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Slominski RM, Chen JY, Raman C, Slominski AT. Photo-neuro-immuno-endocrinology: How the ultraviolet radiation regulates the body, brain, and immune system. Proc Natl Acad Sci U S A 2024; 121:e2308374121. [PMID: 38489380 PMCID: PMC10998607 DOI: 10.1073/pnas.2308374121] [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] [Indexed: 03/17/2024] Open
Abstract
Ultraviolet radiation (UVR) is primarily recognized for its detrimental effects such as cancerogenesis, skin aging, eye damage, and autoimmune disorders. With exception of ultraviolet B (UVB) requirement in the production of vitamin D3, the positive role of UVR in modulation of homeostasis is underappreciated. Skin exposure to UVR triggers local responses secondary to the induction of chemical, hormonal, immune, and neural signals that are defined by the chromophores and extent of UVR penetration into skin compartments. These responses are not random and are coordinated by the cutaneous neuro-immuno-endocrine system, which counteracts the action of external stressors and accommodates local homeostasis to the changing environment. The UVR induces electrical, chemical, and biological signals to be sent to the brain, endocrine and immune systems, as well as other central organs, which in concert regulate body homeostasis. To achieve its central homeostatic goal, the UVR-induced signals are precisely computed locally with transmission through nerves or humoral signals release into the circulation to activate and/or modulate coordinating central centers or organs. Such modulatory effects will be dependent on UVA and UVB wavelengths. This leads to immunosuppression, the activation of brain and endocrine coordinating centers, and the modification of different organ functions. Therefore, it is imperative to understand the underlying mechanisms of UVR electromagnetic energy penetration deep into the body, with its impact on the brain and internal organs. Photo-neuro-immuno-endocrinology can offer novel therapeutic approaches in addiction and mood disorders; autoimmune, neurodegenerative, and chronic pain-generating disorders; or pathologies involving endocrine, cardiovascular, gastrointestinal, or reproductive systems.
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Affiliation(s)
- Radomir M. Slominski
- Departments of Genetics, the University of Alabama at Birmingham, Birmingham, AL35294
| | - Jake Y. Chen
- Department of Biomedical Informatics and Data Science, the University of Alabama at Birmingham, Birmingham, AL35294
- Comprehensive Cancer Center, Cancer Chemoprevention Program, University of Alabama at Birmingham, Birmingham, AL35294
| | - Chander Raman
- Department of Dermatology, the University of Alabama at Birmingham, Birmingham, AL35294
| | - Andrzej T. Slominski
- Comprehensive Cancer Center, Cancer Chemoprevention Program, University of Alabama at Birmingham, Birmingham, AL35294
- Department of Dermatology, the University of Alabama at Birmingham, Birmingham, AL35294
- Veteran Administration Medical Center, Birmingham, AL35294
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2
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Carpenter MA, Thyagarajan A, Owens M, Annamraju R, Borchers CB, Travers JB, Kemp MG. The acid sphingomyelinase inhibitor imipramine enhances the release of UV photoproduct-containing DNA in small extracellular vesicles in UVB-irradiated human skin. Photochem Photobiol 2024. [PMID: 38433456 DOI: 10.1111/php.13932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/22/2024] [Accepted: 02/24/2024] [Indexed: 03/05/2024]
Abstract
Nucleic acids, lipids, and other cell components can be found within different types of extracellular vesicles (EVs), which include apoptotic bodies (ABs), large extracellular vesicles (LEVs), and small extracellular vesicles (SEVs). Release of LEVs from cells can be reduced by genetic or pharmacological inhibition of the enzyme acid sphinogomyelinase (aSMase), and indeed several studies have demonstrated a role for the clinically approved aSMase inhibitor imipramine in blocking LEV release, including in response to UVB exposure. Given that exposure of keratinocytes to UVB radiation results in the generation of UVR photoproducts in DNA that can subsequently be found in association with ABs and SEVs, we examined how imipramine impacts the release of extracellular DNA containing UVR photoproducts at an early time point after UVR exposure. Using several different model systems, including cultured keratinocytes in vitro, discarded human surgical skin ex vivo, and skin biopsies obtained from treated human subjects, these pilot studies suggest that imipramine treatment stimulates the release of CPD-containing, SEV-associated DNA. These surprising findings indicate that LEV and SEV generation pathways could be linked in UVB-irradiated cells and that imipramine may exacerbate the systemic effects of extracellular UVR-damaged DNA throughout the body.
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Affiliation(s)
- M Alexandra Carpenter
- Department of Pharmacology and Toxicology, Wright State University Boonshoft School of Medicine, Dayton, Ohio, USA
| | - Anita Thyagarajan
- Department of Pharmacology and Toxicology, Wright State University Boonshoft School of Medicine, Dayton, Ohio, USA
| | - Madison Owens
- Department of Pharmacology and Toxicology, Wright State University Boonshoft School of Medicine, Dayton, Ohio, USA
| | - Risha Annamraju
- Department of Pharmacology and Toxicology, Wright State University Boonshoft School of Medicine, Dayton, Ohio, USA
| | - Christina B Borchers
- Department of Pharmacology and Toxicology, Wright State University Boonshoft School of Medicine, Dayton, Ohio, USA
| | - Jeffrey B Travers
- Department of Pharmacology and Toxicology, Wright State University Boonshoft School of Medicine, Dayton, Ohio, USA
- Department of Dermatology, Wright State University Boonshoft School of Medicine, Dayton, Ohio, USA
- Dayton VA Medical Center, Dayton, Ohio, USA
| | - Michael G Kemp
- Department of Pharmacology and Toxicology, Wright State University Boonshoft School of Medicine, Dayton, Ohio, USA
- Dayton VA Medical Center, Dayton, Ohio, USA
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3
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Zeng B, Li Y, Xia J, Xiao Y, Khan N, Jiang B, Liang Y, Duan L. Micro Trojan horses: Engineering extracellular vesicles crossing biological barriers for drug delivery. Bioeng Transl Med 2024; 9:e10623. [PMID: 38435823 PMCID: PMC10905561 DOI: 10.1002/btm2.10623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 10/05/2023] [Accepted: 11/09/2023] [Indexed: 03/05/2024] Open
Abstract
The biological barriers of the body, such as the blood-brain, placental, intestinal, skin, and air-blood, protect against invading viruses and bacteria while providing necessary physical support. However, these barriers also hinder the delivery of drugs to target tissues, reducing their therapeutic efficacy. Extracellular vesicles (EVs), nanostructures with a diameter ranging from 30 nm to 10 μm secreted by cells, offer a potential solution to this challenge. These natural vesicles can effectively pass through various biological barriers, facilitating intercellular communication. As a result, artificially engineered EVs that mimic or are superior to the natural ones have emerged as a promising drug delivery vehicle, capable of delivering drugs to almost any body part to treat various diseases. This review first provides an overview of the formation and cross-species uptake of natural EVs from different organisms, including animals, plants, and bacteria. Later, it explores the current clinical applications, perspectives, and challenges associated with using engineered EVs as a drug delivery platform. Finally, it aims to inspire further research to help bioengineered EVs effectively cross biological barriers to treat diseases.
