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Lupon E, Berkane Y, Bertheuil N, Cetrulo CL, Vaillant C, Chaput B, Camuzard O, Lellouch AG. Nonsurgical Treatment of Postburn Hypopigmentation: A Literature Review. J Burn Care Res 2024; 45:601-607. [PMID: 38401148 DOI: 10.1093/jbcr/irae030] [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: 05/25/2023] [Indexed: 02/26/2024]
Abstract
The treatment of postburn hypopigmentation was primarily surgical before the advent of new technologies. Medical devices and therapies are emerging to manage scar sequelae that can be disfiguring and associated with severe psychosocial impact. These innovations have been poorly investigated for hypopigmentation, but they represent a real hope. We reviewed all articles published on Pubmed up to June 2022. Included studies had to specifically focus on treating postburn hypopigmented scars. All articles evaluating transient solutions such as make-up, and articles describing inflammation-linked hypopigmentation with no etiological details or no burn injury history were excluded. Through this review, we have highlighted 6 different types of nonsurgical treatments reported in postburn leukoderma potentially allowing definitive results. Electrophoto-biomodulation or E light (combining intensive pulsed light, radiofrequency, and cooling), topical daylight psoralen UVA therapy, and lasers (fractional lasers using pulse energies or CO2FL devices, lasers-assisted drug delivery as local bimatoprost and tretinoin or pimecrolimus) have been explored with encouraging results in hypopigmented burns. Finally, other promising medical strategies include using FK506, a nonsteroidal anti-inflammatory drug, to induce melanogenesis or using melanocyte-stimulating hormones with fractional laser-assisted drug deliveries, which are expected to emerge soon.
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Affiliation(s)
- Elise Lupon
- Department of Plastic and Reconstructive Surgery, Institut Universitaire Locomoteur et du Sport, Pasteur 2 Hospital, University Côte d'Azur, 06001 Nice, France
- Vascularized Composite Allotransplantation Laboratory, Center for Transplantation Sciences, Massachusetts General Hospital, Harvard Medical School, 02114 Boston, MA, USA
| | - Yanis Berkane
- Vascularized Composite Allotransplantation Laboratory, Center for Transplantation Sciences, Massachusetts General Hospital, Harvard Medical School, 02114 Boston, MA, USA
- Department of Plastic, Reconstructive and Aesthetic Surgery, Hospital Sud, University of Rennes 1, 35000 Rennes, France
| | - Nicolas Bertheuil
- Department of Plastic, Reconstructive and Aesthetic Surgery, Hospital Sud, University of Rennes 1, 35000 Rennes, France
| | - Curtis L Cetrulo
- Vascularized Composite Allotransplantation Laboratory, Center for Transplantation Sciences, Massachusetts General Hospital, Harvard Medical School, 02114 Boston, MA, USA
- Department of Plastic Surgery, Massachusetts General Hospital, 02114 Boston, MA, USA
| | - Camille Vaillant
- Department of Plastic, Reconstructive and Aesthetic Surgery, Hospital Sud, University of Rennes 1, 35000 Rennes, France
| | - Benoît Chaput
- Department of Plastic Surgery, University Toulouse III Paul Sabatier, 31000 Toulouse, France
| | - Olivier Camuzard
- Department of Plastic and Reconstructive Surgery, Institut Universitaire Locomoteur et du Sport, Pasteur 2 Hospital, University Côte d'Azur, 06001 Nice, France
| | - Alexandre G Lellouch
- Vascularized Composite Allotransplantation Laboratory, Center for Transplantation Sciences, Massachusetts General Hospital, Harvard Medical School, 02114 Boston, MA, USA
- Department of Plastic Surgery, Massachusetts General Hospital, 02114 Boston, MA, USA
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Carney BC, Bailey JK, Powell HM, Supp DM, Travis TE. Scar Management and Dyschromia: A Summary Report from the 2021 American Burn Association State of the Science Meeting. J Burn Care Res 2023; 44:535-545. [PMID: 36752791 DOI: 10.1093/jbcr/irad017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Indexed: 02/09/2023]
Abstract
Burn scars, and in particular, hypertrophic scars, are a challenging yet common outcome for survivors of burn injuries. In 2021, the American Burn Association brought together experts in burn care and research to discuss critical topics related to burns, including burn scars, at its State of the Science conference. Clinicians and researchers with burn scar expertise, as well as burn patients, industry representatives, and other interested stakeholders met to discuss issues related to burn scars and discuss priorities for future burn scar research. The various preventative strategies and treatment modalities currently utilized for burn scars were discussed, including relatively noninvasive therapies such as massage, compression, and silicone sheeting, as well as medical interventions such as corticosteroid injection and laser therapies. A common theme that emerged is that the efficacy of current therapies for specific patient populations is not clear, and further research is needed to improve upon these treatments and develop more effective strategies to suppress scar formation. This will necessitate quantitative analyses of outcomes and would benefit from creation of scar biobanks and shared data resources. In addition, outcomes of importance to patients, such as scar dyschromia, must be given greater attention by clinicians and researchers to improve overall quality of life in burn survivors. Herein we summarize the main topics of discussion from this meeting and offer recommendations for areas where further research and development are needed.
