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Mbadu Lelo S, Musungayi Kajingulu FP, Makulo JR, Mayamba Nlandu Y, Busanga Bukabau J, Koso Mbulupasu P, Luzayadio Longo A, Losa Luse JN, Momeme Mokoli V, Kiswaya Sumaili E, Mangani Nseka N. 25 [OH] Vitamin D and Intact Parathyroid Hormone in Congolese Hemodialysis Patients: Evaluation of KDIGO Targets. Int J Nephrol Renovasc Dis 2024; 17:71-79. [PMID: 38405026 PMCID: PMC10887870 DOI: 10.2147/ijnrd.s440809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 02/14/2024] [Indexed: 02/27/2024] Open
Abstract
Background Data on 25 [OH] vitamin D and intact parathyroid hormone [iPTH] in hemodialysis patients are very limited in sub-Saharan African countries. The present study aimed to assess the magnitude of hypovitaminosis D, and to evaluate the achievement of iPTH KDIGO 2017 targets among chronic hemodialysis patients followed in Kinshasa. Methods We conducted a multicenter cross-sectional study in 6 hospitals in Kinshasa. All patients followed on hemodialysis for more than 3 months were included. Hypovitaminosis D was defined as <30 ng/mL (insufficiency = 20-29 ng/mL; deficiency if <20 ng/mL) and the targets for iPTH values were based on the 2017 KDIGO guidelines. The determinants for hypovitaminosis D were evaluated by logistic regression. Results 251 patients [mean age 56 ± 14 years, 72.5% men, 63% hypertensive, 31% diabetic, 100% supplemented with native 25 [OH] vitamin D + CaCO3 were included. Hypovitaminosis D was found in 79.7% (deficiency 47.4%) and was associated with the male gender aOR 2.7 [1.4-5.2], p = 0.004, the low-permeability dialyzer 2.2 [1.1-4.2], p = 0.025 and anemia 3.9 [1.2-12.7], p = 0.022. Only 40% of patients with 25 [OH] vitamin D deficiency had iPTH according to KDIGO targets vs 6% of patients with severe hyperparathyroidism (iPTH > 600 pg/mL), 45% with levels between 16 and 150 pg/mL and 9% a iPTH ≤ 15 pg/mL. Conclusion Despite a sunny environment, a large proportion of Congolese hemodialysis patients have hypovitaminosis D, in particular a deficiency. Among them, less than half have target iPTH values. These results show the benefit of regular monitoring of these parameters in order to optimize treatment.
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Affiliation(s)
- Samuel Mbadu Lelo
- Hemodialysis Center, Division of Nephrology, Kinshasa University Hospital, Kinshasa, Democratic Republic of the Congo
- Hemodialysis Center, Ngaliema Medical Center, Kinshasa, Democratic Republic of the Congo
| | - François-Pantaléon Musungayi Kajingulu
- Hemodialysis Center, Division of Nephrology, Kinshasa University Hospital, Kinshasa, Democratic Republic of the Congo
- Dialysis Center, HJ Hospital, Kinshasa, Democratic Republic of the Congo
- Department of Internal Medicine, Saint-Joseph Hospital, Kinshasa, Democratic Republic of the Congo
| | - Jean-Robert Makulo
- Hemodialysis Center, Division of Nephrology, Kinshasa University Hospital, Kinshasa, Democratic Republic of the Congo
- Hemodialysis Center, Ngaliema Medical Center, Kinshasa, Democratic Republic of the Congo
| | - Yannick Mayamba Nlandu
- Hemodialysis Center, Division of Nephrology, Kinshasa University Hospital, Kinshasa, Democratic Republic of the Congo
- Hemodialysis Center, Centre Médical de Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Justine Busanga Bukabau
- Hemodialysis Center, Division of Nephrology, Kinshasa University Hospital, Kinshasa, Democratic Republic of the Congo
- Hemodialysis Center, Centre Médical de Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Pierre Koso Mbulupasu
- Hemodialysis Center, Division of Nephrology, Kinshasa University Hospital, Kinshasa, Democratic Republic of the Congo
- Department of Internal Medicine, Clinique Ngaliema, Kinshasa, Democratic Republic of the Congo
| | - Augustin Luzayadio Longo
- Hemodialysis Center, Division of Nephrology, Kinshasa University Hospital, Kinshasa, Democratic Republic of the Congo
| | - Jeanine Nina Losa Luse
- Hemodialysis Center, Hôpital Général de Référence de Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Vieux Momeme Mokoli
- Hemodialysis Center, Division of Nephrology, Kinshasa University Hospital, Kinshasa, Democratic Republic of the Congo
- Hemodialysis Center, Ngaliema Medical Center, Kinshasa, Democratic Republic of the Congo
| | - Ernest Kiswaya Sumaili
- Hemodialysis Center, Division of Nephrology, Kinshasa University Hospital, Kinshasa, Democratic Republic of the Congo
| | - Nazaire Mangani Nseka
- Hemodialysis Center, Division of Nephrology, Kinshasa University Hospital, Kinshasa, Democratic Republic of the Congo
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Zamudio Díaz DF, Busch L, Kröger M, Klein AL, Lohan SB, Mewes KR, Vierkotten L, Witzel C, Rohn S, Meinke MC. Significance of melanin distribution in the epidermis for the protective effect against UV light. Sci Rep 2024; 14:3488. [PMID: 38347037 PMCID: PMC10861496 DOI: 10.1038/s41598-024-53941-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 02/06/2024] [Indexed: 02/15/2024] Open
Abstract
Melanin, the most abundant skin chromophore, is produced by melanocytes and is one of the key components responsible for mediating the skin's response to ultraviolet radiation (UVR). Because of its antioxidant, radical scavenging, and broadband UV absorbing properties, melanin reduces the penetration of UVR into the nuclei of keratinocytes. Despite its long-established photoprotective role, there is evidence that melanin may also induce oxidative DNA damage in keratinocytes after UV exposure and therefore be involved in the development of melanoma. The present work aimed at evaluating the dependence of UV-induced DNA damage on melanin content and distribution, using reconstructed human epidermis (RHE) models. Tanned and light RHE were irradiated with a 233 nm UV-C LED source at 60 mJ/cm2 and a UV lamp at 3 mJ/cm2. Higher UV-mediated free radicals and DNA damage were detected in tanned RHE with significantly higher melanin content than in light RHE. The melanin distribution in the individual models can explain the lack of photoprotection. Fluorescence lifetime-based analysis and Fontana-Masson staining revealed a non-homogeneous distribution and absence of perinuclear melanin in the tanned RHE compared to the in vivo situation in humans. Extracellularly dispersed epidermal melanin interferes with photoprotection of the keratinocytes.
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Affiliation(s)
- Daniela F Zamudio Díaz
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Institute of Food Technology and Food Chemistry, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355, Berlin, Germany
| | - Loris Busch
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Department of Pharmaceutics and Biopharmaceutics, Philipps-Universität Marburg, Robert-Koch-Str. 4, 35032, Marburg, Germany
| | - Marius Kröger
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Anna Lena Klein
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Silke B Lohan
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Karsten R Mewes
- Henkel AG & Co. KGaA, Henkelstr. 67, 40589, Düsseldorf, Germany
| | - Lars Vierkotten
- Henkel AG & Co. KGaA, Henkelstr. 67, 40589, Düsseldorf, Germany
| | - Christian Witzel
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Sascha Rohn
- Institute of Food Technology and Food Chemistry, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355, Berlin, Germany
| | - Martina C Meinke
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany.
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53
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Adamus-Grabicka AA, Hikisz P, Sikora J. Nanotechnology as a Promising Method in the Treatment of Skin Cancer. Int J Mol Sci 2024; 25:2165. [PMID: 38396841 PMCID: PMC10889690 DOI: 10.3390/ijms25042165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
The incidence of skin cancer continues to grow. There are an estimated 1.5 million new cases each year, of which nearly 350,000 are melanoma, which is often fatal. Treatment is challenging and often ineffective, with conventional chemotherapy playing a limited role in this context. These disadvantages can be overcome by the use of nanoparticles and may allow for the early detection and monitoring of neoplastic changes and determining the effectiveness of treatment. This article briefly reviews the present understanding of the characteristics of skin cancers, their epidemiology, and risk factors. It also outlines the possibilities of using nanotechnology, especially nanoparticles, for the transport of medicinal substances. Research over the previous decade on carriers of active substances indicates that drugs can be delivered more accurately to the tumor site, resulting in higher therapeutic efficacy. The article describes the application of liposomes, carbon nanotubes, metal nanoparticles, and polymer nanoparticles in existing therapies. It discusses the challenges encountered in nanoparticle therapy and the possibilities of improving their performance. Undoubtedly, the use of nanoparticles is a promising method that can help in the fight against skin cancer.
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Affiliation(s)
- Angelika A. Adamus-Grabicka
- Department of Bioinorganic Chemistry, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland;
| | - Pawel Hikisz
- Department of Oncobiology and Epigenetics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland;
| | - Joanna Sikora
- Department of Bioinorganic Chemistry, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland;
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Harvey VM, Alexis A, Okeke CAV, McKinley-Grant L, Taylor SC, Desai SR, Jaleel T, Heath CR, Kang S, Vashi N, Lester J, Vasquez R, Rodrigues M, Elbuluk N, Hamzavi I, Kwatra SG, Sundaram H, Cobb C, Brown SG, Kohli I, Callender VD. Integrating skin color assessments into clinical practice and research: A review of current approaches. J Am Acad Dermatol 2024:S0190-9622(24)00215-9. [PMID: 38342247 DOI: 10.1016/j.jaad.2024.01.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 01/26/2024] [Accepted: 01/28/2024] [Indexed: 02/13/2024]
Abstract
Skin color classification can have importance in skin health, pigmentary disorders, and oncologic condition assessments. It is also critical for evaluating disease course and response to a variety of therapeutic interventions and aids in accurate classification of participants in clinical research studies. A panel of dermatologists conducted a literature review to assess the strengths and limitations of existing classification scales, as well as to compare their preferences and utilities. We identified 17 skin classification systems utilized in dermatologic settings. These systems include a range of parameters such as UV light reactivity, race, ethnicity, and degree of pigmentation. The Fitzpatrick skin type classification is most widely used and validated. However it has numerous limitations including its conflation with race, ethnicity, and skin color. There is a lack of validation data available for the remaining scales. There are significant deficiencies in current skin classification instruments. Consensus-based initiatives to drive the development of validated and reliable tools are critically needed.
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Affiliation(s)
- Valerie M Harvey
- Director, Hampton Roads Center for Dermatology, Newport News, Virginia; President, Skin of Color Society, Newport News, Virginia.
| | - Andrew Alexis
- Clinical Dermatology, Weill Cornell Medical College, New York, New York
| | - Chidubem A V Okeke
- Department of Dermatology, Howard University College of Medicine, Washington, District of Columbia
| | - Lynn McKinley-Grant
- Department of Dermatology, Howard University College of Medicine, Washington, District of Columbia
| | - Susan C Taylor
- Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Seemal R Desai
- Department of Dermatology, University of Texas Southwestern Medical Center, Dallas, Texas; Innovative Dermatology, Dallas, Texas
| | - Tarannum Jaleel
- Department of Dermatology, Duke University School of Medicine, Durham, North Carolina
| | - Candrice R Heath
- Department of Dermatology, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | - Sewon Kang
- Department of Dermatology, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Neelam Vashi
- Department of Dermatology, Boston University School of Medicine, Boston, Massachusetts
| | - Jenna Lester
- Department of Dermatology, School of Medicine, University of California, San Francisco, California
| | | | - Michelle Rodrigues
- Department of Dermatology, Royal Children's Hospital, Victoria, Australia
| | - Nada Elbuluk
- Department of Dermatology, Keck Medicine, University of Southern California, Los Angeles, California
| | - Iltefat Hamzavi
- Department of Dermatology, Henry Ford Hospital, Detroit, Michigan
| | - Shawn G Kwatra
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Hema Sundaram
- Private Practice, Rockville, Maryland; Private Practice, Fairfax, Virginia; Musculoskeletal and Dermatological Sciences, School of Biological Sciences, University of Manchester, Manchester, United Kingdom
| | - Caryn Cobb
- Department of Dermatology, The Warren Alpert Medical School of Brown University, Providence, Rhode Island
| | - Stafford G Brown
- Department of Internal Medicine, Eastern Virginia Medical School, Norfolk, Virginia
| | - Indermeet Kohli
- The Henry W Lim, MD, Division of Photobiology and Photomedicine, Department of Dermatology, Henry Ford Health, Detroit, Michigan; Department of Physics and Astronomy, Wayne State University, Detroit, Michigan
| | - Valerie D Callender
- Department of Dermatology, Howard University College of Medicine, Washington, District of Columbia
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55
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Sachedina D, Gibson F, Xia E, Walia A, Behara L, Fazelpour S, Mullins H, Francis J, Sahni D. Skin cancer in renal transplant recipients: outcomes from a safety net hospital in Boston. Int J Dermatol 2024. [PMID: 38328999 DOI: 10.1111/ijd.17061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 02/09/2024]
Abstract
BACKGROUND Renal transplant recipients (RTRs) are prone to skin cancer due to the immunosuppression required to maintain graft function. Existing studies of skin cancer in RTRs focus on patients with Fitzpatrick skin types I-II, with limited documentation of incidence in skin types III-VI. This study seeks to better characterize skin cancers in RTRs with skin types III-VI. PRIMARY AIMS Compare the incidence of skin cancer in RTRs of skin types I-II with skin types III-VI. SECONDARY AIMS Explore the association between the development of skin cancer and other contributing factors in RTRs of skin types I-VI. METHODS Retrospective chart review of RTRs at a single institution between January 1, 2000 and December 31, 2022. Patients were followed from the date of transplant to the last clinical follow-up or death. 777 RTRs were included in the study, including 245 patients with Fitzpatrick skin types I-II and 532 with skin types III-VI. A total of 48 patients developed NMSCs, 2 patients developed melanoma, and 3 patients developed Kaposi sarcoma. RESULTS AND CONCLUSIONS There is a higher incidence of skin cancer in RTRs with Fitzpatrick skin types III-VI compared to the reported incidence among non-transplant recipients of the same skin types, but the incidence remains considerably lower compared to RTR of skin types I-II.
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Affiliation(s)
- Dilshad Sachedina
- Department of Dermatology, Boston University School of Medicine, Boston, MA, USA
| | - Frederick Gibson
- Department of Dermatology, Boston University School of Medicine, Boston, MA, USA
| | - Eric Xia
- Department of Dermatology, Boston University School of Medicine, Boston, MA, USA
| | - Anika Walia
- Department of Dermatology, Boston University School of Medicine, Boston, MA, USA
| | - Laxmi Behara
- Department of Dermatology, Boston University School of Medicine, Boston, MA, USA
| | - Sherwin Fazelpour
- Department of Dermatology, Boston University School of Medicine, Boston, MA, USA
| | - Haley Mullins
- Department of Dermatology, Boston University School of Medicine, Boston, MA, USA
| | - Jean Francis
- Department of Nephrology, Boston University School of Medicine, Boston, MA, USA
| | - Debjani Sahni
- Department of Dermatology, Boston University School of Medicine, Boston, MA, USA
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Menichetti A, Mordini D, Montalti M. Polydopamine Nanosystems in Drug Delivery: Effect of Size, Morphology, and Surface Charge. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:303. [PMID: 38334574 PMCID: PMC10856634 DOI: 10.3390/nano14030303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/10/2024]
Abstract
Recently, drug delivery strategies based on nanomaterials have attracted a lot of interest in different kinds of therapies because of their superior properties. Polydopamine (PDA), one of the most interesting materials in nanomedicine because of its versatility and biocompatibility, has been widely investigated in the drug delivery field. It can be easily functionalized to favor processes like cellular uptake and blood circulation, and it can also induce drug release through two kinds of stimuli: NIR light irradiation and pH. In this review, we describe PDA nanomaterials' performance on drug delivery, based on their size, morphology, and surface charge. Indeed, these characteristics strongly influence the main mechanisms involved in a drug delivery system: blood circulation, cellular uptake, drug loading, and drug release. The understanding of the connections between PDA nanosystems' properties and these phenomena is pivotal to obtain a controlled design of new nanocarriers based on the specific drug delivery applications.
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Affiliation(s)
| | | | - Marco Montalti
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy; (A.M.); (D.M.)
