1
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Saha R, Majie A, Baidya R, Sarkar B. Verbascoside: comprehensive review of a phenylethanoid macromolecule and its journey from nature to bench. Inflammopharmacology 2024:10.1007/s10787-024-01555-3. [PMID: 39162902 DOI: 10.1007/s10787-024-01555-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2024] [Accepted: 08/10/2024] [Indexed: 08/21/2024]
Abstract
Polyphenolic compounds are among the most widely researched compounds for various therapeutic applications. However, naturally occurring phenylethanoid glycosides are least explored under this class of compounds. One such phenylethanoid glycoside, verbascoside (Vb), abundantly found among 200 species of 23 families, has gained recent attention due to its wide-spectrum therapeutic properties such as antioxidant, antimicrobial, anti-inflammatory, neuroprotective, cardioprotective, skin-protective, and anti-cancer. Despite having multiple therapeutic benefits, due to its large size, the compound has poor bioavailability for oral and topical applications. To meet these limitations, current research on Vb focuses on delivering it through nanoformulations. Presently, most developed formulations are liposome based for various applications, such as corneal epithelial wound healing, anti-neuropathic, anti-wrinkle, anti-hyperalgesia, atopic dermatitis, alopecia, and cutaneous wound healing. Multiple studies have confirmed the least acute and sub-acute toxicity for Vb. Few clinical studies have been performed for the therapeutic application of Vb to manage COVID-19, nephropathy, platelet aggregation, chronic primary glomerulonephritis, and acute hepatitis. Recent studies have shown the immense therapeutic potential of Vb in wound healing, dermatitis, neuroprotection, and anti-cancer activities, which creates a need for developing novel formulations for their respective uses. Long-term toxicity studies and techniques for scaling up Vb production by biotechnological approaches should be emphasized.
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Affiliation(s)
- Rajdeep Saha
- Group Polyphenol-BIT, Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, 835215, India
| | - Ankit Majie
- Group Polyphenol-BIT, Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, 835215, India
| | - Ritika Baidya
- Group Polyphenol-BIT, Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, 835215, India
| | - Biswatrish Sarkar
- Group Polyphenol-BIT, Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, 835215, India.
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2
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Zhang G, Wang L, Qu Y, Mo S, Sun X, Wang K. Inhibition of Cutaneous TRPV3 Channels by Natural Caffeic Acid for the Alleviation of Skin Inflammation. Molecules 2024; 29:3728. [PMID: 39202808 PMCID: PMC11357638 DOI: 10.3390/molecules29163728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 08/01/2024] [Accepted: 08/02/2024] [Indexed: 09/03/2024] Open
Abstract
Natural caffeic acid (CA) and its analogues have been studied for their potential applications in the treatment of various inflammatory and infectious skin diseases. However, the molecular mechanism underlying the effects of the CA remains largely unknown. Here, we report that CA and its two analogues, caffeic acid phenethyl ester (CAPE) and caffeic acid methyl caffeate (CAMC), inhibit TRPV3 currents in their concentration- and structure-dependent manners with IC50 values ranging from 102 to 410 μM. At the single-channel level, CA reduces the channel open probability and open frequency without alteration of unitary conductance. CA selectively inhibits TRPV3 relative to other subtypes of thermo-TRPs, such as TRPA1, TRPV1, TRPV4, and TRPM8. Molecular docking combined with site-specific mutagenesis reveals that a residue T636 in the Pore-loop is critical for CA binding to TRPV3. Further in vivo evaluation shows that CA significantly reverses TRPV3-mediated skin inflammation induced by skin sensitizer carvacrol. Altogether, our findings demonstrate that CA exerts its anti-inflammatory effects by selectively inhibiting TRPV3 through binding to the pocket formed by the Pore-loop and the S6. CA may serve as a lead for further modification and identification of specific TRPV3 channel inhibitors.