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Affiliation(s)
- Bonnie C Carney
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC, USA
- Department of Biochemistry, Georgetown University School of Medicine, Washington, DC, USA
| | - John K Bailey
- Department of Surgery, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Heather M Powell
- The Ohio State University, Departments of Materials Science and Engineering and Biomedical Engineering, Columbus, OH, USA
- Scientific Staff, Shriners Children's Ohio, Dayton, OH, USA
| | - Dorothy M Supp
- Scientific Staff, Shriners Children's Ohio, Dayton, OH, USA
- The University of Cincinnati College of Medicine, Department of Surgery, Cincinnati, OH, USA
| | - Taryn E Travis
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC, USA
- The Burn Center, MedStar Washington Hospital Center, Washington, DC, USA
- Department of Surgery, Georgetown University School of Medicine, Washington, DC, USA
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Carney BC, Oliver MA, Kurup S, Collins M, Keyloun JW, Moffatt LT, Shupp JW, Travis TE. Laser-assisted drug delivery of synthetic alpha melanocyte stimulating hormone and L-tyrosine leads to increased pigmentation area and expression of melanogenesis genes in a porcine hypertrophic scar model. Lasers Surg Med 2023. [PMID: 37051852 DOI: 10.1002/lsm.23663] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 03/17/2023] [Accepted: 03/31/2023] [Indexed: 04/14/2023]
Abstract
OBJECTIVES One symptom of hypertrophic scar (HTS) that can develop after burn injury is dyschromia with hyper- and hypopigmentation. There are limited treatments for these conditions. Previously, we showed there is no expression of alpha melanocyte stimulating hormone (α-MSH) in hypopigmented scars, and if these melanocytes are treated with synthetic α-MSH in vitro, they respond by repigmenting. The current study tested the same hypothesis in the in vivo environment using laser-assisted drug delivery (LADD). METHODS HTSs were created in red Duroc pigs. At Day 77 (pre), they were treated with CO2 fractional ablative laser (FLSR). Synthetic α-MSH was delivered as a topical solution dissolved in l-tyrosine (n = 6, treated). Control scars received LADD of l-tyrosine only (n = 2, control). Scars were treated and examined weekly through Week 4. Digital images and punch biopsies of hyper, hypo-, and normally pigmented scar and skin were collected. Digital pictures were analyzed with ImageJ by tracing the area of hyperpigmentation. Epidermal sheets were obtained from punch biopsies through dispase separation and RNA was isolated. qRT-PCR was run for melanogenesis-related genes: tyrosinase (TYR), tyrosinase-related protein-1 (TYRP1), and dopachrome tautomerase (DCT). Two-way ANOVA with multiple comparisons and Dunnett's correction compared the groups. RESULTS The areas of hyperpigmentation were variable before treatment. Therefore, data is represented as fold-change where each scar was normalized to its own pre value. Within the LADD of NDP α-MSH + l-tyrosine group, hyperpigmented areas gradually increased each week, reaching 1.3-fold over pre by Week 4. At each timepoint, area of hyperpigmentation was greater in the treated versus the control (1.04 ± 0.05 vs. 0.89 ± 0.08, 1.21 ± 0.07 vs. 0.98 ± 0.24, 1.21 ± 0.08 vs. 1.04 ± 0.11, 1.28 ± 0.11 vs. 0.94 ± 0.25; fold-change from pre-). Within the treatment group, pretreatment, levels of TYR were decreased -17.76 ± 4.52 below the level of normal skin in hypopigmented scars. After 1 treatment, potentially due to laser fractionation, the levels decreased to -43.49 ± 5.52. After 2, 3, and 4 treatments, there was ever increasing levels of TYR to almost the level of normally pigmented skin (-35.74 ± 15.72, -23.25 ± 6.80, -5.52 ± 2.22 [p < 0.01, Week 4]). This pattern was also observed for TYRP1 (pre = -12.94 ± 1.82, Week 1 = -48.85 ± 13.25 [p < 0.01], Weeks 2, 3, and 4 = -34.45 ± 14.64, -28.19 ± 4.98, -6.93 ± 3.05 [p < 0.01, Week 4]) and DCT (pre = -214.95 ± 89.42, Week 1 = -487.93 ± 126.32 [p < 0.05], Weeks 2, 3, and 4 = -219.06 ± 79.33, -72.91 ± 20.45 [p < 0.001], -76.00 ± 24.26 [p < 0.001]). Similar patterns were observed for scars treated with LADD of l-tyrosine alone without NDP α-MSH. For each gene, in hyperpigmented scar, levels increased at Week 4 of treatment compared to Week 1 (p < 0.01). CONCLUSIONS A clinically-relevant FLSR treatment method can be combined with topical delivery of synthetic α-MSH and l-tyrosine to increase the area of pigmentation and expression of melanogenesis genes in hypopigmented HTS. LADD of l-tyrosine alone leads to increased expression of melanogenesis genes. Future studies will aim to optimize drug delivery, timing, and dosing.