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Affiliation(s)
- Bin Zeng
- Graduate SchoolGuangxi University of Chinese MedicineNanningGuangxiChina
- Department of Orthopedics, Shenzhen Intelligent Orthopaedics and Biomedical Innovation Platform, Guangdong Artificial Intelligence Biomedical Innovation Platform, Shenzhen Second People's Hospitalthe First Affiliated Hospital of Shenzhen UniversityShenzhenGuangdongChina
| | - Ying Li
- Department of Orthopedics, Shenzhen Intelligent Orthopaedics and Biomedical Innovation Platform, Guangdong Artificial Intelligence Biomedical Innovation Platform, Shenzhen Second People's Hospitalthe First Affiliated Hospital of Shenzhen UniversityShenzhenGuangdongChina
| | - Jiang Xia
- Department of ChemistryThe Chinese University of Hong Kong, ShatinHong Kong SARChina
| | - Yin Xiao
- School of Medicine and Dentistry & Menzies Health Institute Queensland, SouthportGold CoastQueenslandAustralia
| | - Nawaz Khan
- Department of Orthopedics, Shenzhen Intelligent Orthopaedics and Biomedical Innovation Platform, Guangdong Artificial Intelligence Biomedical Innovation Platform, Shenzhen Second People's Hospitalthe First Affiliated Hospital of Shenzhen UniversityShenzhenGuangdongChina
| | - Bin Jiang
- Graduate SchoolGuangxi University of Chinese MedicineNanningGuangxiChina
- R&D Division, Eureka Biotech Inc, PhiladelphiaPennsylvaniaUSA
| | - Yujie Liang
- Department of Child and Adolescent Psychiatry, Shenzhen Kangning HospitalShenzhen Mental Health Center, Shenzhen Key Laboratory for Psychological Healthcare and Shenzhen Institute of Mental HealthShenzhenGuangdongChina
| | - Li Duan
- Graduate SchoolGuangxi University of Chinese MedicineNanningGuangxiChina
- Department of Orthopedics, Shenzhen Intelligent Orthopaedics and Biomedical Innovation Platform, Guangdong Artificial Intelligence Biomedical Innovation Platform, Shenzhen Second People's Hospitalthe First Affiliated Hospital of Shenzhen UniversityShenzhenGuangdongChina
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4
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Marrapodi R, Bellei B. The Keratinocyte in the Picture Cutaneous Melanoma Microenvironment. Cancers (Basel) 2024; 16:913. [PMID: 38473275 DOI: 10.3390/cancers16050913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/08/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
Melanoma progression is a multistep evolution from a common melanocytic nevus through a radial superficial growth phase, the invasive vertical growth phase finally leading to metastatic dissemination into distant organs. Melanoma aggressiveness largely depends on the propensity to metastasize, which means the capacity to escape from the physiological microenvironment since tissue damage due to primary melanoma lesions is generally modest. Physiologically, epidermal melanocytes are attached to the basement membrane, and their adhesion/migration is under the control of surrounding keratinocytes. Thus, the epidermal compartment represents the first microenvironment responsible for melanoma spread. This complex process involves cell-cell contact and a broad range of secreted bioactive molecules. Invasion, or at the beginning of the microinvasion, implies the breakdown of the dermo-epidermal basement membrane followed by the migration of neoplastic melanocytic cells in the superficial papillary dermis. Correspondingly, several experimental evidences documented the structural and functional rearrangement of the entire tissue surrounding neoplasm that in some way reflects the atypia of tumor cells. Lastly, the microenvironment must support the proliferation and survival of melanocytes outside the normal epidermal-melanin units. This task presumably is mostly delegated to fibroblasts and ultimately to the self-autonomous capacity of melanoma cells. This review will discuss remodeling that occurs in the epidermis during melanoma formation as well as skin changes that occur independently of melanocytic hyperproliferation having possible pro-tumoral features.
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Affiliation(s)
- Ramona Marrapodi
- Laboratory of Cutaneous Physiopathology and Integrated Center of Metabolomics Research, San Gallicano Dermatological Institute, IRCCS, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Barbara Bellei
- Laboratory of Cutaneous Physiopathology and Integrated Center of Metabolomics Research, San Gallicano Dermatological Institute, IRCCS, Via Elio Chianesi 53, 00144 Rome, Italy
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5
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Flemming JP, Wermuth PJ, Mahoney MG. Extracellular Vesicles in the Skin Microenvironment: Emerging Roles as Biomarkers and Therapeutic Tools in Dermatologic Health and Disease. J Invest Dermatol 2024; 144:225-233. [PMID: 37877931 DOI: 10.1016/j.jid.2023.08.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/23/2023] [Accepted: 08/24/2023] [Indexed: 10/26/2023]
Abstract
The recent discovery of extracellular vesicles (EVs) carrying cargo consisting of various bioactive macromolecules that can modulate the phenotype of recipient target cells has revealed an important new mechanism through which cells can signal their neighbors and regulate their microenvironment. Because EV cargo and composition correlate with the physiologic state of their cell of origin, investigations into the role of EVs in disease pathogenesis and progression have become an area of intense study. The physiologic and pathologic effects of EVs on their microenvironment are incredibly diverse and include the modulation of molecular pathways involved in angiogenesis, inflammation, wound healing, epithelial-mesenchymal transition, proliferation, and immune escape. This review examines recent studies on the role of EVs in diseases of the skin and on how differences in EV composition and cargo can alter cell states and the surrounding microenvironment. We also discuss the potential clinical applications of EVs in skin disease diagnosis and management. We examine their value as an easily isolated source of biomarkers to predict disease prognosis or to monitor patient response to treatment. Given the ability of EVs to modulate disease-specific signaling pathways, we also assess their potential to serve as novel personalized precision therapeutic tools for dermatological diseases.
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Affiliation(s)
- Joseph P Flemming
- Department of Dermatology & Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
| | - Peter J Wermuth
- Department of Dermatology & Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
| | - Mỹ G Mahoney
- Department of Dermatology & Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA; Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA; Department of Otolaryngology - Head & Neck Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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6
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Christian L, Manjrekar P, Henkels KM, Rapp CM, Annamraju R, Lohade RP, Singh S, Carpenter MA, Khan S, Kemp MG, Chen Y, Sahu RP, Travers JB. Evidence for the involvement of keratinocyte-derived microvesicle particles in the photosensitivity associated with xeroderma pigmentosum type A deficiency. Photochem Photobiol 2024. [PMID: 38287748 DOI: 10.1111/php.13915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/16/2024] [Accepted: 01/16/2024] [Indexed: 01/31/2024]
Abstract
Photosensitivity can be due to numerous causes. The photosensitivity associated with deficiency of xeroderma pigmentosum type A (XPA) has been previously shown to be associated with excess levels of the lipid mediator platelet-activating factor (PAF) generated by the keratinocyte. As PAF has been reported to trigger the production of subcellular microvesicle particles (MVP) due to the enzyme acid sphingomyelinase (aSMase), the goal of these studies was to discern if PAF and aSMase could serve as therapeutic targets for the XPA deficiency photosensitivity. HaCaT keratinocytes lacking XPA generated greater levels of MVP in comparison to control cells. Mice deficient in XPA also generated enhanced MVP levels in skin and in plasma in response to UV radiation. Use of a genetic strategy with mice deficient in both XPA and PAF receptors revealed that these mice generated less MVP release as well as decreased skin erythema and cytokine release compared to XPA knockout mice alone. Finally, the aSMase inhibitor imipramine blocked UV-induced MVP release in HaCaT keratinocytes, as well as XPA knockout mice. These studies support the concept that the photosensitivity associated with XPA involves PAF- and aSMase-mediated MVP release and provides a potential pharmacologic target in treating this form of photosensitivity.
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Affiliation(s)
- Lea Christian
- Department of Pharmacology & Toxicology, Wright State University, Dayton, Ohio, USA
| | - Pranali Manjrekar
- Department of Pharmacology & Toxicology, Wright State University, Dayton, Ohio, USA
| | - Karen M Henkels
- Department of Pharmacology & Toxicology, Wright State University, Dayton, Ohio, USA
| | - Christine M Rapp
- Department of Pharmacology & Toxicology, Wright State University, Dayton, Ohio, USA
| | - Risha Annamraju
- Department of Pharmacology & Toxicology, Wright State University, Dayton, Ohio, USA
| | - Rushabh P Lohade
- Department of Pharmacology & Toxicology, Wright State University, Dayton, Ohio, USA
| | - Shikshita Singh
- Department of Pharmacology & Toxicology, Wright State University, Dayton, Ohio, USA
| | | | - Saman Khan
- Department of Pharmacology & Toxicology, Wright State University, Dayton, Ohio, USA
| | - Michael G Kemp
- Department of Pharmacology & Toxicology, Wright State University, Dayton, Ohio, USA
- The Dayton V.A. Medical Center, Dayton, Ohio, USA
| | - Yanfang Chen
- Department of Pharmacology & Toxicology, Wright State University, Dayton, Ohio, USA
| | - Ravi P Sahu
- Department of Pharmacology & Toxicology, Wright State University, Dayton, Ohio, USA
| | - Jeffrey B Travers
- Department of Pharmacology & Toxicology, Wright State University, Dayton, Ohio, USA
- The Dayton V.A. Medical Center, Dayton, Ohio, USA
- Department of Dermatology, Wright State University, Dayton, Ohio, USA
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7
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Fisher GW, Travers JB, Rohan CA. Rosacea pathogenesis and therapeutics: current treatments and a look at future targets. Front Med (Lausanne) 2023; 10:1292722. [PMID: 38193038 PMCID: PMC10773789 DOI: 10.3389/fmed.2023.1292722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 11/28/2023] [Indexed: 01/10/2024] Open
Abstract
Rosacea is a chronic inflammatory skin condition associated with a significant health and economic burden from costs and loss of productivity due to seeking medical treatment. The disease encompasses multiple phenotypic manifestations involving a complex and multi-variate pathogenesis. Although the pathophysiology of rosacea is not completely understood, ongoing research is continually elucidating its mechanisms. In this review, current concepts of rosacea pathogenesis will be addressed which involve skin barrier and permeability dysfunction, the innate and adaptive immune systems, and the neurovascular system. More specifically, the cathelicidin pathway, transient potential receptor channels, mast cells, and the NLRP3 inflammasome pathway are various targets of current pharmacologic regimens. Future therapies may seek different mechanisms to act on current treatment targets, like the potential use of JAK/STAT inhibitors in ameliorating skin barrier dysfunction or TLR antagonists in alleviating cathelicidin mediated inflammation. Other potential treatments aim for entirely different molecular targets such as microvesicle particle mediated local and systemic inflammation. Ultimately rosacea is associated with a significant health and economic burden which warrants deeper research into its pathogenesis and resultant new treatment discovery.
