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Zhu X, Baranowski E, Hao Z, Li X, Zhao G, Dong Y, Chen Y, Hu C, Chen H, Citti C, Wang A, Guo A. An atypical GdpP enzyme linking cyclic nucleotide metabolism to osmotic tolerance and gene regulation in Mycoplasma bovis. Front Microbiol 2023; 14:1250368. [PMID: 38098652 PMCID: PMC10720645 DOI: 10.3389/fmicb.2023.1250368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 11/10/2023] [Indexed: 12/17/2023] Open
Abstract
Nucleotide second messengers play an important role in bacterial adaptation to environmental changes. Recent evidence suggests that some of these regulatory molecular pathways were conserved upon the degenerative evolution of the wall-less mycoplasmas. We have recently reported the occurrence of a phosphodiesterase (PDE) in the ruminant pathogen Mycoplasma bovis, which was involved in c-di-AMP metabolism. In the present study, we demonstrate that the genome of this mycoplasma species encodes a PDE of the GdpP family with atypical DHH domains. Characterization of M. bovis GdpP (MbovGdpP) revealed a multifunctional PDE with unusual nanoRNase and single-stranded DNase activities. The alarmone ppGpp was found unable to inhibit c-di-NMP degradation by MbovGdpP but efficiently blocked its nanoRNase activity. Remarkably, MbovGdpP was found critical for the osmotic tolerance of M. bovis under K+ and Na+ conditions. Transcriptomic analyses further revealed the biological importance of MbovGdpP in tRNA biosynthesis, pyruvate metabolism, and several steps in genetic information processing. This study is an important step in understanding the role of PDE and nucleotide second messengers in the biology of a minimal bacterial pathogen.
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Affiliation(s)
- Xifang Zhu
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
- Longhu Laboratory of Advanced Immunology, Zhengzhou, China
- The State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | | | - Zhiyu Hao
- The State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xixi Li
- The State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Gang Zhao
- The State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yaqi Dong
- The State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yingyu Chen
- The State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Changmin Hu
- The State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Huanchun Chen
- The State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture of the People’s Republic of China, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, International Research Center for Animal Disease, Ministry of Science and Technology of the People’s Republic of China, Wuhan, China
| | | | - Aiping Wang
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
- Longhu Laboratory of Advanced Immunology, Zhengzhou, China
| | - Aizhen Guo
- The State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture of the People’s Republic of China, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, International Research Center for Animal Disease, Ministry of Science and Technology of the People’s Republic of China, Wuhan, China
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Wang S, Ding X, Li Z, Rao F, Xu H, Lu J, Ma X, Zhang M, Xie Z. Comprehensive analyses identify potential biomarkers for encephalitis in HIV infection. Sci Rep 2023; 13:18418. [PMID: 37891420 PMCID: PMC10611703 DOI: 10.1038/s41598-023-45922-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 10/25/2023] [Indexed: 10/29/2023] Open
Abstract
Human immunodeficiency virus encephalitis (HIVE) is a severe neurological complication after HIV infection. Evidence shows that genetic factors play an important role in HIVE. The aim of the present study was to identify new potential therapeutic targets for HIVE. Differentially expressed gene (DEG), functional annotation and pathway, and protein-protein interaction analyses were performed to identify the hub genes associated with HIVE. Gene co-expression analysis was carried out to confirm the association between the hub genes and HIVE. Finally, the role of the hub genes in HIVE therapy was evaluated by conducting drug-gene interaction analysis. A total of 20 overlapping DEGs closely related to HIVE were identified. Functional annotation and pathway enrichment analysis indicated that the markedly enriched DEG terms included ion transport, type II interferon signaling, and synaptic signaling. Moreover, protein-protein interaction analysis revealed that 10 key HIVE-related genes were hub genes, including SCN8A, CDK5R2, GRM5, SCN2B, IFI44L, STAT1, SLC17A7, ISG15, FGF12, and FGF13. Furthermore, six hub genes were co-expressed with HIVE-associated host genes in human brain tissue. Finally, three hub genes (STAT1, ISG15, and SCN2B) interacted with several inflammation-associated drugs. These findings suggested that SCN8A, CDK5R2, GRM5, SCN2B, IFI44L, STAT1, SLC17A7, ISG15, FGF12, and FGF13 may be new targets for diagnosis and therapy of HIVE.
