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Di Mattia M, Sallese M, Neri M, Lopetuso LR. Hypoxic Functional Regulation Pathways in the GI Tract: Focus on the HIF-1α and Microbiota's Crosstalk. Inflamm Bowel Dis 2024; 30:1406-1418. [PMID: 38484200 DOI: 10.1093/ibd/izae046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Indexed: 08/02/2024]
Abstract
Hypoxia is an essential gastrointestinal (GI) tract phenomenon that influences both physiologic and pathologic states. Hypoxia-inducible factors (HIFs), the primary drivers of cell adaptation to low-oxygen environments, have been identified as critical regulators of gut homeostasis: directly, through the induction of different proteins linked to intestinal barrier stabilization (ie, adherent proteins, tight junctions, mucins, integrins, intestinal trefoil factor, and adenosine); and indirectly, through the regulation of several immune cell types and the modulation of autophagy and inflammatory processes. Furthermore, hypoxia and HIF-related sensing pathways influence the delicate relationship existing between bacteria and mammalian host cells. In turn, gut commensals establish and maintain the physiologic hypoxia of the GI tract and HIF-α expression. Based on this premise, the goals of this review are to (1) highlight hypoxic molecular pathways in the GI tract, both in physiologic and pathophysiologic settings, such as inflammatory bowel disease; and (2) discuss a potential strategy for ameliorating gut-related disorders, by targeting HIF signaling, which can alleviate inflammatory processes, restore autophagy correct mechanisms, and benefit the host-microbiota equilibrium.
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Affiliation(s)
- Miriam Di Mattia
- Department of Medicine and Ageing Sciences, Gabriele d'Annunzio University of Chieti-Pescara, Chieti, Italy
- Center for Advanced Studies and Technology, Gabriele d'Annunzio University of Chieti-Pescara, Chieti, Italy
| | - Michele Sallese
- Department of Medicine and Ageing Sciences, Gabriele d'Annunzio University of Chieti-Pescara, Chieti, Italy
- Center for Advanced Studies and Technology, Gabriele d'Annunzio University of Chieti-Pescara, Chieti, Italy
| | - Matteo Neri
- Department of Medicine and Ageing Sciences, Gabriele d'Annunzio University of Chieti-Pescara, Chieti, Italy
- Center for Advanced Studies and Technology, Gabriele d'Annunzio University of Chieti-Pescara, Chieti, Italy
| | - Loris Riccardo Lopetuso
- Department of Medicine and Ageing Sciences, Gabriele d'Annunzio University of Chieti-Pescara, Chieti, Italy
- Center for Advanced Studies and Technology, Gabriele d'Annunzio University of Chieti-Pescara, Chieti, Italy
- Medicina Interna e Gastroenterologia, CEMAD Centro Malattie dell'Apparato Digerente, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
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Tran S, Juliani J, Harris TJ, Evangelista M, Ratcliffe J, Ellis SL, Baloyan D, Reehorst CM, Nightingale R, Luk IY, Jenkins LJ, Ghilas S, Yakou MH, Inguanti C, Johnson C, Buchert M, Lee JC, De Cruz P, Duszyc K, Gleeson PA, Kile BT, Mielke LA, Yap AS, Mariadason JM, Fairlie WD, Lee EF. BECLIN1 is essential for intestinal homeostasis involving autophagy-independent mechanisms through its function in endocytic trafficking. Commun Biol 2024; 7:209. [PMID: 38378743 PMCID: PMC10879175 DOI: 10.1038/s42003-024-05890-7] [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: 10/10/2023] [Accepted: 02/06/2024] [Indexed: 02/22/2024] Open
Abstract
Autophagy-related genes have been closely associated with intestinal homeostasis. BECLIN1 is a component of Class III phosphatidylinositol 3-kinase complexes that orchestrate autophagy initiation and endocytic trafficking. Here we show intestinal epithelium-specific BECLIN1 deletion in adult mice leads to rapid fatal enteritis with compromised gut barrier integrity, highlighting its intrinsic critical role in gut maintenance. BECLIN1-deficient intestinal epithelial cells exhibit extensive apoptosis, impaired autophagy, and stressed endoplasmic reticulum and mitochondria. Remaining absorptive enterocytes and secretory cells display morphological abnormalities. Deletion of the autophagy regulator, ATG7, fails to elicit similar effects, suggesting additional novel autophagy-independent functions of BECLIN1 distinct from ATG7. Indeed, organoids derived from BECLIN1 KO mice show E-CADHERIN mislocalisation associated with abnormalities in the endocytic trafficking pathway. This provides a mechanism linking endocytic trafficking mediated by BECLIN1 and loss of intestinal barrier integrity. Our findings establish an indispensable role of BECLIN1 in maintaining mammalian intestinal homeostasis and uncover its involvement in endocytic trafficking in this process. Hence, this study has important implications for our understanding of intestinal pathophysiology.