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Souto-Neto JA, David DD, Zanetti G, Sua-Cespedes C, Freret-Meurer NV, Moraes MN, de Assis LVM, Castrucci AMDL. Light-specific wavelengths differentially affect the exploration rate, opercular beat, skin color change, opsin transcripts, and the oxi-redox system of the longsnout seahorse Hippocampus reidi. Comp Biochem Physiol A Mol Integr Physiol 2024; 288:111551. [PMID: 37972916 DOI: 10.1016/j.cbpa.2023.111551] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/19/2023]
Abstract
Light is a strong stimulus for the sensory and endocrine systems. The opsins constitute a large family of proteins that can respond to specific light wavelengths. Hippocampus reidi is a near-threatened seahorse that has a diverse color pattern and sexual dimorphism. Over the years, H. reidi's unique characteristics, coupled with its high demand and over-exploitation for the aquarium trade, have raised concerns about its conservation, primarily due to their significant impact on wild populations. Here, we characterized chromatophore types in juvenile and adult H. reidi in captivity, and the effects of specific light wavelengths with the same irradiance (1.20 mW/cm2) on color change, growth, and survival rate. The xanthophores and melanophores were the major components of H. reidi pigmentation with differences in density and distribution between life stages and sexes. In the eye and skin of juveniles, the yellow (585 nm) wavelength induced a substantial increase in melanin levels compared to the individuals kept under white light (WL), blue (442 nm), or red (650 nm) wavelengths. In addition, blue and yellow wavelengths led to a higher juvenile mortality rate in comparison to the other treatments. Adult seahorses showed a rhythmic color change over 24 h, the highest reflectance values were obtained in the light phase, representing a daytime skin lightening for individuals under WL, blue and yellow wavelength, with changes in the acrophase. The yellow wavelength was more effective on juvenile seahorse pigmentation, while the blue wavelength exerted a stronger effect on the regulation of adult physiological color change. Dramatic changes in the opsin mRNA levels were life stage-dependent, which may infer ontogenetic opsin functions throughout seahorses' development. Exposure to specific wavelengths differentially affected the opsins mRNA levels in the skin and eyes of juveniles. In the juveniles, skin transcripts of visual (rh1, rh2, and lws) and non-visual opsins (opn3 and opn4x) were higher in individuals under yellow light. While in the juvenile's eyes, only rh1 and rh2 had increased transcripts influenced by yellow light; the lws and opn3 mRNA levels were higher in juveniles' eyes under WL. Prolonged exposure to yellow wavelength stimulates a robust increase in the antioxidant enzymes sod1 and sod2 mRNA levels. Our findings indicate that changes in the visible light spectrum alter physiological processes at different stages of life in H. reidi and may serve as the basis for a broader discussion about the implications of artificial light for aquatic species in captivity.
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Affiliation(s)
- José Araújo Souto-Neto
- Laboratory of Comparative Physiology of Pigmentation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil; Laboratory of Micropollutants, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Daniela Dantas David
- Laboratory of Comparative Physiology of Pigmentation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Giovanna Zanetti
- Laboratory of Comparative Physiology of Pigmentation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Cristhian Sua-Cespedes
- Laboratory of Comparative Physiology of Pigmentation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | | | - Maria Nathália Moraes
- Laboratory of Molecular Chronobiology, Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, São Paulo, Brazil
| | | | - Ana Maria de Lauro Castrucci
- Laboratory of Comparative Physiology of Pigmentation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil; Department of Biology, University of Virginia, Charlottesville, United States.
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Taraszka K, Groha S, King D, Tell R, White K, Ziv E, Zaitlen N, Gusev A. A comprehensive analysis of clinical and polygenic germline influences on somatic mutational burden. Am J Hum Genet 2024; 111:242-258. [PMID: 38211585 PMCID: PMC10870141 DOI: 10.1016/j.ajhg.2023.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 01/13/2024] Open
Abstract
Tumor mutational burden (TMB), the total number of somatic mutations in the tumor, and copy number burden (CNB), the corresponding measure of aneuploidy, are established fundamental somatic features and emerging biomarkers for immunotherapy. However, the genetic and non-genetic influences on TMB/CNB and, critically, the manner by which they influence patient outcomes remain poorly understood. Here, we present a large germline-somatic study of TMB/CNB with >23,000 individuals across 17 cancer types, of which 12,000 also have extensive clinical, treatment, and overall survival (OS) measurements available. We report dozens of clinical associations with TMB/CNB, observing older age and male sex to have a strong effect on TMB and weaker impact on CNB. We additionally identified significant germline influences on TMB/CNB, including fine-scale European ancestry and germline polygenic risk scores (PRSs) for smoking, tanning, white blood cell counts, and educational attainment. We quantify the causal effect of exposures on somatic mutational processes using Mendelian randomization. Many of the identified features associated with TMB/CNB were additionally associated with OS for individuals treated at a single tertiary cancer center. For individuals receiving immunotherapy, we observed a complex relationship between PRSs for educational attainment, self-reported college attainment, TMB, and survival, suggesting that the influence of this biomarker may be substantially modified by socioeconomic status. While the accumulation of somatic alterations is a stochastic process, our work demonstrates that it can be shaped by host characteristics including germline genetics.
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Affiliation(s)
- Kodi Taraszka
- Department of Computer Science, University of California, Los Angeles, CA 90095, USA; Department of Medical Oncology, Dana-Farber Cancer Institute & Harvard Medical School, Boston, MA 02215, USA.
| | - Stefan Groha
- Department of Medical Oncology, Dana-Farber Cancer Institute & Harvard Medical School, Boston, MA 02215, USA; Program in Medical and Population Genetics, Broad Institute, Cambridge, MA 02142, USA
| | - David King
- Tempus Labs, Inc, Chicago, IL 60654, USA
| | | | | | - Elad Ziv
- Department of Medicine, University of California San Francisco Helen Diller Family Comprehensive Cancer Center, San Francisco, CA 94158, USA
| | - Noah Zaitlen
- Department of Neurology, University of California, Los Angeles, CA 90095, USA
| | - Alexander Gusev
- Department of Medical Oncology, Dana-Farber Cancer Institute & Harvard Medical School, Boston, MA 02215, USA; Program in Medical and Population Genetics, Broad Institute, Cambridge, MA 02142, USA.
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59
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Flieger J, Raszewska-Famielec M, Radzikowska-Büchner E, Flieger W. Skin Protection by Carotenoid Pigments. Int J Mol Sci 2024; 25:1431. [PMID: 38338710 PMCID: PMC10855854 DOI: 10.3390/ijms25031431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
Sunlight, despite its benefits, can pose a threat to the skin, which is a natural protective barrier. Phototoxicity caused by overexposure, especially to ultraviolet radiation (UVR), results in burns, accelerates photoaging, and causes skin cancer formation. Natural substances of plant origin, i.e., polyphenols, flavonoids, and photosynthetic pigments, can protect the skin against the effects of radiation, acting not only as photoprotectors like natural filters but as antioxidant and anti-inflammatory remedies, alleviating the effects of photodamage to the skin. Plant-based formulations are gaining popularity as an attractive alternative to synthetic filters. Over the past 20 years, a large number of studies have been published to assess the photoprotective effects of natural plant products, primarily through their antioxidant, antimutagenic, and anti-immunosuppressive activities. This review selects the most important data on skin photodamage and photoprotective efficacy of selected plant carotenoid representatives from in vivo studies on animal models and humans, as well as in vitro experiments performed on fibroblast and keratinocyte cell lines. Recent research on carotenoids associated with lipid nanoparticles, nanoemulsions, liposomes, and micelles is reviewed. The focus was on collecting those nanomaterials that serve to improve the bioavailability and stability of carotenoids as natural antioxidants with photoprotective activity.
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Affiliation(s)
- Jolanta Flieger
- Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, Poland
| | - Magdalena Raszewska-Famielec
- Faculty of Physical Education and Health, University of Physicl Education, Akademicka 2, 21-500 Biała Podlaska, Poland;
| | - Elżbieta Radzikowska-Büchner
- Department of Plastic, Reconstructive and Maxillary Surgery, National Medical Institute of the Ministry of the Interior and Administration, Wołoska 137 Street, 02-507 Warszawa, Poland;
| | - Wojciech Flieger
- Chair and Department of Anatomy, Medical University of Lublin, K. Jaczewskiego 4, 20-090 Lublin, Poland;
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El-Zawawy NA, Kenawy ER, Ahmed S, El-Sapagh S. Bioproduction and optimization of newly characterized melanin pigment from Streptomyces djakartensis NSS-3 with its anticancer, antimicrobial, and radioprotective properties. Microb Cell Fact 2024; 23:23. [PMID: 38229042 DOI: 10.1186/s12934-023-02276-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 12/15/2023] [Indexed: 01/18/2024] Open
Abstract
BACKGROUND Melanin is a natural pigment that is considered a promising biomaterial for numerous biotechnological applications across several industries. Melanin has biomedical applications as antimicrobial, anticancer, and antioxidant properties. Additionally, in the pharmaceutical and cosmetic industries, it is used in drug delivery and as a radioprotective agent. Also, melanin has environmental uses in the fields of bioremediation and the food industry. The biosynthesis of melanin pigment is an area of interest for researchers due to its multifunctionality, high compatibility, and biodegradability. Therefore, our present work is the first attempt to characterize and optimize the productivity of melanin pigment from Streptomyces djakartensis NSS-3 concerning its radioprotection and biological properties. RESULTS Forty isolates of soil actinobacteria were isolated from the Wadi Allaqui Biosphere Reserve, Egypt. Only one isolate, ACT3, produced a dark brown melanin pigment extracellularly. This isolate was identified according to phenotypic properties and molecular phylogenetic analysis as Streptomyces djakartensis NSS-3 with accession number OP912881. Plackett-Burman experimental design (PBD) and response surface methodology (RSM) using a Box-Behnken design (BBD) were performed for optimum medium and culturing conditions for maximum pigment production, resulting in a 4.19-fold improvement in melanin production (118.73 mg/10 mL). The extracted melanin pigment was purified and characterized as belonging to nitrogen-free pyomelanin based on ultraviolet-visible spectrophotometry (UV-VIS), Fourier transform infrared (FT-IR), Raman spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and NMR studies. Purified melanin demonstrated potent scavenging activity with IC50 values of 18.03 µg/mL and revealed high potency as sunscreens (in vitro SPF = 18.5). Moreover, it showed a nontoxic effect on a normal cell line (WI38), while it had a concentration-dependent anticancer effect on HCT116, HEPG, and MCF7 cell lines with IC50 = 108.9, 43.83, and 81.99 µg/mL, respectively. Also, purified melanin had a detrimental effect on the tested MDR bacterial strains, of which PA-09 and SA-04 were clearly more susceptible to melanin compared with other strains with MICs of 6.25 and 25 µg/mL, respectively. CONCLUSION Our results demonstrated that the newly characterized pyomelanin from Streptomyces djakartensis NSS-3 has valuable biological properties due to its potential photoprotective, antioxidant, anticancer, antimicrobial, and lack of cytotoxic activities, which open up new prospects for using this natural melanin pigment in various biotechnological applications and avoiding chemical-based drugs.
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Affiliation(s)
- Nessma A El-Zawawy
- Department of Botany and Microbiology, Faculty of Science, Tanta University, Tanta, Egypt.
| | - El-Refaie Kenawy
- Chemistry Department, Polymer Research Unit, Faculty of Science, Tanta University, Tanta, Egypt
| | - Sara Ahmed
- Department of Botany and Microbiology, Faculty of Science, Tanta University, Tanta, Egypt
| | - Shimaa El-Sapagh
- Department of Botany and Microbiology, Faculty of Science, Tanta University, Tanta, Egypt
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Jung Park Y, Jin Jung H, Jin Kim H, Soo Park H, Lee J, Yoon D, Kyung Kang M, Young Kim G, Ullah S, Kang D, Park Y, Chun P, Young Chung H, Ryong Moon H. Thiazol-4(5H)-one analogs as potent tyrosinase inhibitors: Synthesis, tyrosinase inhibition, antimelanogenic effect, antioxidant activity, and in silico docking simulation. Bioorg Med Chem 2024; 98:117578. [PMID: 38154348 DOI: 10.1016/j.bmc.2023.117578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/14/2023] [Accepted: 12/23/2023] [Indexed: 12/30/2023]
Abstract
As the β-phenyl-α,β-unsaturated carbonyl (PUSC) structure was previously identified to play a key role in tyrosinase inhibition, 14 analogs with a PUSC structure built on a thiazol-4(5H)-one scaffold were synthesized using Knoevenagel condensation to serve as potential tyrosinase inhibitors. Through mushroom tyrosinase inhibition experiments, two analogs 9 and 11 were identified as potent tyrosinase inhibitors, with 11 exhibiting an IC50 value of 0.4 ± 0.01 μM, which indicates its 26-fold greater potency than kojic acid. Kinetic studies using Lineweaver-Burk plots revealed that 9 and 11 are competitive and mixed-type inhibitors, respectively; these kinetic results were supported by docking simulations. According to the B16F10 cell-based experiments, 9 and 11 inhibited melanogenesis more effectively than kojic acid due to their potent cellular tyrosinase inhibitory activity. In addition, analogs 9 and 11 exhibited moderate-to-strong antioxidant capacity, scavenging ABTS+, DPPH, and ROS radicals. In particular, analog 12 with a catechol moiety exhibited very strong ROS-scavenging activity, similar to Trolox. These results suggest that analogs 9 and 11, which exhibit potent tyrosinase inhibitory activity in mushroom and mammalian cells and anti-melanogenic effects in B16F10 cells, are promising antibrowning agents for crops and skin lightening agents for hyperpigmentation-related diseases.
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Affiliation(s)
- Yu Jung Park
- Department of Manufacturing Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - Hee Jin Jung
- Department of Manufacturing Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - Hye Jin Kim
- Department of Manufacturing Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - Hye Soo Park
- Department of Manufacturing Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - Jieun Lee
- Department of Manufacturing Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - Dahye Yoon
- Department of Manufacturing Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - Min Kyung Kang
- Department of Manufacturing Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - Ga Young Kim
- Department of Manufacturing Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - Sultan Ullah
- Department of Molecular Medicine, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, Jupiter, FL 33458, USA
| | - Dongwan Kang
- Department of Medicinal Chemistry, New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, South Korea
| | - Yujin Park
- Department of Medicinal Chemistry, New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, South Korea
| | - Pusoon Chun
- College of Pharmacy and Inje Institute of Pharmaceutical Sciences and Research, Inje University, Gimhae, Gyeongnam 50834, South Korea
| | - Hae Young Chung
- Department of Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - Hyung Ryong Moon
- Department of Manufacturing Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea.
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Le TN, Tran NTH, Pham VNT, Van-Thi ND, Tran HTM. Anti-ultraviolet, antibacterial, and biofilm eradication activities against Cutibacterium acnes of melanins and melanin derivatives from Daedaleopsis tricolor and Fomes fomentarius. Front Microbiol 2024; 14:1305778. [PMID: 38260905 PMCID: PMC10803019 DOI: 10.3389/fmicb.2023.1305778] [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: 10/02/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Fomes fomentarius and Daedaleopsis tricolor produced significant amounts of water-insoluble melanins, and our previous study successfully enhanced their water solubility by arginine modification. This research aimed to investigate the anti-ultraviolet, antibacterial, and biofilm eradication activities of both the melanins and arginine-modified melanin (melanin derivatives) from these two fungi against an acne-causing bacterium (Cutibacterium acnes). Apart from these, the cytotoxicity of the melanins and melanin derivatives on human skin cells was also evaluated. Melanin derivatives of both two fungi showed significantly higher antibacterial and biofilm eradication activities compared with their original forms. Specifically, the MIC50 values of the melanin derivatives (1,000 μg/mL) are the same as those of erythromycin. Regarding biofilm eradication capacity, the MBEC50 value of D. tricolor melanin derivative (250 μg/mL) was just half of both erythromycin and F. fomentarius melanin derivative. However, it required a 2-fold higher concentration of melanin derivatives than erythromycin to inhibit 90% of the bacterial population and eradicate 90% of their biofilm. Regarding anti-ultraviolet activity, blending melanins or melanin derivatives with a moisturizer/sunscreen enhanced their UV light absorption and the sun protection factor (SPF) values. In addition, melanins showed better effects than their derivatives, and those of D. tricolor were better than F. fomentarius. Remarkably, adding D. tricolor melanin (10%) to a Nivea pure cream could turn this cream into a broad-spectrum sunscreen, with its SPF value and critical wavelength increasing from 7.74 and 338.67 to 14.02 and 377.0, respectively. In addition, adding melanin or a melanin derivative of D. tricolor to an Olay sunscreen enhanced the SPF and the critical wavelength of the sunscreen from 17.25 and 371.67 to 23.82 and 374 and 23.38 and 372, respectively. Notably, melanins and melanin derivatives showed no toxicity in human fibroblasts. The obtained data suggest that arginine modification significantly enhanced the antibacterial and biofilm eradication activities of melanins from D. tricolor and F. fomentarius. However, this is not the case when it comes to their anti-ultraviolet activities. In addition, melanin and melanin derivatives from D. tricolor are potential candidates for anti-acne sunscreen products and are worth further investigation.