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Affiliation(s)
- Guoji Zhang
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, 1 Ningde Road, Qingdao 266073, China
| | - Liqin Wang
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University Medical College, 1 Ningde Road, Qingdao 266073, China
| | - Yaxuan Qu
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, 1 Ningde Road, Qingdao 266073, China
| | - Shilun Mo
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University Medical College, 1 Ningde Road, Qingdao 266073, China
| | - Xiaoying Sun
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University Medical College, 1 Ningde Road, Qingdao 266073, China
- Institute of Innovative Drugs, Qingdao University, 38 Dengzhou Road, Qingdao 266021, China
| | - Kewei Wang
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, 1 Ningde Road, Qingdao 266073, China
- Institute of Innovative Drugs, Qingdao University, 38 Dengzhou Road, Qingdao 266021, China
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3
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Xu Y, Qu Y, Zhang C, Niu C, Tang X, Sun X, Wang K. Selective inhibition of overactive warmth-sensitive Ca 2+-permeable TRPV3 channels by antispasmodic agent flopropione for alleviation of skin inflammation. J Biol Chem 2024; 300:105595. [PMID: 38154600 PMCID: PMC10828444 DOI: 10.1016/j.jbc.2023.105595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 10/29/2023] [Accepted: 12/15/2023] [Indexed: 12/30/2023] Open
Abstract
The temperature-sensitive Ca2+-permeable TRPV3 ion channel is robustly expressed in the skin keratinocytes, and its gain-of-function mutations are involved in the pathology of skin lesions. Here, we report the identification of an antispasmodic agent flopropione that alleviates skin inflammation by selective inhibition of TRPV3. In whole-cell patch clamp recordings, flopropione selectively inhibits macroscopic TRPV3 currents in a concentration-dependent manner with an IC50 value of 17.8 ± 3.5 μM. At the single-channel level, flopropione inhibits TRPV3 channel open probability without alteration of its unitary conductance. In an in vivo mouse model of skin inflammation induced by the skin sensitizer DNFB, flopropione also alleviates dorsal skin lesions and ear skin swelling. Further molecular docking combined with site-directed mutagenesis reveals that two residues E501 and I505 in the channel S2-helix are critical for flopropione-mediated inhibition of TRPV3. Taken together, our findings demonstrate that the spasmolytic drug flopropione as a selective inhibitor of TRPV3 channel not only provides a valuable tool molecule for understanding of TRPV3 channel pharmacology but also holds repurposing potential for therapy of skin disorders, such as dermatitis and pruritus.
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Affiliation(s)
- Yimei Xu
- Department of Pharmacology School of Pharmacy, Qingdao University Medical College, Qingdao, China
| | - Yaxuan Qu
- Department of Pharmacology School of Pharmacy, Qingdao University Medical College, Qingdao, China
| | - Congxiao Zhang
- Department of Pharmacology School of Pharmacy, Qingdao University Medical College, Qingdao, China.
| | - Canyang Niu
- Department of Pharmacology School of Pharmacy, Qingdao University Medical College, Qingdao, China
| | - Xiaowen Tang
- Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, Qingdao, China
| | - Xiaoying Sun
- Department of Pharmacology School of Pharmacy, Qingdao University Medical College, Qingdao, China; Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, Qingdao, China
| | - KeWei Wang
- Department of Pharmacology School of Pharmacy, Qingdao University Medical College, Qingdao, China; Institute of Innovative Drugs, Qingdao University, Qingdao, China.
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Wang L, Zhang L, Liu R, Xu Y, Tang Z, Zhang C, Zhang Z. Discovery of flavone-derivatives as the new skeleton of transient receptor potential vanilloid 3 channel antagonists. Bioorg Med Chem Lett 2024; 98:129577. [PMID: 38065293 DOI: 10.1016/j.bmcl.2023.129577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/30/2023] [Accepted: 12/04/2023] [Indexed: 12/20/2023]
Abstract
Transient receptor potential vanilloid 3 (TRPV3) channel is a temperature-sensitive and Ca2+-permeable nonselective cation channel, which is abundantly expressed in skin keratinocyte and plays an important role in skin homeostasis and repair. However, only a few TRPV3 inhibitors were reported. Few selective and potent modulators of the TRPV3 channel have hindered the progress of the investigation and clinical application. TRPV3 channel research still faces challenges and requires the new inhibitors. Flavonoids are a kind of natural compounds with various biological and pharmacological activities including anti-inflammatory and anti allergic effects, which is associated with some physiological effects mediated by TRPV3 channel. Herein, our group designed and synthesized a range of flavone derivatives, and investigated their inhibitory properties on the human TRPV3 channel by electrophysiology technique. Then, we identified a new potent TRPV3 antagonist 2d with IC50 of 0.62 μM. It also showed good selectivity on TRPV1, TRPV4, TRPA1 and TRPM8.
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Affiliation(s)
- Lili Wang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, Qingdao University, Qingdao, Shandong, China; Department of Pharmacy, Maternity and Child Health Care of Zaozhuang, Zaozhuang, Shandong, China
| | - Ling Zhang
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, Qingdao University, Qingdao, Shandong, China
| | - Rongfeng Liu
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, Qingdao University, Qingdao, Shandong, China
| | - Yimei Xu
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, Qingdao University, Qingdao, Shandong, China
| | - Zhifeng Tang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, Qingdao University, Qingdao, Shandong, China
| | - Congxiao Zhang
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, Qingdao University, Qingdao, Shandong, China.
| | - Zhongyin Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Medical College, Qingdao University, Qingdao, Shandong, China.
