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Verma S, Lin X, Coulson-Thomas VJ. The Potential Reversible Transition between Stem Cells and Transient-Amplifying Cells: The Limbal Epithelial Stem Cell Perspective. Cells 2024; 13:748. [PMID: 38727284 PMCID: PMC11083486 DOI: 10.3390/cells13090748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/18/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
Stem cells (SCs) undergo asymmetric division, producing transit-amplifying cells (TACs) with increased proliferative potential that move into tissues and ultimately differentiate into a specialized cell type. Thus, TACs represent an intermediary state between stem cells and differentiated cells. In the cornea, a population of stem cells resides in the limbal region, named the limbal epithelial stem cells (LESCs). As LESCs proliferate, they generate TACs that move centripetally into the cornea and differentiate into corneal epithelial cells. Upon limbal injury, research suggests a population of progenitor-like cells that exists within the cornea can move centrifugally into the limbus, where they dedifferentiate into LESCs. Herein, we summarize recent advances made in understanding the mechanism that governs the differentiation of LESCs into TACs, and thereafter, into corneal epithelial cells. We also outline the evidence in support of the existence of progenitor-like cells in the cornea and whether TACs could represent a population of cells with progenitor-like capabilities within the cornea. Furthermore, to gain further insights into the dynamics of TACs in the cornea, we outline the most recent findings in other organ systems that support the hypothesis that TACs can dedifferentiate into SCs.
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Affiliation(s)
- Sudhir Verma
- College of Optometry, University of Houston, 4901 Calhoun Road, Houston, TX 77204, USA;
- Deen Dayal Upadhyaya College, University of Delhi, Delhi 110078, India
| | - Xiao Lin
- College of Optometry, University of Houston, 4901 Calhoun Road, Houston, TX 77204, USA;
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2
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Hanrahan AJ, Chen Z, Rosen N, Solit DB. BRAF - a tumour-agnostic drug target with lineage-specific dependencies. Nat Rev Clin Oncol 2024; 21:224-247. [PMID: 38278874 DOI: 10.1038/s41571-023-00852-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/12/2023] [Indexed: 01/28/2024]
Abstract
In June 2022, the FDA granted Accelerated Approval to the BRAF inhibitor dabrafenib in combination with the MEK inhibitor trametinib for the treatment of adult and paediatric patients (≥6 years of age) with unresectable or metastatic BRAFV600E-mutant solid tumours, except for BRAFV600E-mutant colorectal cancers. The histology-agnostic approval of dabrafenib plus trametinib marks the culmination of two decades of research into the landscape of BRAF mutations in human cancers, the biochemical mechanisms underlying BRAF-mediated tumorigenesis, and the clinical development of selective RAF and MEK inhibitors. Although the majority of patients with BRAFV600E-mutant tumours derive clinical benefit from BRAF inhibitor-based combinations, resistance to treatment develops in most. In this Review, we describe the biochemical basis for oncogenic BRAF-induced activation of MAPK signalling and pan-cancer and lineage-specific mechanisms of intrinsic, adaptive and acquired resistance to BRAF inhibitors. We also discuss novel RAF inhibitors and drug combinations designed to delay the emergence of treatment resistance and/or expand the population of patients with BRAF-mutant cancers who benefit from molecularly targeted therapies.
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Affiliation(s)
- Aphrothiti J Hanrahan
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ziyu Chen
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Physiology, Biophysics & Systems Biology, Weill Cornell Graduate School of Medical Sciences, Cornell University, New York, NY, USA
| | - Neal Rosen
- Molecular Pharmacology Program, Sloan Kettering Institute for Cancer Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Weill Cornell Medical College, Cornell University, New York, NY, USA
| | - David B Solit
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Weill Cornell Medical College, Cornell University, New York, NY, USA.
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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3
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Zhang J, Yao L, Guo Y. Interaction of BANCR in the relationship between Hashimoto's thyroiditis and papillary thyroid carcinoma expression patterns and possible molecular mechanisms. J Gene Med 2024; 26:e3663. [PMID: 38342961 DOI: 10.1002/jgm.3663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/07/2023] [Accepted: 12/25/2023] [Indexed: 02/13/2024] Open
Abstract
BACKGROUND Previous studies have established a connection between Hashimoto's thyroiditis (HT) and an increased risk of papillary thyroid carcinoma (PTC). However, the molecular mechanisms driving this association are not well understood. The long non-coding RNA (lncRNA) BRAF-activated non-coding RNA (BANCR) has been implicated in various cancers, suggesting a potential role in the HT-PTC linkage. METHODS This study investigated the expression levels of BANCR in PTC and HT samples, compared to control tissues. We also examined the association between BANCR expression and clinicopathological features, including lymph node metastasis. Furthermore, we explored the molecular mechanisms of BANCR in PTC pathogenesis and its potential as a therapeutic target. RESULTS BANCR expression was significantly lower in PTC samples than in controls, while it was moderately increased in HT samples. In PTC cases with concurrent HT, BANCR expression was markedly reduced compared to normal tissues. Our analysis revealed BANCR's role as an oncogene in PTC, influencing various cancer-related signaling pathways. Interestingly, no significant correlation was found between BANCR expression and lymph node metastasis. CONCLUSION Our findings underscore the involvement of BANCR in the connection between HT and PTC. The distinct expression patterns of BANCR in PTC and HT, especially in PTC with concurrent HT, provide new insights into the molecular interplay between these conditions. This study opens avenues for the development of innovative diagnostic and therapeutic strategies targeting BANCR in PTC and HT.
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Affiliation(s)
- Jiabo Zhang
- Department of Breast Surgery, The First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Lingli Yao
- Department of Breast Surgery, The First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Yu Guo
- Department of Breast Surgery, The First Affiliated Hospital of Ningbo University, Ningbo, China
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Madan B, Wadia SR, Patnaik S, Harmston N, Tan E, Tan IBH, Nes WD, Petretto E, Virshup DM. The cholesterol biosynthesis enzyme FAXDC2 couples Wnt/β-catenin to RTK/MAPK signaling. J Clin Invest 2024; 134:e171222. [PMID: 38488003 PMCID: PMC10940096 DOI: 10.1172/jci171222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 01/17/2024] [Indexed: 03/18/2024] Open
Abstract
Wnts, cholesterol, and MAPK signaling are essential for development and adult homeostasis. Here, we report that fatty acid hydroxylase domain containing 2 (FAXDC2), a previously uncharacterized enzyme, functions as a methyl sterol oxidase catalyzing C4 demethylation in the Kandutsch-Russell branch of the cholesterol biosynthesis pathway. FAXDC2, a paralog of MSMO1, regulated the abundance of the specific C4-methyl sterols lophenol and dihydro-T-MAS. Highlighting its clinical relevance, FAXDC2 was repressed in Wnt/β-catenin-high cancer xenografts, in a mouse genetic model of Wnt activation, and in human colorectal cancers. Moreover, in primary human colorectal cancers, the sterol lophenol, regulated by FAXDC2, accumulated in the cancerous tissues and not in adjacent normal tissues. FAXDC2 linked Wnts to RTK/MAPK signaling. Wnt inhibition drove increased recycling of RTKs and activation of the MAPK pathway, and this required FAXDC2. Blocking Wnt signaling in Wnt-high cancers caused both differentiation and senescence; and this was prevented by knockout of FAXDC2. Our data show the integration of 3 ancient pathways, Wnts, cholesterol synthesis, and RTK/MAPK signaling, in cellular proliferation and differentiation.
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Affiliation(s)
- Babita Madan
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore
| | - Shawn R. Wadia
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore
| | - Siddhi Patnaik
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore
| | - Nathan Harmston
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore
- Science Division, Yale-NUS College, Singapore
| | - Emile Tan
- Department of Colorectal Surgery, Singapore General Hospital, Singapore
| | - Iain Bee Huat Tan
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore
- Department of Medical Oncology, National Cancer Centre, Singapore
| | - W. David Nes
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - Enrico Petretto
- Center for Computational Biology and Program in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore
- Institute for Big Data and Artificial Intelligence in Medicine, School of Science, China Pharmaceutical University, Nanjing, China
| | - David M. Virshup
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore
- Department of Pediatrics, Duke University School of Medicine, Durham, North Carolina, USA
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Liu J, Liu K, Wang Y, Shi Z, Xu R, Zhang Y, Li J, Liu C, Xue B. Death receptor 5 is required for intestinal stem cell activity during intestinal epithelial renewal at homoeostasis. Cell Death Dis 2024; 15:27. [PMID: 38199990 PMCID: PMC10782029 DOI: 10.1038/s41419-023-06409-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 12/14/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024]
Abstract
Intestinal epithelial renewal, which depends on the proliferation and differentiation of intestinal stem cells (ISCs), is essential for epithelial homoeostasis. Understanding the mechanism controlling ISC activity is important. We found that death receptor 5 (DR5) gene deletion (DR5-/-) mice had impaired epithelial absorption and barrier function, resulting in delayed weight gain, which might be related to the general reduction of differentiated epithelial cells. In DR5-/- mice, the expression of ISC marker genes, the number of Olfm4+ ISCs, and the number of Ki67+ and BrdU+ cells in crypt were reduced. Furthermore, DR5 deletion inhibited the expression of lineage differentiation genes driving ISC differentiation into enterocytes, goblet cells, enteroendocrine cells, and Paneth cells. Therefore, DR5 gene loss may inhibit the intestinal epithelial renewal by dampening ISC activity. The ability of crypts from DR5-/- mice to form organoids decreased, and selective DR5 activation by Bioymifi promoted organoid growth and the expression of ISC and intestinal epithelial cell marker genes. Silencing of endogenous DR5 ligand TRAIL in organoids down-regulated the expression of ISC and intestinal epithelial cell marker genes. So, DR5 expressed in intestinal crypts was involved in the regulation of ISC activity. DR5 deletion in vivo or activation in organoids inhibited or enhanced the activity of Wnt, Notch, and BMP signalling through regulating the production of Paneth cell-derived ISC niche factors. DR5 gene deletion caused apoptosis and DNA damage in transit amplifying cells by inhibiting ERK1/2 activity in intestinal crypts. Inhibition of ERK1/2 with PD0325901 dampened the ISC activity and epithelial regeneration. In organoids, when Bioymifi's effect in activating ERK1/2 activity was completely blocked by PD0325901, its role in stimulating ISC activity and promoting epithelial regeneration was also eliminated. In summary, DR5 in intestinal crypts is essential for ISC activity during epithelial renewal under homoeostasis.
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Affiliation(s)
- Jianbo Liu
- Department of Physiology and Pathophysiology, School of basic medical science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Kaixuan Liu
- Department of Physiology and Pathophysiology, School of basic medical science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ying Wang
- Department of Physiology and Pathophysiology, School of basic medical science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ziru Shi
- Department of Physiology and Pathophysiology, School of basic medical science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Runze Xu
- Department of Physiology and Pathophysiology, School of basic medical science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yundi Zhang
- Department of Physiology and Pathophysiology, School of basic medical science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jingxin Li
- Department of Physiology and Pathophysiology, School of basic medical science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Chuanyong Liu
- Department of Physiology and Pathophysiology, School of basic medical science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Bing Xue
- Department of Physiology and Pathophysiology, School of basic medical science, Cheeloo College of Medicine, Shandong University, Jinan, China.
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Gao C, Ge H, Kuan SF, Cai C, Lu X, Esni F, Schoen R, Wang J, Chu E, Hu J. FAK loss reduces BRAF V600E-induced ERK phosphorylation to promote intestinal stemness and cecal tumor formation. Res Sq 2024:rs.3.rs-2531119. [PMID: 36778401 PMCID: PMC9915899 DOI: 10.21203/rs.3.rs-2531119/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BRAF V600E mutation is a driver mutation in the serrated pathway to colorectal cancers. BRAFV600E drives tumorigenesis through constitutive downstream extracellular signal-regulated kinase (ERK) activation, but high-intensity ERK activation can also trigger tumor suppression. Whether and how oncogenic ERK signaling can be intrinsically adjusted to a "just-right" level optimal for tumorigenesis remains undetermined. In this study, we found that FAK (Focal adhesion kinase) expression was reduced in BRAFV600E-mutant adenomas/polyps in mice and patients. In Vill-Cre;BRAFV600E/+;Fakfl/fl mice, Fak deletion maximized BRAFV600E's oncogenic activity and increased cecal tumor incidence to 100%. Mechanistically, our results showed that Fak loss, without jeopardizing BRAFV600E-induced ERK pathway transcriptional output, reduced EGFR (epidermal growth factor receptor)-dependent ERK phosphorylation. Reduction in ERK phosphorylation increased the level of Lgr4, promoting intestinal stemness and cecal tumor formation. Our findings show that a "just-right" ERK signaling optimal for BRAFV600E-induced cecal tumor formation can be achieved via Fak loss-mediated downregulation of ERK phosphorylation.
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Affiliation(s)
| | | | | | | | | | | | | | - Jing Wang
- UPMC Hillman Cancer Center/University of Pittsburgh
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7
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Guo LL, Yan RY, Du Z, Li HB, Li GL, Wu SH. Ginseng promotes the function of intestinal stem cells through the Wnt/β-catenin signaling pathway in D-galactose-induced aging mice. Exp Gerontol 2024; 185:112351. [PMID: 38135257 DOI: 10.1016/j.exger.2023.112351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 12/10/2023] [Accepted: 12/18/2023] [Indexed: 12/24/2023]
Abstract
BACKGROUND Intestinal stem cells (ISCs) are the reservoir source of various types of intestinal cells, and the decline of stem cell function in the gut may be a potential factor for aging-related disease. The present study aimed to explore the regulatory mechanisms of Panax ginseng C.A.Meyer (Araliaceae, Panax genus) that could restore gut aging by enhancing intestinal function and regulating ISCs in aging mice based on the Wnt/β-catenin signaling pathway. METHODS A total of 60 ICR male mice were randomly divided into control, model, metformin, and ginseng water decoction (GWD) 3.6, 1.8, and 0.9 g/kg groups. The aging model was induced by 1 % D-galactose (s.c. 0.1 mL/10 g) for 28 days. Moreover, GWD was given to aging mice intragastrically (i.g.) once a day for 28 successive days. The learning memory ability, pathological status, and function in the ileum tissue, the activity of digestive enzymes, and short-chain fatty acid (SCFA) content in the colon were evaluated, and the related mechanism was investigated. RESULTS Ginseng can decrease the escape latency time and increase the swimming speed and the number of crossing platforms in aging mice. Moreover, the pathology of ileum tissue improved, the length of the intestinal villi increased, and the width of the villi and the depth of the crypts decreased. The activities of trypsin, α-amylase, and lipase increased in duodenal content and intestinal mucosa. In the colon, the content of SCFA, such as acetic acid, propionic acid and butyric acid, increased, indicating that ginseng significantly improves intestinal function impairment. The mRNA expressions and protein levels of β-catenin, C-myc, GSK-3β, Lgr5, and Olfm4 were upregulated in the ginseng group. CONCLUSIONS Ginseng improves intestinal function and regulates the function of ISCs in order to protect intestinal health by activating the Wnt/β-catenin signaling pathway in aging mice.
