1
|
Adhikari N, Lee WJ, Park S, Kim S, Shim WS. A phytosphingosine derivative mYG-II-6 inhibits histamine-mediated TRPV1 activation and MRGPRX2-dependent mast cell degranulation. Int Immunopharmacol 2024; 133:112113. [PMID: 38657498 DOI: 10.1016/j.intimp.2024.112113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND Phytosphingosine and its derivative are known for their skin-protective properties. While mYG-II-6, a phytosphingosine derivative, has shown anti-inflammatory and antipsoriatic effects, its potential antipruritic qualities have yet to be explored. This study aimed to investigate mYG-II-6's antipruritic properties. METHODS The calcium imaging technique was employed to investigate the activity of ion channels and receptors. Mast cell degranulation was confirmed through the β-hexosaminidase assay. Additionally, in silico molecular docking and an in vivo mouse scratching behavior test were utilized. RESULTS Using HEK293T cells transfected with H1R and TRPV1, we examined the impact of mYG-II-6 on histamine-induced intracellular calcium rise, a key signal in itch-mediating sensory neurons. Pretreatment with mYG-II-6 significantly reduced histamine-induced calcium levels and inhibited TRPV1 activity, suggesting its role in blocking the calcium influx channel. Additionally, mYG-II-6 suppressed histamine-induced calcium increase in primary cultures of mouse dorsal root ganglia, indicating its potential antipruritic effect mediated by histamine. Interestingly, mYG-II-6 exhibited inhibitory effects on human MRGPRX2, a G protein-coupled receptor involved in IgE-independent mast cell degranulation. However, it did not inhibit mouse MrgprB2, the ortholog of human MRGPRX2. Molecular docking analysis revealed that mYG-II-6 selectively interacts with the binding pocket of MRGPRX2. Importantly, mYG-II-6 suppressed histamine-induced scratching behaviors in mice. CONCLUSIONS Our findings show that mYG-II-6 can alleviate histamine-induced itch sensation through dual mechanisms. This underscores its potential as a versatile treatment for various pruritic conditions.
Collapse
Affiliation(s)
- Nisha Adhikari
- College of Pharmacy, Gachon University, Hambangmoero 191, Yeonsu-gu, Incheon 21936, Republic of Korea; Gachon Institute of Pharmaceutical Sciences, Hambangmoero 191, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Wook-Joo Lee
- College of Pharmacy, Gachon University, Hambangmoero 191, Yeonsu-gu, Incheon 21936, Republic of Korea; Gachon Institute of Pharmaceutical Sciences, Hambangmoero 191, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Soojun Park
- College of Pharmacy, Seoul National University, Seoul, Republic of Korea
| | - Sanghee Kim
- College of Pharmacy, Seoul National University, Seoul, Republic of Korea
| | - Won-Sik Shim
- College of Pharmacy, Gachon University, Hambangmoero 191, Yeonsu-gu, Incheon 21936, Republic of Korea; Gachon Institute of Pharmaceutical Sciences, Hambangmoero 191, Yeonsu-gu, Incheon 21936, Republic of Korea.
