Caloric restriction: A potential approach for mitigating neuronal damage: Lesson from cellular model of Alzheimer disease DOI Creative Commons
Apoorv Sharma,

Monika Bhardwaj,

Vijay Kumar

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Дек. 17, 2024

Abstract Alzheimer’s disease is a neurodegenerative disorder and characterized by amyloid beta accumulation, synaptic dysfunction, oxidative stress, lacks effective therapies. Caloric restriction mimetics such as fisetin chlorogenic acid, natural polyphenols with antioxidant autophagy-inducing properties, show promise in mitigating age-related diseases. This study investigates their neuroprotective effects against induced toxicity differentiated human neuroblastoma SHSY5Y cells. Amyloid exposure disrupted redox homeostasis, impaired autophagy, mitochondrial exacerbating neuronal degeneration. Fisetin acid treatments reversed these deleterious restoring balance, suppressing reactive oxygen species upregulating critical enzymes like SOD1, GSR, catalase. These compounds also attenuated mitophagy via reduced PINK1 expression restored fusion Mfn2. Autophagy-related pathways were significantly modulated, evidenced increased AMPK decreased mTOR mRNA levels, alongside elevated of ATG101, ATG13, ULK1, P62 ATG5 levels. Docking studies revealed binding CGA within the pockets FKBP12 supporting interaction. Furthermore, improved integrity PSD95 synaptophysin reducing acetylcholinesterase expression. findings highlight potential ameliorating through autophagy activation, preservation, function enhancement. While this demonstrates transcriptional impact affinities caloric further translational biophysical analyses are required to elucidate mechanisms confirm therapeutic viability. research underscores agents, offering promising avenues for combating related neuropathies. Figure

Язык: Английский

Pivotal Role of mTOR in Non-Skin Manifestations of Psoriasis DOI Open Access

Ka Joo,

Claudio Karsulovic,

Milisa Sore

и другие.

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(12), С. 6778 - 6778

Опубликована: Июнь 20, 2024

Psoriasis is a chronic inflammatory condition affecting 2% of the Western population. It includes diverse manifestations influenced by genetic predisposition, environmental factors, and immune status. The sustained activation mTOR key element in psoriasis pathogenesis, leading to an uncontrolled proliferation cytokines. Furthermore, has been linked with transition from non-skin such as psoriatic arthritis cardiovascular events. While therapies targeting pro-inflammatory cytokines have shown efficacy, additional pathways may offer therapeutic potential. PI3K/Akt/mTOR pathway, known for its role cell growth, proliferation, metabolism, emerged potential target psoriasis. This review explores relevance pathophysiology, focusing on involvement cutaneous atheromatous plaque arthritis, disease. promotes keratinocyte synovial contributing formation joint inflammation. Moreover, exacerbate risk promoting cytokine production dysregulation lipid glucose metabolism. inhibition promise preclinical studies, reducing skin inflammation proliferation. mitigate modulating cholesterol metabolism attenuating atherosclerosis progression. Understanding psoriasis, disease provides insight into treatment avenues sheds light complex interplay metabolic these conditions.

Язык: Английский

Процитировано

3

Unlocking milk thistle’s anti-psoriatic potential in mice: Targeting PI3K/AKT/mTOR and KEAP1/NRF2/NF-κB pathways to modulate inflammation and oxidative stress DOI

Nada M Kamel,

Sarah S El-Sayed,

Yasmin Ahmed Mohamed El-Said

и другие.

International Immunopharmacology, Год журнала: 2024, Номер 139, С. 112781 - 112781

Опубликована: Июль 26, 2024

Язык: Английский

Процитировано

3

IL-17A Orchestrates Reactive Oxygen Species/HIF1α–Mediated Metabolic Reprogramming in Psoriasis DOI
Bhavuk Dhamija, Soumitra Marathe, Vinanti Sawant

и другие.