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Go EJ, Lee JY, Kim YH, Park CK. Site-Specific Transient Receptor Potential Channel Mechanisms and Their Characteristics for Targeted Chronic Itch Treatment. Biomolecules 2024; 14:107. [PMID: 38254707 PMCID: PMC10813675 DOI: 10.3390/biom14010107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/10/2024] [Accepted: 01/13/2024] [Indexed: 01/24/2024] Open
Abstract
Chronic itch is a debilitating condition with limited treatment options, severely affecting quality of life. The identification of pruriceptors has sparked a growing interest in the therapeutic potential of TRP channels in the context of itch. In this regard, we provided a comprehensive overview of the site-specific expression of TRP channels and their associated functions in response to a range of pruritogens. Although several potent antipruritic compounds that target specific TRP channels have been developed and have demonstrated efficacy in various chronic itch conditions through experimental means, a more thorough understanding of the potential for adverse effects or interactions with other TRP channels or GPCRs is necessary to develop novel and selective therapeutics that target TRP channels for treating chronic itch. This review focuses on the mechanism of itch associated with TRP channels at specific sites, from the skin to the sensory neuron, with the aim of suggesting specific therapeutic targets for treating this condition.
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Affiliation(s)
- Eun Jin Go
- Gachon Pain Center and Department of Physiology, College of Medicine, Gachon University, Incheon 21999, Republic of Korea;
| | - Ji Yeon Lee
- Department of Anesthesiology and Pain Medicine, Gil Medical Center, Gachon University, Incheon 21565, Republic of Korea;
| | - Yong Ho Kim
- Gachon Pain Center and Department of Physiology, College of Medicine, Gachon University, Incheon 21999, Republic of Korea;
| | - Chul-Kyu Park
- Gachon Pain Center and Department of Physiology, College of Medicine, Gachon University, Incheon 21999, Republic of Korea;
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Thi HD, Kim JY, Kim HJ, Kim WK, Kim SJ, Nam JH. Inhibition of Ca 2+-permeable TRPV3 and inflammatory cytokine release by honokiol and magnolol in human epidermal keratinocytes. Biochem Biophys Res Commun 2024; 692:149332. [PMID: 38043155 DOI: 10.1016/j.bbrc.2023.149332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 11/23/2023] [Indexed: 12/05/2023]
Abstract
Transient receptor potential vanilloid-3 (TRPV3) ion channels are prominently expressed in keratinocytes, playing a vital role in skin functions. Honokiol and magnolol (H&M) the primary bioactive constituents in Magnolia officinalis extract, demonstrate anti-inflammatory and skin-protective properties. Nevertheless, the underlying mechanism regarding their effect on Ca2+-permeable ion channels remain unclear. Our purpose in this study is to investigate the effect of H&M on TRPV3 and cytokine release in normal human epidermal keratinocytes (NHEKs), including its gain-of-function (GOF) mutants (G573S and G573C) associated with Olmstead syndrome. We performed whole-cell patch-clamp, fura-2 spectrofluorimetry to investigate channels activity, CCK-8 assay to analyze cell death and enzyme-linked immunosorbent assay to assess the cytokine release from NHEKs. H&M inhibited the TRPV3 current (ITRPV3) and cytosolic calcium increase in NHEKs, HEK293T cells overexpressing hTRPV3 and its GOF mutants. Moreover, the release of pro-inflammatory cytokines (interleukin-6 and -8) from keratinocytes stimulated by TRPV3 agonist was effectively suppressed by H&M. Our findings provide insights into the mechanism underlying the anti-inflammatory effects of H&M, highlighting their potential in treating skin diseases.
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Affiliation(s)
- Huyen Dang Thi
- Department of Physiology, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea; Channelopathy Research Center (CRC), Dongguk University College of Medicine, Gyeonggi-do, 10326, Republic of Korea
| | - Ji Yeong Kim
- Department of Physiology, Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Hyun Jong Kim
- Department of Physiology, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea; Channelopathy Research Center (CRC), Dongguk University College of Medicine, Gyeonggi-do, 10326, Republic of Korea
| | - Woo Kyung Kim
- Channelopathy Research Center (CRC), Dongguk University College of Medicine, Gyeonggi-do, 10326, Republic of Korea; Department of Internal Medicine Graduate School of Medicine, Dongguk University, Gyeonggido, 10326, Republic of Korea.
| | - Sung Joon Kim
- Department of Physiology, Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea.
| | - Joo Hyun Nam
- Department of Physiology, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea; Channelopathy Research Center (CRC), Dongguk University College of Medicine, Gyeonggi-do, 10326, Republic of Korea; Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, 02114, Massachusetts, USA.
