Evidence map›Paper›PMID 42667464›Full record

ArticleJournal of molecular histology2026

Schisandra chinensis polysaccharide attenuates diabetic islet cell injury by promoting autophagy via suppression of the PI3K/AKT/mTOR signaling cascade.

Xiao-Ying Zhou, Guang-Hui Zhou, Wen-Chong Li, Jun-Feng Zhang, Ming-Kui Lin, Zi-Cong Liang, Rui-Ke Liu

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Article in Journal of molecular histology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

7 authors.

Xiao-Ying ZhouDepartment of Endocrinology, The Affiliated Dongguan Songshan Lake Central Hospital, Guangdong Medical University, No.1, Xianglong Road, Dongguan, 523326, Guangdong, China.
Guang-Hui ZhouDepartment of Traditional Chinese Medicine, The Affiliated Dongguan Songshan Lake Central Hospital, Guangdong Medical University, Dongguan, China.
Wen-Chong LiDepartment of Endocrinology, The Affiliated Dongguan Songshan Lake Central Hospital, Guangdong Medical University, No.1, Xianglong Road, Dongguan, 523326, Guangdong, China.
Jun-Feng ZhangDepartment of Nursing, The Affiliated Dongguan Songshan Lake Central Hospital, Guangdong Medical University, Dongguan, China.
Ming-Kui LinDepartment of Endocrinology, The Affiliated Dongguan Songshan Lake Central Hospital, Guangdong Medical University, No.1, Xianglong Road, Dongguan, 523326, Guangdong, China.
Zi-Cong LiangThe Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Rui-Ke LiuDepartment of Endocrinology, The Affiliated Dongguan Songshan Lake Central Hospital, Guangdong Medical University, No.1, Xianglong Road, Dongguan, 523326, Guangdong, China. liuruike@hotmail.com.

Funding

Dongguan Science and Technology Bureau and Traditional Chinese Medicine Bureau of Guangdong Province 20231364Dongguan Science and Technology Bureau, Dongguan Social Science Development Programme 20231800935462Dongguan Science and Technology Development Programme 20221800906212
6 · The paper itself

Abstract

backgroundSchisandra chinensis polysaccharide (SCP) has demonstrated antidiabetic properties in previous studies; however, the mechanisms underlying its regulation of autophagy in pancreatic protection remain poorly understood. This study investigated how SCP modulates autophagic pathways to alleviate diabetic pathology.

methodsDiabetic rats were administered SCP orally, followed by histopathological and biochemical assessments of pancreatic islet function and tissue damage. Beta-TC-6 pancreatic β-cells were exposed to SCP to evaluate cellular viability, insulin secretion, and autophagic processes using immunohistochemistry, Western blotting, immunofluorescence, and transmission electron microscopy.

resultsSCP dose-dependently attenuated diabetes-associated weight loss, reduced hyperglycemia, and improved β-cell function. Histological examination revealed amelioration of pancreatic islet disorganization, diminished collagen deposition, and reduced basement membrane thickening. Mechanistically, SCP enhanced autophagic activity in pancreatic tissues and Beta-TC-6 cells by inhibiting the PI3K/AKT/mTOR signaling cascade, with high-dose SCP exhibiting efficacy comparable to that of metformin. Chloroquine co-treatment abolished these effects, confirming autophagy dependence.

conclusionThis study demonstrates that SCP alleviates diabetes by restoring β-cell function and inducing protective autophagy via the inhibition of the PI3K/AKT/mTOR pathway. These findings indicate SCP as a potential candidate for diabetes therapy.

Indexed as

AutophagyDiabetes Mellitus, ExperimentalIslets of LangerhansPhosphatidylinositol 3-KinasesPolysaccharidesProto-Oncogene Proteins c-aktSchisandraSignal TransductionTOR Serine-Threonine KinasesAnimalsCell LineHypoglycemic AgentsInsulinInsulin-Secreting CellsMaleRatsHypoglycemic AgentsInsulinPhosphatidylinositol 3-KinasesPolysaccharidesProto-Oncogene Proteins c-aktTOR Serine-Threonine KinasesAutophagyPancreatic β-cell protectionPI3K/AKT/mTOR pathwaySchisandra chinensis polysaccharideType 2 diabetes mellitus

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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.