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Ruiz LM, de Oliveira Braga KA, Nepomuceno NA, Correia AT, Ribeiro de Carvalho GH, Vilela VS, Dolhnikoff M, Pêgo-Fernandes PM. Effect of Hypertonic Saline Solution on the Ventilatory Mechanics of Lungs Donated After Brain Death. J Surg Res 2024; 298:109-118. [PMID: 38603941 DOI: 10.1016/j.jss.2024.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 01/18/2024] [Accepted: 02/16/2024] [Indexed: 04/13/2024]
Abstract
INTRODUCTION Brain death (BD) compromises the viability of the lung for donation. Hypertonic saline solution (HSS) induces rapid intravascular volume expansion and immunomodulatory action. We investigated its role in ventilatory mechanics (VMs) and in the inflammatory activity of the lungs of rats subjected to BD. METHODS Wistar rats were divided into four groups: control, n = 10: intact rats subjected to extraction of the heart-lung block; BD, n = 8 (BD): rats treated with isotonic saline solution (4 mL/kg) immediately after BD; hypertonic saline 0 h, n = 9 (Hip.0'): rats treated with HSS (4 mL/kg) immediately after BD; and hypertonic saline 1 h, n = 9 (Hip.60'), rats treated with HSS (4 mL/kg) 60 min after BD. The hemodynamic characteristics, gas exchange, VMs, inflammatory mediators, and histopathological evaluation of the lung were evaluated over 240 min of BD. RESULTS In VMs, we observed increased airway resistance, tissue resistance, tissue elastance, and respiratory system compliance in the BD group (P < 0.037), while the treated groups showed no impairment over time (P > 0.05). In the histological analysis, the BD group showed a greater area of perivascular edema and a higher neutrophil count than the control group and the Hip.60' group (P < 0.05). CONCLUSIONS Treatment with HSS was effective in preventing changes in the elastic and resistive pulmonary components, keeping them at baseline levels. Late treatment reduced perivascular and neutrophilic edema in lung tissue.
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Affiliation(s)
- Liliane Moreira Ruiz
- Laboratorio de Pesquisa em Cirurgia Toracica, Instituto do Coração (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Sao Paulo, Brazil.
| | - Karina Andrighetti de Oliveira Braga
- Laboratorio de Pesquisa em Cirurgia Toracica, Instituto do Coração (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Sao Paulo, Brazil
| | - Natalia Aparecida Nepomuceno
- Laboratorio de Pesquisa em Cirurgia Toracica, Instituto do Coração (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Sao Paulo, Brazil
| | - Aristides Tadeu Correia
- Laboratorio de Pesquisa em Cirurgia Toracica, Instituto do Coração (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Sao Paulo, Brazil
| | | | - Vanessa Sana Vilela
- Doctoral Student, Laboratory of Thoracic Surgery Research, Heart Institute (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Sao Paulo, Brazil
| | - Marisa Dolhnikoff
- Pathology Departament, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Sao Paulo, Brazil
| | - Paulo Manuel Pêgo-Fernandes
- Laboratorio de Pesquisa em Cirurgia Toracica, Instituto do Coração (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Sao Paulo, Brazil
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Hu K, He SM, Zhang C, Zhang YJ, Gu Q, Shi HZ, Wang DD. Optimizing the initial tacrolimus dosage in Chinese children with lung transplantation within normal hematocrit levels. Front Pediatr 2024; 12:1090455. [PMID: 38357508 PMCID: PMC10864595 DOI: 10.3389/fped.2024.1090455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/16/2024] [Indexed: 02/16/2024] Open
Abstract
Background The appropriate initial dosage of tacrolimus is undefined in Chinese pediatric lung transplant patients with normal hematocrit values. The purpose of this study is to optimize the initial dose of tacrolimus in Chinese children who are undergoing lung transplantation and have normal hematocrit levels. Methods The present study is based on a published population pharmacokinetic model of tacrolimus in lung transplant patients and uses the Monte Carlo simulation to optimize the initial tacrolimus dosage in Chinese children with lung transplantation within normal hematocrit levels. Results Within normal hematocrit levels, for children with lung transplantation who do not carry the CYP3A5*1 gene and have no coadministration with voriconazole, it is recommended to administer tacrolimus at a dosage of 0.02 mg/kg/day, divided into two doses, for children weighing 10-32 kg, and a dosage of 0.03 mg/kg/day, also divided into two doses, for children weighing 32-40 kg. For children with lung transplantation who carry the CYP3A5*1 gene and have no coadministration with voriconazole, tacrolimus dosages of 0.02, 0.03, and 0.04 mg/kg/day split into two doses are recommended for children weighing 10-15, 15-32, and 32-40 kg, respectively. For children with lung transplantation who do not carry the CYP3A5*1 gene and have coadministration with voriconazole, tacrolimus dosages of 0.01 and 0.02 mg/kg/day split into two doses are recommended for children weighing 10-17 and 17-40 kg, respectively. For children with lung transplantation who carry the CYP3A5*1 gene and have coadministration with voriconazole, a tacrolimus dosage of 0.02 mg/kg/day split into two doses is recommended for children weighing 10-40 kg. Conclusions It is the first time to optimize the initial dosage of tacrolimus in Chinese children undergoing lung transplantation within normal hematocrit.
