Thymosin alpha 1 alleviates inflammation and prevents infection in patients with severe acute pancreatitis through immune regulation: a systematic review and meta-analysis

BackgroundImmune and inflammatory disorders are part of the complex pathophysiological processes that exacerbate severe acute pancreatitis (SAP) and subsequent infection. Thymosin alpha 1 (Tα1) is an important immunomodulatory agent in clinical practice, but there is a lack evidence to prove its eff...

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Main Authors: Yong Tian, Jiaqi Yao, Yihan Ma, Pengcheng Zhang, Xiaofang Zhou, Wenjie Xie, Wenfu Tang
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-06-01
Series:Frontiers in Immunology
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Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2025.1571456/full
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author Yong Tian
Jiaqi Yao
Yihan Ma
Pengcheng Zhang
Xiaofang Zhou
Wenjie Xie
Wenfu Tang
Wenfu Tang
author_facet Yong Tian
Jiaqi Yao
Yihan Ma
Pengcheng Zhang
Xiaofang Zhou
Wenjie Xie
Wenfu Tang
Wenfu Tang
author_sort Yong Tian
collection DOAJ
description BackgroundImmune and inflammatory disorders are part of the complex pathophysiological processes that exacerbate severe acute pancreatitis (SAP) and subsequent infection. Thymosin alpha 1 (Tα1) is an important immunomodulatory agent in clinical practice, but there is a lack evidence to prove its effectiveness in improving the condition of SAP patients. In this study, we aimed to evaluate the efficacy in meta-analysis.MethodsWe systematically searched PubMed, Embase, Web of Science, Cochrane Library and China National Knowledge Infrastructure (CNKI) up to February 1, 2025. Randomized controlled studies comparing the efficacy of Tα1 as intervention measure with non-Tα1 in improving immune regulation for patients with SAP were included. Review Manager 5.3 was used to assess endpoints in the meta-analysis.ResultsFive randomized controlled trials comprising 706 patients with SAP were included. The results indicated that Tα1 could increase the percentages of CD4+ cells (MD=4.53, 95%CI [3.02, 6.04], P<0.00001) and improve the CD4+/CD8+ ratio (MD=0.42, 95%CI [0.26, 0.58], P<0.00001) in SAP patients. There was no statistically significant decrease in CD8+ cells. For inflammation, lower-dose Tα1 could significantly reduce C-reactive protein (CRP) levels (mg/L) (MD=-30.12, 95%CI [-35.75, -24.49], P<0.00001), while higher-dose Tα1 showed no statistically significant difference (MD=-3.83, 95%CI [-12.14, 4.49], P=0.37). In terms of infection, the immunomodulatory therapy of Tα1 obviously reduced the overall incidence of extrapancreatic infections in SAP patients (RR=0.56, 95%CI [0.40, 0.78], P=0.0005), especially for blood (RR=0.60, 95%CI [0.38, 0.94], P=0.03) and abdominal (RR=0.38, 95%CI [0.19, 0.78], P<0.0001), while the reduction in lung infections was not statistically significant. Regarding hospital stay (days), Tα1 did not significantly reduce the time spent (MD=-4.22, 95%CI [-11.53, 3.10], P=0.26). However, Tα1 reduced the APACHE II score (MD=-1.52, 95%CI [-2.22, -0.83], P<0.0001).ConclusionTα1 can regulate the balance of immune cells and alleviate immune suppression in SAP patients, including increasing CD4+ T cells and CD4+/CD8+ ratios. Tα1 may exert anti-inflammatory and extrapancreatic infection-preventive effects on SAP patients and improve their condition or prognosis. More researches are needed to validate the results.Systematic review registrationhttps://www.crd.york.ac.uk/prospero, identifier CRD42024570517.