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Affiliation(s)
- Lu Lu Guo
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Ru Yu Yan
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Zheng Du
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Han Bing Li
- Medical College, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Gen Lin Li
- Medical College, Henan University of Chinese Medicine, Zhengzhou 450046, China.
| | - Su Hui Wu
- Medical College, Henan University of Chinese Medicine, Zhengzhou 450046, China.
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8
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Peng J, Li P, Li Y, Quan J, Yao Y, Duan J, Liu X, Li H, Yuan D, Wang X. PFKP is a prospective prognostic, diagnostic, immunological and drug sensitivity predictor across pan-cancer. Sci Rep 2023; 13:17399. [PMID: 37833332 PMCID: PMC10576092 DOI: 10.1038/s41598-023-43982-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 10/01/2023] [Indexed: 10/15/2023] Open
Abstract
Phosphofructokinase, platelet (PFKP) is a rate-limiting enzyme of glycolysis that plays a decisive role in various human physio-pathological processes. PFKP has been reported to have multiple functions in different cancer types, including lung cancer and breast cancer. However, no systematic pancancer analysis of PFKP has been performed; this type of analysis could elucidate the clinical value of PFKP in terms of diagnosis, prognosis, drug sensitivity, and immunological correlation. Systematic bioinformation analysis of PFKP was performed based on several public datasets, including The Cancer Genome Atlas (TCGA), Cancer Cell Line Encyclopedia (CCLE), Genotype-Tissue Expression Project (GTEx), and Human Protein Atlas (HPA). Prospective carcinogenesis of PFKP across cancers was estimated by expression analysis, effect on patient prognosis, diagnosis significance evaluation, and immunity regulation estimation. Then, pancancer functional enrichment of PFKP was also assessed through its effect on the signaling score and gene expression profile. Finally, upstream expression regulation of PFKP was explored by promoter DNA methylation and transcription factor (TF) prediction. Our analysis revealed that high expression of PFKP was found in most cancer types. Additionally, a high level of PFKP displayed a significant correlation with poor prognosis in patients across cancers. The diagnostic value of PFKP was performed based on its positive correlation with programmed cell death-ligand 1 (PD-L1). We also found an obvious immune-regulating effect of PFKP in most cancer types. PFKP also had a strong negative correlation with several cancer drugs. Finally, ectopic expression of PFKP may depend on DNA methylation and several predicated transcription factors, including the KLF (KLF transcription factor) and Sp (Sp transcription factor) families. This pancancer analysis revealed that a high expression level of PFKP might be a useful biomarker and predictor in most cancer types. Additionally, the performance of PFKP across cancers also suggested its meaningful role in cancer immunity regulation, even in immunotherapy and drug resistance. Overall, PFKP might be explored as an auxiliary monitor for pancancer early prognosis and diagnosis.
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Affiliation(s)
- Jian Peng
- Department of Critical Care Medicine, Second Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Pingping Li
- Comprehensive Liver Cancer Center, The Fifth Medical Center of the PLA General Hospital, Beijing, 100039, China
| | - Yuan Li
- Department of Critical Care Medicine, Second Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Jichuan Quan
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100020, China
| | - Yanwei Yao
- Department of Critical Care Medicine, Second Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Junfang Duan
- Department of Critical Care Medicine, Second Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Xuemei Liu
- Department of Respiratory and Critical Care Medicine, Second People's Hospital of Taiyuan, Taiyuan, 030002, Shanxi, China
| | - Hao Li
- Department of Critical Care Medicine, Second Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
| | - Dajiang Yuan
- Department of Critical Care Medicine, Second Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
| | - Xiaoru Wang
- Department of Critical Care Medicine, Second Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
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Yan L, Zhou J, Yuan L, Ye J, Zhao X, Ren G, Chen H. Silibinin alleviates intestinal inflammation via inhibiting JNK signaling in Drosophila. Front Pharmacol 2023; 14:1246960. [PMID: 37781701 PMCID: PMC10539474 DOI: 10.3389/fphar.2023.1246960] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 09/01/2023] [Indexed: 10/03/2023] Open
Abstract
Inflammatory bowel diseases (IBDs) are characterized by chronic relapsing intestinal inflammation that causes digestive system dysfunction. For years, researchers have been working to find more effective and safer therapeutic strategies to treat these diseases. Silibinin (SIL), a flavonoid compound extracted from the seeds of milk thistle plants, possesses multiple biological activities and is traditionally applied to treat liver diseases. SIL is also widely used in the treatment of a variety of inflammatory diseases attributed to its excellent antioxidant and anti-inflammatory effects. However, the efficacy of SIL against IBDs and its mechanisms remain unclear. In this study, using Drosophila melanogaster as a model organism, we found that SIL can effectively relieve intestinal inflammation caused by dextran sulfate sodium (DSS). Our results suggested that SIL supplementation can inhibit the overproliferation of intestinal stem cells (ISCs) induced by DSS, protect intestinal barrier function, acid-base balance, and intestinal excretion function, reduce intestinal reactive oxygen species (ROS) levels and inflammatory stress, and extend the lifespan of Drosophila. Furthermore, our study demonstrated that SIL ameliorates intestinal inflammation via modulating the c-Jun N-terminal kinase (JNK) signaling pathway in Drosophila. Our research aims to provide new insight into the treatment of IBDs.
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Affiliation(s)
- La Yan
- Laboratory of Metabolism and Aging Research, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of Targeting Therapy and Immunology and Laboratory of Animal Tumor Models, Cancer Center and National Clinical Research Center for Geriatrics and Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Juanyu Zhou
- Laboratory of Metabolism and Aging Research, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lu Yuan
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, China
| | - Jinbao Ye
- Laboratory of Metabolism and Aging Research, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xudong Zhao
- Department of Targeting Therapy and Immunology and Laboratory of Animal Tumor Models, Cancer Center and National Clinical Research Center for Geriatrics and Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Gang Ren
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, China
| | - Haiyang Chen
- Laboratory of Metabolism and Aging Research, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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10
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Gao J, Cao B, Zhao R, Li H, Xu Q, Wei B. Critical Signaling Transduction Pathways and Intestinal Barrier: Implications for Pathophysiology and Therapeutics. Pharmaceuticals (Basel) 2023; 16:1216. [PMID: 37765024 PMCID: PMC10537644 DOI: 10.3390/ph16091216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023] Open
Abstract
The intestinal barrier is a sum of the functions and structures consisting of the intestinal mucosal epithelium, mucus, intestinal flora, secretory immunoglobulins, and digestive juices. It is the first-line defense mechanism that resists nonspecific infections with powerful functions that include physical, endocrine, and immune defenses. Health and physiological homeostasis are greatly dependent on the sturdiness of the intestinal barrier shield, whose dysfunction can contribute to the progression of numerous types of intestinal diseases. Disorders of internal homeostasis may also induce barrier impairment and form vicious cycles during the response to diseases. Therefore, the identification of the underlying mechanisms involved in intestinal barrier function and the development of effective drugs targeting its damage have become popular research topics. Evidence has shown that multiple signaling pathways and corresponding critical molecules are extensively involved in the regulation of the barrier pathophysiological state. Ectopic expression or activation of signaling pathways plays an essential role in the process of shield destruction. Although some drugs, such as molecular or signaling inhibitors, are currently used for the treatment of intestinal diseases, their efficacy cannot meet current medical requirements. In this review, we summarize the current achievements in research on the relationships between the intestinal barrier and signaling pathways. The limitations and future perspectives are also discussed to provide new horizons for targeted therapies for restoring intestinal barrier function that have translational potential.
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Affiliation(s)
- Jingwang Gao
- Department of General Surgery, Medical School of Chinese PLA, Beijing 100853, China; (J.G.); (R.Z.); (H.L.); (Q.X.)
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China;
| | - Bo Cao
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China;
| | - Ruiyang Zhao
- Department of General Surgery, Medical School of Chinese PLA, Beijing 100853, China; (J.G.); (R.Z.); (H.L.); (Q.X.)
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China;
| | - Hanghang Li
- Department of General Surgery, Medical School of Chinese PLA, Beijing 100853, China; (J.G.); (R.Z.); (H.L.); (Q.X.)
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China;
| | - Qixuan Xu
- Department of General Surgery, Medical School of Chinese PLA, Beijing 100853, China; (J.G.); (R.Z.); (H.L.); (Q.X.)
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China;
| | - Bo Wei
- Department of General Surgery, Medical School of Chinese PLA, Beijing 100853, China; (J.G.); (R.Z.); (H.L.); (Q.X.)
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11
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Yin L, Gao M, Xu L, Qi Y, Han L, Peng J. Single-cell analysis of cellular heterogeneity and interactions in the ischemia-reperfusion injured mouse intestine. J Pharm Anal 2023; 13:760-775. [PMID: 37577387 PMCID: PMC10422115 DOI: 10.1016/j.jpha.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 01/12/2023] [Accepted: 02/01/2023] [Indexed: 02/10/2023] Open
Abstract
Nine major cell populations among 46,716 cells were identified in mouse intestinal ischemia‒reperfusion (II/R) injury by single-cell RNA sequencing. For enterocyte cells, 11 subclusters were found, in which enterocyte cluster 1 (EC1), enterocyte cluster 3 (EC3), and enterocyte cluster 8 (EC8) were newly discovered cells in ischemia 45 min/reperfusion 720 min (I 45 min/R 720 min) group. EC1 and EC3 played roles in digestion and absorption, and EC8 played a role in cell junctions. For TA cells, after ischemia 45 min/reperfusion 90 min (I 45 min/R 90 min), many TA cells at the stage of proliferation were identified. For Paneth cells, Paneth cluster 3 was observed in the resting state of normal jejunum. After I 45 min/R 90 min, three new subsets were found, in which Paneth cluster 1 had good antigen presentation activity. The main functions of goblet cells were to synthesize and secrete mucus, and a novel subcluster (goblet cluster 5) with highly proliferative ability was discovered in I 45 min/R 90 min group. As a major part of immune system, the changes in T cells with important roles were clarified. Notably, enterocyte cells secreted Guca2b to interact with Gucy2c receptor on the membranes of stem cells, TA cells, Paneth cells, and goblet cells to elicit intercellular communication. One marker known as glutathione S-transferase mu 3 (GSTM3) affected intestinal mucosal barrier function by adjusting mitogen-activated protein kinases (MAPK) signaling during II/R injury. The data on the heterogeneity of intestinal cells, cellular communication and the mechanism of GSTM3 provide a cellular basis for treating II/R injury.
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Affiliation(s)
- Lianhong Yin
- College of Pharmacy, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Meng Gao
- College of Pharmacy, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Lina Xu
- College of Pharmacy, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Yan Qi
- College of Pharmacy, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Lan Han
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical University, Dalian, Liaoning, 116044, China
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12
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Wolf L, Boutros M. The role of Evi/Wntless in exporting Wnt proteins. Development 2023; 150:286996. [PMID: 36763105 PMCID: PMC10112924 DOI: 10.1242/dev.201352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Intercellular communication by Wnt proteins governs many essential processes during development, tissue homeostasis and disease in all metazoans. Many context-dependent effects are initiated in the Wnt-producing cells and depend on the export of lipidated Wnt proteins. Although much focus has been on understanding intracellular Wnt signal transduction, the cellular machinery responsible for Wnt secretion became better understood only recently. After lipid modification by the acyl-transferase Porcupine, Wnt proteins bind their dedicated cargo protein Evi/Wntless for transport and secretion. Evi/Wntless and Porcupine are conserved transmembrane proteins, and their 3D structures were recently determined. In this Review, we summarise studies and structural data highlighting how Wnts are transported from the ER to the plasma membrane, and the role of SNX3-retromer during the recycling of its cargo receptor Evi/Wntless. We also describe the regulation of Wnt export through a post-translational mechanism and review the importance of Wnt secretion for organ development and cancer, and as a future biomarker.
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Affiliation(s)
- Lucie Wolf
- German Cancer Research Center (DKFZ), Division of Signalling and Functional Genomics and Heidelberg University, BioQuant and Department of Cell and Molecular Biology, 69120 Heidelberg, Germany
| | - Michael Boutros
- German Cancer Research Center (DKFZ), Division of Signalling and Functional Genomics and Heidelberg University, BioQuant and Department of Cell and Molecular Biology, 69120 Heidelberg, Germany
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13
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Chen L, Li S, Peng C, Gui Q, Li J, Xu Z, Yang Y. Lactobacillus rhamnosus GG Promotes Recovery of the Colon Barrier in Septic Mice through Accelerating ISCs Regeneration. Nutrients 2023; 15. [PMID: 36771378 DOI: 10.3390/nu15030672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 02/01/2023] Open
Abstract
Disruption of the intestinal barrier is both the cause and result of sepsis. The proliferation and differentiation of intestinal stem cells (ISCs) promote the regenerative nature of intestinal epithelial cells, repairing the injured intestinal mucosal barrier; however, it is uncertain whether the recovery effects mediated by the ISCs are related to the gut microbiota. This research found that the survival rate of septic mice was improved with a Lactobacillus rhamnosus GG (LGG) treatment. Furthermore, an increased proliferation and decreased apoptosis in colon epithelial cells were observed in the LGG-treated septic mice. In vitro, we found that a LGG supernatant was effective in maintaining the colonoid morphology and proliferation under the damage of TNF-α. Both in the mice colon and the colonoid, the LGG-induced barrier repair process was accompanied by an increased expression of Lgr5+ and lysozyme+ cells. This may be attributed to the upregulation of the IL-17, retinol metabolism, NF-kappa B and the MAPK signaling pathways, among which, Tnfaip3 and Nfkbia could be used as two potential biomarkers for LGG in intestinal inflammation therapy. In conclusion, our finding suggests that LGG protects a sepsis-injured intestinal barrier by promoting ISCs regeneration, highlighting the protective mechanism of oral probiotic consumption in sepsis.