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Affiliation(s)
- Tu N. Le
- Applied Microbiology Laboratory, School of Biotechnology, International University – VNU HCM, Linh Trung ward, Thu Duc, Ho Chi Minh City, Vietnam
| | - Ngan T. H. Tran
- Applied Microbiology Laboratory, School of Biotechnology, International University – VNU HCM, Linh Trung ward, Thu Duc, Ho Chi Minh City, Vietnam
| | - Vy N. T. Pham
- Applied Microbiology Laboratory, School of Biotechnology, International University – VNU HCM, Linh Trung ward, Thu Duc, Ho Chi Minh City, Vietnam
| | - Ngoc-Dung Van-Thi
- Applied Microbiology Laboratory, School of Biotechnology, International University – VNU HCM, Linh Trung ward, Thu Duc, Ho Chi Minh City, Vietnam
| | - Hanh T. M. Tran
- Applied Microbiology Laboratory, School of Biotechnology, International University – VNU HCM, Linh Trung ward, Thu Duc, Ho Chi Minh City, Vietnam
- Research Group Experimental Pharmacology (EFAR), Department of Pharmaceutical Chemistry, Drug Analysis and Drug Information (FASC), Center for Neurosciences (C4N), Vrije Universiteit Brussel (VUB), Laarbeeklaan, Brussels, Belgium
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Park HA, Seo H, Kim S, Haq AU, Bae SH, Lee HJ, Ju SH, Tajdozian H, Rahim MA, Ghorbanian F, Barman I, Yoon Y, Jo S, Lee Y, Cho G, Jo H, Kim M, Lee S, Song HY. Clinical effect of Pediococcus acidilactici PMC48 on hyperpigmented skin. J Cosmet Dermatol 2024; 23:215-226. [PMID: 37381171 DOI: 10.1111/jocd.15891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 05/24/2023] [Accepted: 06/14/2023] [Indexed: 06/30/2023]
Abstract
BACKGROUND The excessive production and accumulation of melanin in the epidermal skin layer can result in skin hyperpigmentation and darkening. Current technologies for regulating melanin are based on inhibiting melanin biosynthesis. They have low effectiveness and safety issues. AIMS This study aimed to evaluate the potential role of Pediococcus acidilactici PMC48 as a probiotic strain in medicines and cosmetics for skin treatment. MATERIALS AND METHODS Meanwhile, our research team has reported that P. acidilactici PMC48 strain isolated from sesame leaf kimchi can directly decompose the already synthesized melanin. It can also inhibit melanin biosynthesis. In the present study, we investigated the skin-whitening effect of this strain by arranging an 8-week clinical trial with 22 participants. PMC48 was applied to each participant's artificially UV-induced tanned skin in the clinical trial. Its whitening effect was investigated based on visual evaluation, skin brightness, and melanin index. RESULTS PMC48 showed a significant effect on the artificially induced pigmented skin. The color intensity of the tanned skin was decreased by 47.647%, and skin brightness was increased by 8.098% after the treatment period. PMC48 also significantly decreased the melanin index by 11.818%, indicating its tyrosinase inhibition capacity. Also, PMC48 improved skin moisture content level by 20.943%. Additionally, 16S rRNA-based amplicon sequencing analysis showed a distinct increase in Lactobacillaceae in the skin by up to 11.2% at the family level without affecting other skin microbiota. Furthermore, it showed no toxicity in in vitro or in vivo analyses. DISCUSSION These results indicate that P. acidilactici PMC48 is a promising probiotic strain that can be used to develop medicines and cosmetic products to solve skin-related problems. CONCLUSIONS These results demonstrate that P. acidilactici PMC48 can be a potential probiotic for the cosmetic industry against different skin disorders.
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Affiliation(s)
- Hyun-A Park
- Department of Microbiology and Immunology, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Hoonhee Seo
- Department of Microbiology and Immunology, College of Medicine, Soonchunhyang University, Cheonan, Korea
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan, Korea
| | - Sukyung Kim
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan, Korea
| | - Asad Ul Haq
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan, Korea
| | - Sung Hae Bae
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan, Korea
| | - Hyun-Ji Lee
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan, Korea
| | - Se Hee Ju
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan, Korea
| | - Hanieh Tajdozian
- Department of Microbiology and Immunology, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Md Abdur Rahim
- Department of Microbiology and Immunology, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Fatemeh Ghorbanian
- Department of Microbiology and Immunology, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Indrajeet Barman
- Department of Microbiology and Immunology, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Youjin Yoon
- Department of Microbiology and Immunology, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Sujin Jo
- Department of Microbiology and Immunology, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Youngkyoung Lee
- Department of Microbiology and Immunology, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | | | | | - Mijung Kim
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan, Korea
| | - Saebim Lee
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan, Korea
| | - Ho-Yeon Song
- Department of Microbiology and Immunology, College of Medicine, Soonchunhyang University, Cheonan, Korea
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan, Korea
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Pham TN, Cazier EA, Gormally E, Lawrence P. Valorization of biomass polyphenols as potential tyrosinase inhibitors. Drug Discov Today 2024; 29:103843. [PMID: 38000718 DOI: 10.1016/j.drudis.2023.103843] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/08/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023]
Abstract
Tyrosinases (TYRs; EC 1.14.18.1) catalyze two sequential oxidative reactions of the melanin biosynthesis pathway and play an important role in mammalian pigmentation and enzymatic browning of fruit and vegetables. Inhibition of TYR activity is therefore an attractive target for new drugs and/or food ingredients. In addition, increasing evidence suggests that TYR regulation could be a novel target for treatments of cancer and Parkinson's disease. Biomasses, notably industrial byproducts and biowaste, are good sustainable sources of phytochemicals that may be valorized into bioactive compounds including TYR inhibitors. This review presents potential applications of biomass-derived polyphenols targeting TYR inhibition. Insights into structure-activity relationships of several polyphenols and their glycosides are highlighted. Finally, some remarks and perspectives on research into new TYR inhibitors from biomass waste are provided.
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Affiliation(s)
- Thanh-Nhat Pham
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE: Sciences et Humanités (EA 1598), Lyon, France.
| | - Elisabeth A Cazier
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE: Sciences et Humanités (EA 1598), Lyon, France; Nantes Université, Oniris, GEPEA, UMR 6144, F-44600 Saint-Nazaire, France
| | - Emmanuelle Gormally
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE: Sciences et Humanités (EA 1598), Lyon, France
| | - Philip Lawrence
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE: Sciences et Humanités (EA 1598), Lyon, France
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65
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Yuan J, Li X, Yu S. Global, Regional, and National Incidence Trend Analysis of Malignant Skin Melanoma Between 1990 and 2019, and Projections Until 2034. Cancer Control 2024; 31:10732748241227340. [PMID: 38227397 DOI: 10.1177/10732748241227340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024] Open
Abstract
BACKGROUND The goal of this study was to evaluate the global burden of malignant skin melanoma (MSM) from 1990 to 2019 using MSM-related data from the Global Burden of Disease study. METHODS The incidences' relationships with the social-demographic index (SDI) and human developmental index (HDI) were investigated. To determine significant changes in incidence trends, the joinpoint regression model was used. To demonstrate trends in MSM mortality rates, an Age-Period-Cohort framework was conducted. For the projection of new cases and the age-standardized incidence rate (ASR) of MSM incidence to 2034, the Nordpred method was used. RESULTS In 2019, the ASR incidence per 100, 000 people for MSM was 3.6 (95% UI, 2.6-4.2). MSM prevalence increased in most countries between 1990 and 2019 (average annual percentage change >0). HDI and annual percentage change (APC) (ρ = .63, P < .001), as well as SDI and ASR, had a positive correlation. The total MSM mortality rate declined globally, with an APC of -.61%. Likewise, the mortality rate for the age group of people with ages <77.5 years declined. Predictive analysis demonstrated a declining trend in ASR incidence and a growing number of MSM. CONCLUSION There are significant differences in ASR incidence among regions and countries. Despite decreases in ASR incidence and fatality, MSM remains one of the leading sources of cancer mortality and morbidity globally. MSM necessitates more primary prevention measures and screening in high-risk areas.
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Affiliation(s)
- Jin Yuan
- Department of Orthopedics, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaoyang Li
- Department of Orthopedics, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Shengji Yu
- Department of Orthopedics, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
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Ramon J, Engelen Y, De Keersmaecker H, Goemaere I, Punj D, Mejía Morales J, Bonte C, Berx G, Hoste E, Stremersch S, Lentacker I, De Smedt SC, Raemdonck K, Braeckmans K. Laser-induced vapor nanobubbles for B16-F10 melanoma cell killing and intracellular delivery of chemotherapeutics. J Control Release 2024; 365:1019-1036. [PMID: 38065413 DOI: 10.1016/j.jconrel.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/23/2023] [Accepted: 12/02/2023] [Indexed: 12/25/2023]
Abstract
The most lethal form of skin cancer is cutaneous melanoma, a tumor that develops in the melanocytes, which are found in the epidermis. The treatment strategy of melanoma is dependent on the stage of the disease and often requires combined local and systemic treatment. Over the years, systemic treatment of melanoma has been revolutionized and shifted toward immunotherapeutic approaches. Phototherapies like photothermal therapy (PTT) have gained considerable attention in the field, mainly because of their straightforward applicability in melanoma skin cancer, combined with the fact that these strategies are able to induce immunogenic cell death (ICD), linked with a specific antitumor immune response. However, PTT comes with the risk of uncontrolled heating of the surrounding healthy tissue due to heat dissipation. Here, we used pulsed laser irradiation of endogenous melanin-containing melanosomes to induce cell killing of B16-F10 murine melanoma cells in a non-thermal manner. Pulsed laser irradiation of the B16-F10 cells resulted in the formation of water vapor nanobubbles (VNBs) around endogenous melanin-containing melanosomes, causing mechanical cell damage. We demonstrated that laser-induced VNBs are able to kill B16-F10 cells with high spatial resolution. When looking more deeply into the cell death mechanism, we found that a large part of the B16-F10 cells succumbed rapidly after pulsed laser irradiation, reaching maximum cell death already after 4 h. Practically all necrotic cells demonstrated exposure of phosphatidylserine on the plasma membrane and caspase-3/7 activity, indicative of regulated cell death. Furthermore, calreticulin, adenosine triphosphate (ATP) and high-mobility group box 1 (HMGB1), three key damage-associated molecular patterns (DAMPs) in ICD, were found to be exposed from B16-F10 cells upon pulsed laser irradiation to an extent that exceeded or was comparable to the bona fide ICD-inducer, doxorubicin. Finally, we could demonstrate that VNB formation from melanosomes induced plasma membrane permeabilization. This allowed for enhanced intracellular delivery of bleomycin, an ICD-inducing chemotherapeutic, which further boosted cell death with the potential to improve the systemic antitumor immune response.
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Affiliation(s)
- Jana Ramon
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, 9000 Ghent, Belgium; Biophotonics Research Group, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium.
| | - Yanou Engelen
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Ghent Research Group on Nanomedicines, Ghent University, 9000 Ghent, Belgium.
| | - Herlinde De Keersmaecker
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Ghent Light Microscopy Core Facility, Ghent University, 9000 Ghent, Belgium.
| | - Ilia Goemaere
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, 9000 Ghent, Belgium; Biophotonics Research Group, Ghent University, 9000 Ghent, Belgium.
| | - Deep Punj
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, 9000 Ghent, Belgium; Biophotonics Research Group, Ghent University, 9000 Ghent, Belgium.
| | - Julián Mejía Morales
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, 9000 Ghent, Belgium.
| | - Cédric Bonte
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, 9000 Ghent, Belgium.
| | - Geert Berx
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; VIB Center for Inflammation Research, 9052 Ghent, Belgium; Molecular and Cellular Oncology Laboratory, Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium.
| | - Esther Hoste
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium.
| | - Stephan Stremersch
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, 9000 Ghent, Belgium
| | - Ine Lentacker
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Ghent Research Group on Nanomedicines, Ghent University, 9000 Ghent, Belgium.
| | - Stefaan C De Smedt
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Ghent Research Group on Nanomedicines, Ghent University, 9000 Ghent, Belgium.
| | - Koen Raemdonck
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Ghent Research Group on Nanomedicines, Ghent University, 9000 Ghent, Belgium.
| | - Kevin Braeckmans
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, 9000 Ghent, Belgium; Biophotonics Research Group, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium.
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Chen Q, Liu L, Zhang Y. Vitamin D and wound healing: Assessing skin barrier function and implications for chloasma treatment. Int Wound J 2024; 21:e14541. [PMID: 38272820 PMCID: PMC10789544 DOI: 10.1111/iwj.14541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 11/22/2023] [Accepted: 11/23/2023] [Indexed: 01/27/2024] Open
Abstract
Chloasma, which is distinguished by irregularities in the pigmentation of skin, poses substantial challenge in the field of dermatology. The regulatory influence of vitamin D on the functions of skin cells implies that it may have the capacity to effectively treat chloasma and promote wound healing. To assess the efficacy of vitamin D in chloasma treatment and its impact on the function of skin barrier during the process of wound healing. The research spanned from April 2022 to September 2023, in Shanghai, China, examined 480 individuals who had been diagnosed with chloasma. A double-blind, placebo-controlled clinical trial was utilized to evaluate effectiveness of topical vitamin D3 in treatment of chloasma. Concurrently, randomized control trial investigated the effects of ingested vitamin D3 supplements on the process of wound healing. Transepidermal water loss (TEWL), chloasma severity score changes, wound size reduction and skin hydration levels were critical performance indicators. Statistically, the severity scores of chloasma decreased significantly in the vitamin D treatment group at 3 and 6 months compared with the placebo (p < 0.05). The Vitamin D group exhibited superior wound healing outcomes, including more substantial reduction in lesion size and enhanced skin barrier function, as evidenced by increased skin hydration and decreased TEWL (p < 0.05). Vitamin D substantially mitigated the severity of chloasma and has beneficial effect on wound healing and integrity of the skin barrier. Based on the results obtained, vitamin D exhibited promise as a therapeutic intervention in the field of dermatology, specifically in treatment of chloasma and promotion of wound recovery.
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Affiliation(s)
- Qiong Chen
- The Second Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShanghaiChina
| | - Lin Liu
- Dermatology DepartmentJingfu Medical Beauty Hospital of Chunxi Road WardChengduChina
| | - Yi Zhang
- The Second Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShanghaiChina
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Michael AI, Ugwu EO, Olawoye OA, Ademola SA, Oluwatosin OM. Presentation, Clinical Outcome, and Quality of Life of Patients Treated for Head and Neck Skin Cancer at the University College Hospital, Ibadan. JOURNAL OF THE WEST AFRICAN COLLEGE OF SURGEONS 2024; 14:63-68. [PMID: 38486655 PMCID: PMC10936885 DOI: 10.4103/jwas.jwas_67_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 09/22/2023] [Indexed: 03/17/2024]
Abstract
Introduction Patients with head and neck skin cancer experience adverse functional, psychosocial, and financial impacts as a result of the disease and/or its treatment. This study aimed at evaluating the pattern of presentation, clinical outcomes, and quality of life of patients with head and neck skin cancer. Materials and Methods A retrospective cross-sectional study of patients with head and neck skin cancer presenting to the Department of Plastic, Reconstructive & Aesthetic Surgery of the University College Hospital, Ibadan, from January 2017 to December 2021. Data obtained from the clinical records included sociodemographic characteristics, clinical and surgical details, as well as clinical outcomes. Quality of life was assessed using EORTC QLQ-C30 questionnaires. Data were summarized using descriptive statistics. Results Nineteen patients were reviewed with a median age of 38 years (ranging from 18 to 85 years) and a male-to-female ratio of 1:1.4. Eight (42.1%) of the patients were albinos. Squamous cell carcinoma was the predominant histologic type (63.2%), while the scalp was the commonest location (42.1%). Only one patient (5.3%) presented with metastatic disease. A greater percentage of treated patients, eight (61.5%), had surgery as the only treatment modality. After a mean follow-up period of 33 months, a recurrence rate of 10.5% (two patients) and a mortality rate of 15.8% (three patients) were recorded. Quality of life assessment revealed an adverse financial impact of the disease on our patients. Conclusion Although albinism is a recognized risk factor for skin cancers, head and neck skin cancers can occur in the dark-skinned.
