1
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Zhang W, Luosang C, Yuan C, Guo T, Wei C, Liu J, Lu Z. Selection signatures of wool color in Gangba sheep revealed by genome-wide SNP discovery. BMC Genomics 2024; 25:606. [PMID: 38886664 PMCID: PMC11181613 DOI: 10.1186/s12864-024-10464-2] [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: 03/03/2024] [Accepted: 05/29/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND Gangba sheep as a famous breed of Tibetan sheep, its wool color is mainly white and black. Gangba wool is economically important as a high-quality raw material for Tibetan blankets and Tibetan serge. However, relatively few studies have been conducted on the wool color of Tibetan sheep. RESULTS To fill this research gap, this study conducted an in-depth analysis of two populations of Gangba sheep (black and white wool color) using whole genome resequencing to identify genetic variation associated with wool color. Utilizing PCA, Genetic Admixture, and N-J Tree analyses, the present study revealed a consistent genetic relationship and structure between black and white wool colored Gangba sheep populations, which is consistent with their breed history. Analysis of selection signatures using multiple methods (FST, π ratio, Tajima's D), 370 candidate genes were screened in the black wool group (GBB vs GBW); among them, MC1R, MLPH, SPIRE2, RAB17, SMARCA4, IRF4, CAV1, USP7, TP53, MYO6, MITF, MC2R, TET2, NF1, JAK1, GABRR1 genes are mainly associated with melanin synthesis, melanin delivery, and distribution. The enrichment results of the candidate genes identified 35 GO entries and 19 KEGG pathways associated with the formation of the black phenotype. 311 candidate genes were screened in the white wool group (GBW vs GBB); among them, REST, POU2F1, ADCY10, CCNB1, EP300, BRD4, GLI3, and SDHA genes were mainly associated with interfering with the differentiation of neural crest cells into melanocytes, affecting the proliferation of melanocytes, and inhibiting melanin synthesis. 31 GO entries and 22 KEGG pathways were associated with the formation of the white phenotype. CONCLUSIONS This study provides important information for understanding the genetic mechanism of wool color in Gangba, and provides genetic knowledge for improving and optimizing the wool color of Tibetan sheep. Genetic improvement and selective breeding to produce wool of specific colors can meet the demand for a diversity of wool products in the Tibetan wool textile market.
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Affiliation(s)
- Wentao Zhang
- Key Laboratory of Animal Genetics and Breeding On Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
- State Key Laboratory of Animal Biotech Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Cuicheng Luosang
- Institute of Animal Science, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, 850009, China
| | - Chao Yuan
- Key Laboratory of Animal Genetics and Breeding On Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - Tingting Guo
- Key Laboratory of Animal Genetics and Breeding On Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - Caihong Wei
- State Key Laboratory of Animal Biotech Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Jianbin Liu
- Key Laboratory of Animal Genetics and Breeding On Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China.
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China.
| | - Zengkui Lu
- Key Laboratory of Animal Genetics and Breeding On Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China.
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China.
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Dong J, Peng Z, Chen M, Lai Y, Zhang X, Yu M, Zhong H, Liu J, Yue Y, Shang J. Long Non-Coding RNA Mir17hg Positively Regulates Melanogenesis by Inhibiting TGFβ Receptor 2 under Psychological Stress. J Invest Dermatol 2024; 144:358-368.e10. [PMID: 37709007 DOI: 10.1016/j.jid.2023.08.019] [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: 01/17/2023] [Revised: 08/11/2023] [Accepted: 08/13/2023] [Indexed: 09/16/2023]
Abstract
Vitiligo is a common skin depigmentation disorder characterized by the patchy loss of skin color. Nowadays, it is recognized as being correlated with multiple genetic factors as well as the psychological conditions of individuals. Long noncoding RNAs have been reported to underlie the pathogenesis of vitiligo; however, the role of long noncoding RNAs in the stress-related depigmentation process remains largely unknown. In this study, the inhibition of melanocyte function was observed in C57BL/6J mice modeled through chronic restraint stress. Furthermore, downregulation of the expression of the long noncoding RNAs Mir17hg was identified using RNA sequencing. The regulatory role of Mir17hg in melanogenesis was also investigated in melanocytes and zebrafish embryos through overexpression or knockdown. Finally, TGFβ receptor 2 was shown to be a downstream target in Mir17hg-mediated melanogenesis regulation, in which the classical TGFβ/SMAD signaling cascade and the PI3K/AKT/mTOR signaling cascade play important roles. In conclusion, our results revealed an important regulatory role of Mir17hg in melanogenesis through inhibition of TGFβR2, which can provide a potential therapeutic target for treating skin depigmentation disorders.