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7
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Qu Y, Sun X, Wei N, Wang K. Inhibition of cutaneous heat-sensitive Ca 2+ -permeable transient receptor potential vanilloid 3 channels alleviates UVB-induced skin lesions in mice. FASEB J 2023; 37:e23309. [PMID: 37983944 DOI: 10.1096/fj.202301591rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/20/2023] [Accepted: 10/30/2023] [Indexed: 11/22/2023]
Abstract
Ultraviolet B (UVB) radiation causes skin injury by trigging excessive calcium influx and signaling cascades in the skin keratinocytes. The heat-sensitive Ca2+ -permeable transient receptor potential vanilloid 3 (TRPV3) channels robustly expressed in the keratinocytes play an important role in skin barrier formation and wound healing. Here, we report that inhibition of cutaneous TRPV3 alleviates UVB radiation-induced skin lesions. In mouse models of ear swelling and dorsal skin injury induced by a single exposure of weak UVB radiation, TRPV3 genes and proteins were upregulated in quantitative real-time PCR and Western blot assays. In accompany with TRPV3 upregulations, the expressions of proinflammatory cytokines tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) were also increased. Knockout of the TRPV3 gene alleviates UVB-induced ear swelling and dorsal skin inflammation. Furthermore, topical applications of two selective TRPV3 inhibitors, osthole and verbascoside, resulted in a dose-dependent attenuation of skin inflammation and lesions. Taken together, our findings demonstrate the causative role of overactive TRPV3 channel function in the development of UVB-induced skin injury. Therefore, topical inhibition of TRPV3 may hold potential therapy or prevention of UVB radiation-induced skin injury.
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Affiliation(s)
- Yaxuan Qu
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, Qingdao, China
| | - Xiaoying Sun
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, Qingdao, China
- Institute of Innovative Drugs, Qingdao University, Qingdao, China
| | - Ningning Wei
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, Qingdao, China
- Institute of Innovative Drugs, Qingdao University, Qingdao, China
| | - KeWei Wang
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, Qingdao, China
- Institute of Innovative Drugs, Qingdao University, Qingdao, China
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Kaczmarska A, Kwiatkowska D, Skrzypek KK, Kowalewski ZT, Jaworecka K, Reich A. Pathomechanism of Pruritus in Psoriasis and Atopic Dermatitis: Novel Approaches, Similarities and Differences. Int J Mol Sci 2023; 24:14734. [PMID: 37834183 PMCID: PMC10573181 DOI: 10.3390/ijms241914734] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/24/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
Pruritus is defined as an unpleasant sensation that elicits a desire to scratch. Nearly a third of the world's population may suffer from pruritus during their lifetime. This symptom is widely observed in numerous inflammatory skin diseases-e.g., approximately 70-90% of patients with psoriasis and almost every patient with atopic dermatitis suffer from pruritus. Although the pathogenesis of atopic dermatitis and psoriasis is different, the complex intricacies between several biochemical mediators, enzymes, and pathways seem to play a crucial role in both conditions. Despite the high prevalence of pruritus in the general population, the pathogenesis of this symptom in various conditions remains elusive. This review aims to summarize current knowledge about the pathogenesis of pruritus in psoriasis and atopic dermatitis. Each molecule involved in the pruritic pathway would merit a separate chapter or even an entire book, however, in the current review we have concentrated on some reports which we found crucial in the understanding of pruritus. However, the pathomechanism of pruritus is an extremely complex and intricate process. Moreover, many of these signaling pathways are currently undergoing detailed analysis or are still unexplained. As a result, it is currently difficult to take an objective view of how far we have come in elucidating the pathogenesis of pruritus in the described diseases. Nevertheless, considerable progress has been made in recent years.
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Affiliation(s)
- Agnieszka Kaczmarska
- Department of Dermatology, Institute of Medical Sciences, Medical College of Rzeszow University, 35-055 Rzeszów, Poland; (A.K.); (D.K.); (K.J.)
| | - Dominika Kwiatkowska
- Department of Dermatology, Institute of Medical Sciences, Medical College of Rzeszow University, 35-055 Rzeszów, Poland; (A.K.); (D.K.); (K.J.)
| | | | | | - Kamila Jaworecka
- Department of Dermatology, Institute of Medical Sciences, Medical College of Rzeszow University, 35-055 Rzeszów, Poland; (A.K.); (D.K.); (K.J.)
| | - Adam Reich
- Department of Dermatology, Institute of Medical Sciences, Medical College of Rzeszow University, 35-055 Rzeszów, Poland; (A.K.); (D.K.); (K.J.)