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Affiliation(s)
- Garrett W. Fisher
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
| | - Jeffrey B. Travers
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- Dermatology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- Department of Medicine (Dermatology), Dayton Veterans Administration Medical Center, Dayton, OH, United States
| | - Craig A. Rohan
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- Dermatology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- Department of Medicine (Dermatology), Dayton Veterans Administration Medical Center, Dayton, OH, United States
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8
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Oyebanji OA, Brewer C, Bayless S, Schmeusser B, Corbin DA, Sulentic CEW, Sherwin CMT, Chen Y, Rapp CM, Cates EE, Long Y, Travers JB, Rohan CA. Topical Photodynamic Therapy Generates Bioactive Microvesicle Particles: Evidence for a Pathway Involved in Immunosuppressive Effects. J Invest Dermatol 2023; 143:1279-1288.e9. [PMID: 36708950 PMCID: PMC10293022 DOI: 10.1016/j.jid.2022.12.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 01/26/2023]
Abstract
Although effective in treating actinic damage, topical photodynamic therapy (PDT) has been shown to be immunosuppressive through unknown mechanisms, which could potentially limit its effectiveness. Multiple types of environmental stressors, including PDT, can produce the immunosuppressive lipid mediator platelet-activating factor (PAF). Because PAF can produce subcellular microvesicle particles (MVPs), these studies tested whether PDT can generate PAF and MVP release and whether these are involved in PDT-induced immunosuppression. Previously, topical PDT using blue light and 5-aminolevulinic acid was found to be a potent stimulus for PAF production in mice and human skin explants and human patients, and we show that experimental PDT also generates high levels of MVP. PDT-generated MVPs were independent of the PAF receptor but were dependent on the MVP-generating enzyme acid sphingomyelinase. Patients undergoing topical PDT treatment to at least 10% of body surface area showed local and systemic immunosuppression as measured by inhibition of delayed-type hypersensitivity reactions. Finally, using a murine model of contact hypersensitivity, PDT immunosuppression was blocked by genetic and pharmacologic inhibition of acid sphingomyelinase and genetic inhibition of PAF receptor signaling. These studies describe a mechanism involving MVP through which PDT exerts immunomodulatory effects, providing a potential target to improve its effectiveness.
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Affiliation(s)
- Oladayo A Oyebanji
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA
| | - Chad Brewer
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA
| | - Sharlo Bayless
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA
| | - Benjamin Schmeusser
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA
| | - Danielle A Corbin
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA
| | - Courtney E W Sulentic
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA
| | - Catherine M T Sherwin
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA; Department of Pediatrics, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA; Department of Experimental and Clinical Pharmacology, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota, USA
| | - Yanfang Chen
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA
| | - Christine M Rapp
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA
| | - Elizabeth E Cates
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA
| | - Yuhan Long
- Department of Experimental and Clinical Pharmacology, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota, USA
| | - Jeffrey B Travers
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA; Department of Dermatology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA; Dayton V.A. Medical Center, Dayton, Ohio, USA.
| | - Craig A Rohan
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA; Department of Dermatology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA; Dayton V.A. Medical Center, Dayton, Ohio, USA
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9
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Chaiyarit S, Thongboonkerd V. Mitochondria-derived vesicles and their potential roles in kidney stone disease. J Transl Med 2023; 21:294. [PMID: 37131163 PMCID: PMC10152607 DOI: 10.1186/s12967-023-04133-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/14/2023] [Indexed: 05/04/2023] Open
Abstract
Recent evidence has shown significant roles of mitochondria-derived vesicles (MDVs) in mitochondrial quality control (MQC) system. Under mild stress condition, MDVs are formed to carry the malfunctioned mitochondrial components, such as mitochondrial DNA (mtDNA), peptides, proteins and lipids, to be eliminated to restore normal mitochondrial structure and functions. Under severe oxidative stress condition, mitochondrial dynamics (fission/fusion) and mitophagy are predominantly activated to rescue mitochondrial structure and functions. Additionally, MDVs generation can be also triggered as the major MQC machinery to cope with unhealthy mitochondria when mitophagy is unsuccessful for eliminating the damaged mitochondria or mitochondrial fission/fusion fail to recover the mitochondrial structure and functions. This review summarizes the current knowledge on MDVs and discuss their roles in physiologic and pathophysiologic conditions. In addition, the potential clinical relevance of MDVs in therapeutics and diagnostics of kidney stone disease (KSD) are emphasized.
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Affiliation(s)
- Sakdithep Chaiyarit
- Medical Proteomics Unit, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, 6th Floor, SiMR Building, 2 Wanglang Road, Bangkoknoi, Bangkok, 10700, Thailand
| | - Visith Thongboonkerd
- Medical Proteomics Unit, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, 6th Floor, SiMR Building, 2 Wanglang Road, Bangkoknoi, Bangkok, 10700, Thailand.
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10
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Torralba EJV, Singh S, Short RF, Rapp CM, Henkels KM, Sahu RP, Travers JB. Radiation therapy produces microvesicle particle release in HaCaT keratinocytes. Skin Res Technol 2023; 29:e13332. [PMID: 37231923 PMCID: PMC10316468 DOI: 10.1111/srt.13332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 04/06/2023] [Indexed: 05/27/2023]
Affiliation(s)
- Ericson John V. Torralba
- Department of Pharmacology and ToxicologyBoonshoft School of MedicineWright State UniversityDaytonOhioUSA
| | - Shikshita Singh
- Department of Pharmacology and ToxicologyBoonshoft School of MedicineWright State UniversityDaytonOhioUSA
| | - Robert F. Short
- Department of Diagnostic and Therapeutic ImagingDayton Veterans Administration Medical CenterDaytonOhioUSA
| | - Christine M. Rapp
- Department of Pharmacology and ToxicologyBoonshoft School of MedicineWright State UniversityDaytonOhioUSA
| | - Karen M. Henkels
- Department of Pharmacology and ToxicologyBoonshoft School of MedicineWright State UniversityDaytonOhioUSA
| | - Ravi P. Sahu
- Department of Pharmacology and ToxicologyBoonshoft School of MedicineWright State UniversityDaytonOhioUSA
| | - Jeffrey B. Travers
- Department of Pharmacology and ToxicologyBoonshoft School of MedicineWright State UniversityDaytonOhioUSA
- Department of MedicineDayton Veterans Administration Medical CenterDaytonOhioUSA
- Department of DermatologyBoonshoft School of MedicineWright State UniversityDaytonOhioUSA
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11
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Thyagarajan A, Rapp CM, Schneider L, Lund A, Travers JB, Sahu RP. Exposure to diesel exhaust particulates and desert sand dust generates microvesicle particles and platelet-activating factor agonists. Skin Res Technol 2023; 29:e13312. [PMID: 37113092 PMCID: PMC10234165 DOI: 10.1111/srt.13312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 03/13/2023] [Indexed: 04/29/2023]
Affiliation(s)
- Anita Thyagarajan
- Department of Pharmacology and ToxicologyBoonshoft School of Medicine Wright State UniversityDaytonOhioUSA
| | - Christine M. Rapp
- Department of Pharmacology and ToxicologyBoonshoft School of Medicine Wright State UniversityDaytonOhioUSA
| | | | - Amie Lund
- Department of Biological Sciences Environmental ToxicologyUniversity of North TexasDentonTexasUSA
| | - Jeffrey B. Travers
- Department of Pharmacology and ToxicologyBoonshoft School of Medicine Wright State UniversityDaytonOhioUSA
- Department of DermatologyBoonshoft School of Medicine Wright State UniversityDaytonOhioUSA
- Department of MedicineDayton Veterans Administration Medical CenterDaytonOhioUSA
| | - Ravi P. Sahu
- Department of Pharmacology and ToxicologyBoonshoft School of Medicine Wright State UniversityDaytonOhioUSA
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12
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Corbin D, Christian L, Rapp CM, Liu L, Rohan CA, Travers JB. New concepts on abnormal UV reactions in systemic lupus erythematosus and a screening tool for assessment of photosensitivity. Skin Res Technol 2023; 29:e13247. [PMID: 36973991 PMCID: PMC10059080 DOI: 10.1111/srt.13247] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 11/11/2022] [Indexed: 03/09/2023]
Affiliation(s)
- Danielle Corbin
- Department of Pharmacology & ToxicologyBoonshoft School of Medicine at Wright State UniversityDaytonOhioUSA
| | - Lea Christian
- Department of Pharmacology & ToxicologyBoonshoft School of Medicine at Wright State UniversityDaytonOhioUSA
| | - Christine M. Rapp
- Department of Pharmacology & ToxicologyBoonshoft School of Medicine at Wright State UniversityDaytonOhioUSA
| | - Langni Liu
- Department of Pharmacology & ToxicologyBoonshoft School of Medicine at Wright State UniversityDaytonOhioUSA
| | - Craig A. Rohan
- Department of Pharmacology & ToxicologyBoonshoft School of Medicine at Wright State UniversityDaytonOhioUSA
