Xianning Medical College, Hubei University of Science and Technology, Xianning, 437100, China
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Hubei University of Science and Technology, Xianning, 437100, China
| | - YANTING SU
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Hubei University of Science and Technology, Xianning, 437100, China
| | - SHIGANG SHAN
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Hubei University of Science and Technology, Xianning, 437100, China
| | - WENBIN QIAN
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Hubei University of Science and Technology, Xianning, 437100, China
| | - JIANGHENG GUAN
- Department of Neurosurgery, The General Hospital of Chinese PLA Central Theater Command, Wuhan, 430070, China
| | - ZHENWANG ZHANG
- Hubei Provincial Key Laboratory of Diabetic Cardiovascular Diseases, Xianning Medical College, Hubei University of Science and Technology, Xianning, 437100, China
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Hubei University of Science and Technology, Xianning, 437100, China
| | - LONG WANG
- School of Stomatology and Ophthalmology, Xianning Medical College, Hubei University of Science and Technology, Xianning, 437100, China
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Hubei University of Science and Technology, Xianning, 437100, China
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, 437100, China
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4
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Lee SH, Won Y, Gibbs D, Caldwell B, Goldstein A, Choi E, Goldenring JR. Amphiregulin Switches Progenitor Cell Fate for Lineage Commitment During Gastric Mucosal Regeneration. Gastroenterology 2024:S0016-5085(24)00290-7. [PMID: 38492892 DOI: 10.1053/j.gastro.2024.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND & AIMS Isthmic progenitors, tissue-specific stem cells in the stomach corpus, maintain mucosal homeostasis by balancing between proliferation and differentiation to gastric epithelial lineages. The progenitor cells rapidly adopt an active state in response to mucosal injury. However, it remains unclear how the isthmic progenitor cell niche is controlled during the regeneration of damaged epithelium. METHODS We recapitulated tissue recovery process after acute mucosal injury in the mouse stomach. Bromodeoxyuridine incorporation was used to trace newly generated cells during the injury and recovery phases. To define the epithelial lineage commitment process during recovery, we performed single-cell RNA-sequencing on epithelial cells from the mouse stomachs. We validated the effects of amphiregulin (AREG) on mucosal recovery, using recombinant AREG treatment or AREG-deficient mice. RESULTS We determined that an epidermal growth factor receptor ligand, AREG, can control progenitor cell lineage commitment. Based on the identification of lineage-committed subpopulations in the corpus epithelium through single-cell RNA-sequencing and bromodeoxyuridine incorporation, we showed that isthmic progenitors mainly transition into short-lived surface cell lineages but are less frequently committed to long-lived parietal cell lineages in homeostasis. However, mucosal regeneration after damage directs the lineage commitment of isthmic progenitors towards parietal cell lineages. During recovery, AREG treatment promoted repopulation with parietal cells, while suppressing surface cell commitment of progenitors. In contrast, transforming growth factor-α did not alter parietal cell regeneration, but did induce expansion of surface cell populations. AREG deficiency impairs parietal cell regeneration but increases surface cell commitment. CONCLUSIONS These data demonstrate that different epidermal growth factor receptor ligands can distinctly regulate isthmic progenitor-driven mucosal regeneration and lineage commitment.
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Affiliation(s)
- Su-Hyung Lee
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee.
| | - Yoonkyung Won
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - David Gibbs
- Institute for Systems Biology, Seattle, Washington
| | - Brianna Caldwell
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Anna Goldstein
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Eunyoung Choi
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee
| | - James R Goldenring
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee; Nashville VA Medical Center, Nashville, Tennessee.
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5
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Adkins-Threats M, Huang YZ, Mills JC. Highlights of how single-cell analyses are illuminating differentiation and disease in the gastric corpus. Am J Physiol Gastrointest Liver Physiol 2024; 326:G205-G215. [PMID: 38193187 PMCID: PMC11211037 DOI: 10.1152/ajpgi.00164.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 12/18/2023] [Accepted: 12/23/2023] [Indexed: 01/10/2024]
Abstract
Single-cell RNA-sequencing (scRNA-seq) has emerged as a powerful technique to identify novel cell markers, developmental trajectories, and transcriptional changes during cell differentiation and disease onset and progression. In this review, we highlight recent scRNA-seq studies of the gastric corpus in both human and murine systems that have provided insight into gastric organogenesis, identified novel markers for the various gastric lineages during development and in adults, and revealed transcriptional changes during regeneration and tumorigenesis. Overall, by elucidating transcriptional states and fluctuations at the cellular level in healthy and disease contexts, scRNA-seq may lead to better, more personalized clinical treatments for disease progression.
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Affiliation(s)
- Mahliyah Adkins-Threats
- Section of Gastroenterology, Department of Medicine, Baylor College of Medicine, Houston, Texas, United States
| | - Yang-Zhe Huang
- Section of Gastroenterology, Department of Medicine, Baylor College of Medicine, Houston, Texas, United States
- Graduate School of Biomedical Sciences, Cancer and Cell Biology Program, Baylor College of Medicine, Houston, Texas, United States
| | - Jason C Mills
- Section of Gastroenterology, Department of Medicine, Baylor College of Medicine, Houston, Texas, United States
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, United States
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States
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6
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Huang KK, Ma H, Chong RHH, Uchihara T, Lian BSX, Zhu F, Sheng T, Srivastava S, Tay ST, Sundar R, Tan ALK, Ong X, Lee M, Ho SWT, Lesluyes T, Ashktorab H, Smoot D, Van Loo P, Chua JS, Ramnarayanan K, Lau LHS, Gotoda T, Kim HS, Ang TL, Khor C, Lee JWJ, Tsao SKK, Yang WL, Teh M, Chung H, So JBY, Yeoh KG, Tan P. Spatiotemporal genomic profiling of intestinal metaplasia reveals clonal dynamics of gastric cancer progression. Cancer Cell 2023; 41:2019-2037.e8. [PMID: 37890493 PMCID: PMC10729843 DOI: 10.1016/j.ccell.2023.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 08/08/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023]
Abstract
Intestinal metaplasia (IM) is a pre-malignant condition of the gastric mucosa associated with increased gastric cancer (GC) risk. Analyzing 1,256 gastric samples (1,152 IMs) across 692 subjects from a prospective 10-year study, we identify 26 IM driver genes in diverse pathways including chromatin regulation (ARID1A) and intestinal homeostasis (SOX9). Single-cell and spatial profiles highlight changes in tissue ecology and IM lineage heterogeneity, including an intestinal stem-cell dominant cellular compartment linked to early malignancy. Expanded transcriptome profiling reveals expression-based molecular subtypes of IM associated with incomplete histology, antral/intestinal cell types, ARID1A mutations, inflammation, and microbial communities normally associated with the healthy oral tract. We demonstrate that combined clinical-genomic models outperform clinical-only models in predicting IMs likely to transform to GC. By highlighting strategies for accurately identifying IM patients at high GC risk and a role for microbial dysbiosis in IM progression, our results raise opportunities for GC precision prevention and interception.