The Journal of Immunology, Год журнала: 2023, Номер 212(2), С. 302 - 316

Опубликована: Ноя. 29, 2023

Abstract Immune cell–derived IL-17A is one of the key pathogenic cytokines in psoriasis, an immunometabolic disorder. Although established regulator cutaneous immune cell biology, its functional and metabolic effects on nonimmune cells skin, particularly keratinocytes, have not been comprehensively explored. Using multiomics profiling systems biology–based approaches, we systematically uncover significant roles for reprogramming human primary keratinocytes (HPKs). High-throughput liquid chromatography–tandem mass spectrometry nuclear magnetic resonance spectroscopy revealed IL-17A–dependent regulation multiple HPK proteins metabolites carbohydrate lipid metabolism. Systems-level MitoCore modeling using flux-balance analysis identified IL-17A–mediated increases glycolysis, glutaminolysis, uptake, which were validated biochemical cell-based assays stable isotope-resolved metabolomics. treatment triggered downstream mitochondrial reactive oxygen species HIF1α expression resultant proliferation, consistent with observed elevation these effectors epidermis patients psoriasis. Pharmacological inhibition or reversed hyperproliferation. These results identify as important target reveal involvement pathways skin.

Язык: Английский

Процитировано

8

The link between autophagy and psoriasis DOI

Nannan Liang,

Kaiming Zhang

Acta Histochemica, Год журнала: 2024, Номер 126(4), С. 152166 - 152166

Опубликована: Апрель 30, 2024

Язык: Английский

Процитировано

2

Natural alternatives targeting psoriasis pathology and key signaling pathways: a focus on phytochemicals DOI
Ivanka K. Koycheva, Andrey S. Marchev,

Iva D. Stoykova

и другие.

Phytochemistry Reviews, Год журнала: 2023, Номер unknown

Опубликована: Июль 18, 2023

Язык: Английский

Процитировано

4

mTORC1 and mTORC2 Levels in Patients With Psoriasis DOI Creative Commons
İlayda Esna Gülsunay, İlknur Kıvanç Altunay,

Tuğba Kum

и другие.

Dermatology Practical & Conceptual, Год журнала: 2024, Номер 14(4), С. e2024266 - e2024266

Опубликована: Окт. 30, 2024

Introduction: In recent years, the role of mammalian target rapamycin (mTOR) pathway, which is one intracellular signaling pathways and known as main control pathway metabolism, in pathogenesis psoriasis has been emphasized. Objectives: We sought to investigate importance mTOR psoriasis. Methods: Forty patients with 40 healthy volunteers were included this case-control study. Serum fasting mTORC1 mTORC2 levels study groups examined by enzyme-linked immunosorbent assay. Results: significantly lower than controls (p= 0.001). A positive correlation was found between serum (p=0,001, r=0,826). Conclusion: The complexes are active signalling molecules cell, be patient psoriasis, suggesting that it may an indicator increased activation these molecules. Our opinion agents can effectively inhibit both more effective treatment

Язык: Английский

Процитировано

1

Mechanisms of autophagy and their implications in dermatological disorders DOI Creative Commons
Shibei Xue,

Yumeng Lin,

Haoran Chen

и другие.

Frontiers in Immunology, Год журнала: 2024, Номер 15

Опубликована: Ноя. 4, 2024

Autophagy is a highly conserved cellular self-digestive process that underlies the maintenance of homeostasis. classified into three types: macrophage, chaperone-mediated autophagy (CMA) and microphagy, which maintain homeostasis through different mechanisms. Altered regulation affects progression various skin diseases, including psoriasis (PA), systemic lupus erythematosus (SLE), vitiligo, atopic dermatitis (AD), alopecia areata (AA) sclerosis (SSc). In this review, we review existing literature focusing on mechanisms autophagy, namely as well roles in above six dermatological disorders order to aid further studies future.

Язык: Английский

Процитировано

1

Daturataturin A Ameliorates Psoriasis by Regulating PPAR Pathway DOI
Wei Zheng,

Hongfa Zhong,

Shanmin Yuan

и другие.