- Department of DermatologyBoonshoft School of Medicine at Wright State UniversityDaytonOhioUSA
- Department of Medicine (Dermatology)Dayton Veterans Administration Medical CenterDaytonOhioUSA
| | - Jeffrey B. Travers
- Department of Pharmacology & ToxicologyBoonshoft School of Medicine at Wright State UniversityDaytonOhioUSA
- Department of DermatologyBoonshoft School of Medicine at Wright State UniversityDaytonOhioUSA
- Department of Medicine (Dermatology)Dayton Veterans Administration Medical CenterDaytonOhioUSA
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13
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Neale RE, Lucas RM, Byrne SN, Hollestein L, Rhodes LE, Yazar S, Young AR, Berwick M, Ireland RA, Olsen CM. The effects of exposure to solar radiation on human health. Photochem Photobiol Sci 2023:10.1007/s43630-023-00375-8. [PMID: 36856971 PMCID: PMC9976694 DOI: 10.1007/s43630-023-00375-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 01/13/2023] [Indexed: 03/02/2023]
Abstract
This assessment by the Environmental Effects Assessment Panel (EEAP) of the Montreal Protocol under the United Nations Environment Programme (UNEP) evaluates the effects of ultraviolet (UV) radiation on human health within the context of the Montreal Protocol and its Amendments. We assess work published since our last comprehensive assessment in 2018. Over the last four years gains have been made in knowledge of the links between sun exposure and health outcomes, mechanisms, and estimates of disease burden, including economic impacts. Of particular note, there is new information about the way in which exposure to UV radiation modulates the immune system, causing both harms and benefits for health. The burden of skin cancer remains high, with many lives lost to melanoma and many more people treated for keratinocyte cancer, but it has been estimated that the Montreal Protocol will prevent 11 million cases of melanoma and 432 million cases of keratinocyte cancer that would otherwise have occurred in the United States in people born between 1890 and 2100. While the incidence of skin cancer continues to rise, rates have stabilised in younger populations in some countries. Mortality has also plateaued, partly due to the use of systemic therapies for advanced disease. However, these therapies are very expensive, contributing to the extremely high economic burden of skin cancer, and emphasising the importance and comparative cost-effectiveness of prevention. Photodermatoses, inflammatory skin conditions induced by exposure to UV radiation, can have a marked detrimental impact on the quality of life of sufferers. More information is emerging about their potential link with commonly used drugs, particularly anti-hypertensives. The eyes are also harmed by over-exposure to UV radiation. The incidence of cataract and pterygium is continuing to rise, and there is now evidence of a link between intraocular melanoma and sun exposure. It has been estimated that the Montreal Protocol will prevent 63 million cases of cataract that would otherwise have occurred in the United States in people born between 1890 and 2100. Despite the clearly established harms, exposure to UV radiation also has benefits for human health. While the best recognised benefit is production of vitamin D, beneficial effects mediated by factors other than vitamin D are emerging. For both sun exposure and vitamin D, there is increasingly convincing evidence of a positive role in diseases related to immune function, including both autoimmune diseases and infection. With its influence on the intensity of UV radiation and global warming, the Montreal Protocol has, and will have, both direct and indirect effects on human health, potentially changing the balance of the risks and benefits of spending time outdoors.
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Affiliation(s)
- R. E. Neale
- Population Health Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD Australia ,School of Public Health, University of Queensland, Brisbane, QLD Australia
| | - R. M. Lucas
- National Centre for Epidemiology and Population Health, Australian National University, Canberra, ACT Australia
| | - S. N. Byrne
- School of Medical Science, Faculty of Medicine and Health, University of Sydney, Sydney, NSW Australia
| | - L. Hollestein
- Erasmus MC Cancer Institute, Rotterdam, The Netherlands ,Netherlands Comprehensive Cancer Organisation, Utrecht, The Netherlands
| | - L. E. Rhodes
- Dermatology Research Centre, School of Biological Sciences, University of Manchester, Salford Royal Hospital, Northern Care Alliance NHS Trust, Manchester, UK
| | - S. Yazar
- Garvan Medical Research Institute, Sydney, NSW Australia
| | | | - M. Berwick
- University of New Mexico Comprehensive Cancer Center, Albuquerque, USA
| | - R. A. Ireland
- School of Medical Science, Faculty of Medicine and Health, University of Sydney, Sydney, NSW Australia
| | - C. M. Olsen
- Population Health Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD Australia ,Frazer Institute, University of Queensland, Brisbane, QLD Australia
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14
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Tse BCY, Ferguson AL, Koay YC, Grau GE, Don AS, Byrne SN. Exposure to solar ultraviolet radiation establishes a novel immune suppressive lipidome in skin-draining lymph nodes. Front Immunol 2023; 13:1045731. [PMID: 36741361 PMCID: PMC9895826 DOI: 10.3389/fimmu.2022.1045731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/22/2022] [Indexed: 01/21/2023] Open
Abstract
The ability of ultraviolet radiation to suppress the immune system is thought to be central to both its beneficial (protection from autoimmunity) and detrimental (carcinogenic) effects. Previous work revealed a key role for lipids particularly platelet-activating factor and sphingosine-1-phosphate in mediating UV-induced immune suppression. We therefore hypothesized that there may be other UV-induced lipids that have immune regulatory roles. To assess this, mice were exposed to an immune suppressive dose of solar-simulated UV (8 J/cm2). Lipidomic analysis identified 6 lipids (2 acylcarnitines, 2 neutral lipids, and 2 phospholipids) with significantly increased levels in the skin-draining lymph nodes of UV-irradiated mice. Imaging mass spectrometry of the lipids in combination with imaging mass cytometry identification of lymph node cell subsets indicated a preferential location of UV-induced lipids to T cell areas. In vitro co-culture of skin-draining lymph node lipids with lymphocytes showed that lipids derived from UV-exposed mice have no effect on T cell activation but significantly inhibited T cell proliferation, indicating that the lipids play an immune regulatory role. These studies are important first steps in identifying novel lipids that contribute to UV-mediated immune suppression.
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Affiliation(s)
- Benita C. Y. Tse
- The University of Sydney, School of Medical Sciences, Faculty of Medicine and Health, Sydney, NSW, Australia
| | - Angela L. Ferguson
- The University of Sydney, School of Medical Sciences, Faculty of Medicine and Health, Sydney, NSW, Australia
| | - Yen Chin Koay
- The University of Sydney, School of Medical Sciences, Faculty of Medicine and Health, Sydney, NSW, Australia,Heart Research Institute, The University of Sydney, Sydney, NSW, Australia
| | - Georges E. Grau
- The University of Sydney, School of Medical Sciences, Faculty of Medicine and Health, Sydney, NSW, Australia
| | - Anthony S. Don
- The University of Sydney, School of Medical Sciences, Faculty of Medicine and Health, Sydney, NSW, Australia
| | - Scott N. Byrne
- The University of Sydney, School of Medical Sciences, Faculty of Medicine and Health, Sydney, NSW, Australia,Westmead Institute for Medical Research, Centre for Immunology and Allergy Research, Sydney, NSW, Australia,*Correspondence: Scott N. Byrne,
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15
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Rohan CJ, Lohade RP, Brewer C, Travers JB. Platelet-activating factor and microvesicle particles as potential mediators for the toxicity associated with intoxicated thermal burn injury. Biofactors 2022; 48:1250-1256. [PMID: 36342751 PMCID: PMC9789186 DOI: 10.1002/biof.1917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/16/2022] [Indexed: 11/09/2022]
Abstract
Thermal burn injuries (TBIs) in patients who are alcohol-intoxicated result in greater morbidity and mortality. The systemic toxicity found in human patients, which includes both immediate systemic cytokine generation with multiple organ failure and a delayed systemic immunosuppression, has previously been replicated in mouse models combining ethanol and localized TBI. Though considerable insights have been provided with these models, the exact mechanisms for these pathologic effects are unclear. In this review, we highlight the roles of the lipid mediator platelet-activating factor (PAF) and subcellular microvesicle particle (MVP) release in response to intoxicated thermal burn injury (ITBI) as effectors in the pathology. Particularly, MVP is released from keratinocytes in response to PAF receptor (PAFR) activation due to excess PAF produced by ITBI. These subcellular particles carry and thus protect the metabolically labile PAF which enable binding of this potent lipid mediator to several key sites. We hypothesize that PAF carried by MVP can bind to PAFR within the gut, activating myosin light chain kinase (MLCK). The subsequent gut barrier dysfunction in response to MLCK activation then allows bacteria to invade the lymphatic system and, eventually, the bloodstream, resulting in sepsis and resultant dysregulated inflammation in multiple organs. PAF in MVP also activate the skin mast cell PAFR resulting in migration of this key effector cell to the lymph nodes to induce immunosuppression. This review thus provides a mechanism and potential therapeutic approaches for the increased toxicity and immunosuppressive outcomes of TBI in the presence of acute ethanol exposure.