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Affiliation(s)
- Jing Dong
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Zan Peng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Minghan Chen
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yifan Lai
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xiaofeng Zhang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Meng Yu
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Hui Zhong
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jun Liu
- New Drug Screening Center, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, China
| | - Yunyun Yue
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China.
| | - Jing Shang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China; Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing, China; NMPA Key Laboratory for Research and Evaluation of Cosmetics, National Institutes for Food and Drug Control, Beijing, China.
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3
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Dopytalska K, Czaplicka A, Szymańska E, Walecka I. The Essential Role of microRNAs in Inflammatory and Autoimmune Skin Diseases-A Review. Int J Mol Sci 2023; 24:ijms24119130. [PMID: 37298095 DOI: 10.3390/ijms24119130] [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: 04/08/2023] [Revised: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023] Open
Abstract
The etiopathogenesis of autoimmune skin diseases is complex and still not fully understood. The role of epigenetic factors is emphasized in the development of such diseases. MicroRNAs (miRNAs), a group of non-coding RNAs (ncRNAs-non-coding RNAs), are one of the important post-transcriptional epigenetic factors. miRNAs have a significant role in the regulation of the immune response by participating in the process of the differentiation and activation of B and T lymphocytes, macrophages, and dendritic cells. Recent advances in research on epigenetic factors have provided new insights into the pathogenesis and potential diagnostic and therapeutic targets of many pathologies. Numerous studies revealed a change in the expression of some microRNAs in inflammatory skin disorders, and the regulation of miRNA expression is a promising therapeutic goal. This review presents the state of the art regarding changes in the expression and role of miRNAs in inflammatory and autoimmune skin diseases, including psoriasis, atopic dermatitis, vitiligo, lichen planus, hidradenitis suppurativa, and autoimmune blistering diseases.
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Affiliation(s)
- Klaudia Dopytalska
- Department of Dermatology, Centre of Postgraduate Medical Education, 02-507 Warsaw, Poland
- Department of Dermatology, The National Institute of Medicine of the Ministry of the Interior and Administration, 02-507 Warsaw, Poland
| | - Anna Czaplicka
- Department of Dermatology, Centre of Postgraduate Medical Education, 02-507 Warsaw, Poland
- Department of Dermatology, The National Institute of Medicine of the Ministry of the Interior and Administration, 02-507 Warsaw, Poland
| | - Elżbieta Szymańska
- Department of Dermatology, Centre of Postgraduate Medical Education, 02-507 Warsaw, Poland
- Department of Dermatology, The National Institute of Medicine of the Ministry of the Interior and Administration, 02-507 Warsaw, Poland
| | - Irena Walecka
- Department of Dermatology, Centre of Postgraduate Medical Education, 02-507 Warsaw, Poland
- Department of Dermatology, The National Institute of Medicine of the Ministry of the Interior and Administration, 02-507 Warsaw, Poland
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Vand-Rajabpour F, Savage M, Belote RL, Judson-Torres RL. Critical Considerations for Investigating MicroRNAs during Tumorigenesis: A Case Study in Conceptual and Contextual Nuances of miR-211-5p in Melanoma. EPIGENOMES 2023; 7:9. [PMID: 37218870 PMCID: PMC10204420 DOI: 10.3390/epigenomes7020009] [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: 03/07/2023] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 05/24/2023] Open
Abstract
MicroRNAs are non-coding RNAs fundamental to metazoan development and disease. Although the aberrant regulation of microRNAs during mammalian tumorigenesis is well established, investigations into the contributions of individual microRNAs are wrought with conflicting observations. The underlying cause of these inconsistencies is often attributed to context-specific functions of microRNAs. We propose that consideration of both context-specific factors, as well as underappreciated fundamental concepts of microRNA biology, will permit a more harmonious interpretation of ostensibly diverging data. We discuss the theory that the biological function of microRNAs is to confer robustness to specific cell states. Through this lens, we then consider the role of miR-211-5p in melanoma progression. Using literature review and meta-analyses, we demonstrate how a deep understating of domain-specific contexts is critical for moving toward a concordant understanding of miR-211-5p and other microRNAs in cancer biology.