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Affiliation(s)
- Afieharo I Michael
- Department of Plastic, Reconstructive and Aesthetic Surgery, University College Hospital, Ibadan, Nigeria
- Department of Surgery, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Ebere O Ugwu
- Department of Plastic, Reconstructive and Aesthetic Surgery, University College Hospital, Ibadan, Nigeria
| | - Olayinka A Olawoye
- Department of Plastic, Reconstructive and Aesthetic Surgery, University College Hospital, Ibadan, Nigeria
- Department of Surgery, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Samuel A Ademola
- Department of Plastic, Reconstructive and Aesthetic Surgery, University College Hospital, Ibadan, Nigeria
- Department of Surgery, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Odunayo M Oluwatosin
- Department of Plastic, Reconstructive and Aesthetic Surgery, University College Hospital, Ibadan, Nigeria
- Department of Surgery, College of Medicine, University of Ibadan, Ibadan, Nigeria
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Li ZY, Chang SH, Liu KT, Wu AE, Hsu CS, Huang SW, Chung MC, Wang SC, Kao JK, Chen YJ, Shieh JJ. Low-dose imiquimod induces melanogenesis in melanoma cells through an ROS-mediated pathway. J Dermatol Sci 2024; 113:18-25. [PMID: 38185543 DOI: 10.1016/j.jdermsci.2023.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/09/2023] [Accepted: 12/20/2023] [Indexed: 01/09/2024]
Abstract
BACKGROUND Melanogenesis is the process of melanin maturation which not only protects skin from UV radiation but also plays an important role in antigenicity of melanomas. Imiquimod (IMQ) is a toll-like receptor 7 (TLR7) agonist that exhibits antiviral and anticancer activity. OBJECTIVE To explore whether IMQ could induce melanogenesis in melanoma cells. METHODS The mouse melanoma cell line B16F10, the mouse immortalized melanocyte Melan-A, and human melanoma cell lines MNT-1, C32 and A375 were utilized in this study. The pigmented level was observed by the centrifuged cell pellet. The intracellular and extracellular melanin levels were examined in the absorbance in NaOH-extracted cell lysate and cell-cultured medium, respectively. The expression of melanogenesis related proteins was examined by immunoblotting. The intracellular cyclic AMP amount was evaluated by the cAMP Glo assay kit. The activity of phosphodiesterase 4B (PDE4B) was investigated by CREB reporter assay with overexpressed PDE4B or not. RESULTS We demonstrated that a low dose of IMQ could trigger melanogenesis in B16F10 cells. IMQ induced microphthalmia-associated transcription factor (MITF) nuclear translocation, upregulated the expression of melanogenesis-related proteins, increased tyrosinase (TYR) activity, and led to pigmentation in B16F10 cells. Next, we found that IMQ-induced melanogenesis was activated by excessive intracellular cAMP accumulation, which was regulated through IMQ-mediated PDE4B inhibition. Finally, IMQ-induced ROS production was found to be involved in melanogenesis by its control of PDE4B activity. CONCLUSIONS Low dose of IMQ could activate melanogenesis through the ROS/PDE4B/PKA pathway in melanoma cells.
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Affiliation(s)
- Zheng-Yi Li
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Shu-Hao Chang
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Kuang-Ting Liu
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan; Department of Pathology & Laboratory Medicine, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan
| | - Alaina Edelie Wu
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Chien-Sheng Hsu
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan; Frontier Molecular Medical Research Center in Children, Changhua Christian Children Hospital, Changhua County, Taiwan
| | - Shi-Wei Huang
- Center for Cell Therapy and Translation Research, China Medical University Hospital, Taichung, Taiwan
| | - Mu-Chi Chung
- Division of Nephrology, Department of Medicine, Taichung Veterans General Hospital, Taichung, Taiwan; PhD Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan; Department of Biotechnology, Asia University, Taichung, Taiwan; Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Shih-Chung Wang
- Division of Pediatric Hematology/Oncology, Changhua Christian Children Hospital, Changhua County, Taiwan
| | - Jun-Kai Kao
- Frontier Molecular Medical Research Center in Children, Changhua Christian Children Hospital, Changhua County, Taiwan; Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Yi-Ju Chen
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan; Department of Dermatology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Jeng-Jer Shieh
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan; Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan; Department of Education and Research, Taichung Veterans General Hospital, Taichung, Taiwan.
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Kim YS, Lee EB, Yu YJ, Kim GW, Kim WJ, Choi DK. Ethyl Acetate Fraction from a Catalpa ovata G. Don Extract Inhibits ɑ-MSH-Induced Melanogenesis through the cAMP/CREB Pathway. Int J Mol Sci 2023; 25:151. [PMID: 38203322 PMCID: PMC10778878 DOI: 10.3390/ijms25010151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
The whitening effect of reducing skin pigmentation is one of the most important goals of cosmetics. The purpose of this study was to determine whether Catalpa ovata extract and its fractions have potential as natural skin-lightening agents. Initially, we screened various fractions of Catalpa ovata extract using an in vitro antioxidant assay. Then, the inhibitory effects of C. ovata extract and its fraction on melanogenesis and the related mechanisms were investigated in B16F1 melanoma cells. The results showed that the ethyl acetate fraction (EF) from C. ovata extract markedly inhibited melanin synthesis in a dose-dependent manner at non-toxic concentrations. Furthermore, EF downregulated both the protein and mRNA levels of tyrosinase, which is a specific enzyme that catalyzes the conversion of tyrosine into melanin. We also found that EF decreased the microphthalmia-associated transcription factor (MITF) at the protein and mRNA levels. EF increased the phosphorylation of ERK and suppressed the phosphorylation of JNK and p38 in ɑ-MSH-induced B16F1 cells. These results indicate that EF can regulate the MAPK pathway. In addition, EF has an anti-melanogenic effect via the downregulation of intracellular cyclic-AMP (cAMP). Nineteen major compounds of EF were identified using LC-MS/MS. Taken together, these results suggest that EF may be a potential anti-melanogenic agent for use in skin-whitening cosmetics and in topical treatments for hyperpigmentation disorders.
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Affiliation(s)
- Yon-Suk Kim
- Department of Biotechnology, Research Institute of Inflammatory Disease (RID), College of Biomedical and Health Science, Konkuk University, Chungju 27478, Republic of Korea
| | - Eun-Bin Lee
- Department of Biotechnology, Research Institute of Inflammatory Disease (RID), College of Biomedical and Health Science, Konkuk University, Chungju 27478, Republic of Korea
| | - Ye-Ji Yu
- Department of Applied Life Sciences, Research Institute (RIBHS), College of Biomedical & Health Science, Graduate School, Konkuk University, Chungju 27478, Republic of Korea
| | - Ga-Won Kim
- Department of Applied Life Sciences, Research Institute (RIBHS), College of Biomedical & Health Science, Graduate School, Konkuk University, Chungju 27478, Republic of Korea
| | - Woo-Jung Kim
- Biocenter, Gyeonggido Business and Science Accelerator, Gwanggyo-ro 147, Yeongtong-gu, Suwon 16229, Republic of Korea
| | - Dong-Kug Choi
- Department of Biotechnology, Research Institute of Inflammatory Disease (RID), College of Biomedical and Health Science, Konkuk University, Chungju 27478, Republic of Korea
- Department of Applied Life Sciences, Research Institute (RIBHS), College of Biomedical & Health Science, Graduate School, Konkuk University, Chungju 27478, Republic of Korea
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Siridechakorn I, Pimpa J, Choodej S, Ngamrojanavanich N, Pudhom K. Synergistic impact of arbutin and kaempferol-7-O-α-L-rhamnopyranoside from Nephelium lappaceum L. on whitening efficacy and stability of cosmetic formulations. Sci Rep 2023; 13:22004. [PMID: 38086982 PMCID: PMC10716148 DOI: 10.1038/s41598-023-49351-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 12/07/2023] [Indexed: 12/18/2023] Open
Abstract
Four flavonoid glycosides, namely quercetin-3-O-rhamnoside (1), kaempferol-3-O-β-D-glucopyranosyl (2), kaempferol-7-O-α-L-rhamnopyranoside (3), and kaempferol-3-O-β-D-glucopyranosyl-7-O-α-L-rhamnopyranoside (4), from Nephelium lappaceum L. seeds were evaluated for their efficacy against melanin inhibition in B16F10 melanoma cells and tyrosinase inhibition. Among them, kaempferol-7-O-α-L-rhamnopyranoside (3) displayed the highest potency in both activities without any significant cytotoxicity. The combination of compound 3 and arbutin in specific proportions demonstrated a synergistic effect (CI < 1) in inhibiting melanin production in B16F10 cells and tyrosinase inhibition. Additionally, a cosmetic formulation containing compound 3 and arbutin as active ingredients exhibited favorable stability under accelerated storage conditions. Quantitative analysis indicated that compound 3 and arbutin levels in the formulation were above 90% after one month of storage. Determination of the formulation's shelf life using the Q10 method, estimating it to be around 5.2 months from the date of manufacture. The synergy between arbutin and kaempferol-7-O-α-L-rhamnopyranoside (3) extracted from N. lappaceum substantially enhances both the whitening effectiveness and the stability of cosmetic formulations.
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Affiliation(s)
- Ittipon Siridechakorn
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Junsuda Pimpa
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Siwattra Choodej
- Department of Chemistry, Faculty of Science, King Mongkut's University of Technology, Thonburi, 10140, Thailand
| | | | - Khanitha Pudhom
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand.
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Boateng ST, Roy T, Torrey K, Owunna U, Banang-Mbeumi S, Basnet D, Niedda E, Alexander AD, Hage DE, Atchimnaidu S, Nagalo BM, Aryal D, Findley A, Seeram NP, Efimova T, Sechi M, Hill RA, Ma H, Chamcheu JC, Murru S. Synthesis, in silico modelling, and in vitro biological evaluation of substituted pyrazole derivatives as potential anti-skin cancer, anti-tyrosinase, and antioxidant agents. J Enzyme Inhib Med Chem 2023; 38:2205042. [PMID: 37184042 PMCID: PMC10187093 DOI: 10.1080/14756366.2023.2205042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 04/16/2023] [Indexed: 05/16/2023] Open
Abstract
Twenty-five azole compounds (P1-P25) were synthesised using regioselective base-metal catalysed and microwave-assisted approaches, fully characterised by high-resolution mass spectrometry (HRMS), nuclear magnetic resonance (NMR), and infrared spectra (IR) analyses, and evaluated for anticancer, anti-tyrosinase, and anti-oxidant activities in silico and in vitro. P25 exhibited potent anticancer activity against cells of four skin cancer (SC) lines, with selectivity for melanoma (A375, SK-Mel-28) or non-melanoma (A431, SCC-12) SC cells over non-cancerous HaCaT-keratinocytes. Clonogenic, scratch-wound, and immunoblotting assay data were consistent with anti-proliferative results, expression profiling therewith implicating intrinsic and extrinsic apoptosis activation. In a mushroom tyrosinase inhibition assay, P14 was most potent among the compounds (half-maximal inhibitory concentration where 50% of cells are dead, IC50 15.9 μM), with activity greater than arbutin and kojic acid. Also, P6 exhibited noteworthy free radical-scavenging activity. Furthermore, in silico docking and absorption, distribution, metabolism, excretion, and toxicity (ADMET) simulations predicted prominent-phenotypic actives to engage diverse cancer/hyperpigmentation-related targets with relatively high affinities. Altogether, promising early-stage hits were identified - some with multiple activities - warranting further hit-to-lead optimisation chemistry with further biological evaluations, towards identifying new skin-cancer and skin-pigmentation renormalising agents.
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Affiliation(s)
- Samuel T. Boateng
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Tithi Roy
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Kara Torrey
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, Bioactive Botanical Research Laboratory, University of Rhode Island, Kingston, RI, USA
| | - Uchechi Owunna
- School of Sciences, College of Arts, Education and Sciences, University of Louisiana at Monroe, Monroe, LA, USA
| | - Sergette Banang-Mbeumi
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
- School of Nursing and Allied Health Sciences, Louisiana Delta Community College, Monroe, LA, USA
| | - David Basnet
- School of Sciences, College of Arts, Education and Sciences, University of Louisiana at Monroe, Monroe, LA, USA
| | - Eleonora Niedda
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Sassari, Italy
| | - Alexis D. Alexander
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Denzel El Hage
- School of Sciences, College of Arts, Education and Sciences, University of Louisiana at Monroe, Monroe, LA, USA
| | - Siriki Atchimnaidu
- School of Sciences, College of Arts, Education and Sciences, University of Louisiana at Monroe, Monroe, LA, USA
| | - Bolni Marius Nagalo
- Department of Pathology, University of Arkansas for Medical Sciences (UAMS), Little Rock, AR, USA
- The Winthrop P. Rockefeller Cancer Institute, UAMS, Little Rock, AR, USA
| | - Dinesh Aryal
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
- Department of Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, Monroe, LA, USA
| | - Ann Findley
- School of Sciences, College of Arts, Education and Sciences, University of Louisiana at Monroe, Monroe, LA, USA
| | - Navindra P. Seeram
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, Bioactive Botanical Research Laboratory, University of Rhode Island, Kingston, RI, USA
| | - Tatiana Efimova
- Department of Biomedical Engineering, Northwestern University, Chicago, IL, USA
| | - Mario Sechi
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Sassari, Italy
| | - Ronald A. Hill
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Hang Ma
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, Bioactive Botanical Research Laboratory, University of Rhode Island, Kingston, RI, USA
| | - Jean Christopher Chamcheu
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Siva Murru
- School of Sciences, College of Arts, Education and Sciences, University of Louisiana at Monroe, Monroe, LA, USA
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Murkey SP, Agarwal A, Pandit P, Kumar S, Jaiswal A. Unveiling the Spectrum of Ophthalmic Manifestations in Nutritional Deficiencies: A Comprehensive Review. Cureus 2023; 15:e50311. [PMID: 38205491 PMCID: PMC10777438 DOI: 10.7759/cureus.50311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/11/2023] [Indexed: 01/12/2024] Open
Abstract
This comprehensive review explores the intricate relationship between nutrition and ocular health, focusing on the crucial roles of essential nutrients like Vitamin A, Vitamin B1 (thiamine), Vitamin B12, Vitamin C, Vitamin D, Vitamin E, Zinc, and Folate (Vitamin B9) in maintaining eye well-being. Nutrient deficiencies have significant consequences, leading to various eye-related issues, from night blindness to age-related conditions such as cataracts and macular degeneration. It is imperative to address these deficiencies, emphasizing the importance of a well-rounded diet with the necessary nutrients. When necessary, supplementation and regular eye examinations are vital components for effectively monitoring ocular health. Public health campaigns and educational initiatives also play a key role in raising awareness about the profound impact of nutrition on eye health. Future research should explore personalized nutrition plans, nutrigenomics, longitudinal studies, and targeted nutritional interventions. Such investigations will not only enhance our understanding of this crucial connection but also have the potential to reduce the global burden of eye diseases.
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Affiliation(s)
- Siddhant P Murkey
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Akash Agarwal
- Surgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Pranam Pandit
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Sunil Kumar
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Arpita Jaiswal
- Obstetrics and Gynaecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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Park AY, Lee JO, Jang Y, Kim YJ, Lee JM, Kim SY, Kim BJ, Yoo KH. Exosomes derived from human dermal fibroblasts protect against UVB‑induced skin photoaging. Int J Mol Med 2023; 52:120. [PMID: 37888610 PMCID: PMC10635689 DOI: 10.3892/ijmm.2023.5323] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 09/27/2023] [Indexed: 10/28/2023] Open
Abstract
Exosomes are used as innovative treatment options for repairing skin defects, such as aging, atopic dermatitis and wounds. However, the effects of exosomes obtained from human foreskin fibroblasts BJ‑5ta (BJ‑5ta Exo) on ultraviolet B (UVB)‑mediated photoaging have not been previously reported, at least to the best of our knowledge. Therefore, the present study aimed to investigate the anti‑photoaging effects of BJ‑5ta Exo on UVB radiation in human skin fibroblasts and SKH‑1 hairless mice. The results revealed that BJ‑5ta Exo decreased the production of reactive oxygen species and inhibited the decrease in the expression levels of superoxide dismutase 1 and 2, glutathione peroxidase and catalase following UVB exposure. In addition, BJ‑5ta Exo attenuated the decrease in nuclear factor erythroid 2‑related factor 2 levels induced by UVB rays, indicating its scavenging activity against oxidative stress. Moreover, BJ‑5ta Exo inhibited the UVB‑induced increase in the levels of γH2AX, p53/21 and cleaved PARP, whereas it promoted DNA double‑strand break repair through radiation sensitive 52 and effectively activated the TGF‑β1/Smad pathway. BJ‑5ta Exo also protected against UVB‑induced senescence, as indicated by the downregulation in the levels of senescence‑associated β‑galactosidase and p16. In a mouse model of photoaging, BJ‑5ta Exo prevented the UVB‑induced increase in transepidermal water loss, wrinkle formation and MMP‑1 expression, while also suppressing the UVB‑mediated decrease in collagen type I and elastin levels in the dorsal skin. Overall, the findings of the present study suggest that BJ‑5ta Exo represent an effective anti‑photoaging agent, which can be used as a component in cosmetic products.