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Affiliation(s)
- Ke Hu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy & School of Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Su-Mei He
- Department of Pharmacy, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou, Jiangsu, China
| | - Cun Zhang
- Department of Pharmacy, Xuzhou Oriental Hospital Affiliated to Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yi-Jia Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy & School of Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Qian Gu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy & School of Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Hao-Zhe Shi
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy & School of Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Dong-Dong Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy & School of Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu, China
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He X, Luo Z, Han Y, Yu J, Fang S, Guo L. Correlation analysis of the peripheral blood lymphocyte count and occurrence of pneumonia after lung transplantation. Transpl Immunol 2023; 78:101822. [PMID: 36921729 DOI: 10.1016/j.trim.2023.101822] [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: 09/02/2022] [Revised: 02/27/2023] [Accepted: 03/11/2023] [Indexed: 03/16/2023]
Abstract
BACKGROUND Infections are the most common complication in patients after lung transplantation and the main cause of death at all stages after transplantation; therefore, awareness regarding the occurrence of infectious pneumonia after lung transplantation is vital. This study aimed to explore the correlation between the absolute lymphocyte and T-lymphocyte subpopulation counts in the peripheral blood and the occurrence of pneumonia after lung transplantation and to predict the risk of pneumonia development after lung transplantation. MATERIALS Patients who underwent lung transplantation with long-term follow-up between June 2018 and December 2021 were prospectively included. The patients were divided into pneumonia and non-pneumonia groups. Demographic and clinical characteristics, and the levels of leukocytes, neutrophils, platelets, C-reactive protein (CRP), procalcitonin (PCT), serum albumin, peripheral blood T lymphocytes, and CD4+ and CD8+ T cells in the peripheral blood were measured in both groups. RESULTS We included 22 patients with post-lung transplants in the analysis. Of the 104 collected samples, 26 (56.5%) were pathogenically positive, 16 (61.5%) had bacterial infections, 7 samples (26.9%) had fungal infections, and 8 (30.8%) had viral infections. Patients with pneumonia had higher levels of peripheral blood neutrophils (P = 0.01), platelets (P = 0.03), and CRP (P < 0.001) than did those without pneumonia. Logistic regression analysis showed that the levels of peripheral blood neutrophils, total T lymphocytes, CRP, and PCT were associated with the development of pneumonia after transplantation (P < 0.05), as documented by their area under the curve (AUC) values of 0.702, 0.792, 0.899, and 0.789, respectively. The AUC for the combined receiver operating characteristic curve for predicting the development of pneumonia was 0.943, with a sensitivity of 91.3% and specificity of 93.1%. There was no significant difference in T-lymphocyte counts in patients with lung transplants between the pneumonia and non-pneumonia groups who were treated with two anti-rejection agents. In contrast, the absolute lymphocyte, total T-lymphocyte, and CD4+ and CD8+ T-cell counts in patients who developed pneumonia after treatment with three anti-rejection agents were lower than those in patients who did not develop pneumonia (P < 0.05). CONCLUSION Bacterial pneumonia is more common after lung transplantation than after fungal or viral infections. Peripheral blood T-lymphocyte counts combined with neutrophil, CRP, and PCT levels had good predictive value for the development of pneumonia after lung transplantation. Monitoring of patients should be strengthened by implementing peripheral blood T-lymphocyte counts to improve the early identification and prevention of pneumonia after lung transplantation.