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Affiliation(s)
- Carson J. Rohan
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton Ohio
| | - Rushabh P. Lohade
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton Ohio
| | - Chad Brewer
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton Ohio
| | - Jeffrey B. Travers
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton Ohio
- Department of Dermatology, Boonshoft School of Medicine at Wright State University, Dayton Ohio
- Department of Medicine, Dayton Veterans Administration Hospital, Dayton Ohio
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16
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Thyagarajan A, Awasthi K, Rapp CM, Johnson RM, Chen Y, Miller KL, Travers JB, Sahu RP. Topical application of gemcitabine generates microvesicle particles in human and murine skin. Biofactors 2022; 48:1295-1304. [PMID: 36504167 PMCID: PMC9789190 DOI: 10.1002/biof.1924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 11/24/2022] [Indexed: 12/15/2022]
Abstract
Chemotherapy has remained the mainstay for the treatment of multiple types of cancers. In particular, topical use of chemotherapy has been used for skin cancers. Though effective, topical chemotherapy has been limited due to adverse effects such as local and even systemic toxicities. Our recent studies demonstrated that exposure to pro-oxidative stressors, including therapeutic agents induces the generation of extracellular vesicles known as microvesicle particles (MVP) which are dependent on activation of the Platelet-activating factor-receptor (PAFR), a G-protein coupled receptor present on various cell types, and acid sphingomyelinase (aSMase), an enzyme required for MVP biogenesis. Based upon this premise, we tested the hypothesis that topical application of gemcitabine will induce MVP generation in human and murine skin. Our ex vivo studies using human skin explants demonstrate that gemcitabine treatment results in MVP generation in a dose-dependent manner in a process blocked by PAFR antagonist and aSMase inhibitor. Importantly, gemcitabine-induced MVPs carry PAFR agonists. To confirm the mechanisms, we employed PAFR-expressing and deficient (Ptafr-/- ) mouse models as well as mice deficient in aSMase enzyme (Spmd1-/- ). Similar to the findings using pharmacologic tools, genetic-based approaches demonstrate that gemcitabine-induced MVP release in WT mice was blunted in Ptafr-/- and Spmd1-/- mice. These findings demonstrate a novel mechanism by which local chemotherapy can generate bioactive components as a bystander effect in a process that is dependent upon the PAFR-aSMase pathway.
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Affiliation(s)
- Anita Thyagarajan
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine Wright State University, Dayton, OH 45435
- Correspondence to: (AT) and (RPS), 230 Health Sciences Bldg, 3640 Colonel Glenn Hwy, Dayton, OH45435
| | - Krishna Awasthi
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine Wright State University, Dayton, OH 45435
| | - Christine M. Rapp
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine Wright State University, Dayton, OH 45435
| | - R. Michael Johnson
- Department of Orthopedics and Plastic Surgery, Boonshoft School of Medicine Wright State University, Dayton, OH 45435
| | - Yanfang Chen
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine Wright State University, Dayton, OH 45435
| | - Kelly L.R. Miller
- Department of Internal Medicine, Boonshoft School of Medicine Wright State University, Dayton, OH 45435
| | - Jeffrey B. Travers
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine Wright State University, Dayton, OH 45435
- Department of Dermatology, Boonshoft School of Medicine Wright State University, Dayton, OH 45435
- Dayton VA Medical Center, Dayton, OH 45428
| | - Ravi P. Sahu
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine Wright State University, Dayton, OH 45435
- Correspondence to: (AT) and (RPS), 230 Health Sciences Bldg, 3640 Colonel Glenn Hwy, Dayton, OH45435
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17
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Wang M, Wu P, Huang J, Liu W, Qian H, Sun Y, Shi H. Skin cell-derived extracellular vesicles: a promising therapeutic strategy for cutaneous injury. BURNS & TRAUMA 2022; 10:tkac037. [PMID: 36267497 PMCID: PMC9580071 DOI: 10.1093/burnst/tkac037] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/12/2022] [Accepted: 07/15/2022] [Indexed: 06/16/2023]
Abstract
Wound healing refers to the healing process that occurs after the skin and other tissues are separated or damaged by internal or external forces. It is a complex combination of tissue regeneration, granulation tissue hyperplasia, and scar formation, and shows the synergistic effects of these processes. After skin damage, the environment around the wound and the cells at site of the damage respond immediately, and a range of cytokines and growth factors are released. In cutaneous injury, extracellular vesicle (EV) signaling plays a vital role in the healing process via paracrine and endocrine mechanisms. EVs are natural intercellular and inter-organ communication tools that carry various bioactive substances for message exchange. Stem cells and stem cell EVs facilitate tissue repair, showing promising potential in regenerative medicine. Nevertheless, EVs derived from specific skin tissue cells, such as epidermal cells, fibroblasts, vascular endothelial cells and inflammatory cells, also play important roles in cutaneous tissue repair. Here, we describe the characteristics of wound healing, concentrating on the production and functions of EVs derived from specific skin cells, and provide new ideas for wound therapy using EVs.
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Affiliation(s)
- Min Wang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, School of Medicine, Jiangsu University, Zhenjiang 212000, China
| | - Peipei Wu
- Department of Clinical Laboratory, The Affiliated Yixing Hospital of Jiangsu University, Yixing 214200, China
| | - Jin Huang
- Department of Clinical Laboratory, The Affiliated Yixing Hospital of Jiangsu University, Yixing 214200, China
| | - Wenhui Liu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, School of Medicine, Jiangsu University, Zhenjiang 212000, China
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, School of Medicine, Jiangsu University, Zhenjiang 212000, China
| | - Yaoxiang Sun
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, School of Medicine, Jiangsu University, Zhenjiang 212000, China
- Department of Clinical Laboratory, The Affiliated Yixing Hospital of Jiangsu University, Yixing 214200, China
| | - Hui Shi
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, School of Medicine, Jiangsu University, Zhenjiang 212000, China
- Aoyang Institute of Cancer, Affiliated Aoyang Hospital of Jiangsu University, 279 Jingang Road, Suzhou, Jiangsu 215100, China
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18
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Khair S, Brenner LA, Koval M, Samuelson D, Cucinello-Regland JA, Anton P, Piano MR, Simon L, Crotty K, Sharieh F, Travers JB, Singh V, Cannon A, Kim A, McCullough RL, Yeligar SM, Wyatt TA, McMahan RH, Choudhry MA, Kovacs EJ. New insights into the mechanism of alcohol-mediated organ damage via its impact on immunity, metabolism, and repair pathways: A summary of the 2021 Alcohol and Immunology Research Interest Group (AIRIG) meeting. Alcohol 2022; 103:1-7. [PMID: 35659577 PMCID: PMC9994264 DOI: 10.1016/j.alcohol.2022.05.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 01/14/2023]
Abstract
On November 19th, 2021, the annual Alcohol and Immunology Research Interest Group (AIRIG) meeting was held at Loyola University Chicago Health Sciences Campus in Maywood, Illinois. The 2021 meeting focused on how alcohol misuse is linked to immune system derangements, leading to tissue and organ damage, and how this research can be translated into improving treatment of alcohol-related disease. This meeting was divided into three plenary sessions: the first session focused on how alcohol misuse affects different parts of the immune system, the second session presented research on mechanisms of organ damage from alcohol misuse, and the final session highlighted research on potential therapeutic targets for treating alcohol-mediated tissue damage. Diverse areas of alcohol research were covered during the meeting, from alcohol's effect on pulmonary systems and neuroinflammation to epigenetic changes, senescence markers, and microvesicle particles. These presentations yielded a thoughtful discussion on how the findings can lead to therapeutic treatments for people suffering from alcohol-related diseases.