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Affiliation(s)
- Fatemeh Vand-Rajabpour
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, P.O. Box 14155-6447, Tehran 14176-13151, Iran
| | - Meghan Savage
- Department of Oncological Sciences, University of Utah, Salt Lake City, UT 84112, USA
| | - Rachel L. Belote
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA
| | - Robert L. Judson-Torres
- Department of Oncological Sciences, University of Utah, Salt Lake City, UT 84112, USA
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA
- Department of Dermatology, University of Utah, Salt Lake City, UT 84112, USA
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5
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Fernandes B, Cavaco-Paulo A, Matamá T. A Comprehensive Review of Mammalian Pigmentation: Paving the Way for Innovative Hair Colour-Changing Cosmetics. BIOLOGY 2023; 12:biology12020290. [PMID: 36829566 PMCID: PMC9953601 DOI: 10.3390/biology12020290] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/26/2023] [Accepted: 02/09/2023] [Indexed: 02/15/2023]
Abstract
The natural colour of hair shafts is formed at the bulb of hair follicles, and it is coupled to the hair growth cycle. Three critical processes must happen for efficient pigmentation: (1) melanosome biogenesis in neural crest-derived melanocytes, (2) the biochemical synthesis of melanins (melanogenesis) inside melanosomes, and (3) the transfer of melanin granules to surrounding pre-cortical keratinocytes for their incorporation into nascent hair fibres. All these steps are under complex genetic control. The array of natural hair colour shades are ascribed to polymorphisms in several pigmentary genes. A myriad of factors acting via autocrine, paracrine, and endocrine mechanisms also contributes for hair colour diversity. Given the enormous social and cosmetic importance attributed to hair colour, hair dyeing is today a common practice. Nonetheless, the adverse effects of the long-term usage of such cosmetic procedures demand the development of new methods for colour change. In this context, case reports of hair lightening, darkening and repigmentation as a side-effect of the therapeutic usage of many drugs substantiate the possibility to tune hair colour by interfering with the biology of follicular pigmentary units. By scrutinizing mammalian pigmentation, this review pinpoints key targetable processes for the development of innovative cosmetics that can safely change the hair colour from the inside out.
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Affiliation(s)
- Bruno Fernandes
- CEB—Centre of Biological Engineering, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
| | - Artur Cavaco-Paulo
- CEB—Centre of Biological Engineering, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
- Correspondence: (A.C.-P.); (T.M.); Tel.: +351-253-604-409 (A.C.-P.); +351-253-601-599 (T.M.)
| | - Teresa Matamá
- CEB—Centre of Biological Engineering, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
- Correspondence: (A.C.-P.); (T.M.); Tel.: +351-253-604-409 (A.C.-P.); +351-253-601-599 (T.M.)
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6
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Navarro-Calvo J, Esquiva G, Gómez-Vicente V, Valor LM. MicroRNAs in the Mouse Developing Retina. Int J Mol Sci 2023; 24:ijms24032992. [PMID: 36769311 PMCID: PMC9918188 DOI: 10.3390/ijms24032992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/23/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
The retina is among the highest organized tissues of the central nervous system. To achieve such organization, a finely tuned regulation of developmental processes is required to form the retinal layers that contain the specialized neurons and supporting glial cells to allow precise phototransduction. MicroRNAs are a class of small RNAs with undoubtful roles in fundamental biological processes, including neurodevelopment of the brain and the retina. This review provides a short overview of the most important findings regarding microRNAs in the regulation of retinal development, from the developmental-dependent rearrangement of the microRNA expression program to the key roles of particular microRNAs in the differentiation and maintenance of retinal cell subtypes.
