ArticleScientific reports2014
Leptin induced GRP78 expression through the PI3K-mTOR pathway in neuronal cells.
Article in Scientific reports, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed, 51 citations in OpenAlex.
- Indole-3-carbinol ameliorates ER stress-mediated hyperleptinemia in western diet-fed apoEFood & nutrition research · 2026Article
- Qizhi Kebitong Formula Ameliorates Sciatic Nerve Injury in Streptozocin-induced Diabetic Mice through PERK/ATF4/CHOP Endoplasmic Reticulum Stress Signaling Pathway.Current pharmaceutical design · 2025Article
- The Mechanism of Leptin Resistance in Obesity and Therapeutic Perspective.Advances in experimental medicine and biology · 2024Review
- Soloxolone Methyl Reduces the Stimulatory Effect of Leptin on the Aggressive Phenotype of Murine Neuro2a Neuroblastoma Cells via the MAPK/ERK1/2 Pathway.Pharmaceuticals (Basel, Switzerland) · 2023Article
- Disturbance of neuron-microglia crosstalk mediated by GRP78 in Neuropsychiatric systemic lupus erythematosus mice.Journal of neuroinflammation · 2023Article
- Hydra-Elastin-like Polypeptides Increase Rapamycin Potency When Targeting Cell Surface GRP78.Biomacromolecules · 2022Article
- The diagnostic value of endoplasmic reticulum stress-related specific proteins GRP78 and CHOP in patients with sepsis: a diagnostic cohort study.Annals of translational medicine · 2022Article
- Review
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- Inflammatory-driven NK cell maturation and its impact on pathology.Frontiers in immunology · 2022Review
- Review
- Hydrogen sulfide inhibits endoplasmic reticulum stress through the GRP78/mTOR pathway in rat chondrocytes subjected to oxidative stress.International journal of molecular medicine · 2021Article
- Expression of HYOU1 via Reciprocal Crosstalk between NSCLC Cells and HUVECs Control Cancer Progression and Chemoresistance in Tumor Spheroids.Molecules and cells · 2021Article
- Article
- The Diagnostic and Therapeutic Role of Leptin and Its Receptor ObR in Glioblastoma Multiforme.Cancers · 2020Review
- Granule Cell Ensembles in Mouse Dentate Gyrus Rapidly Upregulate the Plasticity-Related Protein Synaptopodin after Exploration Behavior.Cerebral cortex (New York, N.Y. : 1991) · 2020Article
- The etiological role of endoplasmic reticulum stress in acute lung injury-related right ventricular dysfunction in a rat model.American journal of translational research · 2020Article
- Stressed: The Unfolded Protein Response in T Cell Development, Activation, and Function.International journal of molecular sciences · 2019Review
- Leptin Signaling in the Control of Metabolism and Appetite: Lessons from Animal Models.Journal of molecular neuroscience : MN · 2018Review
- Leptin in depression: a potential therapeutic target.Cell death & disease · 2018Review
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Leptin is a circulating hormone that plays a critical role in regulating energy expenditure and food intake. Evidence to suggest the involvement of endoplasmic reticulum (ER) stress in the development of obesity is increasing. To adapt against ER stress, cells trigger the unfolded protein response (UPR). The 78 kDa glucose-regulated protein (GRP78) is an ER chaperone that protects cells against ER stress by inducing protein folding. In the present study, we hypothesized that leptin may activate UPR and protect against ER stress associated with obesity. SH-SY5Y, a human neuroblastoma cell line stably transfected with the Ob-Rb leptin receptor (SH-SY5Y-ObRb), was treated with leptin. We demonstrated that leptin induced GRP78 expression. We then validated the mechanism responsible for the leptin-induced expression of GRP78. Interestingly, leptin-induced GRP78 expression was not dependent on IRE1-XBP1 pathway. On the other hand, the PI3K inhibitor, LY294002, and mTOR inhibitor, rapamycin, inhibited the leptin-induced expression of GRP78. These results suggested that the leptin-induced expression of GRP78 may be dependent on the PI3K-mTOR pathway. Leptin specifically induced GRP78 because the induction of the ER-apoptotic marker, CHOP, was not detected in leptin-treated cells. Therefore, leptin may upregulate the expression of GRP78, thereby protecting against ER stress associated with obesity.
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Registered trials
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.