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Affiliation(s)
- Kie Kyon Huang
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Haoran Ma
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Roxanne Hui Heng Chong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Tomoyuki Uchihara
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Benedict Shi Xiang Lian
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Feng Zhu
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Taotao Sheng
- Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore, Singapore
| | - Supriya Srivastava
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Su Ting Tay
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Raghav Sundar
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; Department of Haematology-Oncology, National University Health System, Singapore 119074, Singapore
| | - Angie Lay Keng Tan
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Xuewen Ong
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Minghui Lee
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Shamaine Wei Ting Ho
- Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore, Singapore
| | | | | | - Duane Smoot
- Department of Internal Medicine, Meharry Medical College, Nashville, TN, USA
| | - Peter Van Loo
- The Francis Crick Institute, London, UK; Department of Genetics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Joy Shijia Chua
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Kalpana Ramnarayanan
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Louis Ho Shing Lau
- Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Takuji Gotoda
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Hyun Soo Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Seoul, Korea
| | - Tiing Leong Ang
- Department of Gastroenterology & Hepatology, Changi General Hospital, Singapore 529889, Singapore
| | - Christopher Khor
- Department of Gastroenterology & Hepatology, Singapore General Hospital, Singapore 169854, Singapore
| | - Jonathan Wei Jie Lee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; iHealthtech, National University of Singapore, Singapore, Singapore; SynCTI, National University of Singapore, Singapore 117599, Singapore; Department of Gastroenterology & Hepatology, National University Hospital, Singapore 119074, Singapore
| | - Stephen Kin Kwok Tsao
- Department of Gastroenterology & Hepatology, Tan Tock Seng Hospital, Singapore 308433, Singapore
| | - Wei Lyn Yang
- Department of Gastroenterology & Hepatology, Tan Tock Seng Hospital, Singapore 308433, Singapore
| | - Ming Teh
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Hyunsoo Chung
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea.
| | - Jimmy Bok Yan So
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; NUS Centre for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore; Division of Surgical Oncology, National University Cancer Institute of Singapore (NCIS), Singapore, Singapore.
| | - Khay Guan Yeoh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; Department of Gastroenterology & Hepatology, National University Hospital, Singapore 119074, Singapore.
| | - Patrick Tan
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore; Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore, Singapore; Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore; Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117593, Singapore; Cellular and Molecular Research, National Cancer Centre, Singapore, Singapore; Singhealth/Duke-NUS Institute of Precision Medicine, National Heart Centre Singapore, Singapore 168752, Singapore.
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7
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Singh S, Lian Q, Budiman T, Taketo MM, Simons BD, Gupta V. Heterogeneous murine peribiliary glands orchestrate compartmentalized epithelial renewal. Dev Cell 2023; 58:2732-2745.e5. [PMID: 37909044 PMCID: PMC10842076 DOI: 10.1016/j.devcel.2023.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 10/04/2023] [Accepted: 10/05/2023] [Indexed: 11/02/2023]
Abstract
The extrahepatic branches of the biliary tree have glands that connect to the surface epithelium through narrow pits. The duct epithelia undergo homeostatic renewal, yet the identity and multiplicity of cells that maintain this tissue is unknown. Using marker-free and targeted clonal fate mapping in mice, we provide evidence that the extrahepatic bile duct is compartmentalized. Pit cholangiocytes of extramural glands renewed the surface epithelium, whereas basally oriented cholangiocytes maintained the gland itself. In contrast, basally positioned cholangiocytes replenished the surface epithelium in mural glands. Single-cell sequencing identified genes enriched in the base and surface epithelial populations, with trajectory analysis showing graded gene expression between these compartments. Epithelia were plastic, changing cellular identity upon fasting and refeeding. Gain of canonical Wnt signaling caused basal cell expansion, gastric chief cell marker expression, and a decrease in surface epithelial markers. Our results identify the cellular hierarchy governing extrahepatic biliary epithelial renewal.
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Affiliation(s)
- Serrena Singh
- Section of Digestive Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Qiuyu Lian
- Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge CB2 1QN, UK
| | - Tifanny Budiman
- Section of Digestive Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Makoto M Taketo
- Kyoto University Hospital-iACT (Colon Cancer Project), Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Benjamin D Simons
- Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge CB2 1QN, UK; Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, Wilberforce Road, Cambridge CB3 0WA, UK; Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge CB2 0AW, UK
| | - Vikas Gupta
- Section of Digestive Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.
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8
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Alvina FB, Chen TCY, Lim HYG, Barker N. Gastric epithelial stem cells in development, homeostasis and regeneration. Development 2023; 150:dev201494. [PMID: 37746871 DOI: 10.1242/dev.201494] [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] [Indexed: 09/26/2023]
Abstract
The stem/progenitor cell pool is indispensable for the development, homeostasis and regeneration of the gastric epithelium, owing to its defining ability to self-renew whilst supplying the various functional epithelial lineages needed to digest food efficiently. A detailed understanding of the intricacies and complexities surrounding the behaviours and roles of these stem cells offers insights, not only into the physiology of gastric epithelial development and maintenance, but also into the pathological consequences following aberrations in stem cell regulation. Here, we provide an insightful synthesis of the existing knowledge on gastric epithelial stem cell biology, including the in vitro and in vivo experimental techniques that have advanced such studies. We highlight the contributions of stem/progenitor cells towards patterning the developing stomach, specification of the differentiated cell lineages and maintenance of the mature epithelium during homeostasis and following injury. Finally, we discuss gaps in our understanding and identify key research areas for future work.
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Affiliation(s)
- Fidelia B Alvina
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Republic of Singapore
| | - Tanysha Chi-Ying Chen
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Republic of Singapore
| | - Hui Yi Grace Lim
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Republic of Singapore
| | - Nick Barker
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Republic of Singapore
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore 117593, Republic of Singapore
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9
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Takada H, Sasagawa Y, Yoshimura M, Tanaka K, Iwayama Y, Hayashi T, Isomura-Matoba A, Nikaido I, Kurisaki A. Single-cell transcriptomics uncovers EGFR signaling-mediated gastric progenitor cell differentiation in stomach homeostasis. Nat Commun 2023; 14:3750. [PMID: 37386010 PMCID: PMC10310803 DOI: 10.1038/s41467-023-39113-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/30/2023] [Indexed: 07/01/2023] Open
Abstract
Defects in gastric progenitor cell differentiation are associated with various gastric disorders, including atrophic gastritis, intestinal metaplasia, and gastric cancer. However, the mechanisms underlying the multilineage differentiation of gastric progenitor cells during healthy homeostasis remain poorly understood. Here, using a single-cell RNA sequencing method, Quartz-Seq2, we analyzed the gene expression dynamics of progenitor cell differentiation toward pit cell, neck cell, and parietal cell lineages in healthy adult mouse corpus tissues. Enrichment analysis of pseudotime-dependent genes and a gastric organoid assay revealed that EGFR-ERK signaling promotes pit cell differentiation, whereas NF-κB signaling maintains gastric progenitor cells in an undifferentiated state. In addition, pharmacological inhibition of EGFR in vivo resulted in a decreased number of pit cells. Although activation of EGFR signaling in gastric progenitor cells has been suggested as one of the major inducers of gastric cancers, our findings unexpectedly identified that EGFR signaling exerts a differentiation-promoting function, not a mitogenic function, in normal gastric homeostasis.
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Affiliation(s)
- Hitomi Takada
- Laboratory of Stem Cell Technologies, Graduate School of Science and Technology, Nara Institute of Science and Technology, Takayama-cho, Ikoma, Nara, Japan
| | - Yohei Sasagawa
- Laboratory for Bioinformatics Research, RIKEN Center for Biosystems Dynamics Research, Wako, Saitama, Japan
- Department of Functional Genome Informatics, Biological Data Science, Medical Research Institute, Tokyo Medical and Dental University, Bunkyo, Tokyo, Japan
| | - Mika Yoshimura
- Laboratory for Bioinformatics Research, RIKEN Center for Biosystems Dynamics Research, Wako, Saitama, Japan
| | - Kaori Tanaka
- Laboratory for Bioinformatics Research, RIKEN Center for Biosystems Dynamics Research, Wako, Saitama, Japan
| | - Yoshimi Iwayama
- Laboratory for Bioinformatics Research, RIKEN Center for Biosystems Dynamics Research, Wako, Saitama, Japan
- Department of Functional Genome Informatics, Biological Data Science, Medical Research Institute, Tokyo Medical and Dental University, Bunkyo, Tokyo, Japan
| | - Tetsutaro Hayashi
- Laboratory for Bioinformatics Research, RIKEN Center for Biosystems Dynamics Research, Wako, Saitama, Japan
| | - Ayako Isomura-Matoba
- Laboratory for Bioinformatics Research, RIKEN Center for Biosystems Dynamics Research, Wako, Saitama, Japan
| | - Itoshi Nikaido
- Laboratory for Bioinformatics Research, RIKEN Center for Biosystems Dynamics Research, Wako, Saitama, Japan.
- Department of Functional Genome Informatics, Biological Data Science, Medical Research Institute, Tokyo Medical and Dental University, Bunkyo, Tokyo, Japan.