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Affiliation(s)
- Jorge Navarro-Calvo
- Unidad de Investigación, Hospital General Universitario Dr. Balmis, ISABIAL, 03010 Alicante, Spain
| | - Gema Esquiva
- Department of Optics, Pharmacology and Anatomy, University of Alicante, 03690 Alicante, Spain
| | - Violeta Gómez-Vicente
- Department of Optics, Pharmacology and Anatomy, University of Alicante, 03690 Alicante, Spain
| | - Luis M. Valor
- Unidad de Investigación, Hospital General Universitario Dr. Balmis, ISABIAL, 03010 Alicante, Spain
- Correspondence: ; Tel.: +34-965-913-988
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7
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A Network of MicroRNAs and mRNAs Involved in Melanosome Maturation and Trafficking Defines the Lower Response of Pigmentable Melanoma Cells to Targeted Therapy. Cancers (Basel) 2023; 15:cancers15030894. [PMID: 36765859 PMCID: PMC9913661 DOI: 10.3390/cancers15030894] [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: 11/01/2022] [Revised: 01/16/2023] [Accepted: 01/23/2023] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND The ability to increase their degree of pigmentation is an adaptive response that confers pigmentable melanoma cells higher resistance to BRAF inhibitors (BRAFi) compared to non-pigmentable melanoma cells. METHODS Here, we compared the miRNome and the transcriptome profile of pigmentable 501Mel and SK-Mel-5 melanoma cells vs. non-pigmentable A375 melanoma cells, following treatment with the BRAFi vemurafenib (vem). In depth bioinformatic analyses (clusterProfiler, WGCNA and SWIMmeR) allowed us to identify the miRNAs, mRNAs and biological processes (BPs) that specifically characterize the response of pigmentable melanoma cells to the drug. Such BPs were studied using appropriate assays in vitro and in vivo (xenograft in zebrafish embryos). RESULTS Upon vem treatment, miR-192-5p, miR-211-5p, miR-374a-5p, miR-486-5p, miR-582-5p, miR-1260a and miR-7977, as well as GPR143, OCA2, RAB27A, RAB32 and TYRP1 mRNAs, are differentially expressed only in pigmentable cells. These miRNAs and mRNAs belong to BPs related to pigmentation, specifically melanosome maturation and trafficking. In fact, an increase in the number of intracellular melanosomes-due to increased maturation and/or trafficking-confers resistance to vem. CONCLUSION We demonstrated that the ability of pigmentable cells to increase the number of intracellular melanosomes fully accounts for their higher resistance to vem compared to non-pigmentable cells. In addition, we identified a network of miRNAs and mRNAs that are involved in melanosome maturation and/or trafficking. Finally, we provide the rationale for testing BRAFi in combination with inhibitors of these biological processes, so that pigmentable melanoma cells can be turned into more sensitive non-pigmentable cells.
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8
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Yu X, Cui Y, Zhu X, Xu H, Li L, Gao G. MicroRNAs: Emerging players in the pathogenesis of vitiligo. Front Cell Dev Biol 2022; 10:964982. [PMID: 36187493 PMCID: PMC9523438 DOI: 10.3389/fcell.2022.964982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
Vitiligo is an autoimmune skin disease characterized by presence of pale patchy areas of depigmentation. MicroRNAs (miRNAs) are important regulators of gene expression and play significant roles in diverse biological and pathological processes. Accumulating evidence has shown that miRNAs were differentially expressed in skin lesions and peripheral blood mononuclear cells of patients with vitiligo. In particular, miRNAs are significantly correlated with the development and progression of vitiligo. The abundance of some miRNAs in serum was also correlated with the vitiligo lesion severity, indicating that miRNAs might serve as prognostic biomarkers. Importantly, the direct involvement of miRNAs in the pathogenesis of vitiligo has been demonstrated. For example, increased expression of miR-25 contributes to vitiligo through promoting the dysfunction and oxidative stress-induced destruction of melanocytes. However, there are limited studies on the function and mechanism of deregulated miRNAs in vitiligo. Further studies are required to establish clinical applications of miRNAs for vitiligo. More in-depth investigations of miRNAs are needed for the understanding of the pathogenesis of vitiligo and the development of novel therapeutic targets. This present review summarizes the current literature on the deregulation and pathogenic roles of miRNAs in vitiligo. We also highlight the potential clinical applications of miRNAs in patients with vitiligo.