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Affiliation(s)
- Shanawaj Khair
- Department of Surgery, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, United States; Alcohol Research Program, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, United States; Molecular Biology Graduate Program, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, United States; Medical Scientist Training Program, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, United States
| | - Lisa A Brenner
- VA Rocky Mountain Mental Illness Research Education and Clinical Center, Rocky Mountain Regional Veterans Affairs (VA) Medical Center, Aurora, CO, United States; Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO, United States; Department of Psychiatry and Neurology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States; Military and Veteran Microbiome: Consortium for Research and Education, Aurora, CO, United States
| | - Michael Koval
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, GA, United States; Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
| | - Derrick Samuelson
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States
| | - Jessica A Cucinello-Regland
- Department of Physiology, Alcohol and Drug Abuse Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Paige Anton
- Department of Pharmaceutical Sciences, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, United States
| | - Mariann R Piano
- Center for Research Development and Scholarship, Vanderbilt University School of Nursing, Nashville, TN, United States
| | - Liz Simon
- Department of Physiology, Comprehensive Alcohol HIV/AIDs Research Center, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Kathryn Crotty
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, Atlanta Veterans Affairs Health Care System, Decatur, GA, United States
| | - Farah Sharieh
- Department of Orthopedic Surgery and Rehabilitation, Loyola University Medical Center, Maywood, IL, United States; Alcohol Research Program, Loyola University Chicago Stritch School of Medicine, Maywood, IL, United States
| | | | - Vaibhav Singh
- Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH, United States
| | - Abigail Cannon
- Alcohol Research Program, Burn and Shock Trauma Research Institute, Department of Surgery, Loyola University Chicago Health Sciences Campus, Maywood, IL, United States
| | - Adam Kim
- Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH, United States
| | - Rebecca L McCullough
- Department of Pharmaceutical Sciences, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, United States
| | - Samantha M Yeligar
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, Atlanta Veterans Affairs Health Care System, Decatur, GA, United States
| | - Todd A Wyatt
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States; Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States
| | - Rachel H McMahan
- Department of Surgery, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, United States; Alcohol Research Program, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, United States
| | - Mashkoor A Choudhry
- Alcohol Research Program, Burn and Shock Trauma Research Institute, Department of Surgery, Loyola University Chicago Health Sciences Campus, Maywood, IL, United States; Integrative Cell Biology Program, Loyola University Chicago Health Sciences Campus, Maywood, IL, United States
| | - Elizabeth J Kovacs
- Department of Surgery, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, United States; Alcohol Research Program, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, United States; Molecular Biology Graduate Program, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, United States; Medical Scientist Training Program, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, United States; VA Rocky Mountain Mental Illness Research Education and Clinical Center, Rocky Mountain Regional Veterans Affairs (VA) Medical Center, Aurora, CO, United States.
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19
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Frommeyer TC, Gilbert MM, Brittain GV, Wu T, Nguyen TQ, Rohan CA, Travers JB. UVB-Induced Microvesicle Particle Release and Its Effects on the Cutaneous Microenvironment. Front Immunol 2022; 13:880850. [PMID: 35603177 PMCID: PMC9120817 DOI: 10.3389/fimmu.2022.880850] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/04/2022] [Indexed: 12/14/2022] Open
Abstract
Ultraviolet B radiation (UVB) has profound effects on human skin that results in a broad spectrum of immunological local and systemic responses and is the major cause of skin carcinogenesis. One important area of study in photobiology is how UVB is translated into effector signals. As the skin is exposed to UVB light, subcellular microvesicle particles (MVP), a subtype of bioactive extracellular vesicles, are released causing a variety of local and systemic immunological effects. In this review, we highlight keratinocyte MVP release in keratinocytes in response to UVB. Specifically, Platelet-activating factor receptor agonists generated by UVB result in MVP released from keratinocytes. The downstream effects of MVP release include the ability of these subcellular particles to transport agents including the glycerophosphocholine-derived lipid mediator Platelet-activating factor (PAF). Moreover, even though UVB is only absorbed in the epidermis, it appears that PAF release from MVPs also mediates systemic immunosuppression and enhances tumor growth and metastasis. Tumor cells expressing PAF receptors can use this mechanism to evade chemotherapy responses, leading to treatment resistance for advanced cancers such as melanoma. Furthermore, novel pharmacological agents provide greater insight into the UVB-induced immune response pathway and a potential target for pharmacological intervention. This review outlines the need to more clearly elucidate the mechanism linking UVB-irradiation with the cutaneous immune response and its pathological manifestations. An improved understanding of this process can result in new insights and treatment strategies for UVB-related disorders from carcinogenesis to photosensitivity.
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Affiliation(s)
- Timothy C. Frommeyer
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
| | - Michael M. Gilbert
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
| | - Garrett V. Brittain
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
| | - Tongfan Wu
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
| | - Trang Q. Nguyen
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
| | - Craig A. Rohan
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- Department of Dermatology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- Department of Medicine, Dayton Veterans Administration Medical Center, Dayton, OH, United States
| | - Jeffrey B. Travers
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- Department of Dermatology, Boonshoft School of Medicine at Wright State University, Dayton, OH, United States
- Department of Medicine, Dayton Veterans Administration Medical Center, Dayton, OH, United States
- *Correspondence: Jeffrey B. Travers,
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20
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Awoyemi AA, Borchers C, Liu L, Chen Y, Rapp CM, Brewer CA, Elased R, Travers JB. Acute ethanol exposure stimulates microvesicle particle generation in keratinocytes. Toxicol Lett 2022; 355:100-105. [PMID: 34801640 PMCID: PMC8702459 DOI: 10.1016/j.toxlet.2021.11.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/25/2021] [Accepted: 11/16/2021] [Indexed: 02/03/2023]
Abstract
Ethanol has been demonstrated to exert profound effects upon cells and tissues via multiple mechanisms. One recently appreciated means by which cells can communicate with other cells is via the production and release of extracellular vesicles. Though smaller exosomes have been demonstrated to be released in response to ethanol exposure, the ability of ethanol to modulate the generation and release of larger microvesicle particles (MVP) is lesser studied. The present studies examined the ability of exogenous ethanol to generate MVP with a focus on skin cells. Acute ethanol exposure resulted in augmented MVP release in keratinocytes and in the skin and blood of mice. Unlike other stimuli such as ultraviolet B radiation or thermal burn injury, ethanol-mediated MVP release was independent of the Platelet-activating Factor receptor (PAFR). However, ethanol pretreatment was found to augment thermal burn injury-induced MVP in a PAFR-dependent manner. These studies provide a novel mechanism for ethanol-mediated effects, that could be relevant in the significant toxicity associated with thermal burn injury in the setting of alcohol intoxication.
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Affiliation(s)
- Azeezat A. Awoyemi
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Christina Borchers
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Langni Liu
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Yanfang Chen
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Christine M. Rapp
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Chad A. Brewer
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Ramzi Elased
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Jeffrey B. Travers
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435,Department of Dermatology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435,The Dayton V.A. Medical Center, Dayton, OH 45428.,Corresponding author: Jeffrey B. Travers, M.D., Ph.D., Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, 3640 Col Glenn Hwy, Dayton, OH 46435,
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21
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Thapa P, Bhadri S, Borchers C, Liu L, Chen Y, Rapp CM, Travers JB. Low UVB Fluences Augment Microvesicle Particle Generation in Keratinocytes. Photochem Photobiol 2022; 98:248-253. [PMID: 34324709 PMCID: PMC8799755 DOI: 10.1111/php.13495] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 07/27/2021] [Indexed: 01/03/2023]
Abstract
Microvesicle particles (MVP) are bioactive subcellular particles which have been recently implicated in the keratinocyte response to many environmental stressors including ultraviolet B radiation (UVB). Previous studies have demonstrated that UVB generates high levels of MVP in a process involving the platelet-activating factor receptor (PAFR) and the enzyme acid sphingomyelinase (aSMase). Yet the fluences of UVB needed to generate MVP are usually above those commonly encountered. Using models including human epithelial cell lines in vitro, human skin explants ex vivo and murine studies in vivo, the present studies indicate that pretreatment of epithelial cells/skin with PAFR agonist/phorbol ester can synergize with low fluences of UVB to generate high levels of MVP. These studies indicate the possibility that MVP could play a role in combinatorial pathologic processes involving UVB.
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Affiliation(s)
- Pariksha Thapa
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Shweta Bhadri
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Christina Borchers
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Langni Liu
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Yanfang Chen
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Christine M. Rapp
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Jeffrey B. Travers
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435,Department of Dermatology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435,The Dayton V.A. Medical Center, Dayton, OH 45428.,Corresponding author: (Jeffrey B. Travers)
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22
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McGlone CL, Christian L, Schmeusser B, Liu L, Chalfant CE, Stephensen DJ, Sherwin CM, Rapp CM, Sattouf Z, Rohan CA, Morris C, Chen Y, Travers JB. Evidence for Systemic Reactive Oxygen Species in UVB-mediated Microvesicle Formation. Photochem Photobiol 2022; 98:242-247. [PMID: 34324712 PMCID: PMC8799769 DOI: 10.1111/php.13494] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 01/03/2023]
Abstract
Recent studies have implicated subcellular microvesicle particles (MVP) in the ability of ultraviolet B radiation to exert both local and systemic effects. Indeed, UVB generates MVP (UVB-MVP) in human skin and systemically following phototherapy. The current studies were designed to test the hypothesis that the ability of UVB to generate MVP was dependent upon reactive oxygen species (ROS). To that end, we tested urine samples from subjects undergoing UVB phototherapy for the presence of isoprostanes as well as the oxidized guanosine derivative 8OHdG. We also conducted a clinical study in which volar forearms of subjects were treated with localized UVB and erythema/MVP measured. The same cohort was then treated with 7 days of vitamin C (2 g day-1 ) and vitamin E (1000 IU day-1 ), and UVB-induced MVPs tested on the contralateral forearm. Urine specimens from subjects undergoing phototherapy were found to have increased levels of isoprostanes and 8OHdG, with maximal levels noted 8-16 h post-treatment. Treatment with antioxidant vitamins resulted in diminished UVB-generated skin MVP to baseline levels. These studies suggest that whole-body UVB generates a systemic pro-oxidative response, and that antioxidants can attenuate localized skin UVB-MVPs.