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14
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Häfliger J, Schwarzfischer M, Atrott K, Stanzel C, Morsy Y, Wawrzyniak M, Lang S, Valenta T, Basler K, Rogler G, Scharl M, Spalinger MR. Glycoprotein (GP)96 Is Essential for Maintaining Intestinal Epithelial Architecture by Supporting Its Self-Renewal Capacity. Cell Mol Gastroenterol Hepatol 2023; 15:717-739. [PMID: 36516930 PMCID: PMC9879791 DOI: 10.1016/j.jcmgh.2022.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 12/05/2022] [Accepted: 12/05/2022] [Indexed: 01/02/2023]
Abstract
BACKGROUND & AIMS Glycoprotein (GP)96 is an endoplasmic reticulum-resident master chaperone for cell surface receptors including the Wnt co-receptors low-density lipoprotein-receptor-related protein 5/6. Intestinal epithelial cell (IEC)-specific deletion of Gp96 is embryonically lethal. However, the role of GP96 in adult intestinal tissue and especially within the intestinal stem cell (ISC) niche is unknown. Here, we investigated how GP96 loss interferes with intestinal homeostasis by compromising viability, proliferation, and differentiation of IECs. METHODS Tamoxifen was used to induce Cre-mediated deletion of Gp96 in GP96-VillincreERT2 (Cre recombinase-Estrogen-Receptor Transgene 2) mice and intestinal organoids. With H&E and immunofluorescence staining we assessed alterations in intestinal morphology and the presence and localization of IEC types. Real-time polymerase chain reaction and Western blot analysis were performed to explore the molecular mechanisms underlying the severe phenotype of Gp96 KO mice and organoids. RESULTS IEC-specific deletion of Gp96 in adult mice resulted in a rapid degeneration of the stem cell niche, followed by complete eradication of the epithelial layer and death within a few days. These effects were owing to severe defects in ISC renewal and premature ISC differentiation, which resulted from defective Wnt and Notch signaling. Furthermore, depletion of GP96 led to massive induction of endoplasmic reticulum stress. Although effects on ISC renewal and adequate differentiation were partly reversed upon activation of Wnt/Notch signaling, viability could not be restored, indicating that reduced viability was mediated by other mechanisms. CONCLUSIONS Our work shows that GP96 plays a fundamental role in regulating ISC fate and epithelial regeneration and therefore is indispensable for maintaining intestinal epithelial homeostasis.
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Affiliation(s)
- Janine Häfliger
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Marlene Schwarzfischer
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Kirstin Atrott
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Claudia Stanzel
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Yasser Morsy
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Marcin Wawrzyniak
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Silvia Lang
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Tomas Valenta
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Konrad Basler
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Gerhard Rogler
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Michael Scharl
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
| | - Marianne R Spalinger
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
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15
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Flanagan DJ, Woodcock SA, Phillips C, Eagle C, Sansom OJ. Targeting ligand-dependent wnt pathway dysregulation in gastrointestinal cancers through porcupine inhibition. Pharmacol Ther 2022; 238:108179. [PMID: 35358569 PMCID: PMC9531712 DOI: 10.1016/j.pharmthera.2022.108179] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 12/20/2022]
Abstract
Gastrointestinal cancers are responsible for more cancer deaths than any other system of the body. This review summarises how Wnt pathway dysregulation contributes to the development of the most common gastrointestinal cancers, with a particular focus on the nature and frequency of upstream pathway aberrations. Tumors with upstream aberrations maintain a dependency on the presence of functional Wnt ligand, and are predicted to be tractable to inhibitors of Porcupine, an enzyme that plays a key role in Wnt secretion. We summarise available pre-clinical efficacy data from Porcupine inhibitors in vitro and in vivo, as well as potential toxicities and the data from early phase clinical trials. We appraise the rationale for biomarker-defined targeted approaches, as well as outlining future opportunities for combination with other therapeutics.
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Affiliation(s)
- Dustin J Flanagan
- Cancer Research UK Beatson Institute, Glasgow, UK; Biomedicine Discovery Institute, Monash University, Melbourne, Australia
| | | | | | | | - Owen J Sansom
- Cancer Research UK Beatson Institute, Glasgow, UK; Institute of Cancer Sciences, University of Glasgow, Glasgow, UK.
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16
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Yang J, Pei G, Sun X, Xiao Y, Miao C, Zhou L, Wang B, Yang L, Yu M, Zhang ZS, Keller ET, Yao Z, Wang Q. RhoB affects colitis through modulating cell signaling and intestinal microbiome. Microbiome 2022; 10:149. [PMID: 36114582 PMCID: PMC9482252 DOI: 10.1186/s40168-022-01347-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 08/09/2022] [Indexed: 05/28/2023]
Abstract
BACKGROUND The pathogenesis of inflammatory bowel diseases (IBD) is multifactorial, and diagnostic and treatment strategies for IBD remain to be developed. RhoB regulates multiple cell functions; however, its role in colitis is unexplored. RESULTS Here, we found RhoB was dramatically increased in colon tissues of ulcerative colitis (UC) patients and mice with DSS-induced colitis. Compared with wild type mice, RhoB+/- and RhoB-/- mice developed milder DSS-induced colitis and increased goblet cell numbers and IEC proliferation. Decreased RhoB promoted goblet cell differentiation and epithelial regeneration through inhibiting Wnt signaling pathway and activating p38 MAPK signaling pathway. Moreover, increased SCFA-producing bacteria and SCFA concentrations were detected in intestinal microbiome of both RhoB+/- and RhoB-/- mice and upregulated SCFA receptor expression was also observed. CONCLUSIONS Taken together, a higher level of RhoB is associated with UC, which also contributes to UC development through modulating cell signaling and altering intestinal bacterial composition and metabolites. These observations suggest that RhoB has potential as a biomarker and a treatment target for UC. Video Abstract.
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Affiliation(s)
- Jianming Yang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, 22 Qixiangtai Road, Heping District 300070, Tianjin, 300070, China
| | - Geng Pei
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, 22 Qixiangtai Road, Heping District 300070, Tianjin, 300070, China
| | - Xuan Sun
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, 22 Qixiangtai Road, Heping District 300070, Tianjin, 300070, China
| | - Yawen Xiao
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, 22 Qixiangtai Road, Heping District 300070, Tianjin, 300070, China
| | - Chunhui Miao
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, 22 Qixiangtai Road, Heping District 300070, Tianjin, 300070, China
| | - Lu Zhou
- Department of Gastroenterology and Hepatology, Tianjin Medical University general hospital, Tianjin Medical University, Tianjin, 300070, China
| | - Bangmao Wang
- Department of Gastroenterology and Hepatology, Tianjin Medical University general hospital, Tianjin Medical University, Tianjin, 300070, China
| | - Liu Yang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, 22 Qixiangtai Road, Heping District 300070, Tianjin, 300070, China
| | - Mingyu Yu
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, 22 Qixiangtai Road, Heping District 300070, Tianjin, 300070, China
| | - Zhi-Song Zhang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Collaborative Innovation Center for Biotherapy, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300350, China
| | - Evan T Keller
- Department of Urology, Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA
| | - Zhi Yao
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, 22 Qixiangtai Road, Heping District 300070, Tianjin, 300070, China
- The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Medical University, Tianjin, 300070, China
| | - Quan Wang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, 22 Qixiangtai Road, Heping District 300070, Tianjin, 300070, China.
- The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Medical University, Tianjin, 300070, China.
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17
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Li Y, Qiu J, Yi P, Yang J, Gu W, Li Y, Yuan C, Hao X. Isolation and synthesis of rocaglaol derivatives by inhibiting Wnt/β-catenin and MAPK signaling pathways against colorectal cancer. Bioorg Chem 2022; 129:106149. [PMID: 36116324 DOI: 10.1016/j.bioorg.2022.106149] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/30/2022] [Accepted: 09/08/2022] [Indexed: 11/02/2022]
Abstract
Eight rocaglaol derivatives with good cytotoxic activity (IC50: 0.013 ∼ 5.82 μM) were isolated from Aglaia odorata. Then, a series of novel derivatives with modifications on C3 of rocaglaol were designed, synthesized, and screened for their antitumor activities against three tumor cell lines (HEL, MDA-MB-231, and HCT116). A total of 44 derivatives exhibited significant cytotoxic activity with IC50 values lower than 1 μM. In particular, four derivatives (14, 20, 22j, and 22r) exhibited the best cytotoxic activity against HCT116 cells, with an IC50 value of 70 nM. Compound 22r with relatively low toxicity against normal cells and the best cytotoxic activity against HCT116 cells was selected for further study. Subsequent cellular mechanism studies showed that compound 22r induced apoptosis and G1 cell cycle arrest in HCT116 cells. Moreover, compound 22r inhibited both the Wnt/β-catenin and MAPK signaling pathways via key proteins, such as the phosphorylation of p38 and JNK, GSK-3β, Axin-2, etc. Therefore, our present results suggest that compound 22r is a potential candidate for developing novel anti-colorectal cancer agents in the future.
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Affiliation(s)
- Yanan Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China; School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China; Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China
| | - Jie Qiu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China; School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China; Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China
| | - Ping Yi
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China; School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China; Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China
| | - Jue Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China; School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China; Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China
| | - Wei Gu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China; School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China; Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China
| | - Yanmei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China; School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China; Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China.
| | - Chunmao Yuan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China; School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China; Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China.
| | - Xiaojiang Hao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, People's Republic of China; School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang 550025, People's Republic of China; Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, People's Republic of China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China.
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18
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Elez E, Ros J, Fernández J, Villacampa G, Moreno-Cárdenas AB, Arenillas C, Bernatowicz K, Comas R, Li S, Kodack DP, Fasani R, Garcia A, Gonzalo-Ruiz J, Piris-Gimenez A, Nuciforo P, Kerr G, Intini R, Montagna A, Germani MM, Randon G, Vivancos A, Smits R, Graus D, Perez-Lopez R, Cremolini C, Lonardi S, Pietrantonio F, Dienstmann R, Tabernero J, Toledo RA. RNF43 mutations predict response to anti-BRAF/EGFR combinatory therapies in BRAF V600E metastatic colorectal cancer. Nat Med 2022; 28:2162-2170. [PMID: 36097219 PMCID: PMC9556333 DOI: 10.1038/s41591-022-01976-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 07/26/2022] [Indexed: 11/22/2022]
Abstract
Anti-BRAF/EGFR therapy was recently approved for the treatment of metastatic BRAFV600E colorectal cancer (mCRCBRAF-V600E). However, a large fraction of patients do not respond, underscoring the need to identify molecular determinants of treatment response. Using whole-exome sequencing in a discovery cohort of patients with mCRCBRAF-V600E treated with anti-BRAF/EGFR therapy, we found that inactivating mutations in RNF43, a negative regulator of WNT, predict improved response rates and survival outcomes in patients with microsatellite-stable (MSS) tumors. Analysis of an independent validation cohort confirmed the relevance of RNF43 mutations to predicting clinical benefit (72.7% versus 30.8%; P = 0.03), as well as longer progression-free survival (hazard ratio (HR), 0.30; 95% confidence interval (CI), 0.12–0.75; P = 0.01) and overall survival (HR, 0.26; 95% CI, 0.10–0.71; P = 0.008), in patients with MSS-RNF43mutated versus MSS-RNF43wild-type tumors. Microsatellite-instable tumors invariably carried a wild-type-like RNF43 genotype encoding p.G659fs and presented an intermediate response profile. We found no association of RNF43 mutations with patient outcomes in a control cohort of patients with MSS-mCRCBRAF-V600E tumors not exposed to anti-BRAF targeted therapies. Overall, our findings suggest a cross-talk between the MAPK and WNT pathways that may modulate the antitumor activity of anti-BRAF/EGFR therapy and uncover predictive biomarkers to optimize the clinical management of these patients. The presence of inactivating mutations in RNF43, a negative regulator of WNT, in tumor cells predicts improved response rates and survival outcomes in patients with metastatic BRAFV600E colorectal cancer treated with anti-BRAF/EGFR therapy.
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Affiliation(s)
- Elena Elez
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain. .,Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.
| | - Javier Ros
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.,Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.,Oncologia Medica, Dipartimento di Medicina di Precisione, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
| | - Jose Fernández
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Guillermo Villacampa
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Ana Belén Moreno-Cárdenas
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Carlota Arenillas
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Institute of Health Carlos III (ISCIII), Madrid, Spain
| | - Kinga Bernatowicz
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Raquel Comas
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Shanshan Li
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Rotterdam, the Netherlands
| | | | - Roberta Fasani
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Ariadna Garcia
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Javier Gonzalo-Ruiz
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Alejandro Piris-Gimenez
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Paolo Nuciforo
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Grainne Kerr
- Oncology Department, Novartis Institutes for Biomedical Research, Novartis, Basel, Switzerland
| | - Rossana Intini
- Department of Oncology, Veneto Institute of Oncology IRCCS, Padova, Italy
| | - Aldo Montagna
- Department of Oncology, Veneto Institute of Oncology IRCCS, Padova, Italy
| | - Marco Maria Germani
- Unit of Medical Oncology, Azienda Ospedaliero-Universitaria Pisana, Department of Trans-lational Research and New Technologies in Medicine, University of Pisa, Pisa, Italy
| | - Giovanni Randon
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Ana Vivancos
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Ron Smits
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Rotterdam, the Netherlands
| | - Diana Graus
- Oncology Department, Novartis Institutes for Biomedical Research, Novartis, Basel, Switzerland.,Ridgeline Discovery, Basel, Switzerland
| | - Raquel Perez-Lopez
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.,Radiology Department, Vall d'Hebron University Hospital, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Chiara Cremolini
- Unit of Medical Oncology, Azienda Ospedaliero-Universitaria Pisana, Department of Trans-lational Research and New Technologies in Medicine, University of Pisa, Pisa, Italy
| | - Sara Lonardi
- Department of Oncology, Veneto Institute of Oncology IRCCS, Padova, Italy
| | - Filippo Pietrantonio
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Rodrigo Dienstmann
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Josep Tabernero
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.,Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Institute of Health Carlos III (ISCIII), Madrid, Spain.,UVic-UCC, IOB-Quirón, Barcelona, Spain
| | - Rodrigo A Toledo
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain. .,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Institute of Health Carlos III (ISCIII), Madrid, Spain.
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19
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Pond KW, Morris JM, Alkhimenok O, Varghese RP, Cabel CC, Ellis NA, Chakrabarti J, Zavros Y, Merchant JL, Thorne CA, Paek AL. Live-cell imaging in human colonic monolayers reveals ERK waves limit the stem cell compartment to maintain epithelial homeostasis. eLife 2022; 11:78837. [PMID: 36094159 PMCID: PMC9499537 DOI: 10.7554/elife.78837] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 09/11/2022] [Indexed: 11/13/2022] Open
Abstract
The establishment and maintenance of different cellular compartments in tissues is a universal requirement across all metazoans. Maintaining the correct ratio of cell types in time and space allows tissues to form patterned compartments and perform complex functions. Patterning is especially evident in the human colon, where tissue homeostasis is maintained by stem cells in crypt structures that balance proliferation and differentiation. Here, we developed a human 2D patient derived organoid (PDO) screening platform to study tissue patterning and kinase pathway dynamics in single cells. Using this system, we discovered that waves of ERK signaling induced by apoptotic cells play a critical role in maintaining tissue patterning and homeostasis. If ERK is activated acutely across all cells instead of in wavelike patterns, then tissue patterning and stem cells are lost. Conversely, if ERK activity is inhibited, then stem cells become unrestricted and expand dramatically. This work demonstrates that the colonic epithelium requires coordinated ERK signaling dynamics to maintain patterning and tissue homeostasis. Our work reveals how ERK can antagonize stem cells while supporting cell replacement and the function of the gut.