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Affiliation(s)
| | | | | | | | - Linfeng Li
- *Correspondence: Linfeng Li, ; Guangcheng Gao,
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9
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Mahmoudi A, Moadab F, Safdarian E, Navashenaq JG, Rezaee M, Gheibihayat SM. MicroRNAs and Efferocytosis: Implications for Diagnosis and Therapy. Mini Rev Med Chem 2022; 22:2641-2660. [PMID: 35362375 DOI: 10.2174/1389557522666220330150937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/24/2021] [Accepted: 01/19/2022] [Indexed: 11/22/2022]
Abstract
About 10-100 billion cells are generated in the human body in a day, and accordingly, 10-100 billion cells predominantly die for maintaining homeostasis. Dead cells generated by apoptosis are also rapidly engulfed by macrophages (Mθs) to be degraded. In case of the inefficient engulfment of apoptotic cells (ACs) via Mθs, they experience secondary necrosis and thus release intracellular materials, which display damage-associated molecular patterns (DAMPs) and result in diseases. Over the last decades, researchers have also reflected on the significant contribution of microRNAs (miRNAs) to autoimmune diseases through the regulation of Mθs functions. Moreover, miRNAs have shown intricate involvement with completely adjusting basic Mθs functions, such as phagocytosis, inflammation, efferocytosis, tumor promotion, and tissue repair. In this review, the mechanism of efferocytosis containing "Find-Me", "Eat-Me", and "Digest-Me" signals is summarized and the biogenesis of miRNAs is briefly described. Finally, the role of miRNAs in efferocytosis is discussed. It is concluded that miRNAs represent promising treatments and diagnostic targets in impaired phagocytic clearance, which leads to different diseases.
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Affiliation(s)
- Ali Mahmoudi
- Department of medical biotechnology and nanotechnology, faculty of medicine, Mashhad University of Medical science, Iran
| | - Fatemeh Moadab
- Medical student, Student Research Committee, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Esmat Safdarian
- Legal Medicine Research Center, Legal Medicine Organization, Tehran Iran
| | | | - Mehdi Rezaee
- Department of Medical Biotechnology, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran;
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Seyed Mohammad Gheibihayat
- Department of Medical Biotechnology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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10
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Zhang Z, Shen W, Liu W, Lyu L. Role of miRNAs in melanin metabolism: Implications in melanin-related diseases. J Cosmet Dermatol 2022; 21:4146-4159. [PMID: 35041756 DOI: 10.1111/jocd.14762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 12/02/2021] [Accepted: 01/05/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND MicroRNAs (miRNAs) are short single-stranded non-coding RNAs that regulate degradation and expression of messenger RNA (mRNA) and play a wide range of key roles in different biological processes. They mediate different stages of melanocyte differentiation, growth, and apoptosis through a variety of pathways and can mediate melanin production by targeting key enzymes. AIMS This article was aimed to review the role of miRNAs in melanin metabolism and to introduce the role and significance of miRNAs in melanin-related diseases. MATERIALS & METHODS Systematic search and retrospective review were performed on the published data. RESULTS This paper reviews the process of melanin synthesis and the regulatory mechanism, explores the miRNA expression profiles in different model organisms, and introduces the mechanisms of several key miRNAs participating in melanin metabolism through target genes. We also explore the potential role of miRNA as a new target for the treatment of melanin metabolism disease, including vitiligo, melanoma, and chloasma. CONCLUSION miRNAs play a key role in melanin-related diseases, and the miRNAs involved may be potential therapeutic targets.
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Affiliation(s)
- Zhigang Zhang
- Department of Dermatology, Affiliated Hospital of Yunnan University, Yunnan University, Kunming, China.,Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming, China
| | - Wanlu Shen
- Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming, China
| | - Weimin Liu
- Department of Dermatology, Affiliated Hospital of Yunnan University, Yunnan University, Kunming, China
| | - Lechun Lyu
- Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming, China
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11
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Li X, Ponandai‐Srinivasan S, Nandakumar KS, Fabre S, Xu Landén N, Mavon A, Khmaladze I. Targeting microRNA for improved skin health. Health Sci Rep 2021; 4:e374. [PMID: 34667882 PMCID: PMC8506131 DOI: 10.1002/hsr2.374] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 08/11/2021] [Accepted: 08/18/2021] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND In human skin, miRNAs have important regulatory roles and are involved in the development, morphogenesis, and maintenance by influencing cell proliferation, differentiation, immune regulation, and wound healing. MiRNAs have been investigated for many years in various skin disorders such as atopic dermatitis, psoriasis, as well as malignant tumors. Only during recent times, cosmeceutical use of molecules/natural active ingredients to regulate miRNA expression for significant advances in skin health/care product development was recognized. AIM To review miRNAs with the potential to maintain and boost skin health and avoid premature aging by improving barrier function, preventing photoaging, hyperpigmentation, and chronological aging/senescence. METHODS Most of the cited articles were found through literature search on PubMed. The main search criteria was a keyword "skin" in combination with the following words: miRNA, photoaging, UV, barrier, aging, exposome, acne, wound healing, pigmentation, pollution, and senescence. Most of the articles reviewed for relevancy were published during the past 10 years. RESULTS All results are summarized in Figure 1, and they are based on cited references. CONCLUSIONS Thus, regulating miRNAs expression is a promising approach for novel therapy not only for targeting skin diseases but also for cosmeceutical interventions aiming to boost skin health.