| |
Collapse
|
2
|
Su P, Li Z, Yan X, Wang B, Bai M, Li Y, Xu E. Quercetin and Kaempferol inhibit HMC-1 activation via SOCE/NFATc2 signaling and suppress hippocampal mast cell activation in lipopolysaccharide-induced depressive mice. Inflamm Res 2024:10.1007/s00011-024-01876-7. [PMID: 38587532 DOI: 10.1007/s00011-024-01876-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 04/09/2024] Open
Abstract
OBJECTIVE AND DESIGN Mast cells (MCs), as the fastest immune responders, play a critical role in the progression of neuroinflammation-related diseases, especially in depression. Quercetin (Que) and kaempferol (Kae), as two major diet-derived flavonoids, inhibit MC activation and exhibit significant antidepressant effect due to their anti-inflammatory capacity. The study aimed to explore the mechanisms of inhibitory effect of Que and Kae on MC activation, and whether Que and Kae suppress hippocampal mast cell activation in LPS-induced depressive mice. SUBJECTS AND TREATMENT In vitro assays, human mast cells (HMC-1) were pretreated with Que or Kae for 1 h, then stimulated by phorbol 12-myristate 13-acetate (PMA) and 2,5-di-t-butyl-1,4-benzohydroquinone (tBHQ) for 3 h or 12 h. In vivo assays, Que or Kae was administered by oral gavage once daily for 14 days and then lipopolysaccharide (LPS) intraperitoneally injection to induce depressive behaviors. METHODS The secretion and expression of TNF-α were determined by ELISA and Western blotting. The nuclear factor of activated T cells (NFAT) transcriptional activity was measured in HMC-1 stably expressing NFAT luciferase reporter gene. Nuclear translocation of NFATc2 was detected by nuclear protein extraction and also was fluorescently detected in HMC-1 stably expressing eGFP-NFATc2. We used Ca2+ imaging to evaluate changes of store-operated calcium entry (SOCE) in HMC-1 stably expressing fluorescent Ca2+ indicator jGCamP7s. Molecular docking was used to assess interaction between the Que or Kae and calcium release-activated calcium modulator (ORAI). The hippocampal mast cell accumulation and activation were detected by toluidine blue staining and immunohistochemistry with β-tryptase. RESULTS In vitro assays of HMC-1 activated by PtBHQ (PMA and tBHQ), Que and Kae significantly decreased expression and secretion of TNF-α. Moreover, NFAT transcriptional activity and nuclear translocation of NFATc2 were remarkably inhibited by Que and Kae. In addition, the Ca2+ influx mediated by SOCE was suppressed by Que, Kae and the YM58483 (ORAI inhibitor), respectively. Importantly, the combination of YM58483 with Que or Kae had no additive effect on the inhibition of SOCE. The molecular docking also showed that Que and Kae both exhibit high binding affinities with ORAI at the same binding site as YM58483. In vivo assays, Que and Kae significantly reversed LPS-induced depression-like behaviors in mice, and inhibited hippocampal mast cell activation in LPS-induced depressive mice. CONCLUSIONS Our results indicated that suppression of SOCE/NFATc2 pathway-mediated by ORAI channels may be the mechanism of inhibitory effect of Que and Kae on MC activation, and also suggested Que and Kae may exert the antidepressant effect through suppressing hippocampal mast cell activation.
Collapse
Affiliation(s)
- Pan Su
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China.
- Henan Key Laboratory for Modern Research On Zhongjing's Herbal Formulae, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China.
| | - Zibo Li
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China
- Henan Key Laboratory for Modern Research On Zhongjing's Herbal Formulae, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China
| | - Xiangli Yan
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China
- Henan Key Laboratory for Modern Research On Zhongjing's Herbal Formulae, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China
| | - Baoying Wang
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China
- Henan Key Laboratory for Modern Research On Zhongjing's Herbal Formulae, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China
| | - Ming Bai
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China
- Henan Key Laboratory for Modern Research On Zhongjing's Herbal Formulae, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China
| | - Yucheng Li
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China.
- Henan Key Laboratory for Modern Research On Zhongjing's Herbal Formulae, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China.
| | - Erping Xu
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China.
- Henan Key Laboratory for Modern Research On Zhongjing's Herbal Formulae, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, People's Republic of China.