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Affiliation(s)
- Kelvin W Pond
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, United States
| | - Julia M Morris
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, United States
| | - Olga Alkhimenok
- Department of Molecular and Cellular Biology, University of Arizona, Tucson, United States
| | - Reeba P Varghese
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, United States
| | - Carly C Cabel
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, United States
| | - Nathan A Ellis
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, United States
| | - Jayati Chakrabarti
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, United States
| | - Yana Zavros
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, United States
| | - Juanita L Merchant
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, United States
| | - Curtis A Thorne
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, United States
| | - Andrew L Paek
- Department of Molecular and Cellular Biology, University of Arizona, Tucson, United States
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20
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Annunziata F, Rasa SMM, Krepelova A, Lu J, Minetti A, Omrani O, Nunna S, Adam L, Käppel S, Neri F. Paneth cells drive intestinal stem cell competition and clonality in aging and calorie restriction. Eur J Cell Biol 2022; 101:151282. [PMID: 36395573 DOI: 10.1016/j.ejcb.2022.151282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 11/03/2022] [Accepted: 11/03/2022] [Indexed: 11/06/2022] Open
Abstract
Calorie restriction has been recently shown to increase intestinal stem cell competition and to reduce mutation fixation in young mice. However, the impact of aging on this process is unknown. By employing Confetti reporter mice, here we show that, unexpectedly, old mice have more intestinal stem cell (ISC) competition than young mice. Moreover, differently from what observed in young mice, calorie restriction, when applied at late-life, decreases this process. Importantly, we also observed a strong correlation between the ISC competition and Paneth cell number. In vivo analysis and in vitro organoid experiments indicated that Paneth cells play a major role in driving intestinal stem cell competition and crypt clonality. Taken together, our results provide evidence that increasing the number of Paneth cells can increase the number of competitive ISCs, representing a valuable therapeutic target to delay fixation of mutated intestinal stem cells.
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Affiliation(s)
| | | | - Anna Krepelova
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Jing Lu
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Alberto Minetti
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Omid Omrani
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Suneetha Nunna
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Lisa Adam
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Sandra Käppel
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Francesco Neri
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany.
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21
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Li Y, Hu Q, Luoreng Z, Yang J, Wang X, Ma Y, Wei D. Differential mRNA Expression Profiling Reveals the Role of MiR-375 in Inflammation of Bovine Mammary Epithelial Cells. Animals (Basel) 2022; 12:1431. [PMID: 35681895 PMCID: PMC9179474 DOI: 10.3390/ani12111431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 05/29/2022] [Accepted: 05/30/2022] [Indexed: 02/05/2023] Open
Abstract
Simple Summary Bovine mammary epithelial cells (bMECs) are often used as cell models for mammary gland research. They are the most important cells for mammary gland function and the first line of defense for pathogen identification. MicroRNAs (miRNAs) are important regulatory factors involved in many physiological and pathological processes. Here, we examined a transcriptome profile of bovine mammary epithelial cell lines transfected with miR-375 inhibitor or negative control (NC) inhibitor, and further reveal the potential role of miR-375 in bMECs by differentially expressed mRNA analysis. We found that miR-375 potentially promotes inflammation in the mammary gland through the MAPK signaling pathway. Abstract MicroRNAs (miRNAs) are a class of small non-coding RNAs that regulate post-transcriptional gene expression and several biological processes. Bovine mammary epithelial cells (bMECs) mediate critical immune responses in the mammary gland and the occurrence of mastitis. Current research focuses on miRNA regulation of bMECs, but the miR-375 regulatory mechanism in bMECs is unclear. This study explored the role of miR-375 by profiling the transcriptome of miR-375-silenced bMECs using RNA-seq and identifying differentially expressed mRNAs (DIE-mRNAs). There were 63 DIE-mRNAs, including 48 down-regulated and 15 up-regulated mRNAs between miR-375-silenced bMECs and the controls. The Kyoto encyclopedia of genes and genomes (KEGG) and Gene Ontology (GO) functional analysis showed that the DIE-mRNAs enriched nuclear receptor subfamily 4 group A member 1 (NR4A1) and protein tyrosine phosphatase non-receptor type 5 (PTPN5) anti-inflammatory genes of the mitogen-activated protein kinase (MAPK) signaling pathway. However, they showed an opposite trend to the expression of miR-375 silencing, suggesting that miR-375 promotes bMEC inflammation through the MAPK signaling pathway. The findings of this study provide a new reference for understanding the regulation of bMEC inflammation and cow mastitis.
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22
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Kellett MP, Jatko JT, Darling CL, Ventrello SW, Bain LJ. Arsenic Exposure Impairs Intestinal Stromal Cells. Toxicol Lett 2022; 361:54-63. [PMID: 35378173 PMCID: PMC9038714 DOI: 10.1016/j.toxlet.2022.03.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 02/23/2022] [Accepted: 03/17/2022] [Indexed: 01/01/2023]
Abstract
Arsenic is a toxicant commonly found in drinking water. Even though its main route of exposure is oral, little is known of the impact of in vivo arsenic exposure on small intestine. In vitro studies have shown that arsenic decreases differentiation of stem and progenitor cells in several different tissues. Thus, small intestinal organoids were used to assess if arsenic exposure would also impair intestinal stem cell differentiation. Unexpectedly, no changes in markers of differentiated epithelial cells were seen. However, exposing mice to 100 ppb arsenic in drinking water for 5 weeks impaired distinct populations of intestinal stromal cells. Arsenic reduced the width of the pericryptal lamina propria by 1.6-fold, and reduced Pdgfra mRNA expression, which is expressed in intestinal telocytes and trophocytes, by 4.2-fold. The height or extension of Pdgfra+ telopodes into the villus tip was also significantly reduced. Transcript expression of several other stromal cell markers, such as Grem1, Gli, CD81, were reduced by 1.9-, 2.3-, and 1.4-fold, respectively. Further, significant correlations exist between levels of Pdgfra and Gli1, Grem1, and Bmp4. Our results suggest arsenic impairs intestinal trophocytes and telocytes, leading to alterations in the Bmp signaling pathway.
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23
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Zhang Y, Cai W, Li Q, Wang Y, Wang Z, Zhang Q, Xu L, Xu L, Hu X, Zhu B, Gao X, Chen Y, Gao H, Li J, Zhang L. Transcriptome Analysis of Bovine Rumen Tissue in Three Developmental Stages. Front Genet 2022; 13:821406. [PMID: 35309117 PMCID: PMC8928727 DOI: 10.3389/fgene.2022.821406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/21/2022] [Indexed: 01/23/2023] Open
Abstract
Rumen development is a crucial physiological challenge for ruminants. However, the molecular mechanism regulating rumen development has not been clearly elucidated. In this study, we investigated genes involved in rumen development in 13 rumen tissues from three developmental stages (birth, youth, and adult) using RNA sequencing. We identified that 6,048 genes were differentially expressed among three developmental stages. Using weighted correlation network analysis, we found that 12 modules were significantly associated with developmental stages. Functional annotation and protein–protein interaction (PPI) network analysis revealed that CCNB1, CCNB2, IGF1, IGF2, HMGCL, BDH1, ACAT1, HMGCS2, and CREBBP involved in rumen development. Integrated transcriptome with GWAS information of carcass weight (CW), stomach weight (SW), marbling score (MS), backfat thickness (BFT), ribeye area (REA), and lean meat weight (LMW), we found that upregulated DEGs (fold change 0∼1) in birth–youth comparison were significantly enriched with GWAS signals of MS, downregulated DEGs (fold change >3) were significantly enriched with GWAS signals of SW, and fold change 0∼1 up/downregulated DEGs in birth–adult comparison were significantly enriched with GWAS signals of CW, LMW, REA, and BFT. Furthermore, we found that GWAS signals for CW, LMW, and REA were enriched in turquoise module, and GWAS signals for CW was enriched in lightgreen module. Our study provides novel insights into the molecular mechanism underlying rumen development in cattle and highlights an integrative analysis for illustrating the genetic architecture of beef complex traits.
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Affiliation(s)
- Yapeng Zhang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wentao Cai
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qian Li
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yahui Wang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zezhao Wang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qi Zhang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lingyang Xu
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lei Xu
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
- Institute of Animal Husbandry and Veterinary Research, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Xin Hu
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Bo Zhu
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xue Gao
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yan Chen
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Huijiang Gao
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Junya Li
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
- *Correspondence: Junya Li, ; Lupei Zhang,
| | - Lupei Zhang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
- *Correspondence: Junya Li, ; Lupei Zhang,
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24
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Walter RJ, Sonnentag SJ, Munoz-Sagredo L, Merkel M, Richert L, Bunert F, Heneka YM, Loustau T, Hodder M, Ridgway RA, Sansom OJ, Mely Y, Rothbauer U, Schmitt M, Orian-Rousseau V. Wnt signaling is boosted during intestinal regeneration by a CD44-positive feedback loop. Cell Death Dis 2022; 13:168. [PMID: 35190527 PMCID: PMC8861016 DOI: 10.1038/s41419-022-04607-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 01/17/2022] [Accepted: 02/04/2022] [Indexed: 12/24/2022]
Abstract
Enhancement of Wnt signaling is fundamental for stem cell function during intestinal regeneration. Molecular modules control Wnt activity by regulating signal transduction. CD44 is such a positive regulator and a Wnt target gene. While highly expressed in intestinal crypts and used as a stem cell marker, its role during intestinal homeostasis and regeneration remains unknown. Here we propose a CD44 positive-feedback loop that boosts Wnt signal transduction, thus impacting intestinal regeneration. Excision of Cd44 in Cd44fl/fl;VillinCreERT2 mice reduced Wnt target gene expression in intestinal crypts and affected stem cell functionality in organoids. Although the integrity of the intestinal epithelium was conserved in mice lacking CD44, they were hypersensitive to dextran sulfate sodium, and showed more severe inflammation and delayed regeneration. We localized the molecular function of CD44 at the Wnt signalosome, and identified novel DVL/CD44 and AXIN/CD44 complexes. CD44 thus promotes optimal Wnt signaling during intestinal regeneration.
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Affiliation(s)
- Romina J Walter
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Steffen J Sonnentag
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Leonel Munoz-Sagredo
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Faculty of Medicine, Universidad de Valparaiso, Angamos 655, 2540064, Vina del Mar, Chile
| | - Melanie Merkel
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Ludovic Richert
- UMR 7021 CNRS, Laboratoire de Bioimagerie et Pathologies, Faculté de Pharmacie, 74 route du Rhin, 67401, Illkirch, France
| | - Felix Bunert
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Yvonne M Heneka
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Thomas Loustau
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Michael Hodder
- Cancer Research UK Beatson Institute, Garscube Estate, Switchback Road, Glasgow, G61 1BD, UK.,Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Switchback Road, Glasgow, G61 1QH, UK
| | - Rachel A Ridgway
- Cancer Research UK Beatson Institute, Garscube Estate, Switchback Road, Glasgow, G61 1BD, UK.,Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Switchback Road, Glasgow, G61 1QH, UK
| | - Owen J Sansom
- Cancer Research UK Beatson Institute, Garscube Estate, Switchback Road, Glasgow, G61 1BD, UK.,Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Switchback Road, Glasgow, G61 1QH, UK
| | - Yves Mely
- UMR 7021 CNRS, Laboratoire de Bioimagerie et Pathologies, Faculté de Pharmacie, 74 route du Rhin, 67401, Illkirch, France
| | - Ulrich Rothbauer
- NMI Natural and Medical Sciences Institute at the University of Tuebingen, Markwiesenstrasse 55, 72770, Reutlingen, Germany.,Pharmaceutical Biotechnology, Eberhard Karls University Tuebingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany
| | - Mark Schmitt
- Institute of Pharmacology, University of Marburg, Karl-von-Frisch-Strasse 2, 35043, Marburg, Germany
| | - Véronique Orian-Rousseau
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
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25
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Abstract
Deregulated Wnt/β-catenin signaling is one of the main genetic alterations in human hepatocellular carcinoma (HCC). Comprehensive genomic analyses have revealed that gain-of-function mutation of CTNNB1, which encodes β-catenin, and loss-of-function mutation of AXIN1 occur in approximately 35% of human HCC samples. Human HCCs with activation of the Wnt/β-catenin pathway demonstrate unique gene expression patterns and pathological features. Activated Wnt/β-catenin synergizes with multiple signaling cascades to drive HCC formation, and it functions through its downstream effectors. Therefore, strategies targeting Wnt/β-catenin have been pursued as possible therapeutics against HCC. Here, we review the genetic alterations and oncogenic roles of aberrant Wnt/β-catenin signaling during hepatocarcinogenesis. In addition, we discuss the implication of this pathway in HCC diagnosis, classification, and personalized treatment.
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Affiliation(s)
- Chuanrui Xu
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhong Xu
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yi Zhang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Matthias Evert
- Institute of Pathology, University of Regensburg, Regensburg, Germany
| | - Diego F Calvisi
- Institute of Pathology, University of Regensburg, Regensburg, Germany
| | - Xin Chen
- Department of Bioengineering and Therapeutic Sciences and Liver Center, UCSF, San Francisco, California, USA
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26
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Yang Y, Yuan H, Liu X, Wang Z, Li Y, Ren Y, Gao C, Jiao T, Cai Y, Zhao S. Transcriptome and Metabolome Integration Provides New Insights Into the Regulatory Networks of Tibetan Pig Alveolar Type II Epithelial Cells in Response to Hypoxia. Front Genet 2022; 13:812411. [PMID: 35126479 PMCID: PMC8814526 DOI: 10.3389/fgene.2022.812411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 01/03/2022] [Indexed: 11/19/2022] Open
Abstract
Tibetan pigs show a widespread distribution in plateau environments and exhibit striking physiological and phenotypic differences from others pigs for adaptation to hypoxic conditions. However, the regulation of mRNAs and metabolites as well as their functions in the alveolar type II epithelial (ATII) cells of Tibetan pigs remain undefined. Herein, we carried out integrated metabolomic and transcriptomic profiling of ATII cells between Tibetan pigs and Landrace pigs across environments with different oxygen levels to delineate their signature pathways. We observed that the differentially accumulated metabolites (DAMs) and differentially expressed genes (DEGs) profiles displayed marked synergy of hypoxia-related signature pathways in either Tibetan pigs or Landrace pigs. A total of 1,470 DEGs shared between normoxic (TN, ATII cells of Tibetan pigs were cultured under 21% O2; LN, ATII cells of Landrace pigs were cultured under 21% O2) and hypoxic (TL, ATII cells of Tibetan pigs were cultured under 2% O2; LL, ATII cells of Landrace pigs were cultured under 2% O2) groups and 240 DAMs were identified. Functional enrichment assessment indicated that the hypoxia-related genes and metabolites were primarily involved in glycolysis and aldosterone synthesis and secretion. We subsequently constructed an interaction network of mRNAs and metabolites related to hypoxia, such as guanosine-3′, 5′-cyclic monophosphate, Gly-Tyr, and phenylacetylglycine. These results indicated that mitogen-activated protein kinase (MAPK) signaling, aldosterone synthesis and secretion, and differences in the regulation of MCM and adenosine may play vital roles in the better adaptation of Tibetan pigs to hypoxic environments relative to Landrace pigs. This work provides a new perspective and enhances our understanding of mRNAs and metabolites that are activated in response to hypoxia in the ATII cells of Tibetan pigs.
