Evidence map›Paper›PMID 34067829›Full record

ArticlePharmaceuticals (Basel, Switzerland)2021

Valproic Acid Suppresses Autoimmune Recurrence and Allograft Rejection in Islet Transplantation through Induction of the Differentiation of Regulatory T Cells and Can Be Used in Cell Therapy for Type 1 Diabetes.

Jeng-Rong Lin, Shing-Hwa Huang, Chih-Hsiung Wu, Yuan-Wu Chen, Zhi-Jie Hong, Chia-Pi Cheng, Huey-Kang Sytwu, Gu-Jiun Lin

Open access · goldAbstract read
In one paragraph

Article in Pharmaceuticals (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.0field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 10 citations in OpenAlex.

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  8. Islet allografts expressing a PD-L1 and IDO fusion protein evade immune rejection and reverse preexisting diabetes in immunocompetent mice without systemic immunosuppression.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2022
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 1 country.

Jeng-Rong LinGraduate Institute of Life Sciences, National Defense Medical Center, Taipei 11490, Taiwan.
Shing-Hwa HuangDepartment of Biology and Anatomy, National Defense Medical Center, Taipei 11490, Taiwan.
Chih-Hsiung WuDepartment of General Surgery, En Chu Kong Hospital, New Taipei 23741, Taiwan.
Yuan-Wu ChenSchool of Dentistry, National Defense Medical Center, Taipei 11490, Taiwan.
Zhi-Jie HongDepartment of General Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan.
Chia-Pi ChengDepartment of Biology and Anatomy, National Defense Medical Center, Taipei 11490, Taiwan.
Huey-Kang SytwuNational Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan 35053, Taiwan.
Gu-Jiun LinGraduate Institute of Life Sciences, National Defense Medical Center, Taipei 11490, Taiwan.ORCID 0000-0003-4302-8196
National Defense Medical Center · TWEn Chu Kong Hospital · TWTri-Service General Hospital · TWNational Health Research Institutes · TW

Funding

Ministry of National Defense-Medical Affairs Bureau, Taiwan MAB-108-001Ministry of National Defense-Medical Affairs Bureau, Taiwan MAB-108-004Ministry of National Defense-Medical Affairs Bureau, Taiwan MAB-109-049Ministry of National Defense-Medical Affairs Bureau, Taiwan MND-MAB-C-11104-111014Ministry of Science and Technology, Taiwan MOST 108-2314-B-385-001Ministry of Science and Technology, Taiwan MOST 108-2320-B-016-006-MY3
6 · The paper itself

Abstract

Type 1 diabetes mellitus (T1D) results from the destruction of insulin-producing β cells in the islet of the pancreas by lymphocytes. Non-obese diabetic (NOD) mouse is an animal model frequently used for this disease. It has been considered that T1D is a T cell-mediated autoimmune disease. Both CD4+ and CD8+ T cells are highly responsible for the destruction of β cells within the pancreatic islets of Langerhans. Previous studies have revealed that regulatory T (Treg) cells play a critical role in the homeostasis of the immune system as well as immune tolerance to autoantigens, thereby preventing autoimmunity. Valproic acid (VPA), a branched short-chain fatty acid, is widely used as an antiepileptic drug and a mood stabilizer. Previous reports have demonstrated that VPA treatment decreases the incidence and severity of collagen-induced arthritis and experimental autoimmune neuritis by increasing the population of Treg cells in these mouse disease models. Given the effect of VPA in the induction of Treg cells' population, we evaluated the therapeutic potential and the protective mechanism of VPA treatment in the suppression of graft autoimmune rejection and immune recurrence in syngeneic or allogenic islet transplantation mouse models. In our study, we found that the treatment of VPA increased the expression of forkhead box P3 (FOXP3), which is a critical transcription factor that controls Treg cells' development and function. Our data revealed that 400 mg/kg VPA treatment in recipients effectively prolonged the survival of syngeneic and allogenic islet grafts. The percentage of Treg cells in splenocytes increased in VPA-treated recipients. We also proved that adoptive transfer of VPA-induced Tregs to the transplanted recipients effectively prolonged the survival of islet grafts. The results of this study provide evidence of the therapeutic potential and the underlying mechanism of VPA treatment in syngeneic islet transplantation for T1D. It also provides experimental evidence for cell therapy by adoptive transferring of in vitro VPA-induced Tregs for the suppression of autoimmune recurrence.

Indexed as

cell therapyislet transplantationregulatory T cellstype 1 diabetesValproic acid

Identifiers

PMID34067829
PMCPMC8157191
OpenAlexW3162753390

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.