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Affiliation(s)
- Shitao Wang
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang, 236000, China.
| | - Xiangqian Ding
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, 250012, China
| | - Zongyou Li
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang, 236000, China
| | - Feng Rao
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang, 236000, China
| | - Hui Xu
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang, 236000, China
| | - Jinghong Lu
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang, 236000, China
| | - Xuelu Ma
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang, 236000, China
| | - Mengen Zhang
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang, 236000, China
| | - Zhenrong Xie
- The Medical Biobank, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
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Liu S, Guo T, Hu J, Huang W, She P, Wu Y. HIV-1-related factors interact with p53 to influence cellular processes. AIDS Res Ther 2023; 20:66. [PMID: 37691100 PMCID: PMC10493029 DOI: 10.1186/s12981-023-00563-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 08/29/2023] [Indexed: 09/12/2023] Open
Abstract
Human immunodeficiency virus type 1 (HIV-1) is the primary epidemic strain in China. Its genome contains two regulatory genes (tat and rev), three structural genes (gag, pol, and env), and four accessory genes (nef, vpr, vpu, and vif). Long terminal repeats (LTRs) in thegenome regulate integration, duplication, and expression of viral gene. The permissibility of HIV-1 infection hinges on the host cell cycle status. HIV-1 replicates by exploiting various cellular processes via upregulation or downregulation of specific cellular proteins that also control viral pathogenesis. For example, HIV-1 regulates the life cycle of p53, which in turn contributes significantly to HIV-1 pathogenesis. In this article, we review the interaction between HIV-1-associated factors and p53, providing information on their regulatory and molecular mechanisms, hinting possible directions for further research.
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Affiliation(s)
- Shanling Liu
- Department of Laboratory Medicine, The First Hospital of Changsha, 311 Yingpan Road, Changsha, 410005, Hunan, China
| | - Ting Guo
- Department of Laboratory Medicine, The First Hospital of Changsha, 311 Yingpan Road, Changsha, 410005, Hunan, China
| | - Jinwei Hu
- Department of Laboratory Medicine, The First Hospital of Changsha, 311 Yingpan Road, Changsha, 410005, Hunan, China
| | - Weiliang Huang
- Department of Laboratory Medicine, The First Hospital of Changsha, 311 Yingpan Road, Changsha, 410005, Hunan, China
| | - Pengfei She
- Department of Laboratory Medicine, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Yong Wu
- Department of Laboratory Medicine, The First Hospital of Changsha, 311 Yingpan Road, Changsha, 410005, Hunan, China.
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Salgüero S, Brochado-Kith Ó, Verdices AV, Berenguer J, González-García J, Martínez I, Díez C, Hontañón V, Pérez-Latorre L, Fernández-Rodríguez A, Jiménez-Sousa MÁ, Resino S. PBMCs gene expression signature of advanced cirrhosis with high risk for clinically significant portal hypertension in HIV/HCV coinfected patients: A cross-control study. Biomed Pharmacother 2023; 159:114220. [PMID: 36628818 DOI: 10.1016/j.biopha.2023.114220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Patients with advanced cirrhosis are at high risk of developing clinically significant portal hypertension (CSPH). We analyzed the gene expression profile of peripheral blood mononuclear cells (PBMCs) from HIV/HCV coinfected patients to identify a gene expression signature of advanced cirrhosis with high risk for CSPH. METHODS We conducted a cross-sectional study on 68 patients. Liver stiffness measurement (LSM) was used to stratify patients into < 12.5 kPa (no cirrhosis, n = 19), 12.5 - 24.9 kPa (cirrhosis, n = 20), and ≥ 25 kPa (advanced cirrhosis with high risk for CSPH, n = 29). Besides, we further evaluated LSM < 25 kPa (n = 39) vs. ≥ 25 kPa (n = 29). Total RNA was extracted from PBMCs, and poly(A) RNA sequencing was performed. Two significant differentially expressed (SDE) transcripts were validated by quantitative PCR in a different cohort (n = 46). RESULTS We found 60 SDE transcripts between patients with LSM < 12.5 kPa and ≥ 25 kPa. Partial least squares discriminant analysis showed that those 60 SDE transcripts collectively discriminated LSM ≥ 25 kPa, with an area under the receiver operating characteristic curve (AUROC) of 0.84. Eight genes had an AUROC ≥ 0.75 for LSM ≥ 25 kPa: five were positively associated with LSM values (SCAMP1, ABHD17B, GPR146, GTF2A1, and TMEM64), while three were inversely associated (ZFHX2-AS1, MDK, and STAG3L2). We validated the two SDE transcripts with the highest discrimination capacity in a different cohort, finding significant differences between < 25 kPa and ≥ 25 kPa (MDK (p = 0.006) and STAG3L2 (p = 0.021)). CONCLUSIONS A gene expression signature of 60 transcripts was associated with advanced cirrhosis with high risk for CSPH in HIV/HCV coinfected patients.