- Master's/Doctoral Program in Life Science Innovation (Bioinformatics), Degree Programs in Systems and Information Engineering, Graduate School of Science and Technology, University of Tsukuba, Tsukuba, Ibaraki, Japan.
| | - Akira Kurisaki
- Laboratory of Stem Cell Technologies, Graduate School of Science and Technology, Nara Institute of Science and Technology, Takayama-cho, Ikoma, Nara, Japan.
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Lyu F, Gao X, Ma M, Xie M, Shang S, Ren X, Liu M, Chen J. Crafting a Personalized Prognostic Model for Malignant Prostate Cancer Patients Using Risk Gene Signatures Discovered through TCGA-PRAD Mining, Machine Learning, and Single-Cell RNA-Sequencing. Diagnostics (Basel) 2023; 13:1997. [PMID: 37370891 DOI: 10.3390/diagnostics13121997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 05/24/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Prostate cancer is a significant clinical issue, particularly for high Gleason score (GS) malignancy patients. Our study aimed to engineer and validate a risk model based on the profiles of high-GS PCa patients for early identification and the prediction of prognosis. METHODS We conducted differential gene expression analysis on patient samples from The Cancer Genome Atlas (TCGA) and enriched our understanding of gene functions. Using the least absolute selection and shrinkage operator (LASSO) regression, we established a risk model and validated it using an independent dataset from the International Cancer Genome Consortium (ICGC). Clinical variables were incorporated into a nomogram to predict overall survival (OS), and machine learning was used to explore the risk factor characteristics' impact on PCa prognosis. Our prognostic model was confirmed using various databases, including single-cell RNA-sequencing datasets (scRNA-seq), the Cancer Cell Line Encyclopedia (CCLE), PCa cell lines, and tumor tissues. RESULTS We identified 83 differentially expressed genes (DEGs). Furthermore, WASIR1, KRTAP5-1, TLX1, KIF4A, and IQGAP3 were determined to be significant risk factors for OS and progression-free survival (PFS). Based on these five risk factors, we developed a risk model and nomogram for predicting OS and PFS, with a C-index of 0.823 (95% CI, 0.766-0.881) and a 10-year area under the curve (AUC) value of 0.788 (95% CI, 0.633-0.943). Additionally, the 3-year AUC was 0.759 when validating using ICGC. KRTAP5-1 and WASIR1 were found to be the most influential prognosis factors when using the optimized machine learning model. Finally, the established model was interrelated with immune cell infiltration, and the signals were found to be differentially expressed in PCa cells when using scRNA-seq datasets and tissues. CONCLUSIONS We engineered an original and novel prognostic model based on five gene signatures through TCGA and machine learning, providing new insights into the risk of scarification and survival prediction for PCa patients in clinical practice.
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Affiliation(s)
- Feng Lyu
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China
| | - Xianshu Gao
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China
| | - Mingwei Ma
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China
| | - Mu Xie
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China
| | - Shiyu Shang
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China
- First Clinical Medical School, Hebei North University, Zhangjiakou 075000, China
| | - Xueying Ren
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China
| | - Mingzhu Liu
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China
| | - Jiayan Chen
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China
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11
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Liu M, Liu Q, Zou Q, Li J, Chu Z, Xiang J, Chen WQ, Miao ZF, Wang B. The composition and roles of gastric stem cells in epithelial homeostasis, regeneration, and tumorigenesis. Cell Oncol (Dordr) 2023:10.1007/s13402-023-00802-z. [PMID: 37010700 DOI: 10.1007/s13402-023-00802-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2023] [Indexed: 04/04/2023] Open
Abstract
The epithelial lining of the stomach undergoes rapid turnover to preserve its structural and functional integrity, a process driven by long-lived stem cells residing in the antral and corpus glands. Several subpopulations of gastric stem cells have been identified and their phenotypic and functional diversities linked to spatiotemporal specification of stem cells niches. Here, we review the biological features of gastric stem cells at various locations of the stomach under homeostatic conditions, as demonstrated by reporter mice, lineage tracing, and single cell sequencing. We also review the role of gastric stem cells in epithelial regeneration in response to injury. Moreover, we discuss emerging evidence demonstrating that accumulation of oncogenic drivers or alteration of stemness signaling pathways in gastric stem cells promotes gastric cancer. Given a fundamental role of the microenvironment, this review highlights the role reprogramming of niche components and signaling pathways under pathological conditions in dictating stem cell fate. Several outstanding issues are raised, such as the relevance of stem cell heterogeneity and plasticity, and epigenetic regulatory mechanisms, to Helicobacter pylori infection-initiated metaplasia-carcinogenesis cascades. With the development of spatiotemporal genomics, transcriptomics, and proteomics, as well as multiplexed screening and tracing approaches, we anticipate that more precise definition and characterization of gastric stem cells, and the crosstalk with their niche will be delineated in the near future. Rational exploitation and proper translation of these findings may bring forward novel modalities for epithelial rejuvenation and cancer therapeutics.
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Affiliation(s)
- Meng Liu
- Department of Gastroenterology, Chongqing University Cancer Hospital, Chongqing University Medical School, Chongqing, 400030, P. R. China
- Department of Gastroenterology & Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, P. R. China
| | - Qin Liu
- Department of Gastroenterology & Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, P. R. China
| | - Qiang Zou
- Department of Gastroenterology & Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, P. R. China
- Department of Hepatobiliary Pancreatic Tumor Center, Chongqing University Cancer Hospital, Chongqing University Medical School, Chongqing, 400030, P. R. China
| | - Jinyang Li
- Department of Gastroenterology & Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, P. R. China
| | - Zhaole Chu
- Department of Gastroenterology & Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, P. R. China
| | - Junyu Xiang
- Department of Gastroenterology & Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, P. R. China
| | - Wei-Qing Chen
- Department of Gastroenterology, Chongqing University Cancer Hospital, Chongqing University Medical School, Chongqing, 400030, P. R. China.
| | - Zhi-Feng Miao
- Department of Surgical Oncology and General Surgery, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, Shenyang, 110001, P. R. China.
| | - Bin Wang
- Department of Gastroenterology & Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, P. R. China.
- Institute of Pathology and Southwest Cancer Center, and Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, P. R. China.
- Jinfeng Laboratory, Chongqing, 401329, P. R. China.
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12
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Song F, Dai Q, Grimm MO, Steinbach D. The Antithetic Roles of IQGAP2 and IQGAP3 in Cancers. Cancers (Basel) 2023; 15:cancers15041115. [PMID: 36831467 PMCID: PMC9953781 DOI: 10.3390/cancers15041115] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/02/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023] Open
Abstract
The scaffold protein family of IQ motif-containing GTPase-activating proteins (IQGAP1, 2, and 3) share a high degree of homology and comprise six functional domains. IQGAPs bind and regulate the cytoskeleton, interact with MAP kinases and calmodulin, and have GTPase-related activity, as well as a RasGAP domain. Thus, IQGAPs regulate multiple cellular processes and pathways, affecting cell division, growth, cell-cell interactions, migration, and invasion. In the past decade, significant evidence on the function of IQGAPs in signal transduction during carcinogenesis has emerged. Compared with IQGAP1, IQGAP2 and IQGAP3 were less analyzed. In this review, we summarize the different signaling pathways affected by IQGAP2 and IQGAP3, and the antithetic roles of IQGAP2 and IQGAP3 in different types of cancer. IQGAP2 expression is reduced and plays a tumor suppressor role in most solid cancer types, while IQGAP3 is overexpressed and acts as an oncogene. In lymphoma, for example, IQGAPs have partially opposite functions. There is considerable evidence that IQGAPs regulate a multitude of pathways to modulate cancer processes and chemoresistance, but some questions, such as how they trigger this signaling, through which domains, and why they play opposite roles on the same pathways, are still unanswered.
