Articles tagged "Inflammation"

2022 American Transplant Congress
Donor Kidney-Resident Passenger Macrophages Promote CCL8-CCR8 Mediated Early Allograft Inflammation
A. Dangi¹, I. Husain², N. Natesh³, X. Shen³, J. Kwun⁴, X. Luo⁵
¹Medicine, Duke University Medical Center, Durham, NC, ²Duke University Medical Center, Durham, NC, ³Biomedical Engineering, Duke University, Durham, NC, ⁴Duke Transplant Center, Durham, NC, ⁵Duke University School of Medicine, Durham, NC
*Purpose: Early intragraft infiltration of monocytes and macrophages has been associated with acute and chronic allograft rejections. Nevertheless, underlying mechanism remained poorly understood. In the…
2022 American Transplant Congress
Analysis of Tissue and Effluent Damage Associated Molecular Patterns Following Hypothermic Oxygenated Machine Perfusion vs Static Cold Storage in Liver Transplantation
G. G. Panayotova, Y. Qin, S. Simonishvili, T. Ayorinde, F. Paterno, L. Brown, A. Amin, K. E. Lunsford, J. V. Guarrera
Transplant Surgery, Rutgers New Jersey Medical School, Newark, NJ
*Purpose: Hypothermic Oxygenated Machine Perfusion (HMP-O2) results in decreased ischemia/reperfusion injury (IRI) after liver transplantation; however, the molecular pathways of protection are largely unexplored. In…
2022 American Transplant Congress
Wide Spectrum of Molecular Injury Highlights Heterogeneity of Banff Tubulitis and Interstitial Inflammation Lesions
M. J. Ellis¹, T. Maw², E. Huang³, E. Stites⁴, F. Shihab⁵, D. C. Brennan⁶, G. Shekhtman⁷, N. Agrawal⁷, J. Zeng⁷, S. Kung⁸
¹Duke University, Durham, NC, ²University of Southern California, Los Angeles, CA, ³Cedars-Sinai Medical Center, Los Angeles, CA, ⁴University of Colorado, Aurora, CO, ⁵University of Utah, Salt Lake City, UT, ⁶Johns Hopkins School of Medicine, Baltimore, MD, ⁷CareDx, Brisbane, CA, ⁸University of California, San Francisco, San Francisco, CA
*Purpose: The pathological definition and clinical significance of borderline T cell-mediated rejection (BL-TCMR) remains an area of active debate, leading to inconsistencies in therapeutic strategy.…
2022 American Transplant Congress
Axl and MerTK Regulate the Activation of Liver Ischemia Reperfusion Injury by Upregulating Il-13 in Kupffer Cells
J. Zhang¹, M. Ni¹, H. Zhang¹, R. Busuttil¹, J. Kupiec-Weglinski¹, X. Wang², J. Jin³, Y. Zhai¹
¹Dumont-UCLA Transplant Center, Los Angeles, CA, ²The First Affiliated Hospital of Nanjing Medical University, Nanjing, China, ³Guilin Medical University, Guilin, China
*Purpose: Ischemia reperfusion injury (IRI) remains an unresolved clinical problem. A sterile inflammatory response drives the disease pathogenesis. Although mechanisms of liver innate immune activation…
2022 American Transplant Congress
Targeting the Bet Family Protein Brd4 Inhibits Inflammatory Macrophages and Promotes Heart Allograft Tolerance
X. Xiao
Surgery, Houston Methodist Hospital, Houston, TX
*Purpose: Infiltration of allografts by inflammatory macrophages is frequently associated with chronic graft loss In both animal models and clinical settings, but the mechanisms that…
2022 American Transplant Congress
Murine Intrahepatic Regulatory T Cells (TREGS) Modulate Acute Liver Inflammation by Promoting a Protective and Restorative Microenvironment
A. S. Kurt¹, K. Strobl², P. Ruiz¹, A. Sanchez-Fueyo¹, M. Martinez-Llordella¹
¹Inflammation Biology, King's College London, London, United Kingdom, ²Institute of Cancer Research, Medical University of Vienna, London, United Kingdom
*Purpose: CD4+CD25+Foxp3+ Tregs are known to acquire tissue-specific features and develop cytoprotective and regenerative functions. The extent to which this applies to liver-resident Tregs is…
2022 American Transplant Congress
Cd47 Expression on Transplanted Human Neonatal Mesenchymal Stem Cells Inhibits Phagocytosis in Rat Myocardial Infarction Model
M. Gunasekaran, R. Mishra, S. Sharma, P. Saha, L. Chen, S. Guru, A. Stefanowicz, A. Bilewska, S. Zarinebaf, G. Zhi-Dong, S. Kaushal
Lurie Childrens Hospital, Chicago, IL
*Purpose: Immune rejection of transplanted stem/progenitor cells is a major stumbling block in designing effective therapy for myocardial infarction (MI). Human neonatal mesenchymal stem cells…
2022 American Transplant Congress
Gsk3beta Regulates the Resolution of Liver Ischemia Reperfusion Injury via MerTK
H. Zhang¹, M. Ni², J. Zhang¹, R. Busuttil¹, J. Kupiec-Weglinski¹, W. Li³, X. Wang², Y. E. Zhai¹
¹Dumont-UCLA Transplant Center, Los Angeles, CA, ²The First Affiliated Hospital of Nanjing Medical University, Nanjing, China, ³China-Japan Union Hospital of Jilin University, JiLing, China
*Purpose: We have shown previously that glycogen synthase kinase β (Gsk3β) regulates liver inflammatory activation against ischemia/reperfusion injury (IRI). The question of whether it also…
2022 American Transplant Congress
Type 1 Innate Lymphoid Cells Are Critical Pro-Inflammatory Effector Cells in a Fatty Liver Mouse Model of Ischemia-Reperfusion Injury
J. Kang, J. Liggett, K. Oza, Y. Cui, K. Loh, D. Kwon, B. Kallakury, T. Fishbein, W. Cui, K. Kahn, A. Kroemer
MedStar Georgetown Transplant Institute, Washington, DC
*Purpose: Innate lymphoid cells (ILCs), the most recently described family of lymphoid cells, play fundamental roles in tissue homeostasis through the production of key cytokine…
2022 American Transplant Congress
Single-Cell RNA Sequencing Identifies the Changes of Human Normal Kidney After Transplantation
G. Huang¹, H. Zhang¹, X. Chen¹, G. Zhao¹, J. Luo¹, S. Yang², J. Qiu¹
¹Organ Transplant Center, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China, ²Department of Pathology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
*Purpose: We found that in all studies about kidney transplantation and single cell RNA sequencing (scRNA-seq), the native kidney rather than the transplanted kidney was…