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Affiliation(s)
- Sergio Salgüero
- Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain; Unidad de Análisis Clínicos, Hospital El Escorial, Spain.
| | - Óscar Brochado-Kith
- Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain.
| | - Ana Virseda Verdices
- Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain.
| | - Juan Berenguer
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain; Unidad de Enfermedades Infecciosas/VIH; Hospital General Universitario "Gregorio Marañón", Madrid, Spain; Instituto de Investigación Sanitaria del Gregorio Marañón, Madrid, Spain.
| | - Juan González-García
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain; Unidad de VIH; Servicio de Medicina Interna, Hospital Universitario "La Paz", Madrid, Spain; Instituto de Investigación Sanitaria La Paz (IdiPAZ), Madrid, Spain.
| | - Isidoro Martínez
- Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain.
| | - Cristina Díez
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain; Unidad de Enfermedades Infecciosas/VIH; Hospital General Universitario "Gregorio Marañón", Madrid, Spain; Instituto de Investigación Sanitaria del Gregorio Marañón, Madrid, Spain.
| | - Víctor Hontañón
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain; Unidad de VIH; Servicio de Medicina Interna, Hospital Universitario "La Paz", Madrid, Spain; Instituto de Investigación Sanitaria La Paz (IdiPAZ), Madrid, Spain.
| | - Leire Pérez-Latorre
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain; Unidad de Enfermedades Infecciosas/VIH; Hospital General Universitario "Gregorio Marañón", Madrid, Spain; Instituto de Investigación Sanitaria del Gregorio Marañón, Madrid, Spain.
| | - Amanda Fernández-Rodríguez
- Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain.
| | - María Ángeles Jiménez-Sousa
- Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain.
| | - Salvador Resino
- Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain.
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Bono V, Tincati C, Van Den Bogaart L, Cannizzo ES, Rovito R, Augello M, De Bona A, D’Arminio Monforte A, Milazzo L, Marchetti G. Gamma-Delta T-Cell Phenotype and Function in DAA-Treated HIV-HCV Co-Infected and HCV-Mono-Infected Subjects. Viruses 2022; 14:v14081594. [PMID: 35893661 PMCID: PMC9329743 DOI: 10.3390/v14081594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/12/2022] [Accepted: 07/20/2022] [Indexed: 12/10/2022] Open
Abstract
HIV-HCV co-infected subjects are at risk of liver fibrosis which may be linked to immune imbalances. Direct-acting antivirals (DAAs) represent the mainstay of HCV treatment in co-infected individuals, yet their effects on immune cell populations playing a role in fibrogenesis is unknown. We assessed γδ T-cell phenotype and function, Treg and Th17 frequencies, as well as γ-globulins and B-cell activation in 47 HIV-HCV co-infected and 35 HCV mono-infected individuals prior to and following DAA treatment (SVR12). Γδ T-cell activation decreased in both groups yet persisted at higher levels in the HIV-HCV co-infected subjects. No differences were registered in terms of γδT-cell function. Of note, the Vδ2/Th17 ratio, inversely linked to liver damage, increased significantly in the two groups upon treatment, yet a negative correlation between the Vδ2/Th17 ratio and liver function enzymes was found in the co-infected subjects alone. B-cell activation and γ-globulin levels decreased in both settings, yet B-cell activation remained higher in the HIV-HCV co-infected individuals. In HIV-HCV co-infected and HCV mono-infected participants, the effect of DAA was limited to γδ T- and B-cell activation as well as γ-globulin concentrations and the Vδ2/Th17 ratio, with no changes in γδ T-cell function and Treg frequencies. Importantly, γδ T- and B-cell activation remained at higher levels in the co-infected individuals than in those with HCV mono-infection alone. The persistence of such alterations within these cell subsets may be associated with the risk of hepatic and extrahepatic complications.
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Affiliation(s)
- Valeria Bono
- Clinic of Infectious Diseases and Tropical Medicine, San Paolo Hospital, ASST Santi Paolo e Carlo, Department of Health Sciences, University of Milan, Via A. di Rudinì, 8, 20142 Milan, Italy; (V.B.); (E.S.C.); (R.R.); (M.A.); (A.D.B.); (A.D.M.); (G.M.)
| | - Camilla Tincati
- Clinic of Infectious Diseases and Tropical Medicine, San Paolo Hospital, ASST Santi Paolo e Carlo, Department of Health Sciences, University of Milan, Via A. di Rudinì, 8, 20142 Milan, Italy; (V.B.); (E.S.C.); (R.R.); (M.A.); (A.D.B.); (A.D.M.); (G.M.)