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Affiliation(s)
- Yanan Yang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Haonan Yuan
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Xuanbo Liu
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Zhengwen Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Yongqing Li
- Xinjiang Academy of Animal Sciences, Ürümqi, China
| | - Yue Ren
- Academy of Agriculture and Animal Husbandry Sciences, Institute of Animal Husbandry and Veterinary Medicine, Lhasa, China
| | - Caixia Gao
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Ting Jiao
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
- College of Grassland Science, Gansu Agricultural University, Lanzhou, China
| | - Yuan Cai
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Shengguo Zhao
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
- *Correspondence: Shengguo Zhao,
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27
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Han YM, Gao H, Hua RX, Liang C, Guo YX, Shang HW, Lu X, Xu JD. Paneth cells and intestinal health. Shijie Huaren Xiaohua Zazhi 2021; 29:1362-1372. [DOI: 10.11569/wcjd.v29.i23.1362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Paneth cells (PC) are a group of secretory cells derived from intestinal stem cells (ISC) and colonized in the bottom of the small intestinal crypt. As an important "guardian" of intestinal health, PC can not only secrete a variety of antibacterial peptides and cytokines to regulate intestinal homeostasis and participate in immune responses, but also release growth factors to support the stem cell niche and regulate their proliferation and differentiation. Of particular concern, as a static stem cell pool, PC can acquire a stem cell-like transcriptome after the injury of intestinal tissue so as to promote regeneration and repair the damaged intestinal tissue. Particularly, PC are closely related to a number of diseases that affect intestinal health, such as inflammatory bowel disease (IBD) and colorectal cancer (CRC). The research of biological functions of PC may provide ideas for the treatment of these diseases. In summary, the role of PC in maintaining intestinal health should not be underestimated.
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Affiliation(s)
- Yi-Min Han
- 2019 Oral Medicine, Capital Medical University, Beijing 100069, China
| | - Han Gao
- Department of Physiology and Pathophysiology, Capital Medical University, Beijing 100069, China
| | - Rong-Xuan Hua
- 2020 Clinical Medicine of "5+3" Program, Capital Medical University, Beijing 100069, China
| | - Chen Liang
- Clinical Medicine, Capital Medical University, Beijing 100069, China
| | - Yue-Xin Guo
- 2019 Oral Medicine of "5+3" Program, Capital Medical University, Beijing 100069, China
| | - Hong-Wei Shang
- Experimental Teaching Center of Basic Medical Morphology, Capital Medical University, Beijing 100069, China
| | - Xin Lu
- Experimental Teaching Center of Basic Medical Morphology, Capital Medical University, Beijing 100069, China
| | - Jing-Dong Xu
- Department of Physiology and Pathophysiology, Capital Medical University, Beijing 100069, China
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28
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Hatina J, Kripnerová M, Houdek Z, Pešta M, Tichánek F. Pluripotency Stemness and Cancer: More Questions than Answers. Adv Exp Med Biol 2021. [PMID: 34725790 DOI: 10.1007/5584_2021_663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Embryonic stem cells and induced pluripotent stem cells provided us with fascinating new knowledge in recent years. Mechanistic insight into intricate regulatory circuitry governing pluripotency stemness and disclosing parallels between pluripotency stemness and cancer instigated numerous studies focusing on roles of pluripotency transcription factors, including Oct4, Sox2, Klf4, Nanog, Sall4 and Tfcp2L1, in cancer. Although generally well substantiated as tumour-promoting factors, oncogenic roles of pluripotency transcription factors and their clinical impacts are revealing themselves as increasingly complex. In certain tumours, both Oct4 and Sox2 behave as genuine oncogenes, and reporter genes driven by composite regulatory elements jointly recognized by both the factors can identify stem-like cells in a proportion of tumours. On the other hand, cancer stem cells seem to be biologically very heterogeneous both among different tumour types and among and even within individual tumours. Pluripotency transcription factors are certainly implicated in cancer stemness, but do not seem to encompass its entire spectrum. Certain cancer stem cells maintain their stemness by biological mechanisms completely different from pluripotency stemness, sometimes even by engaging signalling pathways that promote differentiation of pluripotent stem cells. Moreover, while these signalling pathways may well be antithetical to stemness in pluripotent stem cells, they may cooperate with pluripotency factors in cancer stem cells - a paradigmatic example is provided by the MAPK-AP-1 pathway. Unexpectedly, forced expression of pluripotency transcription factors in cancer cells frequently results in loss of their tumour-initiating ability, their phenotypic reversion and partial epigenetic normalization. Besides the very different signalling contexts operating in pluripotent and cancer stem cells, respectively, the pronounced dose dependency of reprogramming pluripotency factors may also contribute to the frequent loss of tumorigenicity observed in induced pluripotent cancer cells. Finally, contradictory cell-autonomous and non-cell-autonomous effects of various signalling molecules operate during pluripotency (cancer) reprogramming. The effects of pluripotency transcription factors in cancer are thus best explained within the concept of cancer stem cell heterogeneity.
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29
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Parsons MJ, Tammela T, Dow LE. WNT as a Driver and Dependency in Cancer. Cancer Discov 2021; 11:2413-2429. [PMID: 34518209 DOI: 10.1158/2159-8290.cd-21-0190] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/30/2021] [Accepted: 06/11/2021] [Indexed: 12/15/2022]
Abstract
The WNT signaling pathway is a critical regulator of development and adult tissue homeostasis and becomes dysregulated in many cancer types. Although hyperactivation of WNT signaling is common, the type and frequency of genetic WNT pathway alterations can vary dramatically between different cancers, highlighting possible cancer-specific mechanisms for WNT-driven disease. In this review, we discuss how WNT pathway disruption contributes to tumorigenesis in different organs and how WNT affects the tumor cell and immune microenvironment. Finally, we describe recent and ongoing efforts to target oncogenic WNT signaling as a therapeutic strategy. SIGNIFICANCE: WNT signaling is a fundamental regulator of tissue homeostasis and oncogenic driver in many cancer types. In this review, we highlight recent advances in our understanding of WNT signaling in cancer, particularly the complexities of WNT activation in distinct cancer types, its role in immune evasion, and the challenge of targeting the WNT pathway as a therapeutic strategy.
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Affiliation(s)
- Marie J Parsons
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, New York
| | - Tuomas Tammela
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Lukas E Dow
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, New York. .,Department of Medicine, Weill Cornell Medicine, New York, New York
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Kotani T, Ihara N, Okamoto S, Setiawan J, Konno T, Saito Y, Murata Y, Matozaki T. Role of Ras in regulation of intestinal epithelial cell homeostasis and crosstalk with Wnt signaling. PLoS One 2021; 16:e0256774. [PMID: 34437645 PMCID: PMC8389409 DOI: 10.1371/journal.pone.0256774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 08/13/2021] [Indexed: 11/18/2022] Open
Abstract
Cross talk between different signaling pathways is thought to be important for regulation of homeostasis of, as well as oncogenesis of, the intestinal epithelium. Expression of an active form of K-Ras specifically in intestinal epithelial cells (IECs) of mice (IEC-RasDA mice) resulted in the development of hyperplasia in the small intestine and colon of mice. IEC-RasDA mice also manifested the increased proliferation of IECs. In addition, the number of goblet cells markedly increased, while that of Paneth cells decreased in IEC-RasDA mice. Development of intestinal organoids was markedly enhanced for IEC-RasDA mice compared with control mice. Whereas, the expression of Wnt target genes was significantly reduced in the in intestinal crypts from IEC-RasDA mice compared with that apparent for the control. Our results thus suggest that K-Ras promotes the proliferation of IECs as well as generation of goblet cells. By contrast, Ras counter-regulates the Wnt signaling and thereby contribute to the proper regulation of intestinal epithelial cell homeostasis.
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Affiliation(s)
- Takenori Kotani
- Division of Molecular and Cellular Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Noriko Ihara
- Division of Molecular and Cellular Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Saki Okamoto
- Division of Molecular and Cellular Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Jajar Setiawan
- Division of Molecular and Cellular Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
- Department of Physiology, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Tasuku Konno
- Division of Molecular and Cellular Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yasuyuki Saito
- Division of Molecular and Cellular Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoji Murata
- Division of Molecular and Cellular Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Matozaki
- Division of Molecular and Cellular Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
- * E-mail:
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Liu J, Wu J, Wang R, Zhong D, Qiu Y, Wang H, Song Z, Zhu Y. ANKRD22 Drives Rapid Proliferation of Lgr5 + Cells and Acts as a Promising Therapeutic Target in Gastric Mucosal Injury. Cell Mol Gastroenterol Hepatol 2021; 12:1433-1455. [PMID: 34217895 PMCID: PMC8488249 DOI: 10.1016/j.jcmgh.2021.06.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 06/24/2021] [Accepted: 06/25/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND & AIMS Rapid gastric epithelial progenitor cell (EPC) proliferation and inflammatory response inhibition play key roles in promoting the repair of gastric mucosal damage. However, specific targets inducing these effects are unknown. In this study, we explored the effects of a potential target, Ankyrin repeat domain 22 (ANKRD22). METHODS An acute gastric mucosal injury model was established with Ankrd22-/- and Ankrd22+/+ mice by intragastric administration of acidified ethanol. Organoid culture and flow cytometry were performed to evaluate the effects of ANKRD22 on leucine-rich repeat-containing G-protein-coupled receptor 5-positive (Lgr5+) gastric EPC proliferation. The mechanisms by which ANKRD22 affects gastric EPC proliferation and inflammatory responses were explored by mitochondrial Ca2+ influx and immunoblotting. Candidate ANKRD22 inhibitors then were screened virtually and validated in vitro and in vivo. RESULTS After acute gastric mucosal injury, the number of Lgr5+ gastric EPCs was increased significantly in Ankrd22-/- mice compared with that in Ankrd22+/+ mice. Moreover, Ankrd22 knockout attenuated inflammatory cell infiltration into damaged gastric tissues. ANKRD22 deletion also reduced mitochondrial Ca2+ influx and cytoplasmic nuclear factor of activated T cells in gastric epithelial cells and macrophages, which further induced Lgr5+ gastric EPC proliferation and decreased macrophage release of tumor necrosis factor-α and interleukin 1α. In addition, a small molecule, AV023, was found to show similar effects to those produced by ANKRD22 deletion in vitro. Intraperitoneal injection of AV023 into the mouse model promoted the repair of gastric mucosal damage, with increased proliferation of Lgr5+ gastric EPCs and visible relief of inflammation. CONCLUSIONS ANKRD22 inhibition is a potential target-based therapeutic approach for promoting the repair of gastric mucosal damage.
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Affiliation(s)
- Jingwen Liu
- Laboratory of Gastroenterology, Hangzhou, Zhejiang, China
| | - Jingni Wu
- Laboratory of Gastroenterology, Hangzhou, Zhejiang, China
| | - Rui Wang
- Laboratory of Gastroenterology, Hangzhou, Zhejiang, China
| | - Dandan Zhong
- Laboratory of Gastroenterology, Hangzhou, Zhejiang, China
| | - Yiqing Qiu
- Department of Urology Surgery, Hangzhou, Zhejiang, China
| | - Hongping Wang
- Laboratory of Gastroenterology, Hangzhou, Zhejiang, China
| | - Zhenya Song
- Department of International Healthcare Center and General Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China,Zhenya Song, MD, Department of International Healthcare Center and General Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China. fax: (86)-571-87214404
| | - Yongliang Zhu
- Laboratory of Gastroenterology, Hangzhou, Zhejiang, China,Key Laboratory of Tumor Microenviroment and Immune Therapy of Zhejiang Province, Hangzhou, Zhejiang, China,Correspondence Address correspondence to: Yongliang Zhu, PhD, Laboratory of Gastroenterology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China.
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Dudhwala ZM, Hammond PD, Howarth GS, Cummins AG. Intestinal stem cells promote crypt fission during postnatal growth of the small intestine. BMJ Open Gastroenterol 2021; 7:bmjgast-2020-000388. [PMID: 32586946 PMCID: PMC7319781 DOI: 10.1136/bmjgast-2020-000388] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/21/2020] [Accepted: 04/24/2020] [Indexed: 12/20/2022] Open
Abstract
Objective Wnt-β-catenin signalling is essential for intestinal stem cells. Our aim was to investigate the relationship between intestinal stem cells and crypt fission which peaks during infancy. Design Duodenal biopsies were obtained during endoscopy to assess the severity of reflux oesophagitis of 15 infants, children and teenagers, which would not affect the duodenum. Samples of small intestine were also obtained from rats 7–72 days of life. Crypt fission was assessed using microdissection of 100 whole crypts and recording the percentage of bifid crypts. Intestinal LGR5+ stem cells were identified by in situ hybridisation. Rats were treated with Dickkopf to block Wnt-β-catenin signalling. Results Crypt fission peaked during infancy before declining after 3–4 years in humans and after 21 days of life in rats. Occasional mitotic figures were seen in bifid crypts during early fission. Stem cells were elevated for a greater period during infancy and childhood in humans. Clustering of Paneth cells was present around the stem cells at the crypt base. Dickkopf reduced the number of stem cells and crypt fission to 45% and 29%, respectively, of control values, showing dependence of both crypt fission and Lgr5+ stem cells on Wnt signalling. However, Dickkopf did not decrease mitotic count per crypt, indicating a difference in signalling between stem cells and their progeny in the transit amplifying zone. Conclusion Crypt fission peaks during infancy and is dependent on intestinal stem cells. This is relatively hidden by ‘a cloak of invisibility’ due to the low proliferation of stem cells.