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Affiliation(s)
- Xing He
- School of Clinical Medicine, Chengdu Medical College, Chengdu, China; Department of Pulmonary and Critical Care Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Zeli Luo
- Department of Pulmonary and Critical Care Medicine, Wenjiang Hospital of Sichuan Provincial People's, Chengdu, China
| | - Yicen Han
- Department of Pulmonary and Critical Care Medicine, Chengdu Second People's Hospital, Chengdu, China
| | - Jia Yu
- School of Clinical Medicine, Chengdu Medical College, Chengdu, China; Department of Pulmonary and Critical Care Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Siyu Fang
- Medical School of University of Electronic Science and Technology of China, Chengdu, China; Department of Pulmonary and Critical Care Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Lu Guo
- Department of Pulmonary and Critical Care Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.
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AKDENİZ FATMATUBA, AKBULUT ZEYNEP, VAYVADA MUSTAFA, KALAMANOĞLU BALCI MERİH, YEGİNSU ALİ, YANIKKAYA DEMİREL GULDEREN, KUTLU CEMALASIM. Monitoring T-Cell Kinetics in the Early Recovery Period of Lung Transplantation Cases by Copy Number Levels of T-Cell Receptor Excision Circle. In Vivo 2023; 37:310-319. [PMID: 36593057 PMCID: PMC9843769 DOI: 10.21873/invivo.13081] [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: 09/15/2022] [Revised: 10/21/2022] [Accepted: 11/10/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND/AIM Lung transplantation is a life-saving procedure for patients with end-stage lung diseases. T-Cell receptor excision circle (TREC) is circular DNA produced during T-cell receptor gene rearrangement in the thymus and indicates naive T-cell migration from the thymus. Therefore, its levels represent thymic T-cell output. Post-transplant lymphocyte kinetics correlate with graft tolerance. The aim of this study was to investigate T-lymphocyte kinetics in the early recovery period after lung transplantation. For this purpose, copy numbers of TREC were determined in patients with a lung transplant. In addition, TREC copy numbers were evaluated according to age, diagnosis and the forced expiratory volume in 1 second (FEV1) of lung transplant patients. MATERIALS AND METHODS Peripheral blood samples were taken from patients aged 23 to 59 years who underwent lung transplantation at the Thoracic Surgery Clinic, Kartal-Koşuyolu High Specialization Educational and Research Hospital. This study included peripheral blood samples from 11 lung transplant patients (comprising four with chronic obstructive pulmonary disease, three with idiopathic pulmonary fibrosis, one with cystic fibrosis, one with silicosis and two with bronchiectasis; three females in total). Samples were taken at three different timepoints: Before transplant, and 24 hours and 7 days post transplant. TREC copy numbers were analyzed with real time reverse transcriptase-polymerase chain reaction. RESULTS Post-transplant TREC numbers and density values were higher compared to pre-transplant values, although these differences were statistically insignificant. TREC copy numbers were found to be significantly higher in patients younger than 45 years compared to patients older than 45 years. At 24 hours after the transplant, the average TREC copy number/peripheral blood mononuclear cells of the cases with an FEV1 value of or below 50% was found to be statistically significantly higher than that of cases with an FEV1 value above 50% (p=0.046). There was no statistically significant difference in TREC copy numbers between male and female patients or by diagnostic group. CONCLUSION TREC copy numbers can be evaluated as a prognostic marker for lung transplantation. There is a need for multicenter studies with more patients.