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Affiliation(s)
- Xi Li
- Oriflame Cosmetics AB; Skin Research InstituteStockholmSweden
| | - Sakthi Ponandai‐Srinivasan
- Division of Obstetrics and Gynecology, Department of Women's and Children's HealthKarolinska Institute, and Karolinska University HospitalStockholmSweden
| | - Kutty Selva Nandakumar
- Southern Medical University, School of Pharmaceutical SciencesGuangzhouChina
- Medical Inflammation Research, Department of Medical Biochemistry and BiophysicsKarolinska InstitutetStockholmSweden
| | - Susanne Fabre
- Oriflame Cosmetics AB; Skin Research InstituteStockholmSweden
| | - Ning Xu Landén
- Department of Medicine, Solna, Dermatology and Venereology, Centre of Molecular MedicineKarolinska InstitutetStockholmSweden
| | - Alain Mavon
- Oriflame Cosmetics AB; Skin Research InstituteStockholmSweden
| | - Ia Khmaladze
- Oriflame Cosmetics AB; Skin Research InstituteStockholmSweden
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12
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Vellaichamy G, Kohli I, Zubair R, Yin C, Braunberger T, Nahhas AF, Nicholson C, Mohammad TF, Isedeh P, Lyons AB, Nartker N, Al-Jamal M, Matsui M, Karaman-Jurukovska N, Zhou L, Lim HW, Mi QS, Hamzavi IH. An in vivo model of postinflammatory hyperpigmentation and erythema: clinical, colorimetric and molecular characteristics. Br J Dermatol 2021; 186:508-519. [PMID: 34625951 DOI: 10.1111/bjd.20804] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/30/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Postinflammatory hyperpigmentation (PIH) is a common, acquired pigmentary disorder of the skin associated with significant quality-of-life impairment, especially in individuals with skin of colour. Current treatment for PIH is limited, largely due to a poor understanding of disease pathogenesis and the lack of a representative disease model. OBJECTIVES This study is intended to further develop, update and validate our previously designed in vivo model of acne-induced PIH/postinflammatory erythema (PIE) using different concentrations of trichloroacetic acid (TCA), a medium-depth chemical peel. METHODS Twenty-nine patients with skin types II-VI and clinician-confirmed presence of two or more truncal acne pustules and PIH/PIE were included. On the basis of Investigator's Global Assessment (IGA), clinical polarized photography (CPP), colorimetry and Skindex, we experimentally determined an optimum TCA concentration and assessed our model's ability to exhibit a dose-response relationship between degree of inciting insult and severity of resulting pigmentation. We also performed differential microRNA profiling and pathway analysis to explore the potential of microRNAs as molecular adjuncts to our model. RESULTS Application of TCA 30% produced lesions indistinguishable from acne-induced PIH and PIE lesions on the basis of colorimetry data without causing epidermal necrosis. Application of progressively increasing TCA doses from 20% to 30% resulted in concentration-dependent increases in CPP, IGA and colorimetry scores at all timepoints during the study. miRNA-31 and miRNA-23b may play a role in PIH pathogenesis, although further validation is required. CONCLUSIONS Our TCA-based in vivo model, using TCA concentrations between 20% and 30% with an optimum of 30%, enables the quantitative assessment of the pigmentary response to varying degrees of cutaneous inflammation in a fashion that mirrors natural acne-induced PIH and PIE.