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Affiliation(s)
- Zenab Mustansir Dudhwala
- Gastroenterology, Basil Hetzel Institute for Translational Health Research, Woodville South, South Australia, Australia .,Surgery, The University of Adelaide - North Terrace Campus, Adelaide, South Australia, Australia
| | - Paul D Hammond
- Gastroenterology, Women's and Children's Hospital Adelaide, North Adelaide, South Australia, Australia
| | - Gordon S Howarth
- Gastroenterology, Women's and Children's Hospital Adelaide, North Adelaide, South Australia, Australia.,Animal and Veterinary Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Adrian Gerard Cummins
- Surgery, The University of Adelaide - North Terrace Campus, Adelaide, South Australia, Australia.,Gastroenterology, Basil Hetzel Institute for Medical Research, Woodville South, South Australia, Australia
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Abstract
Telocytes (TCs) are newly identified interstitial cells characterized by thin and long cytoplasmic processes, called telopodes, which exhibit a distinctive moniliform shape and, often, a sinuous trajectory. Telopodes typically organize in intricate networks within the stromal space of most organs, where they communicate with neighboring cells by means of specialized cell-to-cell junctions or shedding extracellular vesicles. Hence, TCs are generally regarded as supporting cells that help in the maintenance of local tissue homeostasis, with an ever-increasing number of studies trying to explore their functions both in physiological and pathological conditions. Notably, TCs appear to be part of stem cell (SC) niches in different organs, including the intestine, skeletal muscle, heart, lung, and skin. Indeed, growing evidence points toward a possible implication of TCs in the regulation of the activity of tissue-resident SCs and in shaping the SC niche microenvironment, thus contributing to tissue renewal and repair. Here, we review how the introduction of TCs into the scientific literature has deepened our knowledge of the stromal architecture focusing on the intestine and skeletal muscle, two organs in which the recently unveiled unique relationship between TCs and SCs is currently in the spotlight as potential target for tissue regenerative purposes.
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Affiliation(s)
- Irene Rosa
- Section of Anatomy and Histology, Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Mirca Marini
- Section of Anatomy and Histology, Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Mirko Manetti
- Section of Anatomy and Histology, Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
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Cray P, Sheahan BJ, Dekaney CM. Secretory Sorcery: Paneth Cell Control of Intestinal Repair and Homeostasis. Cell Mol Gastroenterol Hepatol 2021; 12:1239-50. [PMID: 34153524 DOI: 10.1016/j.jcmgh.2021.06.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 06/08/2021] [Accepted: 06/09/2021] [Indexed: 12/18/2022]
Abstract
Paneth cells are professional secretory cells that classically play a role in the innate immune system by secreting antimicrobial factors into the lumen to control enteric bacteria. In this role, Paneth cells are able to sense cues from luminal bacteria and respond by changing production of these factors to protect the epithelial barrier. Paneth cells rely on autophagy to regulate their secretory capability and capacity. Disruption of this pathway through mutation of genes, such as Atg16L1, results in decreased Paneth cell function, dysregulated enteric microbiota, decreased barrier integrity, and increased risk of diseases such as Crohn's disease in humans. Upon differentiation Paneth cells migrate downward and intercalate among active intestinal stem cells at the base of small intestinal crypts. This localization puts them in a unique position to interact with active intestinal stem cells, and recent work shows that Paneth cells play a critical role in influencing the intestinal stem cell niche. This review discusses the numerous ways Paneth cells can influence intestinal stem cells and their niche. We also highlight the ways in which Paneth cells can alter cells and other organ systems.
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Yanardag S, Pugacheva EN. Primary Cilium Is Involved in Stem Cell Differentiation and Renewal through the Regulation of Multiple Signaling Pathways. Cells 2021; 10:1428. [PMID: 34201019 PMCID: PMC8226522 DOI: 10.3390/cells10061428] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/02/2021] [Accepted: 06/04/2021] [Indexed: 12/15/2022] Open
Abstract
Signaling networks guide stem cells during their lineage specification and terminal differentiation. Primary cilium, an antenna-like protrusion, directly or indirectly plays a significant role in this guidance. All stem cells characterized so far have primary cilia. They serve as entry- or check-points for various signaling events by controlling the signal transduction and stability. Thus, defects in the primary cilia formation or dynamics cause developmental and health problems, including but not limited to obesity, cardiovascular and renal anomalies, hearing and vision loss, and even cancers. In this review, we focus on the recent findings of how primary cilium controls various signaling pathways during stem cell differentiation and identify potential gaps in the field for future research.
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Affiliation(s)
- Sila Yanardag
- Department of Biochemistry, School of Medicine, West Virginia University, Morgantown, WV 26506, USA;
| | - Elena N. Pugacheva
- Department of Biochemistry, School of Medicine, West Virginia University, Morgantown, WV 26506, USA;
- West Virginia University Cancer Institute, School of Medicine, West Virginia University, Morgantown, WV 26506, USA
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Leach JDG, Vlahov N, Tsantoulis P, Ridgway RA, Flanagan DJ, Gilroy K, Sphyris N, Vázquez EG, Vincent DF, Faller WJ, Hodder MC, Raven A, Fey S, Najumudeen AK, Strathdee D, Nixon C, Hughes M, Clark W, Shaw R, van Hooff SR, Huels DJ, Medema JP, Barry ST, Frame MC, Unciti-Broceta A, Leedham SJ, Inman GJ, Jackstadt R, Thompson BJ, Campbell AD, Tejpar S, Sansom OJ. Oncogenic BRAF, unrestrained by TGFβ-receptor signalling, drives right-sided colonic tumorigenesis. Nat Commun 2021. [PMID: 34103493 DOI: 10.1038/s41467‐021‐23717‐5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Right-sided (proximal) colorectal cancer (CRC) has a poor prognosis and a distinct mutational profile, characterized by oncogenic BRAF mutations and aberrations in mismatch repair and TGFβ signalling. Here, we describe a mouse model of right-sided colon cancer driven by oncogenic BRAF and loss of epithelial TGFβ-receptor signalling. The proximal colonic tumours that develop in this model exhibit a foetal-like progenitor phenotype (Ly6a/Sca1+) and, importantly, lack expression of Lgr5 and its associated intestinal stem cell signature. These features are recapitulated in human BRAF-mutant, right-sided CRCs and represent fundamental differences between left- and right-sided disease. Microbial-driven inflammation supports the initiation and progression of these tumours with foetal-like characteristics, consistent with their predilection for the microbe-rich right colon and their antibiotic sensitivity. While MAPK-pathway activating mutations drive this foetal-like signature via ERK-dependent activation of the transcriptional coactivator YAP, the same foetal-like transcriptional programs are also initiated by inflammation in a MAPK-independent manner. Importantly, in both contexts, epithelial TGFβ-receptor signalling is instrumental in suppressing the tumorigenic potential of these foetal-like progenitor cells.
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Affiliation(s)
- Joshua D G Leach
- Cancer Research UK Beatson Institute, Glasgow, UK.,Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | | | - Petros Tsantoulis
- Department of Medical Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Department of Oncology, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | | | | | | | | | - Ester G Vázquez
- Gastrointestinal Stem Cell Biology Lab, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | | | - William J Faller
- Division of Oncogenomics, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Michael C Hodder
- Cancer Research UK Beatson Institute, Glasgow, UK.,Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | | | - Sigrid Fey
- Cancer Research UK Beatson Institute, Glasgow, UK.,Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | | | | | - Colin Nixon
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - Mark Hughes
- Cancer Research UK Beatson Institute, Glasgow, UK
| | | | - Robin Shaw
- Cancer Research UK Beatson Institute, Glasgow, UK
| | | | - Sander R van Hooff
- Laboratory for Experimental Oncology and Radiobiology (LEXOR), Center for Experimental Molecular Medicine (CEMM) and Cancer Center Amsterdam, Academic Medical Center, Amsterdam, The Netherlands.,Oncode Institute, Academic Medical Center, Amsterdam, The Netherlands
| | - David J Huels
- Laboratory for Experimental Oncology and Radiobiology (LEXOR), Center for Experimental Molecular Medicine (CEMM) and Cancer Center Amsterdam, Academic Medical Center, Amsterdam, The Netherlands.,Oncode Institute, Academic Medical Center, Amsterdam, The Netherlands
| | - Jan Paul Medema
- Laboratory for Experimental Oncology and Radiobiology (LEXOR), Center for Experimental Molecular Medicine (CEMM) and Cancer Center Amsterdam, Academic Medical Center, Amsterdam, The Netherlands.,Oncode Institute, Academic Medical Center, Amsterdam, The Netherlands
| | - Simon T Barry
- Bioscience, Early Oncology, AstraZeneca, Cambridge, UK
| | - Margaret C Frame
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Asier Unciti-Broceta
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Simon J Leedham
- Gastrointestinal Stem Cell Biology Lab, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Gareth J Inman
- Cancer Research UK Beatson Institute, Glasgow, UK.,Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | | | - Barry J Thompson
- EMBL Australia, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | | | - Sabine Tejpar
- Molecular Digestive Oncology, Department of Oncology, University of Leuven, Leuven, Belgium
| | - Owen J Sansom
- Cancer Research UK Beatson Institute, Glasgow, UK. .,Institute of Cancer Sciences, University of Glasgow, Glasgow, UK.
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Leach JDG, Vlahov N, Tsantoulis P, Ridgway RA, Flanagan DJ, Gilroy K, Sphyris N, Vázquez EG, Vincent DF, Faller WJ, Hodder MC, Raven A, Fey S, Najumudeen AK, Strathdee D, Nixon C, Hughes M, Clark W, Shaw R, van Hooff SR, Huels DJ, Medema JP, Barry ST, Frame MC, Unciti-Broceta A, Leedham SJ, Inman GJ, Jackstadt R, Thompson BJ, Campbell AD, Tejpar S, Sansom OJ. Oncogenic BRAF, unrestrained by TGFβ-receptor signalling, drives right-sided colonic tumorigenesis. Nat Commun 2021; 12:3464. [PMID: 34103493 PMCID: PMC8187652 DOI: 10.1038/s41467-021-23717-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 05/11/2021] [Indexed: 02/08/2023] Open
Abstract
Right-sided (proximal) colorectal cancer (CRC) has a poor prognosis and a distinct mutational profile, characterized by oncogenic BRAF mutations and aberrations in mismatch repair and TGFβ signalling. Here, we describe a mouse model of right-sided colon cancer driven by oncogenic BRAF and loss of epithelial TGFβ-receptor signalling. The proximal colonic tumours that develop in this model exhibit a foetal-like progenitor phenotype (Ly6a/Sca1+) and, importantly, lack expression of Lgr5 and its associated intestinal stem cell signature. These features are recapitulated in human BRAF-mutant, right-sided CRCs and represent fundamental differences between left- and right-sided disease. Microbial-driven inflammation supports the initiation and progression of these tumours with foetal-like characteristics, consistent with their predilection for the microbe-rich right colon and their antibiotic sensitivity. While MAPK-pathway activating mutations drive this foetal-like signature via ERK-dependent activation of the transcriptional coactivator YAP, the same foetal-like transcriptional programs are also initiated by inflammation in a MAPK-independent manner. Importantly, in both contexts, epithelial TGFβ-receptor signalling is instrumental in suppressing the tumorigenic potential of these foetal-like progenitor cells.
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Affiliation(s)
- Joshua D G Leach
- Cancer Research UK Beatson Institute, Glasgow, UK
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | | | - Petros Tsantoulis
- Department of Medical Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Department of Oncology, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | | | | | | | | | - Ester G Vázquez
- Gastrointestinal Stem Cell Biology Lab, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | | | - William J Faller
- Division of Oncogenomics, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Michael C Hodder
- Cancer Research UK Beatson Institute, Glasgow, UK
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | | | - Sigrid Fey
- Cancer Research UK Beatson Institute, Glasgow, UK
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | | | | | - Colin Nixon
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - Mark Hughes
- Cancer Research UK Beatson Institute, Glasgow, UK
| | | | - Robin Shaw
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - Sander R van Hooff
- Laboratory for Experimental Oncology and Radiobiology (LEXOR), Center for Experimental Molecular Medicine (CEMM) and Cancer Center Amsterdam, Academic Medical Center, Amsterdam, The Netherlands
- Oncode Institute, Academic Medical Center, Amsterdam, The Netherlands
| | - David J Huels
- Laboratory for Experimental Oncology and Radiobiology (LEXOR), Center for Experimental Molecular Medicine (CEMM) and Cancer Center Amsterdam, Academic Medical Center, Amsterdam, The Netherlands
- Oncode Institute, Academic Medical Center, Amsterdam, The Netherlands
| | - Jan Paul Medema
- Laboratory for Experimental Oncology and Radiobiology (LEXOR), Center for Experimental Molecular Medicine (CEMM) and Cancer Center Amsterdam, Academic Medical Center, Amsterdam, The Netherlands
- Oncode Institute, Academic Medical Center, Amsterdam, The Netherlands
| | - Simon T Barry
- Bioscience, Early Oncology, AstraZeneca, Cambridge, UK
| | - Margaret C Frame
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Asier Unciti-Broceta
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Simon J Leedham
- Gastrointestinal Stem Cell Biology Lab, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Gareth J Inman
- Cancer Research UK Beatson Institute, Glasgow, UK
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | | | - Barry J Thompson
- EMBL Australia, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | | | - Sabine Tejpar
- Molecular Digestive Oncology, Department of Oncology, University of Leuven, Leuven, Belgium
| | - Owen J Sansom
- Cancer Research UK Beatson Institute, Glasgow, UK.
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK.
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Krishnan M, Kumar S, Kangale LJ, Ghigo E, Abnave P. The Act of Controlling Adult Stem Cell Dynamics: Insights from Animal Models. Biomolecules 2021; 11:biom11050667. [PMID: 33946143 PMCID: PMC8144950 DOI: 10.3390/biom11050667] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 04/02/2021] [Accepted: 04/09/2021] [Indexed: 12/12/2022] Open
Abstract
Adult stem cells (ASCs) are the undifferentiated cells that possess self-renewal and differentiation abilities. They are present in all major organ systems of the body and are uniquely reserved there during development for tissue maintenance during homeostasis, injury, and infection. They do so by promptly modulating the dynamics of proliferation, differentiation, survival, and migration. Any imbalance in these processes may result in regeneration failure or developing cancer. Hence, the dynamics of these various behaviors of ASCs need to always be precisely controlled. Several genetic and epigenetic factors have been demonstrated to be involved in tightly regulating the proliferation, differentiation, and self-renewal of ASCs. Understanding these mechanisms is of great importance, given the role of stem cells in regenerative medicine. Investigations on various animal models have played a significant part in enriching our knowledge and giving In Vivo in-sight into such ASCs regulatory mechanisms. In this review, we have discussed the recent In Vivo studies demonstrating the role of various genetic factors in regulating dynamics of different ASCs viz. intestinal stem cells (ISCs), neural stem cells (NSCs), hematopoietic stem cells (HSCs), and epidermal stem cells (Ep-SCs).
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Affiliation(s)
- Meera Krishnan
- Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Gurgaon-Faridabad Ex-pressway, Faridabad 121001, India; (M.K.); (S.K.)
| | - Sahil Kumar
- Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Gurgaon-Faridabad Ex-pressway, Faridabad 121001, India; (M.K.); (S.K.)
| | - Luis Johnson Kangale
- IRD, AP-HM, SSA, VITROME, Aix-Marseille University, 13385 Marseille, France;
- Institut Hospitalo Universitaire Méditerranée Infection, 13385 Marseille, France;
| | - Eric Ghigo
- Institut Hospitalo Universitaire Méditerranée Infection, 13385 Marseille, France;
- TechnoJouvence, 13385 Marseille, France
| | - Prasad Abnave
- Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Gurgaon-Faridabad Ex-pressway, Faridabad 121001, India; (M.K.); (S.K.)