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Affiliation(s)
- A Yeon Park
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jung Ok Lee
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Youna Jang
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Yu-Jin Kim
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jung Min Lee
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Su-Young Kim
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Beom Joon Kim
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Kwang Ho Yoo
- Department of Dermatology, Chung-Ang University Gwang-Myeong Hospital, Chung-Ang University College of Medicine, Gwangmyeong-si, Gyeonggi-do 14353, Republic of Korea
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Park JH, Jo JY, Park H, Kim IH. Dermoscopic and Histopathologic Analysis of the Correlation between the Pigmentation of Basal Cell Carcinoma and Tumor Aggressiveness. Ann Dermatol 2023; 35:451-460. [PMID: 38086359 PMCID: PMC10733081 DOI: 10.5021/ad.23.046] [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: 05/26/2023] [Revised: 07/23/2023] [Accepted: 07/25/2023] [Indexed: 12/22/2023] Open
Abstract
BACKGROUND Basal cell carcinoma (BCC) is the most common type of skin cancer. In patients with darker skin, most BCCs are pigmented. Studies suggest that increased pigmentation in BCC may be inversely associated with tumor aggressiveness. OBJECTIVE This study analyzed the dermoscopic features and histopathologic patterns of BCCs to evaluate the correlation between BCC pigmentation and tumor aggressiveness. METHODS A total of 76 BCC lesions were included in this retrospective study. The Mohs micrographic surgery (MMS) stage and tumor depth were measured as indices of tumor aggressiveness. The Fontana-Masson stain was performed for the identification of melanin, and immunohistochemical analysis was performed using Melan-A and HMB-45 to identify melanocytes. RESULTS In MMS stage 1, the dermoscopic pigmentation value was 34.48%±14.22% (mean±standard deviation). In MMS stages 2 and 3, dermoscopic pigmentations were 13.72%±7.54% and 15.50%±17.52%, respectively. In the logistic regression model, higher dermoscopic pigmentation (95% confidence interval [CI], 0.68~0.99), melanin (95% CI, 0.63~0.89), and melanocyte-stained areas (95% CI, 0.70~0.92) were associated with a lower possibility of BCC tumor infiltration over the middle and lower layers. CONCLUSION We found an inverse correlation between the pigmentation and aggressiveness of BCCs. Clinicians can predict the subclinical infiltration depth of BCC on the basis of the pigmentation observed on dermoscopy. Pigmentation can be considered a favorable prognostic factor for BCC.
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Affiliation(s)
- Jong Heon Park
- Department of Dermatology, Korea University Ansan Hospital, Ansan, Korea
| | - Ju Young Jo
- Department of Dermatology, Korea University Ansan Hospital, Ansan, Korea
| | - Hyunwoo Park
- Department of Dermatology, Korea University Ansan Hospital, Ansan, Korea
| | - Il-Hwan Kim
- Department of Dermatology, Korea University Ansan Hospital, Ansan, Korea.
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Minoretti P, Sáez ASS, Martín ÁFG, Riera ML, Serrano MG, Emanuele E. Skin biophysical parameters and serum dermokine levels in airline pilots: a comparative study with office workers. Postepy Dermatol Alergol 2023; 40:757-761. [PMID: 38282882 PMCID: PMC10809828 DOI: 10.5114/ada.2023.132262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 08/08/2023] [Indexed: 01/30/2024] Open
Abstract
Introduction Concerns are growing in the aviation industry about occupational skin diseases like malignant melanoma (MM) among airline pilots (APs), due to the unique working environment that exposes them to various skin stressors. Aim To compare five skin biophysical parameters in a group of 40 male APs, each matched in terms of age and service tenure (minimum of 5 years) with a control group of 40 male office workers (OWs). Considering the potential role of dermokine (DMKN) in skin barrier dysfunction and the pathogenesis of MM, we further analyzed the serum levels of this molecule and correlated them with the measured skin parameters. Material and methods Stratum corneum skin hydration, transepidermal water loss (TEWL), sebum content, erythema index (EI), and melanin index (MI) were quantified by non-invasive instruments in the cheek region. Serum DMKN levels were measured using a commercially available enzyme-linked immunosorbent assay kit. Results Compared with OWs, the skin of APs exhibited a decrease in hydration levels in the stratum corneum, coinciding with a higher TEWL. However, there was no significant variance in sebum content between the groups. MI was notably higher in APs than in OWs, as was EI. In APs, serum DMKN levels were independently associated with MI (β = 0.56, p < 0.05). Conclusions We found a significant link between the profession of an airline pilot and changes in skin biophysical parameters. Further research into the interplay between serum DMKN levels and the risk of MM in APs is warranted.
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Affiliation(s)
- Piercarlo Minoretti
- Studio Minoretti, Oggiono, Italy
- Department of Legal Medicine, Psychiatry and Pathology, School of Medicine, Complutense University of Madrid, Madrid, Spain
| | - Andrés S. Santiago Sáez
- Department of Legal Medicine, Psychiatry and Pathology, School of Medicine, Complutense University of Madrid, Madrid, Spain
| | - Ángel F. García Martín
- Department of Legal Medicine, Psychiatry and Pathology, School of Medicine, Complutense University of Madrid, Madrid, Spain
| | - Miryam Liańo Riera
- Department of Legal Medicine, Psychiatry and Pathology, School of Medicine, Complutense University of Madrid, Madrid, Spain
| | - Manuel Gómez Serrano
- Department of Legal Medicine, Psychiatry and Pathology, School of Medicine, Complutense University of Madrid, Madrid, Spain
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Oh JH, Karadeniz F, Seo Y, Kong CS. Dietary flavonoid myricetin 3- O-galactoside suppresses α-melanocyte stimulating hormone-induced melanogenesis in B16F10 melanoma cells by regulating PKA and ERK1/2 activation. Z NATURFORSCH C 2023; 78:399-407. [PMID: 37703186 DOI: 10.1515/znc-2023-0039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 08/26/2023] [Indexed: 09/15/2023]
Abstract
Melanogenesis is the process where skin pigment melanin is produced through tyrosinase activity. Overproduction of melanin causes skin disorders such as freckles, spots, and hyperpigmentation. Myricetin 3-O-galactoside (M3G) is a dietary flavonoid with reported bioactivities. M3G was isolated from Limonium tetragonum and its anti-melanogenic properties were investigated in α-melanocyte stimulating hormone-stimulated B16F10 melanoma cells. The in vitro anti-melanogenic capacity of M3G was confirmed by inhibited tyrosinase and melanin production. M3G-mediated suppression of melanogenic proteins, tyrosinase, microphthalmia-associated transcription factor (MITF), and tyrosinase-related proteins (TRP)-1 and TRP-2, were confirmed by mRNA and protein levels, analyzed by RT-qPCR and Western blot, respectively. Furthermore, M3G suppressed Wnt signaling through the inhibition of PKA phosphorylation. M3G also suppressed the consequent phosphorylation of CREB and nuclear levels of MITF. Analysis of MAPK activation further revealed that M3G increased the activation of ERK1/2 while p38 and JNK activation remained unaffected. Results showed that M3G suppressed melanogenesis in B16F10 cells by decreasing tyrosinase production and therefore inhibiting melanin formation. A possible action mechanism was the suppression of CREB activation and upregulation of ERK phosphorylation which might cause the decreased nuclear levels of MITF. In conclusion, M3G was suggested to be a potential nutraceutical with anti-melanogenic properties.
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Affiliation(s)
- Jung Hwan Oh
- Marine Biotechnology Center for Pharmaceuticals and Foods, College of Medical and Life Sciences, Silla University, Busan 46958, Republic of Korea
- Nutritional Education, Graduate School of Education, Silla University, Busan 46958, Korea
| | - Fatih Karadeniz
- Marine Biotechnology Center for Pharmaceuticals and Foods, College of Medical and Life Sciences, Silla University, Busan 46958, Republic of Korea
| | - Youngwan Seo
- Division of Convergence on Marine Science, College of Ocean Science and Technology, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
| | - Chang-Suk Kong
- Marine Biotechnology Center for Pharmaceuticals and Foods, College of Medical and Life Sciences, Silla University, Busan 46958, Republic of Korea
- Department of Food and Nutrition, College of Medical and Life Sciences, Silla University, Busan 46958, Republic of Korea
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78
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Collier V, Patel J, Chiu CY, Fowke JH, Patel TS, Liu-Smith F. Distinctive lower incidence rates of cutaneous melanoma on the hips and lower extremities of men. Clin Exp Dermatol 2023; 48:1333-1340. [PMID: 37467730 DOI: 10.1093/ced/llad236] [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: 11/17/2022] [Revised: 06/14/2023] [Accepted: 07/05/2023] [Indexed: 07/21/2023]
Abstract
BACKGROUND Cutaneous melanomas (CMs) are more frequently found on the trunk in men, and on the hip and lower extremities (legs) in women. This discrepancy has been attributed to greater exposure to ultraviolet (UV) radiation of women's legs due to their dressing habits. OBJECTIVES To understand the sex difference in the bodily distribution of CMs, especially those on the legs. METHODS This was a cancer registry-based cohort study. CM incidences, relative tumour density and tumour mutational burdens (TMBs) were compared among different body sites in different sex and racial groups using the SEER (Surveillance, Epidemiology, and End Results) and TCGA SKCM (The Cancer Genome Atlas skin cutaneous melanoma) databases. RESULTS White men had lower rates and lower relative tumour density (RTD) of CMs on their legs compared with the rest of their body sites, or compared with White women. Men classified by SEER into racial groups other than White did not show such a trend. White women had comparable RTDs among different body sites. The ratios between the 'White' and the 'other' groups were used to evaluate the approximate effect of sun exposure at different body sites, which further validated a distinct protective effect of men's legs in melanoma. TMB on leg melanomas was lower than on other sites in both sexes. CONCLUSIONS The legs of both sexes in White patients show lower RTDs and lower levels of TMB, suggesting a weaker association with UV exposure. Furthermore, White men are especially protected against CM on their legs, suggesting an unknown intrinsic protective factor as compared with women.
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Affiliation(s)
| | | | - Chi-Yang Chiu
- Department of Preventative Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Jay H Fowke
- Department of Preventative Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | | | - Feng Liu-Smith
- Department of Dermatology
- Department of Preventative Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
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79
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Roider E, Lakatos AIT, McConnell AM, Wang P, Mueller A, Kawakami A, Tsoi J, Szabolcs BL, Ascsillán AA, Suita Y, Igras V, Lo JA, Hsiao JJ, Lapides R, Pál DMP, Lengyel AS, Navarini A, Okazaki A, Iliopoulos O, Németh I, Graeber TG, Zon L, Giese RW, Kemeny LV, Fisher DE. MITF regulates IDH1 and NNT and drives a transcriptional program protecting cutaneous melanoma from reactive oxygen species. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.10.564582. [PMID: 38014031 PMCID: PMC10680652 DOI: 10.1101/2023.11.10.564582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Microphthalmia-associated transcription factor (MITF) plays pivotal roles in melanocyte development, function, and melanoma pathogenesis. MITF amplification occurs in melanoma and has been associated with resistance to targeted therapies. Here, we show that MITF regulates a global antioxidant program that increases survival of melanoma cell lines by protecting the cells from reactive oxygen species (ROS)-induced damage. In addition, this redox program is correlated with MITF expression in human melanoma cell lines and patient-derived melanoma samples. Using a zebrafish melanoma model, we show that MITF decreases ROS-mediated DNA damage in vivo . Some of the MITF target genes involved, such as IDH1 and NNT , are regulated through direct MITF binding to canonical enhancer box (E-BOX) sequences proximal to their promoters. Utilizing functional experiments, we demonstrate the role of MITF and its target genes in reducing cytosolic and mitochondrial ROS. Collectively, our data identify MITF as a significant driver of the cellular antioxidant state. One Sentence Summary MITF promote melanoma survival via increasing ROS tolerance.
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80
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Footner E, Firipis K, Liu E, Baker C, Foley P, Kapsa RMI, Pirogova E, O'Connell C, Quigley A. Layer-by-Layer Analysis of In Vitro Skin Models. ACS Biomater Sci Eng 2023; 9:5933-5952. [PMID: 37791888 DOI: 10.1021/acsbiomaterials.3c00283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
In vitro human skin models are evolving into versatile platforms for the study of skin biology and disorders. These models have many potential applications in the fields of drug testing and safety assessment, as well as cosmetic and new treatment development. The development of in vitro skin models that accurately mimic native human skin can reduce reliance on animal models and also allow for more precise, clinically relevant testing. Recent advances in biofabrication techniques and biomaterials have led to the creation of increasingly complex, multilayered skin models that incorporate important functional components of skin, such as the skin barrier, mechanical properties, pigmentation, vasculature, hair follicles, glands, and subcutaneous layer. This improved ability to recapitulate the functional aspects of native skin enhances the ability to model the behavior and response of native human skin, as the complex interplay of cell-to-cell and cell-to-material interactions are incorporated. In this review, we summarize the recent developments in in vitro skin models, with a focus on their applications, limitations, and future directions.
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Affiliation(s)
- Elizabeth Footner
- Electrical and Biomedical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
- Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
| | - Kate Firipis
- Electrical and Biomedical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
- Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
| | - Emily Liu
- Electrical and Biomedical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
- Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
| | - Chris Baker
- Department of Dermatology, St Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
- Skin Health Institute, Carlton, VIC 3053, Australia
- Department of Medicine, University of Melbourne, St Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
| | - Peter Foley
- Department of Dermatology, St Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
- Skin Health Institute, Carlton, VIC 3053, Australia
- Department of Medicine, University of Melbourne, St Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
| | - Robert M I Kapsa
- Electrical and Biomedical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
- Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
- Department of Medicine, University of Melbourne, St Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
- Centre for Clinical Neurosciences and Neurological Research, St. Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
| | - Elena Pirogova
- Electrical and Biomedical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
- Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
| | - Cathal O'Connell
- Electrical and Biomedical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
- Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
| | - Anita Quigley
- Electrical and Biomedical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
- Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
- Department of Medicine, University of Melbourne, St Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
- Centre for Clinical Neurosciences and Neurological Research, St. Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia
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Biyashev D, Siwicka ZE, Onay UV, Demczuk M, Xu D, Ernst MK, Evans ST, Nguyen CV, Son FA, Paul NK, McCallum NC, Farha OK, Miller SD, Gianneschi NC, Lu KQ. Topical application of synthetic melanin promotes tissue repair. NPJ Regen Med 2023; 8:61. [PMID: 37919305 PMCID: PMC10622536 DOI: 10.1038/s41536-023-00331-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 09/22/2023] [Indexed: 11/04/2023] Open
Abstract
In acute skin injury, healing is impaired by the excessive release of reactive oxygen species (ROS). Melanin, an efficient scavenger of radical species in the skin, performs a key role in ROS scavenging in response to UV radiation and is upregulated in response to toxic insult. In a chemical injury model in mice, we demonstrate that the topical application of synthetic melanin particles (SMPs) significantly decreases edema, reduces eschar detachment time, and increases the rate of wound area reduction compared to vehicle controls. Furthermore, these results were replicated in a UV-injury model. Immune array analysis shows downregulated gene expression in apoptotic and inflammatory signaling pathways consistent with histological reduction in apoptosis. Mechanistically, synthetic melanin intervention increases superoxide dismutase (SOD) activity, decreases Mmp9 expression, and suppresses ERK1/2 phosphorylation. Furthermore, we observed that the application of SMPs caused increased populations of anti-inflammatory immune cells to accumulate in the skin, mirroring their decrease from splenic populations. To enhance antioxidant capacity, an engineered biomimetic High Surface Area SMP was deployed, exhibiting increased wound healing efficiency. Finally, in human skin explants, SMP intervention significantly decreased the damage caused by chemical injury. Therefore, SMPs are promising and effective candidates as topical therapies for accelerated wound healing, including via pathways validated in human skin.