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Affiliation(s)
- Fei Song
- Department of Urology, Jena University Hospital, 07740 Jena, Germany
| | - Qingqing Dai
- Department of Internal Medicine IV (Gastroenterology, Hepatology, and Infectious Diseases), Jena University Hospital, 07740 Jena, Germany
| | - Marc-Oliver Grimm
- Department of Urology, Jena University Hospital, 07740 Jena, Germany
| | - Daniel Steinbach
- Department of Urology, Jena University Hospital, 07740 Jena, Germany
- Correspondence:
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13
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RUNX3 in Stem Cell and Cancer Biology. Cells 2023; 12:cells12030408. [PMID: 36766749 PMCID: PMC9913995 DOI: 10.3390/cells12030408] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/11/2023] [Accepted: 01/19/2023] [Indexed: 01/27/2023] Open
Abstract
The runt-related transcription factors (RUNX) play prominent roles in cell cycle progression, differentiation, apoptosis, immunity and epithelial-mesenchymal transition. There are three members in the mammalian RUNX family, each with distinct tissue expression profiles. RUNX genes play unique and redundant roles during development and adult tissue homeostasis. The ability of RUNX proteins to influence signaling pathways, such as Wnt, TGFβ and Hippo-YAP, suggests that they integrate signals from the environment to dictate cell fate decisions. All RUNX genes hold master regulator roles, albeit in different tissues, and all have been implicated in cancer. Paradoxically, RUNX genes exert tumor suppressive and oncogenic functions, depending on tumor type and stage. Unlike RUNX1 and 2, the role of RUNX3 in stem cells is poorly understood. A recent study using cancer-derived RUNX3 mutation R122C revealed a gatekeeper role for RUNX3 in gastric epithelial stem cell homeostasis. The corpora of RUNX3R122C/R122C mice showed a dramatic increase in proliferating stem cells as well as inhibition of differentiation. Tellingly, RUNX3R122C/R122C mice also exhibited a precancerous phenotype. This review focuses on the impact of RUNX3 dysregulation on (1) stem cell fate and (2) the molecular mechanisms underpinning early carcinogenesis.
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14
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Expression Profiles of Long Noncoding RNAs and Messenger RNAs in a Rat Model of Spinal Cord Injury. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2023; 2023:6033020. [PMID: 36714328 PMCID: PMC9879695 DOI: 10.1155/2023/6033020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 01/20/2023]
Abstract
Spinal cord injury (SCI) is a serious disorder of the central nervous system with a high disability rate. Long noncoding RNAs (lncRNAs) are reported to mediate many biological processes. The aim of this study was to explore lncRNA and mRNA expression profiles and functional networks after SCI. Differentially expressed genes between SCI model rats and sham controls were identified by microarray assays and analyzed by functional enrichment. Key lncRNAs were identified using a support vector machine- (SVM-) recursive feature elimination (RFE) algorithm. A trans and cis regulation model was used to analyze the regulatory relationships between lncRNAs and their targets. An lncRNA-related ceRNA network was established. We identified 5465 differentially expressed lncRNAs (DE lncRNAs) and 8366 differentially expressed mRNAs (DE mRNAs) in the SCI group compared with the sham group (fold change > 2.0, p < 0.05). Four genes were confirmed by qRT-PCR which were consistent with the microarray data. GSEA analysis showed that most marked changes occurred in pathways related to immune inflammation and nerve cell function, including cytokine-cytokine receptor interaction, neuroactive ligand-receptor interaction, and GABAergic synapse. Enrichment analysis identified 30 signaling pathways, including those associated with immune inflammation response. A total of 40 key lncRNAs were identified using the SVM-RFE algorithm. A key lncRNA-mRNAs coexpression network was generated for 230 951 lncRNA-mRNA pairs with half showing positive correlations. Several key DE lncRNAs were predicted to have "cis"- or "trans"-regulated target genes. The transcription factors, Sp1, JUN, and SOX10, may regulate the interaction between XR_001837123.1 and ETS 1. In addition, five pairs of ceRNA regulatory sequences were constructed. Many mRNAs and lncRNAs were found to be dysregulated after SCI. Bioinformatic analysis showed that DE lncRNAs may play crucial roles in SCI. It is anticipated that these findings will provide new insights into the underlying mechanisms and potential therapeutic targets for SCI.
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15
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Matsuo J, Chuang LSH, Tong JJL, Douchi D, Ito Y. Identifying Adult Stomach Tissue Stem/Progenitor Cells Using the Iqgap3-2A-CreERT2 Mouse. Methods Mol Biol 2023; 2691:3-17. [PMID: 37355533 DOI: 10.1007/978-1-0716-3331-1_1] [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] [Indexed: 06/26/2023]
Abstract
Identification of unique gene markers of normal and cancer stem cells is an effective strategy to study cells of origin and understand tumor behavior. Lineage tracing experiments using the Cre recombinase driven by a stem cell-specific promoter in the CreERT2 reporter mouse model enables identification of adult stem cells and delineation of stem cell activities in vivo. In our recent research on the mouse stomach, Iqgap3 was identified as a homeostatic stem cell marker located in the isthmus of the stomach epithelium. Lineage tracing with the Iqgap3-2A-CreERT2;Rosa26-LSL-tdTomato mouse model demonstrated stem cell activity in Iqgap3-expressing cells. Using the Iqgap3-2A-CreERT2 mouse model to target oncogenic KrasG12D expression to Iqgap3-expressing cells, we observed the rapid development of precancerous metaplasia in the stomach and proposed that aberrant Iqgap3-expressing cells may be critical determinants of early carcinogenesis. In this chapter, we detail a lineage tracing protocol to assess stem cell activity in the murine stomach. We also describe the procedure of inducing KrasG12D expression in Iqgap3-expressing homeostatic stem cells to explore their role as cells of origin and to trace the early cellular changes that precede neoplastic transformation.
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Affiliation(s)
- Junichi Matsuo
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Linda Shyue Huey Chuang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Jasmine Jie Lin Tong
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Daisuke Douchi
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai City, Japan
| | - Yoshiaki Ito
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
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16
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Wizenty J, Sigal M. Gastric Stem Cell Biology and Helicobacter pylori Infection. Curr Top Microbiol Immunol 2023; 444:1-24. [PMID: 38231213 DOI: 10.1007/978-3-031-47331-9_1] [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] [Indexed: 01/18/2024]
Abstract
Helicobacter pylori colonizes the human gastric mucosa and persists lifelong. An interactive network between the bacteria and host cells shapes a unique microbial niche within gastric glands that alters epithelial behavior, leading to pathologies such as chronic gastritis and eventually gastric cancer. Gland colonization by the bacterium initiates aberrant trajectories by inducing long-term inflammatory and regenerative gland responses, which involve various specialized epithelial and stromal cells. Recent studies using cell lineage tracing, organoids and scRNA-seq techniques have significantly advanced our knowledge of the molecular "identity" of epithelial and stromal cell subtypes during normal homeostasis and upon infection, and revealed the principles that underly stem cell (niche) behavior under homeostatic conditions as well as upon H. pylori infection. The activation of long-lived stem cells deep in the gastric glands has emerged as a key prerequisite of H. pylori-associated gastric site-specific pathologies such as hyperplasia in the antrum, and atrophy or metaplasia in the corpus, that are considered premalignant lesions. In addition to altering the behaviour of bona fide stem cells, injury-driven de-differentiation and trans-differentation programs, such as "paligenosis", subsequently allow highly specialized secretory cells to re-acquire stem cell functions, driving gland regeneration. This plastic regenerative capacity of gastric glands is required to maintain homeostasis and repair mucosal injuries. However, these processes are co-opted in the context of stepwise malignant transformation in chronic H. pylori infection, causing the emergence, selection and expansion of cancer-promoting stem cells.
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Affiliation(s)
- Jonas Wizenty
- Division of Gastroenterology and Hepatology, Medical Department, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Michael Sigal
- Division of Gastroenterology and Hepatology, Medical Department, Charité-Universitätsmedizin Berlin, Berlin, Germany.
