Donor Batf3 inhibits murine lung allograft rejection and airway fibrosis. 2023

Tatsuaki Watanabe, and Christina Lam, and Jillian Oliver, and Hisashi Oishi, and Grace Teskey, and Samuel Beber, and Kristen Boonstra, and Juan Mauricio Umaña, and Hifza Buhari, and Betty Joe, and Zehong Guan, and Miho Horie, and Shaf Keshavjee, and Tereza Martinu, and Stephen C Juvet
Latner Thoracic Research Laboratories, University Health Network, University of Toronto, Toronto, Canada; Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.

Chronic lung allograft dysfunction (CLAD) limits survival after lung transplantation. Noxious stimuli entering the airways foster CLAD development. Classical dendritic cells (cDCs) link innate and adaptive immunity and exhibit regional and functional specialization in the lung. The transcription factor basic leucine zipper ATF-like 3 (BATF3) is absolutely required for the development of type 1 cDCs (cDC1s), which reside in the airway epithelium and have variable responses depending on the context. We studied the role of BATF3 in a mouse minor alloantigen-mismatched orthotopic lung transplant model of CLAD with and without airway inflammation triggered by repeated administration of intratracheal lipopolysaccharide (LPS). We found that cDC1s accumulated in allografts compared with isografts and that donor cDC1s were gradually replaced by recipient cDC1s. LPS administration increased the number of cDC1s and enhanced their state of activation. We found that Batf3-/- recipient mice experienced reduced acute rejection in response to LPS; in contrast, Batf3-/- donor grafts underwent enhanced lung and skin allograft rejection and drove augmented recipient cluster of differentiation 8+ T-cell expansion in the absence of LPS. Our findings suggest that donor and recipient cDC1s have differing and context-dependent roles and may represent a therapeutic target in lung transplantation.

UI MeSH Term Description Entries
D008070 Lipopolysaccharides Lipid-containing polysaccharides which are endotoxins and important group-specific antigens. They are often derived from the cell wall of gram-negative bacteria and induce immunoglobulin secretion. The lipopolysaccharide molecule consists of three parts: LIPID A, core polysaccharide, and O-specific chains (O ANTIGENS). When derived from Escherichia coli, lipopolysaccharides serve as polyclonal B-cell mitogens commonly used in laboratory immunology. (From Dorland, 28th ed) Lipopolysaccharide,Lipoglycans
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D011658 Pulmonary Fibrosis A process in which normal lung tissues are progressively replaced by FIBROBLASTS and COLLAGEN causing an irreversible loss of the ability to transfer oxygen into the bloodstream via PULMONARY ALVEOLI. Patients show progressive DYSPNEA finally resulting in death. Alveolitis, Fibrosing,Idiopathic Diffuse Interstitial Pulmonary Fibrosis,Fibroses, Pulmonary,Fibrosis, Pulmonary,Pulmonary Fibroses,Alveolitides, Fibrosing,Fibrosing Alveolitides,Fibrosing Alveolitis
D005355 Fibrosis Any pathological condition where fibrous connective tissue invades any organ, usually as a consequence of inflammation or other injury. Cirrhosis,Fibroses
D006084 Graft Rejection An immune response with both cellular and humoral components, directed against an allogeneic transplant, whose tissue antigens are not compatible with those of the recipient. Transplant Rejection,Rejection, Transplant,Transplantation Rejection,Graft Rejections,Rejection, Graft,Rejection, Transplantation,Rejections, Graft,Rejections, Transplant,Rejections, Transplantation,Transplant Rejections,Transplantation Rejections
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014184 Transplantation, Homologous Transplantation between individuals of the same species. Usually refers to genetically disparate individuals in contradistinction to isogeneic transplantation for genetically identical individuals. Transplantation, Allogeneic,Allogeneic Grafting,Allogeneic Transplantation,Allografting,Homografting,Homologous Transplantation,Grafting, Allogeneic
D016040 Lung Transplantation The transference of either one or both of the lungs from one human or animal to another. Grafting, Lung,Transplantation, Lung,Graftings, Lung,Lung Grafting,Lung Graftings,Lung Transplantations,Transplantations, Lung
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus

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