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Affiliation(s)
- G Vellaichamy
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA.,Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
| | - I Kohli
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
| | - R Zubair
- Broward Health Medical Center, Fort Lauderdale, FL, USA
| | - C Yin
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, USA.,Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, USA
| | - T Braunberger
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
| | - A F Nahhas
- Department of Dermatology, Beaumont Hospital, Farmington Hills, MI, USA
| | - C Nicholson
- Department of Dermatology, Wayne State University, Dearborn, MI, USA
| | - T F Mohammad
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
| | - P Isedeh
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
| | - A B Lyons
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
| | - N Nartker
- Department of Dermatology, Wayne State University, Dearborn, MI, USA
| | - M Al-Jamal
- Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - M Matsui
- Department of Dermatology and Division of Environmental Sciences, School of Public Health, Columbia University, New York, NY, USA
| | | | - L Zhou
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA.,Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, USA.,Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, USA
| | - H W Lim
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
| | - Q-S Mi
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA.,Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, USA.,Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, USA
| | - I H Hamzavi
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
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13
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Shi HX, Zhang RZ, Xiao L, Wang L. Effects of keratinocyte-derived and fibroblast-derived exosomes on human epidermal melanocytes. Indian J Dermatol Venereol Leprol 2021; 88:322-331. [PMID: 34951940 DOI: 10.25259/ijdvl_1087_19] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 05/01/2021] [Indexed: 11/04/2022]
Abstract
BACKGROUND Exosomes have been demonstrated to carry proteins, membrane lipids, mRNAs and microRNAs which can be transferred to surrounding cells and regulate the functions of those recipient cells. OBJECTIVES The objective of the study was to investigate the effects of exosomes released by keratinocytes and fibroblasts on the proliferation, tyrosinase activity and melanogenesis of melanocytes. METHODS Melanocytes, keratinocytes and fibroblasts obtained from human foreskin were cultured and exosomes secreted by keratinocytes and fibroblasts were harvested from the culture supernatants by ultracentrifugation. Each exosome fraction was divided into two parts; one part was subjected to high-throughput sequencing using an Illumina HiSeq sequencer to characterize the microRNA expression profiles, while the other part was labeled with the fluorescent dye PKH67 and was then co-cultivated with epidermal melanocytes. RESULTS High-throughput sequencing analysis showed 168 differentially expressed microRNA within exosomes derived from keratinocytes and from fibroblasts, 97 of those being up-regulated with the other 71 down-regulated. Gene ontology analysis showed that the target genes responsible for these differentially expressed microRNAs were mainly enriched in the protein-binding region of molecular functions. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis showed that target genes regulated by differentially expressed microRNA were mainly involved in mitogen-activated protein kinase (MAPK) signaling pathway, Ras signaling pathway, cAMP signaling pathway and Wnt signaling pathway. Keratinocyte-derived exosomes were taken up by melanocytes co-cultured with them and promoted the proliferation, tyrosinase activity and melanin synthesis of those melanocytes. However, fibroblast-derived exosomes had no similar effects on melanocytes. CONCLUSION Keratinocyte-derived exosomes but not fibroblast-derived exosomes were taken up by melanocytes in co-culture and significantly stimulated their proliferation, tyrosinase activity and melanin synthesis. Those different effects may be mainly due to the differential expression of microRNAs in exosomes derived from the different types of cells. LIMITATIONS Electron microscopy of the obtained exosomes and in-depth study of apparently differentially expressed microRNAs were not performed.
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Affiliation(s)
- Hai-Xia Shi
- Department of Dermatology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Ru-Zhi Zhang
- Department of Dermatology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Li Xiao
- Department of Dermatology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Li Wang
- Department of Dermatology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
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14
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Carney BC, Dougherty RD, Moffatt LT, Simbulan-Rosenthal CM, Shupp JW, Rosenthal DS. Promoter Methylation Status in Pro-opiomelanocortin Does Not Contribute to Dyspigmentation in Hypertrophic Scar. J Burn Care Res 2021; 41:339-346. [PMID: 31541238 DOI: 10.1093/jbcr/irz168] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Burn injuries frequently result in hypertrophic scars (HTSs), specifically when excision and grafting are delayed due to limited resources or patient complications. In patient populations with dark baseline pigmentation, one symptom of HTS that often occurs is dyspigmentation. The mechanism behind dyspigmentation has not been explored, and, as such, prevention and treatment strategies for this morbidity are lacking. The mechanism by which cells make pigment is controlled at the apex of the pathway by pro-opiomelanocortin (POMC), which is cleaved to its products alpha-melanocyte-stimulating hormone (α-MSH) and adrenocorticotropin hormone (ACTH). α-MSH and ACTH secreted by keratinocytes bind to melanocortin 1 receptor (MC1R), expressed on melanocytes, to initiate melanogenesis. POMC protein expression is upregulated in hyperpigmented scar compared to hypopigmented scar by an unknown mechanism in a Duroc pig model of HTS. POMC RNA levels, as well as the POMC gene promoter methylation status were investigated as a possible mechanism. DNA was isolated from biopsies obtained from distinct areas of hyper- or hypopigmented scar and normal skin. DNA was bisulfite-converted, and amplified using two sets of primers to observe methylation patterns in two different CpG islands near the POMC promoter. Amplicons were then sequenced and methylation patterns were evaluated. POMC gene expression was significantly downregulated in hypopigmented scar compared to normal skin, consistent with previously reported protein expression levels. There were significant changes in methylation of the POMC promoter; however, none that would account for the development of hyper- or hypopigmentation. Future work will focus on other areas of POMC transcriptional regulation.