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Affiliation(s)
- FATMA TUBA AKDENİZ
- Department of Medical Biology, Faculty of Medicine, Yeditepe University, Istanbul, Turkey
| | - ZEYNEP AKBULUT
- Department of Medical Biology and Genetic, Faculty of Medicine, Maltepe University, Istanbul, Turkey
| | - MUSTAFA VAYVADA
- Thoracic Surgery Clinic, Kartal-Koşuyolu High Specialization Educational and Research Hospital, Istanbul, Turkey
| | | | - ALİ YEGİNSU
- Thoracic Surgery Clinic, Liv Hospital Vadi, Istanbul, Turkey
| | | | - CEMAL ASIM KUTLU
- Department of Chest Disease, Faculty of Medicine, Bahçeşehir University, Istanbul, Turkey
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Farshbafnadi M, Razi S, Rezaei N. Transplantation. Clin Immunol 2023. [DOI: 10.1016/b978-0-12-818006-8.00008-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Yang M, Ling X, Xiao J. miR-141 exacerbates lung ischemia-reperfusion injury by targeting EGFR/β-catenin axis mediated autophagy. Aging (Albany NY) 2022; 14:6507-6519. [PMID: 35972910 PMCID: PMC9467402 DOI: 10.18632/aging.204137] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 02/15/2022] [Indexed: 11/25/2022]
Abstract
Some microRNAs (miRNAs) play important roles in lung ischemia-reperfusion injury (LIRI) injury. Here, this study aimed to examine whether miR-141 was related to lung ischemia-reperfusion injury (IRI) via regulating autophagy and the epidermal growth factor receptor (EGFR), and to explore the underlying signal transduction pathways. To this end, we constructed the LIRI cell model and mouse models, separately. According to RT-qPCR and Western blotting (WB) analysis results, miR-141 up-regulation together with β-catenin and EGFR down-regulation within mouse pulmonary microvascular endothelial cells (PMVECs) or lung tissues was related to lung IRI. Besides, we conducted dual-luciferase reporter assay, which suggested the binding of EGFR to miR-141. In addition, we carried out TUNEL staining, HE staining, and flow cytometric analysis to assess the apoptosis of PMVECs and the injury to mouse lung tissues. Furthermore, we performed light-chain immunofluorescence assay to examine autophagosomes within PMVECs. According to our results, miR-141 suppressed β-catenin level through reducing EGFR level. Besides, the miR-141/EGFR/β-catenin axis enhanced autophagy to aggravate LIRI. To sum up, miR-141 suppresses EGFR expression to inhibit β-catenin level, which subsequently aggravates autophagy and complicates LIRI. The above results offer the candidate therapeutic target for the treatment of lung IRI.
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Affiliation(s)
- Miao Yang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
- Department of Anesthesiology, Guizhou Province People’s Hospital, Guiyang, P.R. China
| | - Xiaomei Ling
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Jinfang Xiao
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
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Camargos P, Watts KD. Inequalities and Inequities in Pediatric Respiratory Diseases. Pediatr Clin North Am 2021; 68:293-304. [PMID: 33228939 DOI: 10.1016/j.pcl.2020.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Social inequality refers to disparities in society that have the effect of limiting a group's socioeconomic, educational, and intellectual potential. Inequity in health means any limitation to access comprehensive health services that also hinders the achievement of well-being and favorable health outcomes. Strategies for more equitable growth to eradicate global poverty would contribute to reducing health inequities and improve health care outcomes. Coordinated efforts between governments, private sector, families, and interested stakeholders are needed. This article discusses inequality and inequity in pediatric respiratory diseases, the challenges confronted, and the strategies needed to mitigate these disparities.
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Affiliation(s)
- Paulo Camargos
- Department of Pediatrics, Medical School, Pediatric Pulmonology Unit, University Hospital, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Kimberly Danieli Watts
- Division of Pediatric Pulmonary Medicine, Advocate Children's Hospital, Park Ridge, IL, USA; Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA.
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Huang J, Pan J, Wang Z, Wang D, Chen J. BLTx Combined With Cardiac Correction in Treatment of PAH in Puerpera: Is It a Feasible Strategy? Ann Thorac Surg 2020; 111:e249-e251. [PMID: 32950491 DOI: 10.1016/j.athoracsur.2020.06.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 06/20/2020] [Indexed: 11/17/2022]
Abstract
Though pregnancy is not recommended under current guidelines in pulmonary arterial hypertension, some women insist on parturition. The related surgical treatments are controversial, especially to those complicated with Eisenmenger syndrome. In this report, 2 cases of severe pulmonary arterial hypertension complicated with Eisenmenger syndrome were reviewed. Owing to a lifesaving tenet, bilateral lung transplantation combined with surgical atrioventricular defect correction were performed after careful assessments. Both patients were followed up at 1 year and displayed no obvious complication. It showed that the strategy of bilateral lung transplantation combined with a cardiac correction may be feasible and worthy of further investigation.
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Affiliation(s)
- Jian Huang
- Department of Lung Transplant Center, Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Jun Pan
- Department of Thoracic Surgery, Affiliated Nanjing Drum Tower Hospital of Nanjing University, Nanjing, China
| | - Zitao Wang
- Department of Lung Transplant Center, Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Dongjin Wang
- Department of Thoracic Surgery, Affiliated Nanjing Drum Tower Hospital of Nanjing University, Nanjing, China
| | - Jingyu Chen
- Department of Lung Transplant Center, Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China.