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Dang TH, Kim JY, Kim HJ, Kim BJ, Kim WK, Nam JH. Alpha-Mangostin: A Potent Inhibitor of TRPV3 and Pro-Inflammatory Cytokine Secretion in Keratinocytes. Int J Mol Sci 2023; 24:12930. [PMID: 37629111 PMCID: PMC10455244 DOI: 10.3390/ijms241612930] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/14/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
The TRPV3 calcium ion channel is vital for maintaining skin health and has been associated with various skin-related disorders. Since TRPV3 is involved in the development of skin inflammation, inhibiting TRPV3 could be a potential treatment strategy. Alpha-mangostin isolated from Garcinia mangostana L. extract exhibits diverse positive effects on skin health; however, the underlying mechanisms remain obscure. This study investigated the TRPV3-inhibitory properties of alpha-mangostin on TRPV3 hyperactive mutants associated with Olmsted syndrome and its impact on TRPV3-induced cytokine secretion and cell death. Our findings demonstrate that alpha-mangostin effectively inhibits TRPV3, with an IC50 of 0.077 ± 0.013 μM, showing inhibitory effects on both wild-type and mutant TRPV3. TRPV3 inhibition with alpha-mangostin decreased calcium influx and cytokine release, protecting cells from TRPV3-induced death. These results indicate that alpha-mangostin reduced inflammation in TRPV3-activated skin keratinocytes, suggesting that alpha-mangostin could be potentially used for improving inflammatory skin conditions such as dermatitis.
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Affiliation(s)
- Thi Huyen Dang
- Department of Physiology, Dongguk University College of Medicine, Gyeongju 38066, Republic of Korea; (T.H.D.); (H.J.K.)
- Channelopathy Research Center (CRC), Dongguk University College of Medicine, Goyang 10326, Republic of Korea
| | - Ji Yeong Kim
- Department of Physiology, Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul 03080, Republic of Korea;
| | - Hyun Jong Kim
- Department of Physiology, Dongguk University College of Medicine, Gyeongju 38066, Republic of Korea; (T.H.D.); (H.J.K.)
- Channelopathy Research Center (CRC), Dongguk University College of Medicine, Goyang 10326, Republic of Korea
| | - Byung Joo Kim
- Department of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan 50612, Republic of Korea;
| | - Woo Kyung Kim
- Department of Physiology, Dongguk University College of Medicine, Gyeongju 38066, Republic of Korea; (T.H.D.); (H.J.K.)
- Channelopathy Research Center (CRC), Dongguk University College of Medicine, Goyang 10326, Republic of Korea
- Department of Internal Medicine Graduate School of Medicine, Dongguk University, Goyang 10326, Republic of Korea
| | - Joo Hyun Nam
- Department of Physiology, Dongguk University College of Medicine, Gyeongju 38066, Republic of Korea; (T.H.D.); (H.J.K.)
- Channelopathy Research Center (CRC), Dongguk University College of Medicine, Goyang 10326, Republic of Korea
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Kalinovskii AP, Utkina LL, Korolkova YV, Andreev YA. TRPV3 Ion Channel: From Gene to Pharmacology. Int J Mol Sci 2023; 24:ijms24108601. [PMID: 37239947 DOI: 10.3390/ijms24108601] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/07/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Transient receptor potential vanilloid subtype 3 (TRPV3) is an ion channel with a sensory function that is most abundantly expressed in keratinocytes and peripheral neurons. TRPV3 plays a role in Ca2+ homeostasis due to non-selective ionic conductivity and participates in signaling pathways associated with itch, dermatitis, hair growth, and skin regeneration. TRPV3 is a marker of pathological dysfunctions, and its expression is increased in conditions of injury and inflammation. There are also pathogenic mutant forms of the channel associated with genetic diseases. TRPV3 is considered as a potential therapeutic target of pain and itch, but there is a rather limited range of natural and synthetic ligands for this channel, most of which do not have high affinity and selectivity. In this review, we discuss the progress in the understanding of the evolution, structure, and pharmacology of TRPV3 in the context of the channel's function in normal and pathological states.
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Affiliation(s)
- Aleksandr P Kalinovskii
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (IBCh RAS), 16/10 Miklukho-Maklay Str., 117997 Moscow, Russia
| | - Lyubov L Utkina
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Trbetskaya Str. 8, Bld. 2, 119991 Moscow, Russia
| | - Yuliya V Korolkova
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (IBCh RAS), 16/10 Miklukho-Maklay Str., 117997 Moscow, Russia
| | - Yaroslav A Andreev
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (IBCh RAS), 16/10 Miklukho-Maklay Str., 117997 Moscow, Russia
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Trbetskaya Str. 8, Bld. 2, 119991 Moscow, Russia
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11
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TRPV3: Structure, Diseases and Modulators. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020774. [PMID: 36677834 PMCID: PMC9865980 DOI: 10.3390/molecules28020774] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 01/04/2023] [Accepted: 01/08/2023] [Indexed: 01/15/2023]
Abstract
Transient receptor potential vanillin 3 (TRPV3) is a member of the transient receptor potential (TRP) superfamily. As a Ca2+-permeable nonselective cation channel, TRPV3 can recognize thermal stimulation (31-39 °C), and it plays an important regulatory role in temperature perception, pain transduction, skin physiology, inflammation, cancer and other diseases. TRPV3 is not only activated by the changes in the temperature, but it also can be activated by a variety of chemical and physical stimuli. Selective TRPV3 agonists and antagonists with regulatory effects and the physiological functions for clinical application are highly demanded. In recent years, significant progress has been made in the study of TRPV3, but there is still a lack of modulators with a strong affinity and excellent selectivity. This paper reviews the functional characteristics of TRPV3 in terms of the structure, diseases and the research on TRPV3 modulators.