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Affiliation(s)
- Dauren Biyashev
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Zofia E Siwicka
- Department of Chemistry, Northwestern University, Evanston, IL, USA
- International Institute of Nanotechnology, Simpson-Querrey Institute, Chemistry of Life Processes Institute, Lurie Cancer Center. Northwestern University, Evanston, IL, USA
| | - Ummiye V Onay
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Michael Demczuk
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Dan Xu
- Department of Microbiology-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Madison K Ernst
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Spencer T Evans
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Cuong V Nguyen
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Florencia A Son
- Department of Chemistry, Northwestern University, Evanston, IL, USA
- International Institute of Nanotechnology, Simpson-Querrey Institute, Chemistry of Life Processes Institute, Lurie Cancer Center. Northwestern University, Evanston, IL, USA
| | - Navjit K Paul
- Department of Chemistry, Northwestern University, Evanston, IL, USA
- International Institute of Nanotechnology, Simpson-Querrey Institute, Chemistry of Life Processes Institute, Lurie Cancer Center. Northwestern University, Evanston, IL, USA
| | - Naneki C McCallum
- Department of Chemistry, Northwestern University, Evanston, IL, USA
- International Institute of Nanotechnology, Simpson-Querrey Institute, Chemistry of Life Processes Institute, Lurie Cancer Center. Northwestern University, Evanston, IL, USA
| | - Omar K Farha
- Department of Chemistry, Northwestern University, Evanston, IL, USA
- International Institute of Nanotechnology, Simpson-Querrey Institute, Chemistry of Life Processes Institute, Lurie Cancer Center. Northwestern University, Evanston, IL, USA
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL, USA
| | - Stephen D Miller
- Department of Microbiology-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Nathan C Gianneschi
- Department of Chemistry, Northwestern University, Evanston, IL, USA.
- International Institute of Nanotechnology, Simpson-Querrey Institute, Chemistry of Life Processes Institute, Lurie Cancer Center. Northwestern University, Evanston, IL, USA.
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA.
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA.
- Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
- Department of Chemistry, University of California San Diego, San Diego, Ca, USA.
| | - Kurt Q Lu
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
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82
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Logesh R, Prasad SR, Chipurupalli S, Robinson N, Mohankumar SK. Natural tyrosinase enzyme inhibitors: A path from melanin to melanoma and its reported pharmacological activities. Biochim Biophys Acta Rev Cancer 2023; 1878:188968. [PMID: 37657683 DOI: 10.1016/j.bbcan.2023.188968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 08/15/2023] [Accepted: 08/15/2023] [Indexed: 09/03/2023]
Abstract
The skin containing melanin pigment acts as a protective barrier and counteracts the UVR and other environmental stressors to maintain or restore disrupted cutaneous homeostasis. The production of melanin pigment is dependent on tyrosine levels. L-tyrosine and L-dihydroxyphenylalanine (L-DOPA) can serve both as a substrates and intermediates of melanin synthetic pathway and as inducers and positive regulators of melanogenesis. The biosynthesis of melanin is stimulated upon exposure to UVR, which can also stimulate local production of hormonal factors, which can stimulate melanoma development by altering the chemical properties of eu- and pheomelanin. The process of melanogenesis can be altered by several pathways. One involves activation of POMC, with the production of POMC peptides including MSH and ACTH, which increase intracellular cAMP levels, which activates the MITF, and helps to stimulate tyrosinase (TYR) expression and activity. Defects in OCA1 to 4 affects melanogenic activity via posttranslational modifications resulting in proteasomal degradation and reducing pigmentation. Further, altering, the MITF factor, helps to regulate the expression of MRGE in melanoma, and helps to increase the TYR glycosylation in ER. CRH stimulates POMC peptides that regulate melanogenesis and also by itself can stimulate melanogenesis. The POMC, P53, ACTH, MSH, MC1R, MITF, and 6-BH4 are found to be important regulators for pigmentation. Melanogenesis can affect melanoma behaviour and inhibit immune responses. Therefore, we reviewed natural products that would alter melanin production. Our special focus was on targeting melanin synthesis and TYR enzyme activity to inhibit melanogenesis as an adjuvant therapy of melanotic melanoma. Furthermore, this review also outlines the current updated pharmacological studies targeting the TYR enzyme from natural sources and its consequential effects on melanin production.
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Affiliation(s)
- Rajan Logesh
- Department of Pharmacognosy, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru 570015, Karnataka, India.
| | - Sagar Rajendra Prasad
- Department of Pharmacognosy, Varadaraja Institute of Pharmaceutical Education and Research, Tumkur 572102, Karnataka, India
| | - Sandhya Chipurupalli
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Ooty, India
| | - Nirmal Robinson
- Cellular Stress and Immune Response Laboratory, Centre for Cancer Biology, University of South Australia, Adelaide, Australia
| | - Suresh Kumar Mohankumar
- Pharmacy, Swansea University Medical School, Singleton Park, Swansea University, Wales SA2 8PP, United Kingdom
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83
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Harel N, Ogen-Shtern N, Reshef L, Biran D, Ron EZ, Gophna U. Skin microbiome bacteria enriched following long sun exposure can reduce oxidative damage. Res Microbiol 2023; 174:104138. [PMID: 37722498 DOI: 10.1016/j.resmic.2023.104138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/07/2023] [Accepted: 09/13/2023] [Indexed: 09/20/2023]
Abstract
Sun exposure is harmful to the skin and increases the risk of skin aging and skin cancer. Here we examined the effects of daily exposure to sun radiation on the skin microbiome in order to determine whether skim microbiome bacteria can contribute to protection from solar damage. Skin swabs were collected from ten lifeguards before and after the summer to analyse the skin microbiome. The results indicate that specific skin microbiome bacteria were enriched following the seasonal sun exposure. Especially interesting were two bacterial families - Sphingomonas and Erythrobacteraceae - which may have the ability to protect against UV radiation as they produce potentially protective compounds. We concentrated on a Sphingomonas strain and could show that it was highly resistant to UV irradiation and was able to reduce reactive oxygen species levels in human keratinocytes. These results provide a proof-of-concept for the role of the skin microbiome in protection from solar radiation.
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Affiliation(s)
- Nurit Harel
- The Shmunis School of Biomedicine and Cancer Research, Tel Aviv University, Tel Aviv, 69978, Israel; Porter School of the Environment and Earth Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Navit Ogen-Shtern
- The Skin Research Institute, Dead Sea and Arava Science Center and Eilat Campus, Ben Gurion University of the Negev, Israel
| | - Leah Reshef
- The Shmunis School of Biomedicine and Cancer Research, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Dvora Biran
- The Shmunis School of Biomedicine and Cancer Research, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Eliora Z Ron
- The Shmunis School of Biomedicine and Cancer Research, Tel Aviv University, Tel Aviv, 69978, Israel.
| | - Uri Gophna
- The Shmunis School of Biomedicine and Cancer Research, Tel Aviv University, Tel Aviv, 69978, Israel
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84
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Menichetti A, Mavridi-Printezi A, Mordini D, Montalti M. Polydopamine-Based Nanoprobes Application in Optical Biosensing. BIOSENSORS 2023; 13:956. [PMID: 37998131 PMCID: PMC10669744 DOI: 10.3390/bios13110956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/13/2023] [Accepted: 10/24/2023] [Indexed: 11/25/2023]
Abstract
Polydopamine (PDA), the synthetic counterpart of melanin, is a widely investigated bio-inspired material for its chemical and photophysical properties, and in the last few years, bio-application of PDA and PDA-based materials have had a dramatic increase. In this review, we described PDA application in optical biosensing, exploring its multiple roles as a nanomaterial. In optical sensing, PDA can not only be used for its intrinsic fluorescent and photoacoustic properties as a probe: in some cases, a sample optical signal can be derived by melanin generation in situ or it can be enhanced in another material thanks to PDA modification. The various possibilities of PDA use coupled with its biocompatibility will indeed widen even more its application in optical bioimaging.
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Affiliation(s)
| | | | | | - Marco Montalti
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy; (A.M.); (A.M.-P.); (D.M.)
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85
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Ghazi M, Khanna S, Subramaniam Y, Rengaraju J, Sultan F, Gupta I, Sharma K, Chandna S, Gokhale RS, Natarajan V. Sustained pigmentation causes DNA damage and invokes translesion polymerase Polκ for repair in melanocytes. Nucleic Acids Res 2023; 51:10451-10466. [PMID: 37697436 PMCID: PMC10602914 DOI: 10.1093/nar/gkad704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 08/02/2023] [Accepted: 08/14/2023] [Indexed: 09/13/2023] Open
Abstract
Melanin protects skin cells from ultraviolet radiation-induced DNA damage. However, intermediates of eumelanin are highly reactive quinones that are potentially genotoxic. In this study, we systematically investigate the effect of sustained elevation of melanogenesis and map the consequent cellular repair response of melanocytes. Pigmentation increases γH2AX foci, DNA abasic sites, causes replication stress and invokes translesion polymerase Polκ in primary human melanocytes, as well as mouse melanoma cells. Confirming the causal link, CRISPR-based genetic ablation of tyrosinase results in depigmented cells with low Polκ levels. During pigmentation, Polκ activates replication stress response and keeps a check on uncontrolled proliferation of cells harboring melanin-damaged DNA. The mutational landscape observed in human melanoma could in part explain the error-prone bypass of DNA lesions by Polκ, whose absence would lead to genome instability. Thereby, translesion polymerase Polκ is a critical response of pigmenting melanocytes to combat melanin-induced DNA alterations. Our study illuminates the dark side of melanin and identifies (eu)melanogenesis as a key missing link between tanning response and mutagenesis, mediated via the necessary evil translesion polymerase, Polκ.
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Affiliation(s)
- Madeeha Ghazi
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Shivangi Khanna
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Yogaspoorthi Subramaniam
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Jeyashri Rengaraju
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Farina Sultan
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Iti Gupta
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Kanupriya Sharma
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Delhi 110054, India
| | - Sudhir Chandna
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Delhi 110054, India
| | - Rajesh S Gokhale
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Vivek T Natarajan
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
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86
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Karimi N. Approaches in line with human physiology to prevent skin aging. Front Physiol 2023; 14:1279371. [PMID: 37954446 PMCID: PMC10634238 DOI: 10.3389/fphys.2023.1279371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 10/16/2023] [Indexed: 11/14/2023] Open
Abstract
Skin aging is a complex process that is influenced by intrinsic and extrinsic factors that impact the skin's protective functions and overall health. As the body's outermost layer, the skin plays a critical role in defending it against external threats, regulating body temperature, providing tactile sensation, and synthesizing vitamin D for bone health, immune function, and body homeostasis. However, as individuals age, the skin undergoes structural and functional changes, leading to impairments in these essential functions. In contemporary society, there is an increasing recognition of skin health as a significant indicator of overall wellbeing, resulting in a growing demand for anti-aging products and treatments. However, these products often have limitations in terms of safety, effective skin penetration, and potential systemic complications. To address these concerns, researchers are now focusing on approaches that are safer and better aligned with physiology of the skin. These approaches include adopting a proper diet and maintaining healthy lifestyle habits, the development of topical treatments that synchronize with the skin's circadian rhythm, utilizing endogenous antioxidant molecules, such as melatonin and natural products like polyphenols. Moreover, exploring alternative compounds for sun protection, such as natural ultraviolet (UV)-absorbing compounds, can offer safer options for shielding the skin from harmful radiation. Researchers are currently exploring the potential of adipose-derived stem cells, cell-free blood cell secretome (BCS) and other endogenous compounds for maintaining skin health. These approaches are more secure and more effective alternatives which are in line with human physiology to tackle skin aging. By emphasizing these innovative strategies, it is possible to develop effective treatments that not only slow down the skin aging process but also align better with the natural physiology of the skin. This review will focus on recent research in this field, highlighting the potential of these treatments as being safer and more in line with the skin's physiology in order to combat the signs of aging.
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Affiliation(s)
- Nazli Karimi
- Department of Physiology, Faculty of Medicine, Hacettepe University, Ankara, Türkiye
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Park S, Han N, Lee J, Lee JN, An S, Bae S. Anti-Melanogenic Effects of Lilium lancifolium Root Extract via Downregulation of PKA/CREB and MAPK/CREB Signaling Pathways in B16F10 Cells. PLANTS (BASEL, SWITZERLAND) 2023; 12:3666. [PMID: 37960022 PMCID: PMC10648933 DOI: 10.3390/plants12213666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/18/2023] [Accepted: 10/22/2023] [Indexed: 11/15/2023]
Abstract
Hyperpigmentation disorders causing emotional distress require the topical use of depigmenting agents of natural origin. In this study, the anti-melanogenic effects of the Lilium lancifolium root extract (LRE) were investigated in B16F10 cells. Consequently, a non-cytotoxic concentration of the extract reduced intracellular melanin content and tyrosinase activity in a dose-dependent manner, correlating with the diminished expression of core melanogenic enzymes within cells. LRE treatment also inhibited cyclic adenosine monophosphate (cAMP) response element-binding protein (CREB)/microphthalmia-associated transcription factor signaling, which regulates the expression of tyrosinase-related genes. Upon examining these findings from a molecular mechanism perspective, LRE treatment suppressed the phosphorylation of protein kinase A (PKA), p38, and extracellular signal-related kinase (ERK), which are upstream regulators of CREB. In addition, L-phenylalanine and regaloside A, specifically identified within the LRE using liquid chromatography-mass spectrometry, exhibited inhibitory effects on melanin production. Collectively, these results imply that LRE potentially suppresses cAMP-mediated melanogenesis by downregulating PKA/CREB and mitogen-activated protein kinase (MAPK)/CREB signaling pathways. Therefore, it can be employed as a novel therapeutic ingredient of natural origin to ameliorate hyperpigmentation disorders.
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Affiliation(s)
- Seokmuk Park
- Department of Cosmetics Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea; (S.P.); (N.H.)
| | - Nayeon Han
- Department of Cosmetics Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea; (S.P.); (N.H.)
- Dermato Bio, Inc., #505, Techno Cube, 13-18 Songdogwahak-ro 16beon-gil, Yeongsu-gu, Incheon 21984, Republic of Korea;
| | - Jungmin Lee
- Dermato Bio, Inc., #505, Techno Cube, 13-18 Songdogwahak-ro 16beon-gil, Yeongsu-gu, Incheon 21984, Republic of Korea;
| | - Jae-Nam Lee
- Department of Cosmetology, Graduate School of Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea;
| | - Sungkwan An
- Eco Up Bio, Inc., 373 Chang-ui-ri, Seorak-myeon, Gapyeong-gun 477852, Republic of Korea;
| | - Seunghee Bae
- Department of Cosmetics Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea; (S.P.); (N.H.)
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88
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Ko J, Lee MJ, Jeong W, Choi S, Shin E, An YH, Kim HJ, Lee UJ, Kim BG, Kwak SY, Hwang NS. Single-Walled Carbon Nanotube-Guided Topical Skin Delivery of Tyrosinase to Prevent Photoinduced Damage. ACS NANO 2023; 17:20473-20491. [PMID: 37793020 DOI: 10.1021/acsnano.3c06846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
When the skin is exposed to ultraviolet radiation (UV), it leads to the degradation of the extracellular matrix (ECM) and results in inflammation. Subsequently, melanocytes are triggered to induce tyrosinase-mediated melanin synthesis, protecting the skin. Here, we introduce a proactive approach to protect the skin from photodamage via the topical delivery of Streptomyces avermitilis-derived tyrosinase (SaTy) using single-walled carbon nanotube (SWNT). Utilizing a reverse electrodialysis (RED) battery, we facilitated the delivery of SaTy-SWNT complexes up to depths of approximately 300 μm, as analyzed by using confocal Raman microscopy. When applied to ex vivo porcine skin and in vivo albino mouse skin, SaTy-SWNT synthesized melanin, resulting in 4-fold greater UV/vis absorption at 475 nm than in mice without SaTy-SWNT. The synthesized melanin efficiently absorbed UV light and alleviated skin inflammation. In addition, the densification of dermal collagen, achieved through SaTy-mediated cross-linking, reduced photoinduced wrinkles by 66.3% in the affected area. Our findings suggest that SWNT-mediated topical protein delivery holds promise in tissue engineering applications.