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spelling doaj-art-0d4463820d9c492ea20aef7ee05c03c42025-08-20T02:07:24ZengFrontiers Media S.A.Frontiers in Immunology1664-32242025-06-011610.3389/fimmu.2025.15714561571456Thymosin alpha 1 alleviates inflammation and prevents infection in patients with severe acute pancreatitis through immune regulation: a systematic review and meta-analysisYong Tian0Jiaqi Yao1Yihan Ma2Pengcheng Zhang3Xiaofang Zhou4Wenjie Xie5Wenfu Tang6Wenfu Tang7Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, ChinaDepartment of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, ChinaDepartment of Gastroenterology and Hepatology, Chengdu First People’s Hospital, Chengdu, Sichuan, ChinaDepartment of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, ChinaDepartment of Gastroenterology and Hepatology, Chengdu First People’s Hospital, Chengdu, Sichuan, ChinaDepartment of General Surgery, The Third Hospital of Mianyang Sichuan Mental Health Center, Mianyang, Sichuan, ChinaDepartment of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, ChinaWest China Center of Excellence for Pancreatitis, West China Hospital, Sichuan University, Chengdu, Sichuan, ChinaBackgroundImmune and inflammatory disorders are part of the complex pathophysiological processes that exacerbate severe acute pancreatitis (SAP) and subsequent infection. Thymosin alpha 1 (Tα1) is an important immunomodulatory agent in clinical practice, but there is a lack evidence to prove its effectiveness in improving the condition of SAP patients. In this study, we aimed to evaluate the efficacy in meta-analysis.MethodsWe systematically searched PubMed, Embase, Web of Science, Cochrane Library and China National Knowledge Infrastructure (CNKI) up to February 1, 2025. Randomized controlled studies comparing the efficacy of Tα1 as intervention measure with non-Tα1 in improving immune regulation for patients with SAP were included. Review Manager 5.3 was used to assess endpoints in the meta-analysis.ResultsFive randomized controlled trials comprising 706 patients with SAP were included. The results indicated that Tα1 could increase the percentages of CD4+ cells (MD=4.53, 95%CI [3.02, 6.04], P<0.00001) and improve the CD4+/CD8+ ratio (MD=0.42, 95%CI [0.26, 0.58], P<0.00001) in SAP patients. There was no statistically significant decrease in CD8+ cells. For inflammation, lower-dose Tα1 could significantly reduce C-reactive protein (CRP) levels (mg/L) (MD=-30.12, 95%CI [-35.75, -24.49], P<0.00001), while higher-dose Tα1 showed no statistically significant difference (MD=-3.83, 95%CI [-12.14, 4.49], P=0.37). In terms of infection, the immunomodulatory therapy of Tα1 obviously reduced the overall incidence of extrapancreatic infections in SAP patients (RR=0.56, 95%CI [0.40, 0.78], P=0.0005), especially for blood (RR=0.60, 95%CI [0.38, 0.94], P=0.03) and abdominal (RR=0.38, 95%CI [0.19, 0.78], P<0.0001), while the reduction in lung infections was not statistically significant. Regarding hospital stay (days), Tα1 did not significantly reduce the time spent (MD=-4.22, 95%CI [-11.53, 3.10], P=0.26). However, Tα1 reduced the APACHE II score (MD=-1.52, 95%CI [-2.22, -0.83], P<0.0001).ConclusionTα1 can regulate the balance of immune cells and alleviate immune suppression in SAP patients, including increasing CD4+ T cells and CD4+/CD8+ ratios. Tα1 may exert anti-inflammatory and extrapancreatic infection-preventive effects on SAP patients and improve their condition or prognosis. More researches are needed to validate the results.Systematic review registrationhttps://www.crd.york.ac.uk/prospero, identifier CRD42024570517.https://www.frontiersin.org/articles/10.3389/fimmu.2025.1571456/fullthymosin alpha 1inflammationinfectionsevere acute pancreatitisimmune regulationmeta-analysis
spellingShingle Yong Tian
Jiaqi Yao
Yihan Ma
Pengcheng Zhang
Xiaofang Zhou
Wenjie Xie
Wenfu Tang
Wenfu Tang
Thymosin alpha 1 alleviates inflammation and prevents infection in patients with severe acute pancreatitis through immune regulation: a systematic review and meta-analysis
Frontiers in Immunology
thymosin alpha 1
inflammation
infection
severe acute pancreatitis
immune regulation
meta-analysis
title Thymosin alpha 1 alleviates inflammation and prevents infection in patients with severe acute pancreatitis through immune regulation: a systematic review and meta-analysis
title_full Thymosin alpha 1 alleviates inflammation and prevents infection in patients with severe acute pancreatitis through immune regulation: a systematic review and meta-analysis
title_fullStr Thymosin alpha 1 alleviates inflammation and prevents infection in patients with severe acute pancreatitis through immune regulation: a systematic review and meta-analysis
title_full_unstemmed Thymosin alpha 1 alleviates inflammation and prevents infection in patients with severe acute pancreatitis through immune regulation: a systematic review and meta-analysis
title_short Thymosin alpha 1 alleviates inflammation and prevents infection in patients with severe acute pancreatitis through immune regulation: a systematic review and meta-analysis
title_sort thymosin alpha 1 alleviates inflammation and prevents infection in patients with severe acute pancreatitis through immune regulation a systematic review and meta analysis
topic thymosin alpha 1
inflammation
infection
severe acute pancreatitis
immune regulation
meta-analysis
url https://www.frontiersin.org/articles/10.3389/fimmu.2025.1571456/full
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