- Correspondence:
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Zewdu R, Mehrabad EM, Ingram K, Fang P, Gillis KL, Camolotto SA, Orstad G, Jones A, Mendoza MC, Spike BT, Snyder EL. An NKX2-1/ERK/WNT feedback loop modulates gastric identity and response to targeted therapy in lung adenocarcinoma. eLife 2021; 10:e66788. [PMID: 33821796 PMCID: PMC8102067 DOI: 10.7554/elife.66788] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 04/05/2021] [Indexed: 12/13/2022] Open
Abstract
Cancer cells undergo lineage switching during natural progression and in response to therapy. NKX2-1 loss in human and murine lung adenocarcinoma leads to invasive mucinous adenocarcinoma (IMA), a lung cancer subtype that exhibits gastric differentiation and harbors a distinct spectrum of driver oncogenes. In murine BRAFV600E-driven lung adenocarcinoma, NKX2-1 is required for early tumorigenesis, but dispensable for established tumor growth. NKX2-1-deficient, BRAFV600E-driven tumors resemble human IMA and exhibit a distinct response to BRAF/MEK inhibitors. Whereas BRAF/MEK inhibitors drive NKX2-1-positive tumor cells into quiescence, NKX2-1-negative cells fail to exit the cell cycle after the same therapy. BRAF/MEK inhibitors induce cell identity switching in NKX2-1-negative lung tumors within the gastric lineage, which is driven in part by WNT signaling and FoxA1/2. These data elucidate a complex, reciprocal relationship between lineage specifiers and oncogenic signaling pathways in the regulation of lung adenocarcinoma identity that is likely to impact lineage-specific therapeutic strategies.
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Affiliation(s)
- Rediet Zewdu
- Huntsman Cancer InstituteSalt Lake CityUnited States
- Department of Pathology, University of UtahSalt Lake CityUnited States
| | - Elnaz Mirzaei Mehrabad
- Huntsman Cancer InstituteSalt Lake CityUnited States
- School of Computing, University of UtahSalt Lake CityUnited States
| | - Kelley Ingram
- Huntsman Cancer InstituteSalt Lake CityUnited States
- Department of Oncological Sciences, University of UtahSalt Lake CityUnited States
| | - Pengshu Fang
- Huntsman Cancer InstituteSalt Lake CityUnited States
- Department of Oncological Sciences, University of UtahSalt Lake CityUnited States
| | - Katherine L Gillis
- Huntsman Cancer InstituteSalt Lake CityUnited States
- Department of Oncological Sciences, University of UtahSalt Lake CityUnited States
| | - Soledad A Camolotto
- Huntsman Cancer InstituteSalt Lake CityUnited States
- Department of Pathology, University of UtahSalt Lake CityUnited States
| | - Grace Orstad
- Huntsman Cancer InstituteSalt Lake CityUnited States
- Department of Oncological Sciences, University of UtahSalt Lake CityUnited States
| | - Alex Jones
- Huntsman Cancer InstituteSalt Lake CityUnited States
- Department of Pathology, University of UtahSalt Lake CityUnited States
| | - Michelle C Mendoza
- Huntsman Cancer InstituteSalt Lake CityUnited States
- Department of Oncological Sciences, University of UtahSalt Lake CityUnited States
| | - Benjamin T Spike
- Huntsman Cancer InstituteSalt Lake CityUnited States
- Department of Oncological Sciences, University of UtahSalt Lake CityUnited States
| | - Eric L Snyder
- Huntsman Cancer InstituteSalt Lake CityUnited States
- Department of Pathology, University of UtahSalt Lake CityUnited States
- Department of Oncological Sciences, University of UtahSalt Lake CityUnited States
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Wisniewski PJ, Nagarkatti M, Nagarkatti PS. Regulation of Intestinal Stem Cell Stemness by the Aryl Hydrocarbon Receptor and Its Ligands. Front Immunol 2021; 12:638725. [PMID: 33777031 PMCID: PMC7988095 DOI: 10.3389/fimmu.2021.638725] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/08/2021] [Indexed: 12/15/2022] Open
Abstract
Maintenance of intestinal homeostasis requires the integration of immunological and molecular processes together with environmental, diet, metabolic and microbial cues. Key to this homeostasis is the proper functioning of epithelial cells originating from intestinal stem cells (ISCs). While local factors and numerous molecular pathways govern the ISC niche, the conduit through which these processes work in concordance is the aryl hydrocarbon receptor (AhR), a ligand-activated transcription factor, whose role in immunoregulation is critical at barrier surfaces. In this review, we discuss how AhR signaling is emerging as one of the critical regulators of molecular pathways involved in epithelial cell renewal. In addition, we examine the putative contribution of specific AhR ligands to ISC stemness and epithelial cell fate.
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Affiliation(s)
- Paul J Wisniewski
- Pathology, Microbiology and Immunology, School of Medicine, University of South Carolina, Columbia, SC, United States
| | - Mitzi Nagarkatti
- Pathology, Microbiology and Immunology, School of Medicine, University of South Carolina, Columbia, SC, United States
| | - Prakash S Nagarkatti
- Pathology, Microbiology and Immunology, School of Medicine, University of South Carolina, Columbia, SC, United States
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Sun D, Yin Y, Guo C, Liu L, Mao S, Zhu W, Liu J. Transcriptomic analysis reveals the molecular mechanisms of rumen wall morphological and functional development induced by different solid diet introduction in a lamb model. J Anim Sci Biotechnol 2021; 12:33. [PMID: 33750470 PMCID: PMC7944623 DOI: 10.1186/s40104-021-00556-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 01/12/2021] [Indexed: 11/17/2022] Open
Abstract
Background This study aimed to elucidate the molecular mechanisms of solid diet introduction initiating the cellular growth and maturation of rumen tissues and characterize the shared and unique biological processes upon different solid diet regimes. Methods Twenty-four Hu lambs were randomly allocated to three groups fed following diets: goat milk powder only (M, n = 8), goat milk powder + alfalfa hay (MH, n = 8), and goat milk powder + concentrate starter (MC, n = 8). At 42 days of age, the lambs were slaughtered. Ruminal fluid sample was collected for analysis of concentration of volatile fatty acid (VFA) and microbial crude protein (MCP). The sample of the rumen wall from the ventral sac was collected for analysis of rumen papilla morphology and transcriptomics. Results Compared with the M group, MH and MC group had a higher concentration of VFA, MCP, rumen weight, and rumen papilla area. The transcriptomic results of rumen wall showed that there were 312 shared differentially expressed genes (DEGs) between in “MH vs. M” and “MC vs. M”, and 232 or 796 unique DEGs observed in “MH vs. M” or “MC vs. M”, respectively. The shared DEGs were most enriched in VFA absorption and metabolism, such as peroxisome proliferator-activated receptor (PPAR) signaling pathway, butanoate metabolism, and synthesis and degradation of ketone bodies. Additionally, a weighted gene co-expression network analysis identified M16 (2,052 genes) and M18 (579 genes) modules were positively correlated with VFA and rumen wall morphology. The M16 module was mainly related to metabolism pathway, while the M18 module was mainly associated with signaling transport. Moreover, hay specifically depressed expression of genes involved in cytokine production, immune response, and immunocyte activation, and concentrate starter mainly altered nutrient transport and metabolism, especially ion transport, amino acid, and fatty acid metabolism. Conclusions The energy production during VFA metabolism may drive the rumen wall development directly. The hay introduction facilitated establishment of immune function, while the concentrate starter enhanced nutrient transport and metabolism, which are important biological processes required for rumen development. Supplementary Information The online version contains supplementary material available at 10.1186/s40104-021-00556-4.
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Affiliation(s)
- Daming Sun
- Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.,National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China.,National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yuyang Yin
- Huzhou Academy of Agricultural Sciences, Huzhou, 313000, China
| | - Changzheng Guo
- Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.,National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China.,National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lixiang Liu
- Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.,National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China.,National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shengyong Mao
- Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.,National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China.,National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, 210095, China
| | - Weiyun Zhu
- Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.,National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China.,National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, 210095, China
| | - Junhua Liu
- Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China. .,National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China. .,National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, 210095, China.
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Sphyris N, Hodder MC, Sansom OJ. Subversion of Niche-Signalling Pathways in Colorectal Cancer: What Makes and Breaks the Intestinal Stem Cell. Cancers (Basel) 2021; 13:1000. [PMID: 33673710 PMCID: PMC7957493 DOI: 10.3390/cancers13051000] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/15/2021] [Accepted: 02/17/2021] [Indexed: 12/12/2022] Open
Abstract
The intestinal epithelium fulfils pleiotropic functions in nutrient uptake, waste elimination, and immune surveillance while also forming a barrier against luminal toxins and gut-resident microbiota. Incessantly barraged by extraneous stresses, the intestine must continuously replenish its epithelial lining and regenerate the full gamut of specialized cell types that underpin its functions. Homeostatic remodelling is orchestrated by the intestinal stem cell (ISC) niche: a convergence of epithelial- and stromal-derived cues, which maintains ISCs in a multipotent state. Following demise of homeostatic ISCs post injury, plasticity is pervasive among multiple populations of reserve stem-like cells, lineage-committed progenitors, and/or fully differentiated cell types, all of which can contribute to regeneration and repair. Failure to restore the epithelial barrier risks seepage of toxic luminal contents, resulting in inflammation and likely predisposing to tumour formation. Here, we explore how homeostatic niche-signalling pathways are subverted in tumorigenesis, enabling ISCs to gain autonomy from niche restraints ("ISC emancipation") and transform into cancer stem cells capable of driving tumour initiation, progression, and therapy resistance. We further consider the implications of the pervasive plasticity of the intestinal epithelium for the trajectory of colorectal cancer, the emergence of distinct molecular subtypes, the propensity to metastasize, and the development of effective therapeutic strategies.
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Affiliation(s)
- Nathalie Sphyris
- Cancer Research UK Beatson Institute, Garscube Estate, Switchback Road, Glasgow G61 1BD, UK; (N.S.); (M.C.H.)
| | - Michael C. Hodder
- Cancer Research UK Beatson Institute, Garscube Estate, Switchback Road, Glasgow G61 1BD, UK; (N.S.); (M.C.H.)
- Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Switchback Road, Glasgow G61 1QH, UK
| | - Owen J. Sansom
- Cancer Research UK Beatson Institute, Garscube Estate, Switchback Road, Glasgow G61 1BD, UK; (N.S.); (M.C.H.)
- Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Switchback Road, Glasgow G61 1QH, UK
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43
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Deng Y, McDonald OG, Means AL, Peek RM, Washington MK, Acra SA, Polk DB, Yan F. Exposure to p40 in Early Life Prevents Intestinal Inflammation in Adulthood Through Inducing a Long-Lasting Epigenetic Imprint on TGFβ. Cell Mol Gastroenterol Hepatol 2021; 11:1327-1345. [PMID: 33482393 PMCID: PMC8020481 DOI: 10.1016/j.jcmgh.2021.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 01/08/2021] [Accepted: 01/11/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND & AIMS Colonization by gut microbiota in early life confers beneficial effects on immunity throughout the host's lifespan. We sought to elucidate the mechanisms whereby neonatal supplementation with p40, a probiotic functional factor, reprograms intestinal epithelial cells for protection against adult-onset intestinal inflammation. METHODS p40 was used to treat young adult mouse colonic (YAMC) epithelial cells with and without deletion of a methyltransferase, su(var)3-9, enhancer-of-zeste and trithorax domain-containing 1β (Setd1β), and mice in early life or in adulthood. Anti-transforming growth factor β (TGFβ)-neutralizing antibodies were administered to adult mice with and without colitis induced by 2,4,6-trinitrobenzenesulfonic acid or dextran sulfate sodium. We examined Setd1b and Tgfb gene expression, TGFβ production, monomethylation and trimethylation of histone H3 on the lysine 4 residue (H3K4me1/3), H3K4me3 enrichment in Tgfb promoter, differentiation of regulatory T cells (Tregs), and the inflammatory status. RESULTS p40 up-regulated expression of Setd1b in YAMC cells. Accordingly, p40 enhanced H3K4me1/3 in YAMC cells in a Setd1β-dependent manner. p40-regulated Setd1β mediated programming the TGFβ locus into a transcriptionally permissive chromatin state and promoting TGFβ production in YAMC. Furthermore, transient exposure to p40 during the neonatal period and in adulthood resulted in the immediate increase in Tgfb gene expression. However, only neonatal p40 supplementation induced the sustained H3K4me1/3 and Tgfb gene expression that persisted into adulthood. Interfering with TGFβ function by neutralizing antibodies diminished the long-lasting effects of neonatal p40 supplementation on differentiation of Tregs and protection against colitis in adult mice. CONCLUSIONS Exposure to p40 in early life enables an epigenetic imprint on TGFβ, leading to long-lasting production of TGFβ by intestinal epithelial cells to expand Tregs and protect the gut against inflammation.
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Affiliation(s)
- Yilin Deng
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Oliver G McDonald
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Anna L Means
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee; Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Richard M Peek
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - M Kay Washington
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Sari A Acra
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - D Brent Polk
- Department of Pediatrics, Keck School of Medicine of University of Southern California, Los Angeles, California; Department of Biochemistry and Molecular Medicine, Keck School of Medicine of University of Southern California, Los Angeles, California; Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital Los Angeles, Los Angeles, California
| | - Fang Yan
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee.
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44
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Bao J, Yang Y, Xia M, Sun W, Chen L. Wnt signaling: An attractive target for periodontitis treatment. Biomed Pharmacother 2021; 133:110935. [PMID: 33227711 DOI: 10.1016/j.biopha.2020.110935] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 10/20/2020] [Accepted: 10/22/2020] [Indexed: 02/07/2023] Open
Abstract
Periodontitis is the most common chronic inflammatory disease, and a leading cause of tooth loss. Characterized by resorption of alveolar process and destruction of periodontal ligaments, periodontitis can impact not only periodontal tissues but also systemic diseases, such as diabetes, cardiovascular diseases, and respiratory infections. Currently, it is a hotspot to manage destruction and gain regeneration of periodontal tissues. Increasing evidence indicates that the Wnt signaling plays an important role in homeostasis of periodontal tissues, functions of periodontal derived cells, and progression of periodontitis. Its molecule expressions were abnormal in periodontitis. As such, modulators targeting the Wnt signaling may be an adjuvant therapy for periodontitis treatment. This review elucidates the role of Wnt signaling and its molecules, with a view to develop a potential application of drugs targeting the Wnt signaling for periodontitis treatment.