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12
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Transient Receptor Potential Channels and Itch. Int J Mol Sci 2022; 24:ijms24010420. [PMID: 36613861 PMCID: PMC9820407 DOI: 10.3390/ijms24010420] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
Transient Receptor Potential (TRP) channels are multifunctional sensory molecules that are abundant in the skin and are involved in the sensory pathways of itch, pain, and inflammation. In this review article, we explore the complex physiology of different TRP channels, their role in modulating itch sensation, and their contributions to the pathophysiology of acute and chronic itch conditions. We also cover small molecule and topical TRP channel agents that are emerging as potential anti-pruritic treatments; some of which have shown great promise, with a few treatments advancing into clinical trials-namely, TRPV1, TRPV3, TRPA1, and TRPM8 targets. Lastly, we touch on possible ethnic differences in TRP channel genetic polymorphisms and how this may affect treatment response to TRP channel targets. Further controlled studies on the safety and efficacy of these emerging treatments is needed before clinical use.
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TRPV3 and Itch: The Role of TRPV3 in Chronic Pruritus according to Clinical and Experimental Evidence. Int J Mol Sci 2022; 23:ijms232314962. [PMID: 36499288 PMCID: PMC9737326 DOI: 10.3390/ijms232314962] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/25/2022] [Accepted: 11/25/2022] [Indexed: 12/02/2022] Open
Abstract
Itching is a sensory phenomenon characterized by an unpleasant sensation that makes you want to scratch the skin, and chronic itching diminishes the quality of life. In recent studies, multiple transient receptor potential (TRP) channels present in keratinocytes or nerve endings have been shown to engage in the propagation of itch signals in chronic dermatological or pruritic conditions, such as atopic dermatitis (AD) and psoriasis (PS). TRPV3, a member of the TRP family, is highly expressed in the epidermal keratinocytes. Normal TRPV3 signaling is essential for maintaining epidermal barrier homeostasis. In recent decades, many studies have suggested that TRPV3 contributes to detecting pruritus signals. Gain-of-function mutations in TRPV3 in mice and humans are characterized by severe itching, hyperkeratosis, and elevated total IgE levels. These studies suggest that TRPV3 is an important channel for skin itching. Preclinical studies have provided evidence to support the development of TRPV3 antagonists for treating inflammatory skin conditions, itchiness, and pain. This review explores the role of TRPV3 in chronic pruritus, collating clinical and experimental evidence. We also discuss underlying cellular and molecular mechanisms and explore the potential of TRPV3 antagonists as therapeutic agents.
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Xiao Y, Ren Q, Wu L. The pharmacokinetic property and pharmacological activity of acteoside: A review. Biomed Pharmacother 2022; 153:113296. [PMID: 35724511 PMCID: PMC9212779 DOI: 10.1016/j.biopha.2022.113296] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/06/2022] [Accepted: 06/13/2022] [Indexed: 11/09/2022] Open
Abstract
Acteoside (AC), a phenylpropanoid glycoside isolated from many dicotyledonous plants, has been demonstrated various pharmacological activities, including anti-oxidation, anti-inflammation, anti-cancer, neuroprotection, cardiovascular protection, anti-diabetes, bone and cartilage protection, hepatoprotection, and anti-microorganism. However, AC has a poor bioavailability, which can be potentially improved by different strategies. The health-promoting characteristics of AC can be attributed to its mediation in many signaling pathways, such as MAPK, NF-κB, PI3K/AKT, TGFβ/Smad, and AMPK/mTOR. Interestingly, docking simulation study indicates that AC can be an effective candidate to inhibit the activity of SARS-CoV2 main protease and protect against COVID-19. Many clinical trials for AC have been investigated, and it shows great potentials in drug development.
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Affiliation(s)
- Yaosheng Xiao
- Department of Orthopaetics, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China
| | - Qun Ren
- College of Pharmacy, Gannan Medical University, Ganzhou 341000, China
| | - Longhuo Wu
- College of Pharmacy, Gannan Medical University, Ganzhou 341000, China.