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17
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Zheng F, Zhang W, Yang B, Chen M. Multi-omics profiling identifies C1QA/B + macrophages with multiple immune checkpoints associated with esophageal squamous cell carcinoma (ESCC) liver metastasis. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:1249. [PMID: 36544679 PMCID: PMC9761157 DOI: 10.21037/atm-22-5351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/23/2022] [Indexed: 11/30/2022]
Abstract
Background Esophageal squamous cell carcinoma (ESCC) is a highly lethal malignant tumor lacking effective treatments; 20% of ESCC patients develop liver metastasis with an extremely short survival time of ≈5 months. The tumor microenvironment (TME) plays a crucial role in tumor homeostasis, but the relationship between the ESCC TME and liver metastasis is still unknown. Methods To identify potential cell populations contributing to ESCC liver metastasis, single-cell RNA (scRNA) sequencing data were analyzed to identify the major cell populations within the TME. Each of the major cell populations was re-clustered to define detailed cell subsets. Thereafter, the gene set variation analysis (GSVA) score was calculated for the bulk RNA-seq data based on the gene signatures of each cell subset. The relationship between the GSVA score of each cellular subset and clinical outcome was further analyzed to identify the cellular subset associated with ESCC liver metastasis, which was validated by multiplex immunohistochemistry. Results C1QA/B+ tumor-associated macrophages (TAMs) acted as the central regulator of the ESCC TME, closely associated with several key cell subsets. Several immune checkpoints, including CD40, CD47 and LGALS9, were all positively expressed in C1QA/B+ macrophages, which may exert central regulatory control of immune evasion by ESCC via these immune checkpoints expressions. Conclusions Our results comprehensively revealed the landscape of tumor-infiltrating immune cells associated with ESCC prognosis and metastasis, and suggest a novel strategy for developing immunotherapies for ESCC liver metastasis by targeting C1QA/B+ TAMs.
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Affiliation(s)
- Fei Zheng
- Department of Radiation Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Wei Zhang
- Department of Radiation Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Baihua Yang
- Department of Radiation Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Mingqiu Chen
- Department of Radiation Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
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18
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Won Y, Choi E. Mouse models of Kras activation in gastric cancer. Exp Mol Med 2022; 54:1793-1798. [PMID: 36369466 PMCID: PMC9723172 DOI: 10.1038/s12276-022-00882-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 11/13/2022] Open
Abstract
Gastric cancer has one of the highest incidence rates and is one of the leading causes of cancer-related mortality worldwide. Sequential steps within the carcinogenic process are observed in gastric cancer as well as in pancreatic cancer and colorectal cancer. Kirsten rat sarcoma viral oncogene homolog (KRAS) is the most well-known oncogene and can be constitutively activated by somatic mutations in the gene locus. For over 2 decades, the functions of Kras activation in gastrointestinal (GI) cancers have been studied to elucidate its oncogenic roles during the carcinogenic process. Different approaches have been utilized to generate distinct in vivo models of GI cancer, and a number of mouse models have been established using Kras-inducible systems. In this review, we summarize the genetically engineered mouse models in which Kras is activated with cell-type and/or tissue-type specificity that are utilized for studying carcinogenic processes in gastric cancer as well as pancreatic cancer and colorectal cancer. We also provide a brief description of histological phenotypes and characteristics of those mouse models and the current limitations in the gastric cancer field to be investigated further.
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Affiliation(s)
- Yoonkyung Won
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Eunyoung Choi
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, 37232, USA.
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, 37232, USA.
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, 37232, USA.
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Comprehensive Multiomics Analysis Identified IQGAP3 as a Potential Prognostic Marker in Pan-Cancer. DISEASE MARKERS 2022; 2022:4822964. [PMID: 36164370 PMCID: PMC9508463 DOI: 10.1155/2022/4822964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/01/2022] [Indexed: 12/24/2022]
Abstract
Background IQGAP3 has important function in cancer progression and has become a potential therapeutic target as a transmembrane protein. But its role in tumor immunity and pan-cancer was not systematically investigated. This study evaluated the potential role of IQGAP3 and clinical significance in pan-cancer through combined multiomics analysis. Methods From Genotype Tissue Expression (GTEx) and The Cancer Genome Atlas (TCGA) databases, transcriptomic datasets were first obtained, and from Gene Expression Omnibus (GEO), expression profiling microarray data were acquired and integrated to systematically assess the expression differences and prognostic relevance of IQGAP3 in pancreatic cancer. Immunohistochemical data were obtained from Human Protein Atlas (HPA) to assess IQGAP3 protein expression differences, and exome data from TCGA were used to analyze IQGAP3 expression in relation to tumor mutational burden (TMB), microsatellite instability (MSI), and mutation. Additionally, we also analyzed the relationship between IQGAP3 expression and immune checkpoints, mismatch repair (MMR), and IQGAP3 relationship with methylation and copy number variation based on expression profiles. Results Microsatellite instability (MSI), immune checkpoints, mismatch repair (MMR), and tumor mutational burden (TMB) all closely interacted with IQGAP3 mRNA. In addition, detailed relationships between the immune microenvironment and IQGAP3 mRNA as well as immune cell CD4+ Th2 and myeloid-derived suppressor cells (MDSCs) were determined. Mechanistically, IQGAP3 was involved in cytoskeleton formation, T cell receptor signaling pathways, DNA damage, cell cycle, P53 pathway, Fc gamma R-mediated phagocytosis, and apoptosis. Conclusion IQGAP3 could serve as an effective prognostic biomarker for pan-cancer immune-related therapy.
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Adkins-Threats M, Mills JC. Cell plasticity in regeneration in the stomach and beyond. Curr Opin Genet Dev 2022; 75:101948. [PMID: 35809361 PMCID: PMC10378711 DOI: 10.1016/j.gde.2022.101948] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/29/2022] [Accepted: 06/01/2022] [Indexed: 11/30/2022]
Abstract
Recent studies using cell lineage-tracing techniques, organoids, and single-cell RNA sequencing analyses have revealed: 1) adult organs use cell plasticity programs to recruit progenitor cells to regenerate tissues after injury, and 2) plasticity is far more common than previously thought, even in homeostasis. Here, we focus on the complex interplay of normal stem cell differentiation and plasticity in homeostasis and after injury, using the gastric epithelium as a touchstone. We also examine common features of regenerative programs and discuss the evolutionarily conserved, stepwise process of paligenosis which reprograms mature cells into progenitors that can repair damaged tissue. Finally, we discuss how conserved plasticity programs may help us better understand pathological processes like metaplasia.
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Affiliation(s)
- Mahliyah Adkins-Threats
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, USA. https://twitter.com/@madkinsthreats
| | - Jason C Mills
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, USA; Department of Pathology & Immunology, Baylor College of Medicine, USA; Department of Molecular and Cellular Biology, Baylor College of Medicine, USA.
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21
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Dai Q, Ain Q, Rooney M, Song F, Zipprich A. Role of IQ Motif-Containing GTPase-Activating Proteins in Hepatocellular Carcinoma. Front Oncol 2022; 12:920652. [PMID: 35785216 PMCID: PMC9243542 DOI: 10.3389/fonc.2022.920652] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/10/2022] [Indexed: 11/21/2022] Open
Abstract
IQ motif-containing GTPase-activating proteins (IQGAPs) are a class of scaffolding proteins, including IQGAP1, IQGAP2, and IQGAP3, which govern multiple cellular activities by facilitating cytoskeletal remodeling and cellular signal transduction. The role of IQGAPs in cancer initiation and progression has received increasing attention in recent years, especially in hepatocellular carcinoma (HCC), where the aberrant expression of IQGAPs is closely related to patient prognosis. IQGAP1 and 3 are upregulated and are considered oncogenes in HCC, while IQGAP2 is downregulated and functions as a tumor suppressor. This review details the three IQGAP isoforms and their respective structures. The expression and role of each protein in different liver diseases and mainly in HCC, as well as the underlying mechanisms, are also presented. This review also provides a reference for further studies on IQGAPs in HCC.