Biochemical Genetics, Год журнала: 2024, Номер 62(6), С. 4952 - 4966

Опубликована: Фев. 20, 2024

Язык: Английский

Процитировано

0

Rice Husk Silica Liquid Enhances Autophagy and Reduces Overactive Immune Responses via TLR-7 Signaling in Lupus-Prone Models DOI Open Access

Chieh Kao,

Shih‐Wei Wang, Po‐Chun Chen

и другие.

Опубликована: Авг. 27, 2024

Systemic lupus erythematosus (SLE) is a chronic autoimmune disorder characterized by widespread inflammation and multi-organ damage. Toll-like receptor 7 (TLR-7) autophagy have been implicated in SLE pathogenesis. Rice husk silica liquid (RHSL) has shown potential for modulating inflammatory responses, but its effects on not thoroughly investigated. This study aims to evaluate the impact of RHSL immune responses an vitro model SLE, focusing TLR-7 signaling, cytokine production, modulation. RAW264.7 cells human peripheral blood mononuclear (PBMCs) from healthy donors patients were used. Cells stimulated with LPS or agonists treated RHSL. Cell viability was assessed, levels (TNF-α IL-6) measured ELISA. Autophagy-related proteins (LC3II, ATG5-ATG12) analyzed Western blotting. The effect inhibition studied using 3-methyladenine (3-MA). did affect cell significantly reduced TNF-α production LPS- agonist-stimulated PBMCs. enhanced autophagy, as evidenced increased LC3II ATG5-ATG12 conjugation both patient-derived reduction attenuated 3-MA, indicating that plays role this process. also inhibited translocation phosphorylated NF-κB into nucleus, suggesting mechanism anti-inflammatory effects. exhibits immunomodulatory agent enhancing signaling pathways. These findings suggest could offer therapeutic benefits managing warrant further investigation clinical applications.

Язык: Английский

Процитировано

0

Rice Husk Silica Liquid Enhances Autophagy and Reduces Overactive Immune Responses via TLR-7 Signaling in Lupus-Prone Models DOI Open Access

Chieh Kao,

Shih‐Wei Wang, Po-Chun Chen

и другие.

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(18), С. 10133 - 10133

Опубликована: Сен. 21, 2024

Systemic lupus erythematosus (SLE) is a chronic autoimmune disorder characterized by widespread inflammation and multi-organ damage. Toll-like receptor 7 (TLR-7) autophagy have been implicated in SLE pathogenesis. Rice husk silica liquid (RHSL) has shown potential for modulating inflammatory responses, but its effects on not thoroughly investigated. This study aims to evaluate the impact of RHSL immune responses cell culture experiments, focusing TLR-7 signaling, cytokine production, modulation. RAW264.7 cells human peripheral blood mononuclear (PBMCs) from healthy donors patients were used. Cells stimulated with LPS or agonists treated RHSL. Cell viability was assessed, levels (TNF-α IL-6) measured ELISA. Autophagy-related proteins (LC3II, ATG5-ATG12) analyzed Western blotting. The effect inhibition studied using 3-methyladenine (3-MA). A concentration 100 μg/mL did affect significantly reduced TNF-α production agonist-stimulated (compared alone, 3.41 ± 0.54 vs. 6.72 0.07 folds) PBMCs 0.97 0.19 1.40 0.33 folds). enhanced autophagy, as evidenced increased LC3II (4.35 1.08 ATG5-ATG12 (7.07 1.30 conjugation both patient-derived PBMCs. reduction attenuated 3-MA, indicating that plays role this process. also inhibited translocation phosphorylated NF-κB into nucleus, suggesting mechanism anti-inflammatory effects. exhibits an immunomodulatory agent enhancing signaling pathways. These findings suggest could offer therapeutic benefits managing warrant further investigation clinical applications.

Язык: Английский

Процитировано

0