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Affiliation(s)
- Bonnie C Carney
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, District of Columbia, USA
- Department of Surgery, Georgetown University School of Medicine, Washington, District of Columbia, USA
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia, USA
| | - Mary A Oliver
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, District of Columbia, USA
| | - Sanjana Kurup
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, District of Columbia, USA
- Howard University College of Medicine, Washington, District of Columbia, USA
| | - Monica Collins
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, District of Columbia, USA
- Georgetown University School of Medicine, Washington, District of Columbia, USA
| | - John W Keyloun
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, District of Columbia, USA
- Department of Surgery, The Burn Center, MedStar Washington Hospital Center, Washington, District of Columbia, USA
| | - Lauren T Moffatt
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, District of Columbia, USA
- Department of Surgery, Georgetown University School of Medicine, Washington, District of Columbia, USA
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia, USA
| | - Jeffrey W Shupp
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, District of Columbia, USA
- Department of Surgery, Georgetown University School of Medicine, Washington, District of Columbia, USA
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia, USA
- Department of Surgery, The Burn Center, MedStar Washington Hospital Center, Washington, District of Columbia, USA
| | - Taryn E Travis
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, District of Columbia, USA
- Department of Surgery, Georgetown University School of Medicine, Washington, District of Columbia, USA
- Georgetown University School of Medicine, Washington, District of Columbia, USA
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Rao M, Young K, Jackson-Cowan L, Kourosh A, Theodosakis N. Post-Inflammatory Hypopigmentation: Review of the Etiology, Clinical Manifestations, and Treatment Options. J Clin Med 2023; 12:jcm12031243. [PMID: 36769891 PMCID: PMC9917556 DOI: 10.3390/jcm12031243] [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: 12/29/2022] [Revised: 01/09/2023] [Accepted: 01/30/2023] [Indexed: 02/08/2023] Open
Abstract
Post-inflammatory hypopigmentation is a common acquired pigmentary disorder that is more prominent in skin of color, leading to great cosmetic and psychosocial implications. Often, a diagnosis with a pigmentary disorder can negatively impact an individual's health-related quality of life and may result in stigma. Although most cases of post-inflammatory hypopigmentation resolve spontaneously over time, a systematic diagnostic approach can help with identifying the underlying etiology and informing treatment strategies. It can be due to cutaneous inflammation, sequelae of inflammatory or infectious dermatoses, or dermatologic procedures. Therefore, a thorough understanding of the epidemiology, patient history, physical exam findings, and clinical features of post-inflammatory hypopigmentation phenomenon can explain the primary cause to providers and allow for patient education. It is also important to understand the various therapeutic approaches available and the efficacy of these options, which will inform providers to choose the appropriate therapy for patients. Although algorithms exist for classifying acquired disorders of hypopigmentation, there are no established algorithms for the diagnosis and treatment of post-inflammatory hypopigmentation, which warrants further exploration and discourse.
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Affiliation(s)
- Medha Rao
- Department of Dermatology, Massachusetts General Hospital, Boston, MA 02114, USA
- Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA
| | | | - Ladonya Jackson-Cowan
- The Medical College of Georgia at Augusta University, AU/UGA Medical Partnership, Athens, GA 30602, USA
| | - Arianne Kourosh
- Department of Dermatology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Nicholas Theodosakis
- Department of Dermatology, Massachusetts General Hospital, Boston, MA 02114, USA
- Correspondence: ; Tel.: +617-724-2919
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Altemir A, Boixeda P. [Translated article] Laser Treatment of Burn Scars. ACTAS DERMO-SIFILIOGRAFICAS 2022; 113:T938-T944. [DOI: 10.1016/j.ad.2022.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 06/20/2022] [Indexed: 11/07/2022] Open
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Altemir A, Boixeda P. Tratamiento láser de cicatrices por quemaduras. ACTAS DERMO-SIFILIOGRAFICAS 2022; 113:938-944. [DOI: 10.1016/j.ad.2022.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 05/31/2022] [Accepted: 06/20/2022] [Indexed: 10/15/2022] Open
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Commentary on Laser Treatment of Hypopigmented Traumatic Scars. Dermatol Surg 2022; 48:207-208. [PMID: 35113074 DOI: 10.1097/dss.0000000000003336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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