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Affiliation(s)
- Qingqing Dai
- Department of Internal Medicine IV (Gastroenterology, Hepatology, and Infectious Diseases), Jena University Hospital, Jena, Germany
- Else Kröner Graduate School for Medical Students “Jena School for Ageing Medicine (JSAM)”, Jena University Hospital, Jena, Germany
| | - Quratul Ain
- Department of Internal Medicine IV (Gastroenterology, Hepatology, and Infectious Diseases), Jena University Hospital, Jena, Germany
| | - Michael Rooney
- Department of Internal Medicine IV (Gastroenterology, Hepatology, and Infectious Diseases), Jena University Hospital, Jena, Germany
| | - Fei Song
- Department of Urology, Jena University Hospital, Jena, Germany
| | - Alexander Zipprich
- Department of Internal Medicine IV (Gastroenterology, Hepatology, and Infectious Diseases), Jena University Hospital, Jena, Germany
- *Correspondence: Alexander Zipprich,
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22
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Wuputra K, Ku CC, Pan JB, Liu CJ, Liu YC, Saito S, Kato K, Lin YC, Kuo KK, Chan TF, Chong IW, Lin CS, Wu DC, Yokoyama KK. Stem Cell Biomarkers and Tumorigenesis in Gastric Cancer. J Pers Med 2022; 12:jpm12060929. [PMID: 35743714 PMCID: PMC9224738 DOI: 10.3390/jpm12060929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/25/2022] [Accepted: 05/31/2022] [Indexed: 02/01/2023] Open
Abstract
Stomach cancer has a high mortality, which is partially caused by an absence of suitable biomarkers to allow detection of the initiation stages of cancer progression. Thus, identification of critical biomarkers associated with gastric cancer (GC) is required to advance its clinical diagnoses and treatment. Recent studies using tracing models for lineage analysis of GC stem cells indicate that the cell fate decision of the gastric stem cells might be an important issue for stem cell plasticity. They include leucine-rich repeat-containing G-protein-coupled receptor 5 (Lgr5+), Cholecystokinin receptor 2 (Cckr2+), and axis inhibition protein 2 (Axin2+) as the stem cell markers in the antrum, Trefoil Factor 2 (TFF2+), Mist1+ stem cells, and Troy+ chief cells in the corpus. By contrast, Estrogen receptor 1 (eR1), Leucine-rich repeats and immunoglobulin-like domains 1 (Lrig1), SRY (sex determining region Y)-box 2 (Sox2), and B lymphoma Mo-MLV insertion region 1 homolog (Bmi1) are rich in both the antrum and corpus regions. These markers might help to identify the cell-lineage identity and analyze the plasticity of each stem cell population. Thus, identification of marker genes for the development of GC and its environment is critical for the clinical application of cancer stem cells in the prevention of stomach cancers.
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Affiliation(s)
- Kenly Wuputra
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (K.W.); (C.-C.K.); (J.-B.P.); (C.-S.L.)
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (C.-J.L.); (K.-K.K.); (D.-C.W.)
- Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
| | - Chia-Chen Ku
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (K.W.); (C.-C.K.); (J.-B.P.); (C.-S.L.)
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (C.-J.L.); (K.-K.K.); (D.-C.W.)
- Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
| | - Jia-Bin Pan
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (K.W.); (C.-C.K.); (J.-B.P.); (C.-S.L.)
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (C.-J.L.); (K.-K.K.); (D.-C.W.)
- Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
| | - Chung-Jung Liu
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (C.-J.L.); (K.-K.K.); (D.-C.W.)
- Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan
- Department of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Yi-Chang Liu
- Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
| | - Shigeo Saito
- Saito Laboratory of Cell Technology, Yaita 329-2192, Japan;
- Horus Co., Ltd., Nakano, Tokyo 164-0001, Japan
| | - Kohsuke Kato
- Department of Infection Biology, Graduate School of Comprehensive Human Sciences, The University of Tsukuba, Tsukuba 305-8577, Japan;
| | - Ying-Chu Lin
- School of Dentistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Kung-Kai Kuo
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (C.-J.L.); (K.-K.K.); (D.-C.W.)
- Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
- Division of General & Digestive Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan
| | - Te-Fu Chan
- Department of Obstetrics and Genecology, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
| | - Inn-Wen Chong
- Division of Pulmonary and Critical Care Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
| | - Chang-Shen Lin
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (K.W.); (C.-C.K.); (J.-B.P.); (C.-S.L.)
| | - Deng-Chyang Wu
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (C.-J.L.); (K.-K.K.); (D.-C.W.)
- Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan
- Department of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Obstetrics and Genecology, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
| | - Kazunari K. Yokoyama
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (K.W.); (C.-C.K.); (J.-B.P.); (C.-S.L.)
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (C.-J.L.); (K.-K.K.); (D.-C.W.)
- Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
- Correspondence: ; Tel.: +886-7312-1101 (ext. 2729); Fax: +886-7313-3849
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23
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Hoffmann W. Self-Renewal and Cancers of the Gastric Epithelium: An Update and the Role of the Lectin TFF1 as an Antral Tumor Suppressor. Int J Mol Sci 2022; 23:ijms23105377. [PMID: 35628183 PMCID: PMC9141172 DOI: 10.3390/ijms23105377] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/09/2022] [Accepted: 05/10/2022] [Indexed: 11/16/2022] Open
Abstract
In 2020, gastric cancer was the fourth leading cause of cancer deaths globally. About 90% of gastric cancers are sporadic and the vast majority are correlated with Helicobacter pylori infection; whereas familial clustering is observed in about 10% of cases. Gastric cancer is now considered to be a disease originating from dysregulated self-renewal of the gastric glands in the setting of an inflammatory environment. The human stomach contains two types of gastric units, which show bi-directional self-renewal from a complex variety of stem cells. This review focuses on recent progress concerning the characterization of the different stem cell populations and the mainly mesenchymal signals triggering their stepwise differentiation as well as the genesis of pre-cancerous lesions and carcinogenesis. Furthermore, a model is presented (Lectin-triggered Receptor Blocking Hypothesis) explaining the role of the lectin TFF1 as an antral tumor suppressor possibly regulating Lgr5+ antral stem cells in a paracrine or maybe autocrine fashion, with neighboring antral gland cells having a role as niche cells.
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Affiliation(s)
- Werner Hoffmann
- Institute of Molecular Biology and Medicinal Chemistry, Otto-von-Guericke University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany
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24
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Liabeuf D, Oshima M, Stange DE, Sigal M. Stem Cells, Helicobacter pylori, and Mutational Landscape: Utility of Preclinical Models to Understand Carcinogenesis and to Direct Management of Gastric Cancer. Gastroenterology 2022; 162:1067-1087. [PMID: 34942172 DOI: 10.1053/j.gastro.2021.12.252] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 12/20/2022]
Abstract
Several genetic and environmental factors increase gastric cancer (GC) risk, with Helicobacter pylori being the main environmental agent. GC is thought to emerge through a sequence of morphological changes that have been elucidated on the molecular level. New technologies have shed light onto pathways that are altered in GC, involving mutational and epigenetic changes and altered signaling pathways. Using various new model systems and innovative approaches, the relevance of such alterations for the emergence and progression of GC has been validated. Here, we highlight the key strategies and the resulting achievements. A major step is the characterization of epithelial stem cell behavior in the healthy stomach. These data, obtained through new reporter mouse lines and lineage tracing, enabled insights into the processes that control cellular proliferation, self-renewal, and differentiation of gastric stem cells. It has become evident that these cells and pathways are often deregulated in carcinogenesis. Second, insights into how H pylori colonizes gastric glands, directly interacts with stem cells, and alters cellular and genomic integrity, as well as the characterization of tissue responses to infection, provide a comprehensive picture of how this bacterium contributes to gastric carcinogenesis. Third, the development of stem cell- and tissue-specific reporter mice have driven our understanding of the signals and mutations that promote different types of GC and now also enable the study of more advanced, metastasized stages. Finally, organoids from human tissue have allowed insights into gastric carcinogenesis by validating mutational and signaling alterations in human primary cells and opening a route to predicting responses to personalized treatment.
