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Establishment of a Hyperacute Rejection Model of ABO-Incompatible Renal Transplantation in Nonhuman Primates

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单位: [1]Huazhong Univ Sci & Technol, Inst Organ Transplantat, Tongji Hosp, Tongji Med Coll, Wuhan, Peoples R China [2]Minist Educ, Key Lab Organ Transplantat, Wuhan, Peoples R China [3]Natl Hlth Commiss NHC, Key Lab Organ Transplantat, Wuhan, Peoples R China [4]Chinese Acad Med Sci, Key Lab Organ Transplantat, Wuhan, Peoples R China
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关键词: ABO-incompatible renal transplantation hyperacute rejection blood group antibody flow cytometry non-human primate (NHP)

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The establishment of a hyperacute rejection (HAR) model of ABO-incompatible kidney transplantation (ABOi-KTx) in nonhuman primates is of great significance for the study of the relevant clinical pathophysiological processes and related interventions in ABOi-KTx. In this study, blood group B cynomolgus monkeys were presensitized with synthetic blood group A-antigen conjugated to keyhole limpet hemocyanin (A-KLH) to boost circulating anti-A antibody levels. The serum anti-A antibody levels were measured by flow cytometry using type A human reagent red blood cells (RBCs) or monkey primary renal tubular epithelial cells (RTECs) as target cells. ABOi-KTx was performed in type B monkeys using type A monkeys as donors. After 14 days of A-KLH sensitization, 12 of 16 (75%) type B monkeys had significantly elevated anti-A antibody levels. We found that in order to avoid irregular results in the detection of blood group antibodies by flow cytometry, it was more effective to use RTECs rather than RBCs as target cells. In the absence of presensitization, ABOi-KTx in three monkeys with relatively high levels of natural anti-A antibodies did not produce HAR. However, when four Type B monkeys with significantly increased anti-A antibodies after presensitization were randomly selected as recipients for ABOi-KTx, the allografts in all four monkeys developed HAR with typical pathologic characteristics. Thus, we have successfully established a monkey model of HAR in ABOi-KTx via blood group antigen presensitization, which will be helpful for the further study of rejection, accommodation, and clinical intervention in ABOi-KTx.

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出版当年[2020]版:
大类 | 2 区 医学
小类 | 2 区 免疫学
最新[2025]版:
大类 | 2 区 医学
小类 | 2 区 免疫学
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出版当年[2019]版:
Q1 IMMUNOLOGY
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Q1 IMMUNOLOGY

影响因子: 最新[2023版] 最新五年平均 出版当年[2019版] 出版当年五年平均 出版前一年[2018版] 出版后一年[2020版]

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第一作者单位: [1]Huazhong Univ Sci & Technol, Inst Organ Transplantat, Tongji Hosp, Tongji Med Coll, Wuhan, Peoples R China
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通讯机构: [1]Huazhong Univ Sci & Technol, Inst Organ Transplantat, Tongji Hosp, Tongji Med Coll, Wuhan, Peoples R China [2]Minist Educ, Key Lab Organ Transplantat, Wuhan, Peoples R China [3]Natl Hlth Commiss NHC, Key Lab Organ Transplantat, Wuhan, Peoples R China [4]Chinese Acad Med Sci, Key Lab Organ Transplantat, Wuhan, Peoples R China
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