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Affiliation(s)
- Sharon Tran
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - Juliani Juliani
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
- Department of Biochemistry and Chemistry, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
- La Trobe Institute for Molecular Science, La Trobe University, Bundoora, VIC, Australia
| | - Tiffany J Harris
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - Marco Evangelista
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - Julian Ratcliffe
- Bioimaging Platform, La Trobe University, Bundoora, VIC, Australia
| | - Sarah L Ellis
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - David Baloyan
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - Camilla M Reehorst
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - Rebecca Nightingale
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - Ian Y Luk
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - Laura J Jenkins
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - Sonia Ghilas
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - Marina H Yakou
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - Chantelle Inguanti
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - Chad Johnson
- Bioimaging Platform, La Trobe University, Bundoora, VIC, Australia
| | - Michael Buchert
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - James C Lee
- Genetic Mechanisms of Disease Laboratory, the Francis Crick Institute, London, United Kingdom
- Institute for Liver and Digestive Health, Division of Medicine, Royal Free Hospital, University College London, London, United Kingdom
| | - Peter De Cruz
- Department of Gastroenterology, Austin Health, Melbourne, VIC, Australia
- Department of Medicine, Austin Academic Centre, The University of Melbourne, Melbourne, VIC, Australia
| | - Kinga Duszyc
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, QLD, Australia
| | - Paul A Gleeson
- Department of Biochemistry and Pharmacology and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Melbourne, VIC, Australia
| | - Benjamin T Kile
- Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
| | - Lisa A Mielke
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - Alpha S Yap
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, QLD, Australia
| | - John M Mariadason
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - W Douglas Fairlie
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia.
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia.
- Department of Biochemistry and Chemistry, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia.
- La Trobe Institute for Molecular Science, La Trobe University, Bundoora, VIC, Australia.
| | - Erinna F Lee
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia.
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia.
- Department of Biochemistry and Chemistry, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia.
- La Trobe Institute for Molecular Science, La Trobe University, Bundoora, VIC, Australia.
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Saragih HT, Fauziah IN, Saputri DA, Chasani AR. Dietary macroalgae Chaetomorpha linum supplementation improves morphology of small intestine and pectoral muscle, growth performance, and meat quality of broilers. Vet World 2024; 17:470-479. [PMID: 38595672 PMCID: PMC11000464 DOI: 10.14202/vetworld.2024.470-479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 01/29/2024] [Indexed: 04/11/2024] Open
Abstract
Background and Aim Over the last decades, the poultry industry has experienced steady growth. Although the industry is gradually expanding in Indonesia, poultry feed production has always been expensive. There is a need to study alternative ingredients to obtain affordable feed from natural resources. Chaetomorpha linum (CL) is an abundant macroalgae available throughout the year in Indonesia. This study aimed to determine the effect of CL on the histological structure of the small intestine, pectoralis muscle, growth performance, and meat quality of broilers. Materials and Methods This study used 300-day-old chick (DOC) male broilers that were reared until they were 21 days old. This study used a completely randomized design with four treatment groups and five replications, and each replication group contained 15 DOC individuals. The treatment groups consisted of Control (CON), CON basal feed (BF), CL1 (0.75%/kg BF), CL2 (1.5%/kg BF), and CL3 (3%/kg BF) groups. The histological structure of the small intestine, pectoralis muscle, growth performance, and meat quality of the broiler was examined. Results Small intestine and pectoral muscle histomorphology, growth performance, and meat quality were significantly improved in the CL2 (1.5%) and CL3 (3%) groups compared with the CL1 (0.75%) and CON groups. Conclusion Dietary CL supplementation ameliorates small intestine and pectoral muscle histomorphology, growth performance, and meat quality of broilers.
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Affiliation(s)
- H. T. Saragih
- Laboratory of Animal Development Structure, Faculty of Biology, Universitas Gadjah Mada, Sleman, Yogyakarta 55281, Indonesia
| | - I. N. Fauziah
- Graduate Program of Biology, Department of Tropical Biology, Universitas Gadjah Mada, Sleman, Yogyakarta 55281, Indonesia
| | - D. A. Saputri
- Graduate Program of Biology, Department of Tropical Biology, Universitas Gadjah Mada, Sleman, Yogyakarta 55281, Indonesia
| | - A. R. Chasani
- Laboratory of Plant Systematics, Faculty of Biology, Universitas Gadjah Mada, Sleman, Yogyakarta 55281, Indonesia
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