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Affiliation(s)
- Dylan Liabeuf
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Medical Faculty, Technische Universität Dresden, Dresden, Germany
| | - Masanobu Oshima
- Division of Genetics, Cancer Research Institute, Kanazawa University, Kanazawa, Japan
| | - Daniel E Stange
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Medical Faculty, Technische Universität Dresden, Dresden, Germany; National Center for Tumor Diseases (NCT/UCC), Dresden, Germany, German Cancer Research Center (DKFZ), Heidelberg, Germany, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany, Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany
| | - Michael Sigal
- Department of Internal Medicine, Division of Hepatology and Gastroenterology, Charité Universitätsmedizin Berlin, Germany; Berlin Institute for Medical Systems Biology, Max Delbrück Center for Molecular Medicine, Berlin, Germany.
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25
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Goldenring JR, Mills JC. Cellular Plasticity, Reprogramming, and Regeneration: Metaplasia in the Stomach and Beyond. Gastroenterology 2022; 162:415-430. [PMID: 34728185 PMCID: PMC8792220 DOI: 10.1053/j.gastro.2021.10.036] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 10/21/2021] [Accepted: 10/24/2021] [Indexed: 02/03/2023]
Abstract
The mucosa of the body of the stomach (ie, the gastric corpus) uses 2 overlapping, depth-dependent mechanisms to respond to injury. Superficial injury heals via surface cells with histopathologic changes like foveolar hyperplasia. Deeper, usually chronic, injury/inflammation, most frequently induced by the carcinogenic bacteria Helicobacter pylori, elicits glandular histopathologic alterations, initially manifesting as pyloric (also known as pseudopyloric) metaplasia. In this pyloric metaplasia, corpus glands become antrum (pylorus)-like with loss of acid-secreting parietal cells (atrophic gastritis), expansion of foveolar cells, and reprogramming of digestive enzyme-secreting chief cells into deep antral gland-like mucous cells. After acute parietal cell loss, chief cells can reprogram through an orderly stepwise progression (paligenosis) initiated by interleukin-13-secreting innate lymphoid cells (ILC2s). First, massive lysosomal activation helps mitigate reactive oxygen species and remove damaged organelles. Second, mucus and wound-healing proteins (eg, TFF2) and other transcriptional alterations are induced, at which point the reprogrammed chief cells are recognized as mucus-secreting spasmolytic polypeptide-expressing metaplasia cells. In chronic severe injury, glands with pyloric metaplasia can harbor both actively proliferating spasmolytic polypeptide-expressing metaplasia cells and eventually intestine-like cells. Gastric glands with such lineage confusion (mixed incomplete intestinal metaplasia and proliferative spasmolytic polypeptide-expressing metaplasia) may be at particular risk for progression to dysplasia and cancer. A pyloric-like pattern of metaplasia after injury also occurs in other gastrointestinal organs including esophagus, pancreas, and intestines, and the paligenosis program itself seems broadly conserved across tissues and species. Here we discuss aspects of metaplasia in stomach, incorporating data derived from animal models and work on human cells and tissues in correlation with diagnostic and clinical implications.
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Affiliation(s)
- James R Goldenring
- Nashville Veterans Affairs Medical Center, Vanderbilt University School of Medicine, Nashville, Tennessee; Section of Surgical Sciences, Vanderbilt University School of Medicine, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee.
| | - Jason C Mills
- Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas; Department of Medicine, Baylor College of Medicine, Houston, Texas; Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas; Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas.
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26
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Douchi D, Yamamura A, Matsuo J, Lee JW, Nuttonmanit N, Melissa Lim YH, Suda K, Shimura M, Chen S, Pang S, Kohu K, Kaneko M, Kiyonari H, Kaneda A, Yoshida H, Taniuchi I, Osato M, Yang H, Unno M, Bok-Yan So J, Yeoh KG, Huey Chuang LS, Bae SC, Ito Y. A Point Mutation R122C in RUNX3 Promotes the Expansion of Isthmus Stem Cells and Inhibits Their Differentiation in the Stomach. Cell Mol Gastroenterol Hepatol 2022; 13:1317-1345. [PMID: 35074568 PMCID: PMC8933847 DOI: 10.1016/j.jcmgh.2022.01.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 12/10/2022]
Abstract
BACKGROUND & AIMS RUNX transcription factors play pivotal roles in embryonic development and neoplasia. We previously identified the single missense mutation R122C in RUNX3 from human gastric cancer. However, how RUNX3R122C mutation disrupts stem cell homeostasis and promotes gastric carcinogenesis remained unclear. METHODS To understand the oncogenic nature of this mutation in vivo, we generated the RUNX3R122C knock-in mice. Stomach tissues were harvested, followed by histologic and immunofluorescence staining, organoid culture, flow cytometry to isolate gastric corpus isthmus and nonisthmus epithelial cells, and RNA extraction for transcriptomic analysis. RESULTS The corpus tissue of RUNX3R122C/R122C homozygous mice showed a precancerous phenotype such as spasmolytic polypeptide-expressing metaplasia. We observed mucous neck cell hyperplasia; massive reduction of pit, parietal, and chief cell populations; as well as a dramatic increase in the number of rapidly proliferating isthmus stem/progenitor cells in the corpus of RUNX3R122C/R122C mice. Transcriptomic analyses of the isolated epithelial cells showed that the cell-cycle-related MYC target gene signature was enriched in the corpus epithelial cells of RUNX3R122C/R122C mice compared with the wild-type corpus. Mechanistically, RUNX3R122C mutant protein disrupted the regulation of the restriction point where cells decide to enter either a proliferative or quiescent state, thereby driving stem cell expansion and limiting the ability of cells to terminally differentiate. CONCLUSIONS RUNX3R122C missense mutation is associated with the continuous cycling of isthmus stem/progenitor cells, maturation arrest, and development of a precancerous state. This work highlights the importance of RUNX3 in the prevention of metaplasia and gastric cancer.
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Affiliation(s)
- Daisuke Douchi
- Cancer Science Institute of Singapore, National University of Singapore, Singapore; Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Akihiro Yamamura
- Cancer Science Institute of Singapore, National University of Singapore, Singapore; Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Junichi Matsuo
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Jung-Won Lee
- Department of Biochemistry, School of Medicine, Institute for Tumor Research, Chungbuk National University, Cheongju, South Korea
| | - Napat Nuttonmanit
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Yi Hui Melissa Lim
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Kazuto Suda
- Cancer Science Institute of Singapore, National University of Singapore, Singapore; Department of Pediatric General and Urogenital Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - Mitsuhiro Shimura
- Cancer Science Institute of Singapore, National University of Singapore, Singapore; Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Sabirah Chen
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - ShuChin Pang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Kazuyoshi Kohu
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Mari Kaneko
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Hiroshi Kiyonari
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Atsushi Kaneda
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hideyuki Yoshida
- YCI Laboratory for Immunological Transcriptomics, Yokohama, Japan
| | - Ichiro Taniuchi
- Laboratory for Transcriptional Regulation, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Motomi Osato
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Henry Yang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Michiaki Unno
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Jimmy Bok-Yan So
- Department of Surgery, National University Health System, Singapore
| | - Khay Guan Yeoh
- Department of Medicine, National University of Singapore, Singapore
| | | | - Suk-Chul Bae
- Department of Biochemistry, School of Medicine, Institute for Tumor Research, Chungbuk National University, Cheongju, South Korea
| | - Yoshiaki Ito
- Cancer Science Institute of Singapore, National University of Singapore, Singapore.
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27
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Generation of Human Stomach Cancer iPSC-Derived Organoids Induced by Helicobacter pylori Infection and Their Application to Gastric Cancer Research. Cells 2022; 11:cells11020184. [PMID: 35053302 PMCID: PMC8773924 DOI: 10.3390/cells11020184] [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: 11/30/2021] [Revised: 12/30/2021] [Accepted: 01/02/2022] [Indexed: 12/13/2022] Open
Abstract
There is considerable cellular diversity in the human stomach, which has helped to clarify cell plasticity in normal development and tumorigenesis. Thus, the stomach is an interesting model for understanding cellular plasticity and for developing prospective anticancer therapeutic agents. However, many questions remain regarding the development of cancers in vivo and in vitro in two- or three-dimensional (2D/3D) cultures, as well as the role of Helicobacter pylori (H. p.) infection. Here, we focus on the characteristics of cancer stem cells and their derived 3D organoids in culture, including the formation of stem cell niches. We define the conditions required for such organoid culture in vitro and examine the ability of such models for testing the use of anticancer agents. We also summarize the signaling cascades and the specific markers of stomach-cancer-derived organoids induced by H. p. infection, and their stem cell niches.