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Affiliation(s)
- Cameron L. McGlone
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Lea Christian
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Benjamin Schmeusser
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Langni Liu
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Charles E. Chalfant
- Department of Cell Biology, Microbiology, and Molecular Biology, University of South Florida, Tampa, FL 33620, USA,Research Service, James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Daniel J. Stephensen
- Department of Cell Biology, Microbiology, and Molecular Biology, University of South Florida, Tampa, FL 33620, USA
| | - Catherine M. Sherwin
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435,Department of Pediatrics, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Christine M. Rapp
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Zafer Sattouf
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Craig A. Rohan
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435,Department of Dermatology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Connor Morris
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Yanfang Chen
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Jeffrey B. Travers
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435,Department of Dermatology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435,The Dayton V.A. Medical Center, Dayton, OH 45428.,Corresponding author: (Jeffrey B. Travers)
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23
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Wang J, Pothana K, Chen S, Sawant H, Travers JB, Bihl J, Chen Y. Ultraviolet B Irradiation Alters the Level and miR Contents of Exosomes Released by Keratinocytes in Diabetic Condition. Photochem Photobiol 2021; 98:1122-1130. [PMID: 34931322 PMCID: PMC9511213 DOI: 10.1111/php.13583] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/14/2021] [Indexed: 12/17/2022]
Abstract
Ultraviolet B (UVB) stimulates the generation of extracellular vesicles, which elicit systemic effects. Here, we studied whether UVB affects the release and microRNA (miR) content of keratinocyte exosomes (EXs) in diabetic conditions. In vitro, we examined the UVB effects on affecting EX release from keratinocyte HaCaT cells (HaCaT‐EX) pretreated with high glucose. HaCaT‐EX functions were evaluated on Schwann cells (SCs). In vivo, UVB‐induced miR change in skin EXs of diabetic db/db mice was analyzed. The miRs of interest were validated in HaCaT‐EXs. We found that: (1) UVB promoted HaCaT‐EX generation in dose‐ and time‐dependent manners; 100 and 1800 J m−2 of UVB had the most prominent effect and were selected as effective low‐ and high‐fluence UVB in vitro. (2) A total of 13 miRs were differentially expressed >3‐fold in skin EXs in UVB‐treated db/db mice; miR‐126 was the most up‐regulated by low‐fluence UVB. (3) Functional studies revealed that the SC viability was improved by low‐fluence UVB HaCaT‐EXs, while worsened by high‐fluence UVB HaCaT‐EXs. (4) MiR‐126 inhibitor attenuated the effects induced by low‐fluence UVB HaCaT‐EXs. Our data have demonstrated that low‐ and high‐fluence UVBs promote HaCaT‐EX generation but differentially affect exosomal miR levels and functions under diabetic conditions.
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Affiliation(s)
- Jinju Wang
- Department of Biomedical Sciences, Joan C Edwards School of Medicine, Marshall University, Huntington, WV, USA
| | - Kartheek Pothana
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH, USA
| | - Shuzhen Chen
- Department of Biomedical Sciences, Joan C Edwards School of Medicine, Marshall University, Huntington, WV, USA
| | - Harshal Sawant
- Department of Biomedical Sciences, Joan C Edwards School of Medicine, Marshall University, Huntington, WV, USA
| | - Jeffrey B Travers
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH, USA.,The Dayton V.A. Medical Center, Dayton, OH, USA
| | - Ji Bihl
- Department of Biomedical Sciences, Joan C Edwards School of Medicine, Marshall University, Huntington, WV, USA
| | - Yanfang Chen
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH, USA
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24
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Bhadri S, Thapa P, Chen Y, Rapp CM, Travers JB. Evidence for microvesicle particles in UVB-mediated IL-8 generation in keratinocytes. JOURNAL OF CLINICAL AND INVESTIGATIVE DERMATOLOGY 2021; 9. [PMID: 34950767 DOI: 10.13188/2373-1044.1000076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Recent studies have implicated bioactive microvesicle particles (MVP) in the keratinocyte response to many environmental stressors, in partricular ultraviolet B radiation (UVB). The generation of MVP in response to UVB involves the Platelet-activating factor receptor (PAFR) and the enzyme acid sphingomyelinase (aSMase). As UVB generates some cytokines such as interleukin-8 (IL-8) in a PAFR-dependent manner, one question is if the production and release of IL-8 and MVP could be linked. Using the human keratinocyte-derived cell line HaCaT, the present in vitro studies indicate that pretreatment of HaCaT keratinocytes with PAFR agonist ester can synergize with low fluences of UVB to generate high levels of MVP as well as IL-8 protein. Treatment of cells with an aSMase pharmacologic inhibitor blocked both processes. These studies indicate the possibility that MVP could be involved in pathologic processes involving UVB-generated production of pro-inflammatory cytokines such as IL-8.
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Affiliation(s)
- Shweta Bhadri
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Pariksha Thapa
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Yanfang Chen
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Christine M Rapp
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435
| | - Jeffrey B Travers
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435.,Department of Dermatology, Boonshoft School of Medicine at Wright State University, Dayton, OH 45435.,The Dayton V.A. Medical Center, Dayton, OH 45428
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25
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Mattingly J, Li Y, Bihl JC, Wang J. The promise of exosome applications in treating central nervous system diseases. CNS Neurosci Ther 2021; 27:1437-1445. [PMID: 34636491 PMCID: PMC8611778 DOI: 10.1111/cns.13743] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/25/2021] [Accepted: 09/27/2021] [Indexed: 12/18/2022] Open
Abstract
Exosomes (EXs), a type of extracellular vesicles, are secreted from virtually all types of cells. EXs serve as cell-to-cell communicators by conveying proteins and nucleic acids with regulatory functions. Increasing evidence shows that EXs are implicated in the pathogenesis of central nervous system (CNS) diseases. Moreover, EXs have recently been highlighted as a new promising therapeutic strategy for in vivo delivery of nucleotides and drugs. Studies have revealed that infusion of EXs elicits beneficial effects on the CNS injury animal models. As compared to cell-based therapy, EXs-based therapy for CNS diseases has unique advantages, opening a new path for neurological medicine. In this review, we summarized the current state of knowledge of EXs, the roles and applications of EXs as a viable pathological biomarker, and EX-based therapy for CNS diseases.
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Affiliation(s)
- Jared Mattingly
- Department of Biomedical SciencesJoan C. Edwards School of MedicineMarshall UniversityHuntingtonWest VirginiaUSA
| | - Yuchen Li
- Department of Pharmacology and ToxicologyBoonshoft School of MedicineWright State UniversityDaytonOhioUSA
| | - Ji C. Bihl
- Department of Biomedical SciencesJoan C. Edwards School of MedicineMarshall UniversityHuntingtonWest VirginiaUSA
| | - Jinju Wang
- Department of Biomedical SciencesJoan C. Edwards School of MedicineMarshall UniversityHuntingtonWest VirginiaUSA
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26
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Vats K, Kruglov O, Mizes A, Samovich SN, Amoscato AA, Tyurin VA, Tyurina YY, Kagan VE, Bunimovich YL. Keratinocyte death by ferroptosis initiates skin inflammation after UVB exposure. Redox Biol 2021; 47:102143. [PMID: 34592565 PMCID: PMC8487085 DOI: 10.1016/j.redox.2021.102143] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 09/09/2021] [Accepted: 09/18/2021] [Indexed: 02/09/2023] Open
Abstract
The ultraviolet B radiation (UVB) causes skin inflammation, which contributes to the causality and the exacerbation of a number of cutaneous diseases. However, the mechanism of UVB-driven inflammation in the skin remains poorly understood. We show that ferroptosis, a non-apoptotic programmed cell death pathway that is promoted by an excessive phospholipid peroxidation, is activated in the epidermal keratinocytes after their exposure to UVB. The susceptibility of the keratinocytes to UVB-induced ferroptosis depends on the extent of pro-ferroptosis death signal generation and the dysregulation of the glutathione system. Inhibition of ferroptosis prevents the release of HMGB1 from the human epidermal keratinocytes, and blocks necroinflammation in the UVB-irradiated mouse skin. We show that while apoptosis and pyroptosis are also detectable in the keratinocytes after UVB exposure, ferroptosis plays a significant role in initiating UVB-induced inflammation in the skin. Our results have important implications for the prevention and the treatment of a broad range of skin diseases which are fostered by UVB-induced inflammation.