- Correspondence: ; Tel./Fax: +39-02-8184-3064
| | - Lorena Van Den Bogaart
- III Division of Infectious Diseases, Luigi Sacco Hospital, ASST Fatebenefratelli Sacco, Department of Clinical and Biomedical Sciences, University of Milan, Via G. B. Grassi 74, 20157 Milan, Italy; (L.V.D.B.); (L.M.)
| | - Elvira Stefania Cannizzo
- Clinic of Infectious Diseases and Tropical Medicine, San Paolo Hospital, ASST Santi Paolo e Carlo, Department of Health Sciences, University of Milan, Via A. di Rudinì, 8, 20142 Milan, Italy; (V.B.); (E.S.C.); (R.R.); (M.A.); (A.D.B.); (A.D.M.); (G.M.)
| | - Roberta Rovito
- Clinic of Infectious Diseases and Tropical Medicine, San Paolo Hospital, ASST Santi Paolo e Carlo, Department of Health Sciences, University of Milan, Via A. di Rudinì, 8, 20142 Milan, Italy; (V.B.); (E.S.C.); (R.R.); (M.A.); (A.D.B.); (A.D.M.); (G.M.)
| | - Matteo Augello
- Clinic of Infectious Diseases and Tropical Medicine, San Paolo Hospital, ASST Santi Paolo e Carlo, Department of Health Sciences, University of Milan, Via A. di Rudinì, 8, 20142 Milan, Italy; (V.B.); (E.S.C.); (R.R.); (M.A.); (A.D.B.); (A.D.M.); (G.M.)
| | - Anna De Bona
- Clinic of Infectious Diseases and Tropical Medicine, San Paolo Hospital, ASST Santi Paolo e Carlo, Department of Health Sciences, University of Milan, Via A. di Rudinì, 8, 20142 Milan, Italy; (V.B.); (E.S.C.); (R.R.); (M.A.); (A.D.B.); (A.D.M.); (G.M.)
| | - Antonella D’Arminio Monforte
- Clinic of Infectious Diseases and Tropical Medicine, San Paolo Hospital, ASST Santi Paolo e Carlo, Department of Health Sciences, University of Milan, Via A. di Rudinì, 8, 20142 Milan, Italy; (V.B.); (E.S.C.); (R.R.); (M.A.); (A.D.B.); (A.D.M.); (G.M.)
| | - Laura Milazzo
- III Division of Infectious Diseases, Luigi Sacco Hospital, ASST Fatebenefratelli Sacco, Department of Clinical and Biomedical Sciences, University of Milan, Via G. B. Grassi 74, 20157 Milan, Italy; (L.V.D.B.); (L.M.)
| | - Giulia Marchetti
- Clinic of Infectious Diseases and Tropical Medicine, San Paolo Hospital, ASST Santi Paolo e Carlo, Department of Health Sciences, University of Milan, Via A. di Rudinì, 8, 20142 Milan, Italy; (V.B.); (E.S.C.); (R.R.); (M.A.); (A.D.B.); (A.D.M.); (G.M.)
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Trussoni CE, O'Hara SP, LaRusso NF. Cellular senescence in the cholangiopathies: a driver of immunopathology and a novel therapeutic target. Semin Immunopathol 2022; 44:527-544. [PMID: 35178659 DOI: 10.1007/s00281-022-00909-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/12/2022] [Indexed: 12/12/2022]
Abstract
The cholangiopathies are a group of liver diseases that affect cholangiocytes, the epithelial cells that line the bile ducts. Biliary atresia (BA), primary biliary cholangitis (PBC), and primary sclerosing cholangitis (PSC) are three cholangiopathies with significant immune-mediated pathogenesis where chronic inflammation and fibrosis lead to obliteration of bile ducts and eventual liver cirrhosis. Cellular senescence is a state of cell cycle arrest in which cells become resistant to apoptosis and profusely secrete a bioactive secretome. Recent evidence indicates that cholangiocyte senescence contributes to the pathogenesis of BA, PBC, and PSC. This review explores the role of cholangiocyte senescence in BA, PBC, and PSC, ascertains how cholangiocyte senescence may promote a senescence-associated immunopathology in these cholangiopathies, and provides the rationale for therapeutically targeting senescence as a treatment option for BA, PBC, and PSC.
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Affiliation(s)
- Christy E Trussoni
- Division of Gastroenterology and Hepatology and the Mayo Clinic Center for Cell Signaling in Gastroenterology, Mayo Clinic, Rochester, MN, USA
| | - Steven P O'Hara
- Division of Gastroenterology and Hepatology and the Mayo Clinic Center for Cell Signaling in Gastroenterology, Mayo Clinic, Rochester, MN, USA
| | - Nicholas F LaRusso
- Division of Gastroenterology and Hepatology and the Mayo Clinic Center for Cell Signaling in Gastroenterology, Mayo Clinic, Rochester, MN, USA. .,Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, 200 First Street, SW, Rochester, MN, 55905, USA.
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