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28
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Douchi D, Yamamura A, Matsuo J, Melissa Lim YH, Nuttonmanit N, Shimura M, Suda K, Chen S, Pang S, Kohu K, Abe T, Shioi G, Kim G, Shabbir A, Srivastava S, Unno M, Bok-Yan So J, Teh M, Yeoh KG, Chuang LSH, Ito Y. Induction of Gastric Cancer by Successive Oncogenic Activation in the Corpus. Gastroenterology 2021; 161:1907-1923.e26. [PMID: 34391772 DOI: 10.1053/j.gastro.2021.08.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 07/17/2021] [Accepted: 08/09/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND & AIMS Metaplasia and dysplasia in the corpus are reportedly derived from de-differentiation of chief cells. However, the cellular origin of metaplasia and cancer remained uncertain. Therefore, we investigated whether pepsinogen C (PGC) transcript-expressing cells represent the cellular origin of metaplasia and cancer using a novel Pgc-specific CreERT2 recombinase mouse model. METHODS We generated a Pgc-mCherry-IRES-CreERT2 (Pgc-CreERT2) knock-in mouse model. Pgc-CreERT2/+ and Rosa-EYFP mice were crossed to generate Pgc-CreERT2/Rosa-EYFP (Pgc-CreERT2/YFP) mice. Gastric tissues were collected, followed by lineage-tracing experiments and histologic and immunofluorescence staining. We further established Pgc-CreERT2;KrasG12D/+ mice and investigated whether PGC transcript-expressing cells are responsible for the precancerous state in gastric glands. To investigate cancer development from PGC transcript-expressing cells with activated Kras, inactivated Apc, and Trp53 signaling pathways, we crossed Pgc-CreERT2/+ mice with conditional KrasG12D, Apcflox, Trp53flox mice. RESULTS Expectedly, mCherry mainly labeled chief cells in the Pgc-CreERT2 mice. However, mCherry was also detected throughout the neck cell and isthmal stem/progenitor regions, albeit at lower levels. In the Pgc-CreERT2;KrasG12D/+ mice, PGC transcript-expressing cells with KrasG12D/+ mutation presented pseudopyloric metaplasia. The early induction of proliferation at the isthmus may reflect the ability of isthmal progenitors to react rapidly to Pgc-driven KrasG12D/+ oncogenic mutation. Furthermore, Pgc-CreERT2;KrasG12D/+;Apcflox/flox mice presented intramucosal dysplasia/carcinoma and Pgc-CreERT2;KrasG12D/+;Apcflox/flox;Trp53flox/flox mice presented invasive and metastatic gastric carcinoma. CONCLUSIONS The Pgc-CreERT2 knock-in mouse is an invaluable tool to study the effects of successive oncogenic activation in the mouse corpus. Time-course observations can be made regarding the responses of isthmal and chief cells to oncogenic insults. We can observe stomach-specific tumorigenesis from the beginning to metastatic development.
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Affiliation(s)
- Daisuke Douchi
- Cancer Science Institute of Singapore, National University of Singapore, Singapore; Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Akihiro Yamamura
- Cancer Science Institute of Singapore, National University of Singapore, Singapore; Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Junichi Matsuo
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Yi Hui Melissa Lim
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Napat Nuttonmanit
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Mitsuhiro Shimura
- Cancer Science Institute of Singapore, National University of Singapore, Singapore; Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kazuto Suda
- Cancer Science Institute of Singapore, National University of Singapore, Singapore; Department of Pediatric General and Urogenital Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - Sabirah Chen
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - ShuChin Pang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Kazuyoshi Kohu
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Takaya Abe
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Go Shioi
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Guowei Kim
- Department of Surgery, National University Health System, National University of Singapore, Singapore
| | - Asim Shabbir
- Department of Surgery, National University Health System, National University of Singapore, Singapore
| | | | - Michiaki Unno
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Jimmy Bok-Yan So
- Department of Surgery, National University Health System, National University of Singapore, Singapore
| | - Ming Teh
- Department of Pathology, National University of Singapore, Singapore
| | - Khay Guan Yeoh
- Department of Medicine, National University of Singapore, Singapore
| | | | - Yoshiaki Ito
- Cancer Science Institute of Singapore, National University of Singapore, Singapore.
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29
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Hagen SJ. Mucosal defense: gastroduodenal injury and repair mechanisms. Curr Opin Gastroenterol 2021; 37:609-614. [PMID: 34475337 PMCID: PMC8511296 DOI: 10.1097/mog.0000000000000775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
PURPOSE OF REVIEW The mucosal barrier serves as a primary interface between the environment and host. In daily life, superficial injury to the gastric or duodenal mucosa occurs regularly but heals rapidly by a process called 'restitution'. Persistent injury to the gastroduodenal mucosa also occurs but initiates a regenerative lesion with specific wound healing mechanisms that attempt to repair barrier function. If not healed, these lesions can be the site of neoplasia development in a chronic inflammatory setting. This review summarizes the past year of advances in understanding mucosal repair in the gastroduodenal mucosa, which occurs as a defense mechanism against injury. RECENT FINDINGS Organoids are an emerging new tool that allows for the correlation of in vivo and in vitro models; organoids represent an important reductionist model to probe specific aspects of injury and repair mechanisms that are limited to epithelial cells. Additionally, proof-of-concept studies show that machine learning algorithms may ultimately assist with identifying novel, targetable pathways to pursue in therapeutic interventions. Gut-on-chip technology and single cell RNA-sequencing contributed to new understanding of gastroduodenal regenerative lesions after injury by identifying networks and interactions that are involved in the repair process. SUMMARY Recent updates provide new possibilities for identifying novel molecular targets for the treatment of acute and superficial mucosal injury, mucosal regeneration, and regenerative lesions in the gastrointestinal tract.
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Affiliation(s)
- Susan J. Hagen
- Department of Surgery
- Beth Israel Deaconess Medical Center
- Harvard Medical School, Boston, MA 02215
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Hayakawa Y, Nakagawa H, Rustgi AK, Que J, Wang TC. Stem cells and origins of cancer in the upper gastrointestinal tract. Cell Stem Cell 2021; 28:1343-1361. [PMID: 34129814 DOI: 10.1016/j.stem.2021.05.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The esophagus and stomach, joined by a unique transitional zone, contain actively dividing epithelial stem cells required for organ homeostasis. Upon prolonged inflammation, epithelial cells in both organs can undergo a cell fate switch leading to intestinal metaplasia, predisposing to malignancy. Here we discuss the biology of gastroesophageal stem cells and their role as cells of origin in cancer. We summarize the interactions between the stromal niche and gastroesophageal stem cells in metaplasia and early expansion of mutated stem-cell-derived clones during carcinogenesis. Finally, we review new approaches under development to better study gastroesophageal stem cells and advance the field.
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Affiliation(s)
- Yoku Hayakawa
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyoku, Tokyo 113-8655, Japan
| | - Hiroshi Nakagawa
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, College of Physicians and Surgeons, 1130 St. Nicholas Avenue, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, 1130 St. Nicholas Avenue, New York, NY 10032, USA
| | - Anil K Rustgi
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, College of Physicians and Surgeons, 1130 St. Nicholas Avenue, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, 1130 St. Nicholas Avenue, New York, NY 10032, USA
| | - Jianwen Que
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, College of Physicians and Surgeons, 1130 St. Nicholas Avenue, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, 1130 St. Nicholas Avenue, New York, NY 10032, USA; Columbia Center for Human Development, Department of Medicine, Columbia University, College of Physicians and Surgeons, 1130 St. Nicholas Avenue, New York, NY 10032, USA.
| | - Timothy C Wang
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, College of Physicians and Surgeons, 1130 St. Nicholas Avenue, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, 1130 St. Nicholas Avenue, New York, NY 10032, USA.
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