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Sharan K, Brandt C, Yusuf MA, Singh P, Halder N, Edwards ME, Mangu SVVSR, Das A, Mishra A, Kumar SS, Sharma A, Gupta A, Liu XS, Guo EX, Monani UR, Ponnalagu D, Ivanov II, Lal G, Clare S, Dougan G, Yadav VK. Rapid and relaying deleterious effects of a gastrointestinal pathogen, Citrobacter rodentium, on bone, an extra-intestinal organ. iScience 2025; 28:111802. [PMID: 39967874 PMCID: PMC11834125 DOI: 10.1016/j.isci.2025.111802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 08/04/2024] [Accepted: 01/10/2025] [Indexed: 02/20/2025] Open
Abstract
Enteropathogenic infections cause pathophysiological changes in the host but their effects beyond the gastrointestinal tract are undefined. Here, using Citrobacter rodentium infection in mouse, which mimics human diarrheal enteropathogenic Escherichia coli, we show that gastrointestinal infection negatively affects bone remodeling, leading to compromised bone architecture. Transmission of infection through fecal-oral route from Citrobacter rodentium-infected to non-infected mice caused bone loss in non-infected cage mates. Mice with B cell deficiency (Igh6-/- mice) failed to clear C. rodentium infection and exhibited more severe and long-term bone loss compared to WT mice. Unbiased cytokine profiling showed an increase in circulating tumor necrosis factor α (TNFα) levels following Citrobacter rodentium infection, and immunoneutralization of TNFα prevented infection-induced bone loss completely in WT and immunocompromised mice. These findings reveal rapid, relaying, and modifiable effects of enteropathogenic infections on an extraintestinal organ-bone, and provide insights into the mechanism(s) through which these infections affect extraintestinal organ homeostasis.
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Affiliation(s)
- Kunal Sharan
- Mouse Genetics Project, Wellcome Sanger Institute, Hinxton, Saffron Walden, UK
- Department of Molecular Nutrition, CSIR-CFTRI, Mysore, Karnataka, India
| | - Cordelia Brandt
- Host-Pathogen Interaction Group, Wellcome Sanger Institute, Hinxton, Saffron Walden, UK
| | - Mohd Aslam Yusuf
- Department of Bioengineering, Integral University, Lucknow, Uttar Pradesh, India
| | - Parminder Singh
- National Institute of Immunology, New Delhi, New Delhi, India
| | - Namrita Halder
- National Centre for Cell Science, Pune, Maharastra, India
| | - Madeline E. Edwards
- Department of Microbiology and Immunology, Columbia University, New York, NY, USA
| | - SVVS Ravi Mangu
- Department of Molecular Nutrition, CSIR-CFTRI, Mysore, Karnataka, India
| | - Abhilipsa Das
- Department of Molecular Nutrition, CSIR-CFTRI, Mysore, Karnataka, India
| | - Amrita Mishra
- National Centre for Cell Science, Pune, Maharastra, India
| | - Shashi S. Kumar
- Center for Motor Neuron Biology & Disease, Columbia University, New York, NY, USA
- Department of Neurology, Columbia University, New York, NY, USA
| | - Amita Sharma
- Pediatric Kidney Foundation, New Delhi, New Delhi, India
| | - Alka Gupta
- Reproductive Biology Laboratory, National Institute of Immunology, New Delhi, New Delhi, India
| | - Xiaowei S. Liu
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Edward X. Guo
- Bone Biomechanics Laboratory, Columbia University, New York, NY, USA
| | - Umrao R. Monani
- Center for Motor Neuron Biology & Disease, Columbia University, New York, NY, USA
- Department of Neurology, Columbia University, New York, NY, USA
- Department of Pathology & Cell Biology, Columbia University, New York, NY, USA
| | | | - Ivaylo I. Ivanov
- Department of Microbiology and Immunology, Columbia University, New York, NY, USA
| | - Girdhari Lal
- National Centre for Cell Science, Pune, Maharastra, India
| | - Simon Clare
- Host-Pathogen Interaction Group, Wellcome Sanger Institute, Hinxton, Saffron Walden, UK
| | - Gordon Dougan
- Host-Pathogen Interaction Group, Wellcome Sanger Institute, Hinxton, Saffron Walden, UK
- Department of Medicine, University of Cambridge, Cambridge, Cambridgeshire, UK
- Centre for Translational Stem Cell Biology, Hong Kong, China
| | - Vijay K. Yadav
- Mouse Genetics Project, Wellcome Sanger Institute, Hinxton, Saffron Walden, UK
- National Institute of Immunology, New Delhi, New Delhi, India
- Department of Genetics and Development, Columbia University, New York, NY, USA
- Healthy Longevity Program, Department of Pathology, Immunology and Laboratory Medicine, Rutgers University, Newark, NJ, USA
- Center for Cell Signaling, Rutgers University, Newark, NJ, USA
- Center for Immunity and Inflammation, Rutgers University, Newark, NJ, USA
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Singh A, Wall C, Levine A, Midha V, Mahajan R, Sood A. Nutritional screening and assessment in inflammatory bowel disease. Indian J Gastroenterol 2022; 41:5-22. [PMID: 35031977 DOI: 10.1007/s12664-021-01223-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 09/24/2021] [Indexed: 02/04/2023]
Abstract
Inflammatory bowel disease (IBD) is associated with increased risk of malnutrition and sarcopenia. Both malnutrition and sarcopenia negatively impact the clinical course, quality of life, response to therapy, and surgical outcomes in patients with IBD. This review article highlights the importance of nutritional assessment in patients with IBD and also discusses the different nutritional screening and assessment tools, and measures to detect sarcopenia in relation to IBD. Identification of malnutrition and sarcopenia will allow prioritization of the corrective actions, such as nutritional rehabilitation, to improve clinical outcomes. An approach to the evaluation of nutritional status in patients with IBD is also suggested.
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Affiliation(s)
- Arshdeep Singh
- Department of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, 141 001, India
| | - Catherine Wall
- Department of Medicine and Department of Human Nutrition, University of Otago, Christchurch, New Zealand
| | - Arie Levine
- Pediatric Gastroenterology and Nutrition Unit, Pediatric IBD Center, Wolfson Medical Center Holon, Tel Aviv University, Tel Aviv, Israel
| | - Vandana Midha
- Department of Internal Medicine, Dayanand Medical College, Ludhiana, 141 001, India
| | - Ramit Mahajan
- Department of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, 141 001, India
| | - Ajit Sood
- Department of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, 141 001, India.
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