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Affiliation(s)
- Junghyeon Ko
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Min Jeong Lee
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Woojin Jeong
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Subin Choi
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Eunhye Shin
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Young-Hyeon An
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Republic of Korea
- BioMax/N-Bio Institute, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyeon-Jin Kim
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Uk-Jae Lee
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
- BioMax/N-Bio Institute, Seoul National University, Seoul 08826, Republic of Korea
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
- BioMax/N-Bio Institute, Seoul National University, Seoul 08826, Republic of Korea
| | - Seon-Yeong Kwak
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
- BioMax/N-Bio Institute, Seoul National University, Seoul 08826, Republic of Korea
| | - Nathaniel S Hwang
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Republic of Korea
- BioMax/N-Bio Institute, Seoul National University, Seoul 08826, Republic of Korea
- Institute of Engineering Research, Seoul National University, Seoul 08826, Republic of Korea
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89
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Wu X, Wei F, Ding F, Yang N, Niu J, Ran Y, Tian M. Phytochemical analysis, antioxidant, antimicrobial, and anti-enzymatic properties of Alpinia coriandriodora (sweet ginger) rhizome. FRONTIERS IN PLANT SCIENCE 2023; 14:1284931. [PMID: 37936928 PMCID: PMC10626549 DOI: 10.3389/fpls.2023.1284931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/09/2023] [Indexed: 11/09/2023]
Abstract
Alpinia coriandriodora, also known as sweet ginger, is a medicinal and edible plant. A. coriandriodora rhizome is popularly utilized in traditional Chinese medicine and as flavouring spices, but there are few reports on its constituents and bioactivities. This study analyzed the phytochemical components of A. coriandriodora rhizome by GC-MS and UHPLC-Q-Orbitrap-MS and evaluated its antioxidant, antimicrobial, and anti-enzymatic properties. According to the GC-FID/MS data, its rhizome essential oil (EO) consisted mainly of (E)-2-decenal (53.8%), (E)-2-decenyl acetate (24.4%), (Z)-3-dodecenyl acetate (3.5%), and (E)-2-octenal (3.5%). Its water extract (WE) and 70% ethanol extract (EE) showed high total phenolic content (TPC, 52.99-60.49 mg GAEs/g extract) and total flavonoid content (TFC, 260.69-286.42 mg REs/g extract). In addition, the phytochemicals of WE and EE were further characterized using UHPLC-Q-Orbitrap-MS, and a total of sixty-three compounds were identified, including fourteen phenolic components and twenty-three flavonoid compounds. In the antioxidant assay, WE and EE revealed a potent scavenging effect on DPPH (IC50: 6.59 ± 0.88 mg/mL and 17.70 ± 1.15 mg/mL, respectively), surpassing the BHT (IC50: 21.83 ± 0.89 mg/mL). For the antimicrobial activities, EO displayed excellent antibacterial capabilities against Proteus vulgaris, Enterococcus faecalis, Bacillus subtilis, Escherichia coli, and Staphylococcus aureus with DIZ (12.60-22.17 mm), MIC (0.78-1.56 mg/mL), and MBC (3.13 mg/mL) and significantly inhibited Aspergillus flavus growth (MIC = 0.313 mg/mL, MFC = 0.625 mg/mL, respectively). In addition to weak tyrosinase and cholinesterase inhibition, EE and WE had a prominent inhibitory effect against α-glucosidase (IC50: 0.013 ± 0.001 mg/mL and 0.017 ± 0.002 mg/mL), which was significantly higher than acarbose (IC50: 0.22 ± 0.01 mg/mL). Hence, the rhizome of A. coriandriodora has excellent potential for utilization in the pharmaceutical and food fields as a source of bioactive substances.
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Affiliation(s)
- Xia Wu
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), School of Liquor and Food Engineering, Guizhou University, Guiyang, China
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food, Guizhou University, Guiyang, China
| | - Feng Wei
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), School of Liquor and Food Engineering, Guizhou University, Guiyang, China
| | - Furong Ding
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food, Guizhou University, Guiyang, China
| | - Nian Yang
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), School of Liquor and Food Engineering, Guizhou University, Guiyang, China
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food, Guizhou University, Guiyang, China
| | - Jingming Niu
- First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Yuanquan Ran
- First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Minyi Tian
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), School of Liquor and Food Engineering, Guizhou University, Guiyang, China
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food, Guizhou University, Guiyang, China
- First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
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90
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Borad A, Deianni E, Peña K, Burjonrappa S. Pediatric Melanoma: Geographic Trends in Incidence, Stage, and Mortality in the United States. J Surg Res 2023; 290:215-220. [PMID: 37285703 DOI: 10.1016/j.jss.2023.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/22/2023] [Accepted: 04/15/2023] [Indexed: 06/09/2023]
Abstract
INTRODUCTION Pediatric melanoma is the most commonly diagnosed skin cancer in children, with the annual incidence recently increasing by an average of 2% each year. Ultraviolet (UV) radiation from excessive sun exposure is an important carcinogenic risk factor, with penetration varying greatly throughout the country. Consequently, an individual's geographic location may play a role in how much exposure to high UV index rays they receive throughout their lifetime. The objective of this study was to use the surveillance, epidemiology, and end results SEER database to study geographic trends in incidence, staging, and mortality of pediatric melanoma between 2009 and 2019 and determine their relation to UV index in the United States. MATERIALS AND METHODS A retrospective analysis of pediatric patients from 0 to 19 years in the surveillance, epidemiology, and end results 22 registries incidence database (17 states) and 17 registries incidence-based mortality database (12 states) was conducted from 2009 to 2019 based on a diagnosis of melanoma of the skin using the International Classification of Childhood Cancer codes for malignant melanoma. Data regarding patient demographics and incidence, staging, and mortality per state were extracted. Incidence data were geographically mapped and mean UV index distribution from www.epa.gov was superimposed. RESULTS Incidence of pediatric melanoma was stratified regionally, with a total of 1665 new cases from 2009 to 2019. The Northeast had 393 new cases, with 244 (62.1%) localized cases, 55 (14.0%) lymph node-invasive and metastatic (advanced) cases, and 6/146 (4.1%) cases of mortality. The Midwest had 209 new cases, with 123 (58.9%) localized cases, 29 (13.9%) advanced cases, and 1/57 (1.8%) case of mortality. The South had 487 new cases, with 224 (46.0%) localized cases, 104 (21.4%) advanced cases, and 8/232 (3.4%) cases of mortality. The West had 576 new cases, with 364 (63.2%) localized cases, 82 (14.2%) advanced cases, and 23/551 (4.2%) cases of mortality. Mean UV index was 4.4 in the Northeast, 4.8 in the Midwest, 7.3 in the South, and 5.5 in the West from 2006 to 2020. The regional difference in incidence was not statistically significant. There was a statistically significant increased number of advanced cases in the South as compared to the Northeast (P = 0.005), West (P = 0.002), and Midwest (P = 0.02), with a significant correlation coefficient of 0.7204 between advanced cases and mean UV index in the South. CONCLUSIONS There is a statistically significant increased incidence of lymph node-invasive and metastatic pediatric melanoma cases in the South as compared to the West, Northeast, and Midwest regions of the United States. There is also a significant correlation between the incidence of lymph node-invasive and metastatic pediatric melanoma cases and UV index. In the pediatric population, there is no statistically significant association between total incidence and mortality of melanoma and geographic region. There is an increased prevalence of pediatric melanoma seen in White and female patients. This suggests that an individual's geographic location in the United States during childhood may play a role in their likelihood of malignant melanoma development, advanced-stage melanoma development, and mortality.
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Affiliation(s)
| | - Ellie Deianni
- Medical Students, Rutgers RWJMS, New Brunswick, New Jersey
| | - Kayla Peña
- Medical Students, Rutgers RWJMS, New Brunswick, New Jersey
| | - Sathyaprasad Burjonrappa
- Professor of Surgery & Division Chief of Adolescent Obesity Program, Department of Pediatric Surgery, Rutgers, RWJMS, New Brunswick, New Jersey.
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91
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Yusupova M, Zhou D, You J, Gonzalez-Guzman J, Ghanta MB, Pu H, Abdel-Malek Z, Chen Q, Gross SS, D'Orazio J, Ito S, Wakamatsu K, Harris ML, Zippin JH. Distinct cAMP Signaling Microdomains Differentially Regulate Melanosomal pH and Pigmentation. J Invest Dermatol 2023; 143:2019-2029.e3. [PMID: 37142186 PMCID: PMC10524761 DOI: 10.1016/j.jid.2023.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/24/2023] [Accepted: 04/12/2023] [Indexed: 05/06/2023]
Abstract
cAMP signaling is a well-established regulator of melanin synthesis. Two distinct cAMP signaling pathways-the transmembrane adenylyl cyclase pathway, activated primarily by the MC1R, and the soluble adenylyl cyclase (sAC) pathway-affect melanin synthesis. The sAC pathway affects melanin synthesis by regulating melanosomal pH, and the MC1R pathway affects melanin synthesis by regulating gene expression and post-translational modifications. However, whether MC1R genotype affects melanosomal pH is poorly understood. We now report that loss of function MC1R does not affect melanosomal pH. Thus, sAC signaling appears to be the only cAMP signaling pathway that regulates melanosomal pH. We also addressed whether MC1R genotype affects sAC-dependent regulation of melanin synthesis. Although sAC loss of function in wild-type human melanocytes stimulates melanin synthesis, sAC loss of function has no effect on melanin synthesis in MC1R nonfunctional human and mouse melanocytes or skin and hair melanin in e/e mice. Interestingly, activation of transmembrane adenylyl cyclases, which increases epidermal eumelanin synthesis in e/e mice, leads to enhanced production of eumelanin in sAC-knockout mice relative to that in sAC wild-type mice. Thus, MC1R- and sAC-dependent cAMP signaling pathways define distinct mechanisms that regulate melanosomal pH and pigmentation.
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Affiliation(s)
- Maftuna Yusupova
- Department of Dermatology, NewYork-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA
| | - Dalee Zhou
- Department of Dermatology, NewYork-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA
| | - Jaewon You
- Department of Dermatology, NewYork-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA
| | - Jeydi Gonzalez-Guzman
- Department of Biology, College of Arts and Sciences, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Megha B Ghanta
- Department of Biology, College of Arts and Sciences, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Hong Pu
- Department of Pediatrics, College of Medicine, University of Kentucky, Lexington, Kentucky, USA
| | - Zalfa Abdel-Malek
- Department of Dermatology, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Qiuying Chen
- Department of Pharmacology, Weill Cornell Medical College, New York, New York, USA
| | - Steven S Gross
- Department of Pharmacology, Weill Cornell Medical College, New York, New York, USA
| | - John D'Orazio
- Department of Pediatrics, College of Medicine, University of Kentucky, Lexington, Kentucky, USA
| | - Shosuke Ito
- Institute for Melanin Chemistry, Fujita Health University, Toyoake, Japan
| | - Kazumasa Wakamatsu
- Institute for Melanin Chemistry, Fujita Health University, Toyoake, Japan
| | - Melissa L Harris
- Department of Biology, College of Arts and Sciences, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jonathan H Zippin
- Department of Dermatology, NewYork-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA; Department of Pharmacology, Weill Cornell Medical College, New York, New York, USA; Englander Institute of Precision Medicine, Weill Cornell Medical College, New York, New York, USA.
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92
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Nagaria TD, Shinde RK, Shukla S, Acharya S, Acharya N, Jogdand SD. The Sunlight-Vitamin D Connection: Implications for Patient Outcomes in the Surgical Intensive Care Unit. Cureus 2023; 15:e46819. [PMID: 37954702 PMCID: PMC10636290 DOI: 10.7759/cureus.46819] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/10/2023] [Indexed: 11/14/2023] Open
Abstract
This review delves into the intricate relationship between Vitamin D and patient outcomes in the Surgical Intensive Care Unit (SICU). Vitamin D, known for its multifaceted roles in immune modulation, inflammation regulation, and maintenance of calcium homeostasis, emerges as a pivotal factor in the care of critically ill patients. Our exploration reveals a high prevalence of Vitamin D deficiency in the SICU, primarily attributable to limited sunlight exposure, comorbidities, and medication use. Importantly, Vitamin D status impacts infection rates, mortality, and length of stay in the SICU, making it a clinically relevant consideration. Mechanistic insights into the immunomodulatory and anti-inflammatory effects of Vitamin D shed light on its potential benefits in critical care. However, challenges, including accurate assessment, individualised supplementation, and ethical considerations regarding sunlight exposure, are evident. The prospect of personalised Vitamin D supplementation strategies offers promise for optimising patient care. In conclusion, the Sunlight-Vitamin D Connection holds significant potential to improve outcomes in the SICU, emphasising the importance of further research and tailored approaches for the well-being of critically ill individuals.
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Affiliation(s)
- Tapesh D Nagaria
- General Surgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Raju K Shinde
- General Surgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Samarth Shukla
- Pathology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Sourya Acharya
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Neema Acharya
- Obstetrics and Gynaecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Sangita D Jogdand
- Pharmacology and Therapeutics, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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93
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Morresi C, Luccarini A, Marcheggiani F, Ferretti G, Damiani E, Bacchetti T. Modulation of paraoxonase-2 in human dermal fibroblasts by UVA-induced oxidative stress: A new potential marker of skin photodamage. Chem Biol Interact 2023; 384:110702. [PMID: 37717644 DOI: 10.1016/j.cbi.2023.110702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/05/2023] [Accepted: 09/08/2023] [Indexed: 09/19/2023]
Abstract
Paraoxonase-2 (PON2) is an intracellular protein, that exerts a protective role against cell oxidative stress and apoptosis. Genetic and environmental factors (i.e. dietary factors, cigarette smoke, drugs) are able to modulate cellular PON2 levels. The effect of ultraviolet A radiation (UVA), the oxidizing component of sunlight, on PON2 in human dermal fibroblasts (HuDe) has not been previously explored. Excessive UVA radiation is known to cause direct and indirect skin damage by influencing intracellular signalling pathways through oxidative stress mediated by reactive oxygen species (ROS) that modulate the expression of downstream genes involved in different processes, e.g. skin photoaging and cancer. The aim of this study was, therefore, to investigate the modulation of PON2 in terms of protein expression and enzyme activity in HuDe exposed to UVA (270 kJ/m2). Our results show that PON2 is up-regulated immediately after UVA exposure and that its levels and activity decrease in the post-exposure phase, in a time-dependent manner (2-24 h). The trend in PON2 levels mirror the time-course study of UVA-induced ROS. To confirm this, experiments were also performed in the presence of a SPF30 sunscreen used as shielding agent to revert modulation of PON2 at 0 and 2 h post-UVA exposure where other markers of photo-oxidative stress were also examined (NF-KB, γH2AX, advanced glycation end products). Overall, our results show that the upregulation of PON2 might be related to the increase in intracellular ROS and may play an important role in mitigation of UVA-mediated damage and in the prevention of the consequences of UV exposure, thus representing a new marker of early-response to UVA-induced damage in skin fibroblasts.
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Affiliation(s)
- Camilla Morresi
- Department of Life and Environmental Sciences, Marche Polytechnic University, Via Brecce Bianche, Ancona 60131, Italy
| | - Alessia Luccarini
- Department of Life and Environmental Sciences, Marche Polytechnic University, Via Brecce Bianche, Ancona 60131, Italy
| | - Fabio Marcheggiani
- Department of Life and Environmental Sciences, Marche Polytechnic University, Via Brecce Bianche, Ancona 60131, Italy
| | - Gianna Ferretti
- Department of Clinical Science and Odontostomatology, Marche Polytechnic University, Via Brecce Bianche, Ancona 60131, Italy
| | - Elisabetta Damiani
- Department of Life and Environmental Sciences, Marche Polytechnic University, Via Brecce Bianche, Ancona 60131, Italy.
| | - Tiziana Bacchetti
- Department of Life and Environmental Sciences, Marche Polytechnic University, Via Brecce Bianche, Ancona 60131, Italy.