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Yu J, Xu H, Cui J, Chen S, Zhang H, Zou Y, Zhao J, Le S, Jiang L, Chen Z, Liu H, Zhang D, Xia J, Wu J. PLK1 Inhibition alleviates transplant-associated obliterative bronchiolitis by suppressing myofibroblast differentiation. Aging (Albany NY) 2020; 12:11636-11652. [PMID: 32541091 PMCID: PMC7343459 DOI: 10.18632/aging.103330] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 04/17/2020] [Indexed: 12/12/2022]
Abstract
Chronic allograft dysfunction (CAD) resulting from fibrosis is the major limiting factor for long-term survival of lung transplant patients. Myofibroblasts promote fibrosis in multiple organs, including the lungs. In this study, we identified PLK1 as a promoter of myofibroblast differentiation and investigated the mechanism by which its inhibition alleviates transplant-associated obliterative bronchiolitis (OB) during CAD. High-throughput bioinformatic analyses and experiments using the murine heterotopic tracheal transplantation model revealed that PLK1 is upregulated in grafts undergoing CAD as compared with controls, and that inhibiting PLK1 alleviates OB in vivo. Inhibition of PLK1 in vitro reduced expression of the specific myofibroblast differentiation marker α-smooth muscle actin (α-SMA) and decreased phosphorylation of both MEK and ERK. Importantly, we observed a similar phenomenon in human primary fibroblasts. Our results thus highlight PLK1 as a promising therapeutic target for alleviating transplant-associated OB through suppression of TGF-β1-mediated myofibroblast differentiation.
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Affiliation(s)
- Jizhang Yu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Heng Xu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Jikai Cui
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Shanshan Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Hao Zhang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Yanqiang Zou
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Jing Zhao
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Sheng Le
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Lang Jiang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Zhang Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Hao Liu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Dan Zhang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Jiahong Xia
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Jie Wu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
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Martin AK, Renew JR, Jayaraman AL, Murray AW, Fritz AV, Ramakrishna H. Analysis of Outcomes in Lung Transplantation. J Cardiothorac Vasc Anesth 2019; 33:1455-1466. [DOI: 10.1053/j.jvca.2018.06.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Indexed: 01/04/2023]
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Peptide Tk-PQ induces immunosuppression in skin allogeneic transplantation via increasing Foxp3 + Treg and impeding nuclear translocation of NF-κB. Mol Immunol 2018; 101:597-607. [PMID: 30001873 DOI: 10.1016/j.molimm.2018.05.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 05/09/2018] [Accepted: 05/09/2018] [Indexed: 12/14/2022]
Abstract
Solid organ transplantation is used as the last resort for patients with end-stage disease, but allograft rejection is an unsolved problem. Here, we showed that Tk-PQ, a peptide derived from trichosanthin, had an immune-suppressive effect without obvious cytotoxicity in vitro and in a mouse skin allo-transplantation model. In vitro, treatment of Tk-PQ administrated type 2 T helper cell (Th2)/regulatory T-cell (Treg) cytokines, and increased the ratio of CD4+CD25+Foxp3+ Treg by repressing the PI3K/mTOR pathway. In addition, Tk-PQ decreased NF-κB activation to downregulate pro-inflammatory cytokines. Tk-PQ treatment in the mouse skin transplantation model also caused the similar molecular and cellular phenotypes. Furthermore, Tk-PQ enhanced the suppressive function of Treg by increasing Foxp3 expression, and substantially improved allograft survival. These finding demonstrate that Tk-PQ has the potential to be used in clinical allogeneic transplantation.
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Public's Knowledge and Attitudes Toward Vascularized Composite Allotransplantation and Donation. Aesthetic Plast Surg 2016; 40:301-8. [PMID: 26893283 DOI: 10.1007/s00266-016-0623-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 02/01/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND The purpose of this survey was to assess the public's knowledge and attitudes toward vascularized composite allotransplantation and donation. METHODS Members of the public (n = 5942) were surveyed using a questionnaire that examined their knowledge and attitudes concerning solid organs (kidney, heart, liver, lung, and pancreas) and vascularized composite tissue (hand/upper extremity, lower extremity, abdominal wall, and face) transplantations and donations. RESULTS Respondents demonstrated greater (all P < 0.05) knowledge and willingness to donate and/or receive solid organs than vascularized composite tissues. Educational level, accurate knowledge, willingness to donate, and willingness to receive were significant (all P < 0.05) determinants of acceptance to donate and/or receive hand/upper extremity, lower extremity, face, and/or abdominal wall. CONCLUSION The public presented less knowledge and willingness to donate and/or receive hand/upper extremity, lower extremity, abdominal wall, and face. LEVEL OF EVIDENCE V This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.
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