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45
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Harmston N, Lim JYS, Arqués O, Palmer HG, Petretto E, Virshup DM, Madan B. Widespread Repression of Gene Expression in Cancer by a Wnt/β-Catenin/MAPK Pathway. Cancer Res 2020; 81:464-475. [PMID: 33203702 DOI: 10.1158/0008-5472.can-20-2129] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/06/2020] [Accepted: 11/12/2020] [Indexed: 11/16/2022]
Abstract
Aberrant Wnt signaling drives a number of cancers through regulation of diverse downstream pathways. Wnt/β-catenin signaling achieves this in part by increasing the expression of proto-oncogenes such as MYC and cyclins. However, global assessment of the Wnt-regulated transcriptome in vivo in genetically distinct cancers demonstrates that Wnt signaling suppresses the expression of as many genes as it activates. In this study, we examined the set of genes that are upregulated upon inhibition of Wnt signaling in Wnt-addicted pancreatic and colorectal cancer models. Decreasing Wnt signaling led to a marked increase in gene expression by activating ERK and JNK; these changes in gene expression could be mitigated in part by concurrent inhibition of MEK. These findings demonstrate that increased Wnt signaling in cancer represses MAPK activity, preventing RAS-mediated senescence while allowing cancer cells to proliferate. These results shift the paradigm from Wnt/β-catenin primarily as an activator of transcription to a more nuanced view where Wnt/β-catenin signaling drives both widespread gene repression and activation. SIGNIFICANCE: These findings show that Wnt/β-catenin signaling causes widespread gene repression via inhibition of MAPK signaling, thus fine tuning the RAS-MAPK pathway to optimize proliferation in cancer.
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Affiliation(s)
- Nathan Harmston
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore.,Science Division, Yale-NUS College, Singapore
| | - Jun Yi Stanley Lim
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore
| | - Oriol Arqués
- Stem Cells and Cancer Laboratory, Vall d'Hebron Institute of Oncology (VHIO), CIBERONC, Barcelona, Spain
| | - Héctor G Palmer
- Stem Cells and Cancer Laboratory, Vall d'Hebron Institute of Oncology (VHIO), CIBERONC, Barcelona, Spain
| | - Enrico Petretto
- Center for Computational Biology and Program in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore
| | - David M Virshup
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore. .,Department of Pediatrics, Duke University School of Medicine, Durham, North Carolina
| | - Babita Madan
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore.
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46
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Matozaki T, Kotani T, Murata Y, Saito Y. Roles of Src family kinase, Ras, and mTOR signaling in intestinal epithelial homeostasis and tumorigenesis. Cancer Sci 2020; 112:16-21. [PMID: 33073467 PMCID: PMC7780047 DOI: 10.1111/cas.14702] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 10/12/2020] [Accepted: 10/14/2020] [Indexed: 12/15/2022] Open
Abstract
The turnover of intestinal epithelial cells (IECs) is relatively rapid (3-5 days in mouse and human), and this short existence and other aspects of the homeostasis of IECs are tightly regulated by various signaling pathways including Wnt-β-catenin signaling. Dysregulation of IEC homeostasis likely contributes to the development of intestinal inflammation and intestinal cancer. The roles of receptor protein tyrosine kinases and their downstream signaling molecules such as Src family kinases, Ras, and mTOR in homeostatic regulation of IEC turnover have recently been evaluated. These signaling pathways have been found to promote not only the proliferation of IECs but also the differentiation of progenitor cells into secretory cell types such as goblet cells. Of note, signaling by Src family kinases, Ras, and mTOR has been shown to oppose the Wnt-β-catenin signaling pathway and thereby to limit the number of Lgr5+ intestinal stem cells or of Paneth cells. Such cross-talk of signaling pathways is important not only for proper regulation of IEC homeostasis but for the development of intestinal tumors and potentially for anticancer therapy.
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Affiliation(s)
- Takashi Matozaki
- Division of Molecular and Cellular Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takenori Kotani
- Division of Molecular and Cellular Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoji Murata
- Division of Molecular and Cellular Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yasuyuki Saito
- Division of Molecular and Cellular Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
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47
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Kleeman SO, Leedham SJ. Not All Wnt Activation Is Equal: Ligand-Dependent versus Ligand-Independent Wnt Activation in Colorectal Cancer. Cancers (Basel) 2020; 12:E3355. [PMID: 33202731 PMCID: PMC7697568 DOI: 10.3390/cancers12113355] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/11/2020] [Accepted: 11/12/2020] [Indexed: 02/08/2023] Open
Abstract
Wnt signaling is ubiquitously activated in colorectal tumors and driver mutations are identified in genes such as APC, CTNNB1, RNF43 and R-spondin (RSPO2/3). Adenomatous polyposis coli (APC) and CTNNB1 mutations lead to downstream constitutive activation (ligand-independent), while RNF43 and RSPO mutations require exogenous Wnt ligand to activate signaling (ligand-dependent). Here, we present evidence that these mutations are not equivalent and that ligand-dependent and ligand-independent tumors differ in terms of underlying Wnt biology, molecular pathogenesis, morphology and prognosis. These non-overlapping characteristics can be harnessed to develop biomarkers and targeted treatments for ligand-dependent tumors, including porcupine inhibitors, anti-RSPO3 antibodies and asparaginase. There is emerging evidence that these therapies may synergize with immunotherapy in ligand-dependent tumors. In summary, we propose that ligand-dependent tumors are an underappreciated separate disease entity in colorectal cancer.
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Affiliation(s)
- Sam O. Kleeman
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA;
- Intestinal Stem Cell Biology Lab, Wellcome Trust Centre Human Genetics, University of Oxford, Oxford OX3 7BN, UK
| | - Simon J. Leedham
- Intestinal Stem Cell Biology Lab, Wellcome Trust Centre Human Genetics, University of Oxford, Oxford OX3 7BN, UK
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48
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Wei G, Gao N, Chen J, Fan L, Zeng Z, Gao G, Li L, Fang G, Hu K, Pang X, Fan HY, Clevers H, Liu M, Zhang X, Li D. Erk and MAPK signaling is essential for intestinal development through Wnt pathway modulation. Development 2020; 147:dev.185678. [PMID: 32747435 DOI: 10.1242/dev.185678] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 07/23/2020] [Indexed: 12/28/2022]
Abstract
Homeostasis of intestinal stem cells (ISCs) is maintained by the orchestration of niche factors and intrinsic signaling networks. Here, we have found that deletion of Erk1 and Erk2 (Erk1/2) in intestinal epithelial cells at embryonic stages resulted in an unexpected increase in cell proliferation and migration, expansion of ISCs, and formation of polyp-like structures, leading to postnatal death. Deficiency of epithelial Erk1/2 results in defects in secretory cell differentiation as well as impaired mesenchymal cell proliferation and maturation. Deletion of Erk1/2 strongly activated Wnt signaling through both cell-autonomous and non-autonomous mechanisms. In epithelial cells, Erk1/2 depletion resulted in loss of feedback regulation, leading to Ras/Raf cascade activation that transactivated Akt activity to stimulate the mTor and Wnt/β-catenin pathways. Moreover, Erk1/2 deficiency reduced the levels of Indian hedgehog and the expression of downstream pathway components, including mesenchymal Bmp4 - a Wnt suppressor in intestines. Inhibition of mTor signaling by rapamycin partially rescued Erk1/2 depletion-induced intestinal defects and significantly prolonged the lifespan of mutant mice. These data demonstrate that Erk/Mapk signaling functions as a key modulator of Wnt signaling through coordination of epithelial-mesenchymal interactions during intestinal development.
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Affiliation(s)
- Gaigai Wei
- Shanghai Key Laboratory of Regulatory Biology, Joint Research Center for Translational Medicine, ECNU-Fengxian Hospital, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Na Gao
- Shanghai Key Laboratory of Regulatory Biology, Joint Research Center for Translational Medicine, ECNU-Fengxian Hospital, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Jiwei Chen
- Shanghai Key Laboratory of Regulatory Biology, Joint Research Center for Translational Medicine, ECNU-Fengxian Hospital, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Lingling Fan
- Shanghai Key Laboratory of Regulatory Biology, Joint Research Center for Translational Medicine, ECNU-Fengxian Hospital, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Zhiyang Zeng
- Shanghai Key Laboratory of Regulatory Biology, Joint Research Center for Translational Medicine, ECNU-Fengxian Hospital, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Ganglong Gao
- Fengxian Hospital affiliated to Southern Medical University, Shanghai 201499, China
| | - Liang Li
- Shanghai Key Laboratory of Regulatory Biology, Joint Research Center for Translational Medicine, ECNU-Fengxian Hospital, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Guojiu Fang
- Fengxian Hospital affiliated to Southern Medical University, Shanghai 201499, China
| | - Kewen Hu
- Shanghai Key Laboratory of Regulatory Biology, Joint Research Center for Translational Medicine, ECNU-Fengxian Hospital, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Xiufeng Pang
- Shanghai Key Laboratory of Regulatory Biology, Joint Research Center for Translational Medicine, ECNU-Fengxian Hospital, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Heng-Yu Fan
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Hans Clevers
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW), Uppsalalaan 8, Utrecht 3584 CT, The Netherlands
| | - Mingyao Liu
- Shanghai Key Laboratory of Regulatory Biology, Joint Research Center for Translational Medicine, ECNU-Fengxian Hospital, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Xueli Zhang
- Shanghai Key Laboratory of Regulatory Biology, Joint Research Center for Translational Medicine, ECNU-Fengxian Hospital, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China .,Fengxian Hospital affiliated to Southern Medical University, Shanghai 201499, China
| | - Dali Li
- Shanghai Key Laboratory of Regulatory Biology, Joint Research Center for Translational Medicine, ECNU-Fengxian Hospital, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
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Cui H, Tang D, Garside GB, Zeng T, Wang Y, Tao Z, Zhang L, Tao S. Wnt Signaling Mediates the Aging-Induced Differentiation Impairment of Intestinal Stem Cells. Stem Cell Rev Rep 2019; 15:448-55. [PMID: 30790135 DOI: 10.1007/s12015-019-09880-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Stem cell aging underlies aging-associated disorders, such as steeply increased incidences of tumors and impaired regeneration capacity upon stress. However, whether and how the intestinal stem cells age remains largely unknown. Here we show that intestinal stem cells derived from 24-month-old mice hardly form typical organoids with crypt-villus structures, but rather mainly form big, rounded cysts devoid of differentiated cell types, which mimics the culturing of heterozygous APC-deficient cells from the APCmin mouse line. Further analysis showed that cultured crypts derived from aged mice exhibited reduced expression levels of differentiation genes and higher expression of Wnt target genes. Lowering the concentration of R-spondin-1 in the culture system significantly reduced formation of rounded cysts, accompanied by an increased formation of organoids from crypts derived from old mice. We are the first to uncover that intestinal stem cells derived from old mice harbor significant deficiency in differentiation that can be partially rescued through a reduction in R-spondin-1 exposure. This could be highly relevant to intestinal tumor development and the reduced regeneration potential observed in the aged population. Our study provides the first experimental evidence that an over-responsiveness to Wnt/beta-catenin signaling of aged intestinal stem cells mediates the aging-induced deficiency in differentiation, and could serve as a potential target to ameliorate aging-associated intestinal pathologies.
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Jardé T, Chan WH, Rossello FJ, Kaur Kahlon T, Theocharous M, Kurian Arackal T, Flores T, Giraud M, Richards E, Chan E, Kerr G, Engel RM, Prasko M, Donoghue JF, Abe SI, Phesse TJ, Nefzger CM, McMurrick PJ, Powell DR, Daly RJ, Polo JM, Abud HE. Mesenchymal Niche-Derived Neuregulin-1 Drives Intestinal Stem Cell Proliferation and Regeneration of Damaged Epithelium. Cell Stem Cell 2020; 27:646-662.e7. [PMID: 32693086 DOI: 10.1016/j.stem.2020.06.021] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/13/2020] [Accepted: 06/23/2020] [Indexed: 12/11/2022]
Abstract
Epidermal growth factor (EGF) maintains intestinal stem cell (ISC) proliferation and is a key component of organoid growth media yet is dispensable for intestinal homeostasis, suggesting roles for multiple EGF family ligands in ISC function. Here, we identified neuregulin 1 (NRG1) as a key EGF family ligand that drives tissue repair following injury. NRG1, but not EGF, is upregulated upon damage and is expressed in mesenchymal stromal cells, macrophages, and Paneth cells. NRG1 deletion reduces proliferation in intestinal crypts and compromises regeneration capacity. NRG1 robustly stimulates proliferation in crypts and induces budding in organoids, in part through elevated and sustained activation of mitogen-activated protein kinase (MAPK) and AKT. Consistently, NRG1 treatment induces a proliferative gene signature and promotes organoid formation from progenitor cells and enhances regeneration following injury. These data suggest mesenchymal-derived NRG1 is a potent mediator of tissue regeneration and may inform the development of therapies for enhancing intestinal repair after injury.
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Affiliation(s)
- Thierry Jardé
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia; Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia.
| | - Wing Hei Chan
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia
| | - Fernando J Rossello
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, VIC 3800, Australia; University of Melbourne Centre for Cancer Research, University of Melbourne, Melbourne, VIC 3000, Australia
| | - Tanvir Kaur Kahlon
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia
| | - Mandy Theocharous
- Department of Biochemistry and Molecular Biology, Monash University, Melbourne, VIC 3800, Australia; Cancer Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia
| | - Teni Kurian Arackal
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia
| | - Tracey Flores
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia
| | - Mégane Giraud
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia
| | - Elizabeth Richards
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia
| | - Eva Chan
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia
| | - Genevieve Kerr
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia
| | - Rebekah M Engel
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia; Cabrini Monash University Department of Surgery, Cabrini Hospital, Malvern, VIC 3144, Australia
| | - Mirsada Prasko
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia
| | - Jacqueline F Donoghue
- Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia; Department of Obstetrics and Gynaecology, Royal Women's Hospital, Melbourne University, Melbourne, VIC 3052, Australia
| | - Shin-Ichi Abe
- Center for Education, Kumamoto Health Science University, Kumamoto 861-5598, Japan
| | - Toby J Phesse
- European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Cardiff CF24 4HQ, UK; Doherty Institute of Infection and Immunity, University of Melbourne, Melbourne, VIC 3000, Australia
| | - Christian M Nefzger
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, VIC 3800, Australia; Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Paul J McMurrick
- Cabrini Monash University Department of Surgery, Cabrini Hospital, Malvern, VIC 3144, Australia
| | - David R Powell
- Monash Bioinformatics Platform, Monash University, Clayton, VIC 3800, Australia
| | - Roger J Daly
- Department of Biochemistry and Molecular Biology, Monash University, Melbourne, VIC 3800, Australia; Cancer Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia
| | - Jose M Polo
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, VIC 3800, Australia
| | - Helen E Abud
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC 3800, Australia.
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