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Qi H, Shi Y, Wu H, Niu C, Sun X, Wang K. Inhibition of temperature-sensitive TRPV3 channel by two natural isochlorogenic acid isomers for alleviation of dermatitis and chronic pruritus. Acta Pharm Sin B 2022; 12:723-734. [PMID: 35256942 PMCID: PMC8897028 DOI: 10.1016/j.apsb.2021.08.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 07/13/2021] [Accepted: 07/30/2021] [Indexed: 12/13/2022] Open
Abstract
Genetic gain-of-function mutations of warm temperature-sensitive transient receptor potential vanilloid 3 (TRPV3) channel cause Olmsted syndrome characterized by severe itching and keratoderma, indicating that pharmacological inhibition of TRPV3 may hold promise for therapy of chronic pruritus and skin diseases. However, currently available TRPV3 tool inhibitors are either nonselective or less potent, thus impeding the validation of TRPV3 as therapeutic target. Using whole-cell patch-clamp and single-channel recordings, we report the identification of two natural dicaffeoylquinic acid isomers isochlorogenic acid A (IAA) and isochlorogenic acid B (IAB) that selectively inhibit TRPV3 currents with IC50 values of 2.7 ± 1.3 and 0.9 ± 0.3 μmol/L, respectively, and reduce the channel open probability to 3.7 ± 1.2% and 3.2 ± 1.1% from 26.9 ± 5.5%, respectively. In vivo evaluation confirms that both IAA and IAB significantly reverse the ear swelling of dermatitis and chronic pruritus. Furthermore, the isomer IAB is able to rescue the keratinocyte death induced by TRPV3 agonist carvacrol. Molecular docking combined with site-directed mutations reveals two residues T636 and F666 critical for the binding of the two isomers. Taken together, our identification of isochlorogenic acids A and B that act as specific TRPV3 channel inhibitors and gating modifiers not only provides an essential pharmacological tool for further investigation of the channel pharmacology and pathology, but also holds developmental potential for treatment of dermatitis and chronic pruritus.
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Key Words
- 2-APB, 2-aminoethoxydiphenyl borate
- AITC, allyl isothiocyanate
- Chronic pruritus
- DMEM, Dulbecco's modified Eagle's medium
- Dermatitis
- Dicaffeoylquinic acid
- Ear swelling
- Gate modifier
- HEK293, human embryonic kidney 293
- HaCaT, human immortalized nontumorigenic keratinocyte
- IAA, isochlorogenic acid A
- IAB, isochlorogenic acid B
- OS, Olmsted syndrome
- Olmsted syndrome
- RR, ruthenium red
- TRP, transient receptor potential
- TRPV3
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Vasas N, Pénzes Z, Kistamás K, Nánási PP, Molnár S, Szegedi A, Szöllősi AG, Bíró T. Transient Receptor Potential Vanilloid 3 Expression Is Increased In Non-Lesional Skin Of Atopic Dermatitis Patients. Exp Dermatol 2022; 31:807-813. [PMID: 35038353 PMCID: PMC9303285 DOI: 10.1111/exd.14530] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 01/04/2022] [Accepted: 01/11/2022] [Indexed: 11/30/2022]
Abstract
TRPV3 (transient receptor potential vanilloid 3) is a pro-inflammatory ion channel mostly expressed by keratinocytes of the human skin. Previous studies have shown that the expression of TRPV3 is markedly upregulated in the lesional epidermis of atopic dermatitis (AD) patients suggesting a potential pathogenetic role of the ion channel in the disease. In the current study, we aimed at defining the molecular and functional expression of TRPV3 in non-lesional skin of AD patients as previous studies implicated that healthy-appearing skin in AD are markedly distinct from normal skin with respect to terminal differentiation and certain immune function abnormalities. By using multiple, complementary immunolabeling and RT-qPCR technologies on full-thickness and epidermal shave biopsy samples from AD patients (lesional, non-lesional) and healthy volunteers, we provide the first evidence that the expression of TRPV3 is markedly upregulated in non-lesional human AD epidermis, similar to lesional AD samples. Of further importance, by using the patch-clamp method on cultured healthy and non-lesional AD keratinocytes, we also show that this upregulation is functional as determined by the significantly augmented TRPV3-specific ion current (induced by agonists) on cultured non-lesional AD keratinocytes when compared to healthy ones.