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94
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Fakhry H, Ghoniem AA, Al-Otibi FO, Helmy YA, El Hersh MS, Elattar KM, Saber WIA, Elsayed A. A Comparative Study of Cr(VI) Sorption by Aureobasidium pullulans AKW Biomass and Its Extracellular Melanin: Complementary Modeling with Equilibrium Isotherms, Kinetic Studies, and Decision Tree Modeling. Polymers (Basel) 2023; 15:3754. [PMID: 37765609 PMCID: PMC10537747 DOI: 10.3390/polym15183754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 08/27/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
Melanin as a natural polymer is found in all living organisms, and plays an important role in protecting the body from harmful UV rays from the sun. The efficiency of fungal biomass (Aureobasidium pullulans) and its extracellular melanin as Cr(VI) biosorbents was comparatively considered. The efficiency of Cr(VI) biosorption by the two sorbents used was augmented up to 240 min. The maximum sorption capacities were 485.747 (fungus biomass) and 595.974 (melanin) mg/g. The practical data were merely fitted to both Langmuir and Freundlich isotherms. The kinetics of the biosorption process obeyed the pseudo-first-order. Melanin was superior in Cr(VI) sorption than fungal biomass. Furthermore, four independent variables (contact time, initial concentration of Cr(VI), biosorbent dosage, and pH,) were modeled by the two decision trees (DTs). Conversely, to equilibrium isotherms and kinetic studies, DT of fungal biomass had lower errors compared to DT of melanin. Lately, the DTs improved the efficacy of the Cr(VI) removal process, thus introducing complementary and alternative solutions to equilibrium isotherms and kinetic studies. The Cr(VI) biosorption onto the biosorbents was confirmed and elucidated through FTIR, SEM, and EDX investigations. Conclusively, this is the first report study attaining the biosorption of Cr(VI) by biomass of A. pullulans and its extracellular melanin among equilibrium isotherms, kinetic study, and algorithmic decision tree modeling.
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Affiliation(s)
- Hala Fakhry
- National Institute of Oceanography and Fisheries (NIOF), Cairo 11865, Egypt
- Department of Aquatic Environmental Science, Faculty of Fish Resources, Suez University, Suez 43518, Egypt
| | - Abeer A. Ghoniem
- Microbial Activity Unit, Department of Microbiology, Soils, Water and Environment Research Institute, Agricultural Research Center, Giza 12619, Egypt; (A.A.G.); (M.S.E.H.)
| | - Fatimah O. Al-Otibi
- Botany and Microbiology Department, Faculty of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Yosra A. Helmy
- Department of Veterinary Science, Martin-Gatton College of Agriculture, Food, and Environment, University of Kentucky, Lexington, KY 40546, USA;
| | - Mohammed S. El Hersh
- Microbial Activity Unit, Department of Microbiology, Soils, Water and Environment Research Institute, Agricultural Research Center, Giza 12619, Egypt; (A.A.G.); (M.S.E.H.)
| | - Khaled M. Elattar
- Unit of Genetic Engineering and Biotechnology, Faculty of Science, Mansoura University, Mansoura 35516, Egypt;
| | - WesamEldin I. A. Saber
- Microbial Activity Unit, Department of Microbiology, Soils, Water and Environment Research Institute, Agricultural Research Center, Giza 12619, Egypt; (A.A.G.); (M.S.E.H.)
| | - Ashraf Elsayed
- Botany Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt;
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95
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Yunmam S, Lee HR, Hong SM, Kim JY, Kang TH, Lee AY, Jang DS, Kim SY. Aspacochioside C from Asparagus cochinchinensis attenuates eumelanin synthesis via inhibition of TRP2 expression. Sci Rep 2023; 13:14831. [PMID: 37684311 PMCID: PMC10491620 DOI: 10.1038/s41598-023-41248-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Aspacochioside C (ACC) is a steroidal saponin isolated from Asparagus cochinchinensis. Steroidal saponins, such as pseudoprotodioscin and dioscin, are known to inhibit melanogenesis, but the role of ACC in melanogenesis remains unknown. Due to the toxic effect of the commonly used skin whitening agents like arbutin, kojic acid and α-lipoic acid alternative plant products are recentlybeen studied for their anti-hypergmentation effect. This study explores the role of ACC in melanogenesis in both in vivo and in vitro models. Here, we for the first time demonstrate that ACC attenuated α-MSH- and UVB-induced eumelanin production by inhibiting tyrosinase-related protein (TRP)-2 protein expression in both murine B16F10 and human melanoma MNT1 cells. However, ACC had no significant effect on pheomelanin concentration. ACC also decreased the pigmentation density in zebrafish embryos, which indicates that ACC targets TRP2 and inhibits eumelanin synthesis. Our results demonstrate that ACC inhibits TRP2, thereby attenuating eumelanin synthesis both in in vitro and in vivo zebrafish model. Therefore, ACC can potentially be used as an anti-melanogenic agent for both aesthetic and pharmaceutical purposes.
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Affiliation(s)
- Silvia Yunmam
- College of Pharmacy, Gachon University, 191, Hambakmoero, Yeonsu-gu, Incheon, 21936, Republic of Korea
- Institute of Bioresources and Sustainable Development, Imphal, Manipur, 795001, India
| | - Hae Ran Lee
- College of Pharmacy, Gachon University, 191, Hambakmoero, Yeonsu-gu, Incheon, 21936, Republic of Korea
| | - Seong Min Hong
- College of Pharmacy, Gachon University, 191, Hambakmoero, Yeonsu-gu, Incheon, 21936, Republic of Korea
| | - Ji-Young Kim
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Tong Ho Kang
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Global Campus, Gyeonggi, 17104, Republic of Korea
| | - Ai Young Lee
- Department of Dermatology, Graduate School of Medicine, Dongguk University Seoul, Goyang, Republic of Korea
| | - Dae Sik Jang
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea.
| | - Sun Yeou Kim
- College of Pharmacy, Gachon University, 191, Hambakmoero, Yeonsu-gu, Incheon, 21936, Republic of Korea.
- Gachon Institute of Pharmaceutical Science, Gachon University, Yeonsu-gu, Incheon, 21565, Republic of Korea.
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96
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Yuzon JD, Schultzhaus Z, Wang Z. Transcriptomic and genomic effects of gamma-radiation exposure on strains of the black yeast Exophiala dermatitidis evolved to display increased ionizing radiation resistance. Microbiol Spectr 2023; 11:e0221923. [PMID: 37676019 PMCID: PMC10581076 DOI: 10.1128/spectrum.02219-23] [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: 05/25/2023] [Accepted: 07/15/2023] [Indexed: 09/08/2023] Open
Abstract
Melanized fungi thrive in extreme environments, including those with high levels of ionizing radiation. To understand the role that melanin may play in ionizing radiation resistance, we previously performed an adaptive laboratory evolution experiment in which we used melanized and non-melanized strains of the yeast Exophiala dermatitidis to develop evolved lines that exhibit increased ionizing radiation resistance. In this study, we further characterized these evolved lines by analyzing their response to ionizing radiation at the transcriptomic and genomic levels. RNA sequencing showed that the response to gamma irradiation in both unevolved and evolved strains involved the induction of DNA repair genes. However, in the melanized lines evolved to exhibit increased ionizing radiation resistance, DNA-associated genes were constitutively expressed, compared to their expression levels in wild type. Non-melanized lines that were evolved to be resistant to ionizing radiation, on the other hand, exhibited upregulation of genes involved in redox homeostasis, even under non-irradiated conditions. Additionally, we characterized genome-wide mutations induced by a single high dose of gamma radiation in these evolved lines and observed that while melanin did not directly affect survival after gamma radiation exposure, melanized lines that evolved to exhibit higher ionizing radiation resistance experienced fewer mutations, whereas similarly evolved, non-melanized lines accumulated more mutations, similar to the parent, non-melanized strain. These results underscore the complex yet measurable role of melanin in the response to ionizing radiation in E. dermatitidis. Furthermore, this study enhances our understanding of the mechanisms underlying the recovery after ionizing radiation exposure in melanized fungi and offers insights into the potential therapeutic applications of melanin and other redox molecules for protecting against ionizing radiation-induced damage. IMPORTANCE Ionizing radiation poses a significant threat to living organisms and human health, given its destructive nature and widespread use in fields such as medicine and the potential for nuclear disasters. Melanized fungi exhibit remarkable survival capabilities, enduring doses up to 1,000-fold higher than mammals. Through adaptive laboratory evolution, we validated the protective role of constitutive upregulation of DNA repair genes in the black yeast Exophiala dermatitidis, enhancing survival after radiation exposure. Surprisingly, we found that evolved strains lacking melanin still achieved high levels of radioresistance. Our study unveiled the significance of robust activation and enhancement of redox homeostasis, as evidenced by the profound transcriptional changes and increased accumulation of mutations, in substantially improving ionizing radiation resistance in the absence of melanin. These findings underscore the delicate balance between DNA repair and redox homeostasis for an organism's ability to endure and recover from radiation exposure.
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Affiliation(s)
- Jennifer D. Yuzon
- National Research Council Postdoctoral Research Associate, US Naval Research Laboratory, Washington, USA
| | - Zachary Schultzhaus
- Center for Bio/Molecular Science and Engineering, US Naval Research Laboratory, Washington, USA
| | - Zheng Wang
- Center for Bio/Molecular Science and Engineering, US Naval Research Laboratory, Washington, USA
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97
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Son H, Haase JE, Docherty SL. The Concept of Double Protection in the Childhood Cancer Context. Cancer Nurs 2023; 46:335-343. [PMID: 37607369 DOI: 10.1097/ncc.0000000000001112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND The concept of double protection is used to describe communication avoidance used by parents and their child or adolescents with cancer in attempts to protect the other against disease-related stress and emotions, resulting from communication about the cancer, its treatment, and thoughts. This concept has received limited attention in the research literature. OBJECTIVES The aims of this concept analysis are to (1) explore its defining characteristics, applicability, and utility, (2) spotlight the concept and increase awareness and interest among healthcare providers and researchers, and (3) provide a direction for future interventions to improve parent-child communication in the childhood cancer context. METHODS Rodgers' Evolutionary Concept Analysis was used, and the findings from a study that explored the communication experience of Korean adolescents with cancer and their parents were integrated. RESULTS This study explored the attributes, antecedents, consequences, and related terms. The following attributes were extracted: intention to protect, bidirectional, and absence of parent-child communication at a deeper level. CONCLUSION Clarification of the concept of double protection provides insight into the concept as a barrier to engagement in parent-child communication and supports the significance of double protection in the childhood cancer context. IMPLICATIONS FOR PRACTICE There is a need for increased awareness of the challenges and dangers inherent in family communication avoidance, double protection. In order to address the issue, developing developmentally appropriate and valid clinical assessment tool and interventions are required. More research on the evidence-based benefits of effective parent-child communication is also required.
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Affiliation(s)
- Heeyeon Son
- Author Affiliations: School of Nursing, Duke University, Durham, North Carolina (Mrs Heeyeon Son and Dr Docherty); and School of Nursing, Indiana University, Indianapolis, Indiana (Dr Haase)
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98
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Ye F, Chen W, Deng Z, Chen SL, Dong Z, Dang L, Li MD. Ultrafast excited-state energy dissipation pathway of diethylamino hydroxybenzoyl hexyl benzoate (DHHB) via the nanoparticles. Photochem Photobiol Sci 2023; 22:2133-2142. [PMID: 37195390 DOI: 10.1007/s43630-023-00435-z] [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: 12/17/2022] [Accepted: 05/03/2023] [Indexed: 05/18/2023]
Abstract
The organic UVA filter is popularized in sunscreen cosmetics due to the advantages of excellent light stability and high molar extinction coefficient. However, the poor water solubility of organic UV filters has been a common problem. Given that nanoparticles (NPs) can significantly improve the water solubility of organic chemicals. Meanwhile, the excited-state relaxation pathways of NPs might differ from their solution. Here, the NPs of diethylamino hydroxybenzoyl hexyl benzoate (DHHB), a popular organic UVA filter, were prepared by an advanced ultrasonic micro-flow reactor. The surfactant (sodium dodecyl sulfate) was selected as an effective stabilizer to prevent the self-aggregation of the NPs for DHHB. Femtosecond transient ultrafast spectroscopy (fs-TA) and theoretical calculations were utilized to trace and explain the excited-state evolution of DHHB in NPs suspension and its solution. The results reveal that the surfactant-stabilized NPs of DHHB reserve a similarly good performance of ultrafast excited-state relaxation. The stability characterization experiments demonstrate that the strategy of surfactant-stabilized NPs for sunscreen chemicals can maintain its stability and enhance the water solubility of DHHB compared with that of the solution phase. Therefore, the surfactant-stabilized NPs of organic UV filters are an effective method to improve water solubility and keep the stability from aggregation and photoexcitation.
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Affiliation(s)
- Fanwei Ye
- College of Chemistry and Chemical Engineering, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, No 243, University Road, Shantou, 515063, China
| | - Wenbin Chen
- College of Chemistry and Chemical Engineering, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, No 243, University Road, Shantou, 515063, China
| | - Ziqi Deng
- Department of Chemistry, the University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Shun-Li Chen
- College of Chemistry and Chemical Engineering, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, No 243, University Road, Shantou, 515063, China
| | - Zhengya Dong
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, China
| | - Li Dang
- College of Chemistry and Chemical Engineering, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, No 243, University Road, Shantou, 515063, China.
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, China.
| | - Ming-De Li
- College of Chemistry and Chemical Engineering, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, No 243, University Road, Shantou, 515063, China.
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, China.
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99
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Busch L, Kröger M, Zamudio Díaz DF, Schleusener J, Lohan SB, Ma J, Witzel C, Keck CM, Meinke MC. Far-UVC- and UVB-induced DNA damage depending on skin type. Exp Dermatol 2023; 32:1582-1587. [PMID: 37545424 DOI: 10.1111/exd.14902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/04/2023] [Accepted: 07/23/2023] [Indexed: 08/08/2023]
Abstract
Far-UVC radiation sources of wavelengths 222 nm and 233 nm represent an interesting potential alternative for the antiseptic treatment of the skin due to their high skin compatibility. Nevertheless, no studies on far-UVC-induced DNA damage in different skin types have been published to date, which this study aims for. After irradiating the skin with far-UVC of the wavelengths 222 and 233 nm as well as broadband UVB, the tissue was screened for cyclobutane pyrimidine dimer-positive (CPD+ ) cells using immunohistochemistry. The epidermal DNA damage was lower in dark skin types than in fair skin types after irradiation at 233 nm. Contrary to this, irradiation at 222 nm caused no skin type-dependent differences, which can be attributed to the decreased penetration depth of radiation. UVB showed the relatively strongest differences between light and dark skin types when using a suberythemal dose of 3 mJ/cm2 . As melanin is known for its photoprotective effect, we evaluated the ratio of melanin content in the stratum basale and stratum granulosum in samples of different skin types using two-photon excited fluorescence lifetime imaging (TPE-FLIM) finding a higher ratio up to skin type IV-V. As far-UVC is known to penetrate only into the upper layers of the viable skin, the aforementioned melanin ratio could explain the less pronounced differences between skin types after irradiation with far-UVC compared to UVB.
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Affiliation(s)
- Loris Busch
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Department of Pharmaceutics and Biopharmaceutics, Philipps-Universität Marburg, Marburg, Germany
| | - Marius Kröger
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Daniela F Zamudio Díaz
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Technische Universität Berlin, Institute of Food Technology and Food Chemistry, Berlin, Germany
| | - Johannes Schleusener
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Silke B Lohan
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Jackie Ma
- Department of Artificial Intelligence, Fraunhofer Heinrich Hertz Institute, Berlin, Germany
| | - Christian Witzel
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Cornelia M Keck
- Department of Pharmaceutics and Biopharmaceutics, Philipps-Universität Marburg, Marburg, Germany
| | - Martina C Meinke
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
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100
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Brunsgaard EK, Jensen J, Grossman D. Melanoma in skin of color: Part II. Racial disparities, role of UV, and interventions for earlier detection. J Am Acad Dermatol 2023; 89:459-468. [PMID: 35533770 DOI: 10.1016/j.jaad.2022.04.057] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 04/08/2022] [Accepted: 04/26/2022] [Indexed: 10/18/2022]
Abstract
Despite a higher incidence of melanoma among White individuals, melanoma-specific survival is worse among individuals with skin of color. Racial disparities in survival are multifactorial. Decreased skin cancer education focused on people with skin of color, lower rates of screening, increased socioeconomic barriers, higher proportions of more aggressive subtypes, and underrepresentation in research and professional education contribute to delays in diagnosis and treatment. Although high, intermittent UV exposure during childhood has been established as a significant modifiable risk factor for melanoma in individuals with lighter skin phototypes, there are limited data on UV exposure and melanoma risk in people with darker skin phototypes. The second article of this continuing medical education series will examine factors contributing to racial disparities in melanoma-specific survival, discuss the role of UV radiation, and address the need for further research and targeted educational interventions for melanoma in individuals with skin of color.
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Affiliation(s)
- Elise K Brunsgaard
- Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah
| | - Jakob Jensen
- Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah; Department of Communication, University of Utah, Salt Lake City, Utah
| | - Douglas Grossman
- Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah; Department of Dermatology, University of Utah Health Sciences Center, Salt Lake City, Utah; Department of Oncological Sciences, University of Utah Health Sciences Center, Salt Lake City, Utah.
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