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Affiliation(s)
- Kavita Vats
- Department of Dermatology, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Oleg Kruglov
- Department of Dermatology, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Alicia Mizes
- School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Svetlana N Samovich
- Center for Free Radical and Antioxidant Health, Department of Environmental Health and Occupational Health, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Andrew A Amoscato
- Center for Free Radical and Antioxidant Health, Department of Environmental Health and Occupational Health, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Vladimir A Tyurin
- Center for Free Radical and Antioxidant Health, Department of Environmental Health and Occupational Health, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Yulia Y Tyurina
- Center for Free Radical and Antioxidant Health, Department of Environmental Health and Occupational Health, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Valerian E Kagan
- Center for Free Radical and Antioxidant Health, Department of Environmental Health and Occupational Health, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Yuri L Bunimovich
- Department of Dermatology, University of Pittsburgh, Pittsburgh, PA, 15213, USA; Hillman Cancer Institute, University of Pittsburgh Medical Center, Pittsburgh, PA, 15213, USA.
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27
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Tse BCY, Ireland RA, Lee JY, Marsh-Wakefield F, Kok LF, Don AS, Byrne SN. Exposure to Systemic Immunosuppressive Ultraviolet Radiation Alters T Cell Recirculation through Sphingosine-1-Phosphate. THE JOURNAL OF IMMUNOLOGY 2021; 207:2278-2287. [PMID: 34561229 DOI: 10.4049/jimmunol.2001261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 08/25/2021] [Indexed: 11/19/2022]
Abstract
Systemic suppression of adaptive immune responses is a major way in which UV radiation contributes to skin cancer development. Immune suppression is also likely to explain how UV protects from some autoimmune diseases, such as multiple sclerosis. However, the mechanisms underlying UV-mediated systemic immune suppression are not well understood. Exposure of C57BL/6 mice to doses of UV known to suppress systemic autoimmunity led to the accumulation of cells within the skin-draining lymph nodes and away from non-skin-draining lymph nodes. Transfer of CD45.1+ cells from nonirradiated donors into CD45.2+ UV-irradiated recipients resulted in preferential accumulation of donor naive T cells and a decrease in activated T cells within skin-draining lymph nodes. A single dose of immune-suppressive UV was all that was required to cause a redistribution of naive and central memory T cells from peripheral blood to the skin-draining lymph nodes. Specifically, CD69-independent increases in sphingosine-1-phosphate (S1P) receptor 1-negative naive and central memory T cells occurred in these lymph nodes. Mass spectrometry analysis showed UV-mediated activation of sphingosine kinase 1 activity, resulting in an increase in S1P levels within the lymph nodes. Topical application of a sphingosine kinase inhibitor on the skin prior to UV irradiation eliminated the UV-induced increase in lymph node S1P and T cell numbers. Thus, exposure to immunosuppressive UV disrupts T cell recirculation by manipulating the S1P pathway.
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Affiliation(s)
- Benita C Y Tse
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Rachael A Ireland
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.,Westmead Institute for Medical Research, Centre for Immunology and Allergy Research, Westmead, New South Wales, Australia; and
| | - Jun Yup Lee
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Felix Marsh-Wakefield
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Lai Fong Kok
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Anthony S Don
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.,Centenary Institute, The University of Sydney, Sydney, New South Wales, Australia
| | - Scott N Byrne
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia; .,Westmead Institute for Medical Research, Centre for Immunology and Allergy Research, Westmead, New South Wales, Australia; and
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28
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Foessl I, Haudum CW, Vidakovic I, Prassl R, Franz J, Mautner SI, Kainz S, Hofmann E, Obermayer-Pietsch B, Birngruber T, Kotzbeck P. miRNAs as Regulators of the Early Local Response to Burn Injuries. Int J Mol Sci 2021; 22:ijms22179209. [PMID: 34502118 PMCID: PMC8430593 DOI: 10.3390/ijms22179209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/18/2021] [Accepted: 08/20/2021] [Indexed: 12/20/2022] Open
Abstract
In burn injuries, risk factors and limitations to treatment success are difficult to assess clinically. However, local cellular responses are characterized by specific gene-expression patterns. MicroRNAs (miRNAs) are single-stranded, non-coding RNAs that regulate mRNA expression on a posttranscriptional level. Secreted through exosome-like vesicles (ELV), miRNAs are intracellular signalers and epigenetic regulators. To date, their role in the regulation of the early burn response remains unclear. Here, we identified 43 miRNAs as potential regulators of the early burn response through the bioinformatics analysis of an existing dataset. We used an established human ex vivo skin model of a deep partial-thickness burn to characterize ELVs and miRNAs in dermal interstitial fluid (dISF). Moreover, we identified miR-497-5p as stably downregulated in tissue and dISF in the early phase after a burn injury. MiR-218-5p and miR-212-3p were downregulated in dISF, but not in tissue. Target genes of the miRNAs were mainly upregulated in tissue post-burn. The altered levels of miRNAs in dISF of thermally injured skin mark them as new biomarker candidates for burn injuries. To our knowledge, this is the first study to report miRNAs altered in the dISF in the early phase of deep partial-thickness burns.
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Affiliation(s)
- Ines Foessl
- Department of Internal Medicine, Division of Endocrinology and Diabetology, Medical University of Graz, 8036 Graz, Austria; (C.W.H.); (J.F.); (S.I.M.); (B.O.-P.); (P.K.)
- Correspondence: ; Tel.: +43-316-385-72936
| | - Christoph Walter Haudum
- Department of Internal Medicine, Division of Endocrinology and Diabetology, Medical University of Graz, 8036 Graz, Austria; (C.W.H.); (J.F.); (S.I.M.); (B.O.-P.); (P.K.)
- CBmed GmbH—Center for Biomarker Research in Medicine, 8010 Graz, Austria
| | - Ivan Vidakovic
- Gottfried Schatz Research Center (for Cell Signaling, Metabolism and Aging), Division of Biophysics, Medical University of Graz, 8010 Graz, Austria; (I.V.); (R.P.)
| | - Ruth Prassl
- Gottfried Schatz Research Center (for Cell Signaling, Metabolism and Aging), Division of Biophysics, Medical University of Graz, 8010 Graz, Austria; (I.V.); (R.P.)
| | - Joakim Franz
- Department of Internal Medicine, Division of Endocrinology and Diabetology, Medical University of Graz, 8036 Graz, Austria; (C.W.H.); (J.F.); (S.I.M.); (B.O.-P.); (P.K.)
- CBmed GmbH—Center for Biomarker Research in Medicine, 8010 Graz, Austria
| | - Selma I. Mautner
- Department of Internal Medicine, Division of Endocrinology and Diabetology, Medical University of Graz, 8036 Graz, Austria; (C.W.H.); (J.F.); (S.I.M.); (B.O.-P.); (P.K.)
- HEALTH—Institute for Biomedicine and Health Sciences, JOANNEUM RESEARCH Forschungsgesellschaft mbH, 8010 Graz, Austria; (S.K.); (T.B.)
| | - Sonja Kainz
- HEALTH—Institute for Biomedicine and Health Sciences, JOANNEUM RESEARCH Forschungsgesellschaft mbH, 8010 Graz, Austria; (S.K.); (T.B.)
| | - Elisabeth Hofmann
- Department of Surgery, Division of Plastic, Aesthetic and Reconstructive Surgery, Medical University of Graz, 8036 Graz, Austria;
| | - Barbara Obermayer-Pietsch
- Department of Internal Medicine, Division of Endocrinology and Diabetology, Medical University of Graz, 8036 Graz, Austria; (C.W.H.); (J.F.); (S.I.M.); (B.O.-P.); (P.K.)
| | - Thomas Birngruber
- HEALTH—Institute for Biomedicine and Health Sciences, JOANNEUM RESEARCH Forschungsgesellschaft mbH, 8010 Graz, Austria; (S.K.); (T.B.)
| | - Petra Kotzbeck
- Department of Internal Medicine, Division of Endocrinology and Diabetology, Medical University of Graz, 8036 Graz, Austria; (C.W.H.); (J.F.); (S.I.M.); (B.O.-P.); (P.K.)
- Department of Surgery, Division of Plastic, Aesthetic and Reconstructive Surgery, Medical University of Graz, 8036 Graz, Austria;
- COREMED—Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, 8010 Graz, Austria
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