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Affiliation(s)
- Nikolett Vasas
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,University of Debrecen, Doctoral School of Molecular Medicine, Debrecen, Hungary
| | - Zsófia Pénzes
- University of Debrecen, Doctoral School of Molecular Medicine, Debrecen, Hungary.,Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Kornél Kistamás
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Péter Pál Nánási
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Szabolcs Molnár
- Institute of Obstetrics and Gynecology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Andrea Szegedi
- Department of Dermatology, Faculty of Medicine, University of Debrecen
| | - Attila Gábor Szöllősi
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Tamás Bíró
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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Fatima M, Slade H, Horwitz L, Shi A, Liu J, McKinstry D, Villani T, Xu H, Duan B. Abnormal Somatosensory Behaviors Associated With a Gain-of-Function Mutation in TRPV3 Channels. Front Mol Neurosci 2022; 14:790435. [PMID: 35058747 PMCID: PMC8764439 DOI: 10.3389/fnmol.2021.790435] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 11/30/2021] [Indexed: 11/13/2022] Open
Abstract
Thermosensitive transient receptor potential V3 (TRPV3) is a polymodal receptor implicated in nociceptive, thermoceptive, pruritoceptive, and inflammatory pathways. Reports focused on understanding the role of TRPV3 in thermoception or nociception are not conclusive. Previous studies also show that aberrant hyperactivity of TRPV3 channels results in spontaneous itch and dermatitis-like symptoms, but the resultant behavior is highly dependent on the background of the animal and the skin microbiome. To determine the function of hyperactive TRPV3 channels in somatosensory sensations, we tested different somatosensory behaviors using a genetic mouse model that carries a gain-of-function point mutation G573S in the Trpv3 gene (Trpv3G573S). Here we report that Trpv3G573S mutants show reduced perception of cold, acetone-induced cooling, punctate, and sharp mechanical pain. By contrast, locomotion, noxious heat, touch, and mechanical itch are unaffected in Trpv3G573S mice. We fail to observe any spontaneous itch responses and/or dermatitis in Trpv3G573S mutants under specific pathogen (Staphylococcus aureus)-free conditions. However, we find that the scratching events in response to various pruritogens are dramatically decreased in Trpv3G573S mice in comparison to wild-type littermates. Interestingly, we observe sensory hypoinnervation of the epidermis in Trpv3G573S mutants, which might contribute to the deficits in acute mechanical pain, cool, cold, and itch sensations.
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Wang Y, Li H, Xue C, Chen H, Xue Y, Zhao F, Zhu MX, Cao Z. TRPV3 enhances skin keratinocyte proliferation through EGFR-dependent signaling pathways. Cell Biol Toxicol 2021; 37:313-330. [PMID: 32535744 DOI: 10.1007/s10565-020-09536-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 06/02/2020] [Indexed: 02/07/2023]
Abstract
Transient receptor potential vanilloid 3 (TRPV3) is highly expressed in skin keratinocytes where it forms Ca2+-permeable nonselective cation channels to regulate various cutaneous functions. TRPV3 expression is upregulated in many skin disorders. Here, we examined how TRPV3 affects keratinocyte proliferation and investigated the underlying mechanism. Topical application of TRPV3 agonist, carvacrol, increased skin thickness in wild type (WT) mice but not in TRPV3 knockout (KO) mice. Carvacrol promoted proliferation of human keratinocytes HaCaT cells at concentrations ≤ 100 μM, but at 300 μM, it decreased cell viability, suggesting a nonmonotonic proliferative effect. Suppression of TRPV3 expression abolished carvacrol-induced cell proliferation while overexpression of TRPV3 enhanced HaCaT cell proliferation. Carvacrol also stimulated Ca2+ influx and proliferation of primary keratinocytes prepared from WT but not TRPV3 KO mice, suggesting that carvacrol-stimulated cell proliferation was dependent on TRPV3-mediated Ca2+ influx. Mechanistic investigation demonstrated that carvacrol stimulated TGFα release and increased phosphorylation levels of EGFR, PI3K, and NF-κB, effects abolished by suppression of TRPV3 expression and CaMKII inhibition. Moreover, inhibition of CaMKII, EGFR, PI3K, or NF-κB diminished carvacrol-induced cell proliferation. We conclude that while strong activation of TRPV3 may cause cell death, moderate activation of TRPV3 promotes cell proliferation in keratinocytes through Ca2+/CaMKII→TGFα/EGFR→PI3K→NF-κB signaling. Graphical abstract Headlights 1. Carvacrol induces epidermal hyperplasia and keratinocyte proliferation. 2. TRPV3 mediates carvacrol-induced epidermal hyperplasia and keratinocyte proliferation. 3. TRPV3 acts through Ca2+/CaMKII→TGFα/EGFR→PI3K→NF-κB signaling to promote keratinocyte proliferation.
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Affiliation(s)
- Yujing Wang
- State Key Laboratory of Natural Medicines and Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, Jiangsu, China
| | - Hang Li
- State Key Laboratory of Natural Medicines and Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, Jiangsu, China
| | - Chu Xue
- State Key Laboratory of Natural Medicines and Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, Jiangsu, China
| | - Hao Chen
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, 210042, Jiangsu, China
| | - Yanning Xue
- Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu, China
| | - Fang Zhao
- State Key Laboratory of Natural Medicines and Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, Jiangsu, China.
| | - Michael X Zhu
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Zhengyu Cao
- State Key Laboratory of Natural Medicines and Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, Jiangsu, China.
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