| |
Collapse
|
3
|
Patel P, Wang JY, Mineroff J, Jagdeo J. Evaluation of curcumin for dermatologic conditions: a systematic review. Arch Dermatol Res 2023; 316:37. [PMID: 38085369 DOI: 10.1007/s00403-023-02754-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 08/17/2023] [Accepted: 09/16/2023] [Indexed: 12/18/2023]
Abstract
There is increasing demand for natural and sustainable products for the treatment of dermatologic conditions. This systematic review aims to critically analyze published randomized controlled trials (RCTs) and provide evidence-based recommendations on the therapeutic use of curcumin for a variety of dermatological diseases. A systematic search of published literature was performed on July 18, 2023 using PRISMA guidelines for turmeric or curcumin for the treatment of skin diseases. Clinical recommendations were made based on the Oxford Centre for Evidence-Based Medicine guidelines. We identified 18 original randomized controlled trials for use of turmeric or curcumin for psoriasis, radiation dermatitis, oral lichen planus, pruritis, vitiligo, tinea capitis, facial erythema, and scarring. Psoriasis, cesarean section scar, and pruritus received grade of recommendation B. Radiation dermatitis, oral lichen planus, vitiligo, tinea capitis, and facial redness received grade of recommendation C or D. Curcumin was demonstrated to have an excellent safety profile in all clinical trials analyzed. Further research is required to determine optimal dosing and treatment parameters of turmeric. Additional, larger, RCTs and non-RCTs should be conducted to further investigate the safety and efficacy of curcumin as a treatment option for dermatological diseases.
Collapse
Affiliation(s)
- Paras Patel
- Dermatology Service, Veterans Affairs New York Harbor Healthcare System Brooklyn Campus, Brooklyn, NY, USA
- Rowan University School of Osteopathic Medicine, Stratford, NJ, USA
| | - Jennifer Y Wang
- Dermatology Service, Veterans Affairs New York Harbor Healthcare System Brooklyn Campus, Brooklyn, NY, USA
- Department of Dermatology, State University of New York, SUNY Downstate Medical Center, 450 Clarkson Avenue, 8Th Floor, Brooklyn, NY, 11203, USA
| | - Jessica Mineroff
- Dermatology Service, Veterans Affairs New York Harbor Healthcare System Brooklyn Campus, Brooklyn, NY, USA
- Department of Dermatology, State University of New York, SUNY Downstate Medical Center, 450 Clarkson Avenue, 8Th Floor, Brooklyn, NY, 11203, USA
| | - Jared Jagdeo
- Dermatology Service, Veterans Affairs New York Harbor Healthcare System Brooklyn Campus, Brooklyn, NY, USA.
- Department of Dermatology, State University of New York, SUNY Downstate Medical Center, 450 Clarkson Avenue, 8Th Floor, Brooklyn, NY, 11203, USA.
| |
Collapse
|
4
|
Kaag S, Lorentz A. Effects of Dietary Components on Mast Cells: Possible Use as Nutraceuticals for Allergies? Cells 2023; 12:2602. [PMID: 37998337 PMCID: PMC10670325 DOI: 10.3390/cells12222602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/03/2023] [Accepted: 11/06/2023] [Indexed: 11/25/2023] Open
Abstract
Allergic diseases affect an estimated 30 percent of the world's population. Mast cells (MC) are the key effector cells of allergic reactions by releasing pro-inflammatory mediators such as histamine, lipid mediators, and cytokines/chemokines. Components of the daily diet, including certain fatty acids, amino acids, and vitamins, as well as secondary plant components, may have effects on MC and thus may be of interest as nutraceuticals for the prevention and treatment of allergies. This review summarizes the anti-inflammatory effects of dietary components on MC, including the signaling pathways involved, in in vitro and in vivo models. Butyrate, calcitriol, kaempferol, quercetin, luteolin, resveratrol, curcumin, and cinnamon extract were the most effective in suppressing the release of preformed and de novo synthesized mediators from MC or in animal models. In randomized controlled trials (RCT), vitamin D, quercetin, O-methylated epigallocatechin gallate (EGCG), resveratrol, curcumin, and cinnamon extract improved symptoms of allergic rhinitis (AR) and reduced the number of inflammatory cells in patients. However, strategies to overcome the poor bioavailability of these nutrients are an important part of current research.
Collapse
Affiliation(s)
| | - Axel Lorentz
- Institute of Nutritional Medicine, University of Hohenheim, D-70593 Stuttgart, Germany
| |
Collapse
|