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Affiliation(s)
- Bonnie C Carney
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC.,Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC
| | - Ryan D Dougherty
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC
| | - Lauren T Moffatt
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC.,Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC
| | - Cynthia M Simbulan-Rosenthal
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC
| | - Jeffrey W Shupp
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC.,Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC.,The Burn Center, MedStar Washington Hospital Center, Washington, DC.,Department of Surgery, Georgetown University School of Medicine, Washington, DC
| | - Dean S Rosenthal
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC
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15
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TGF-β2 upregulates tyrosinase activity via Opsin3 in human skin melanocytes in vitro. J Invest Dermatol 2021; 141:2679-2689. [PMID: 34029574 DOI: 10.1016/j.jid.2021.01.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 01/12/2021] [Accepted: 01/25/2021] [Indexed: 01/17/2023]
Abstract
Opsin3 (OPN3) is a potential key regulator of human melanocyte melanogenesis. How OPN3-mediated regulation of melanocyte melanogenesis is triggered is largely unclear. Transforming growth factor-β (TGF-β) can inhibit the growth of human melanocytes and reduce melanin synthesis in melanocytes. However, whether TGF-β2 can modulate pigmentation in normal human primary melanocytes via OPN3 is entirely unknown. Here, we constructed a co-culture model with human epidermal melanocytes and keratinocytes. Higher OPN3, tyrosinase (TYR), tyrosinase-related protein (TRP)-1, and TRP-2 expression and higher tyrosinase activity were detected in co-cultured cells than in mono-cultured cells. Moreover, elevated levels of TGF-β2 were detected in the culture supernatant of melanocytes co-cultured with keratinocytes. OPN3 inhibition in melanocytes decreased TYR, TRP-1, and TRP-2 expression and downregulated tyrosinase activity. Our findings indicate that TGF-β2 upregulates TYR, TRP-1 and TRP-2 expression in human melanocytes via OPN3 and downstream calcium-dependent G protein-coupled signalling pathways to induce melanogenesis. Interestingly, treatment with the TGF-β2 receptor inhibitor LY2109761 (10 μM) did not inhibit TGF-β2-induced melanocyte melanogenesis via OPN3. Collectively, our data suggest that TGF-β2 upregulates tyrosinase activity via OPN3 through a TGF-β2R-independent and calcium-dependent G protein-coupled signalling pathway.
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16
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Ray A, Kunhiraman H, Perera RJ. The Paradoxical Behavior of microRNA-211 in Melanomas and Other Human Cancers. Front Oncol 2021; 10:628367. [PMID: 33628737 PMCID: PMC7897698 DOI: 10.3389/fonc.2020.628367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 12/21/2020] [Indexed: 01/27/2023] Open
Abstract
Cancer initiation, progression, and metastasis leverage many regulatory agents, such as signaling molecules, transcription factors, and regulatory RNA molecules. Among these, regulatory non-coding RNAs have emerged as molecules that control multiple cancer types and their pathologic properties. The human microRNA-211 (MIR211) is one such molecule, which affects several cancer types, including melanoma, glioblastoma, lung adenocarcinomas, breast, ovarian, prostate, and colorectal carcinoma. Previous studies suggested that in certain tumors MIR211 acts as a tumor suppressor while in others it behaves as an oncogenic regulator. Here we summarize the known molecular genetic mechanisms that regulate MIR211 gene expression and molecular pathways that are in turn controlled by MIR211 itself. We discuss how cellular and epigenetic contexts modulate the biological effects of MIR211, which exhibit pleiotropic effects. For example, up-regulation of MIR211 expression down-regulates Warburg effect in melanoma tumor cells associated with an inhibition of the growth of human melanoma cells in vitro, and yet these conditions robustly increase tumor growth in xenografted mice. Signaling through the DUSP6-ERK5 pathway is modulated by MIR211 in BRAFV600E driven melanoma tumors, and this function is involved in the resistance of tumor cells to the BRAF inhibitor, Vemurafenib. We discuss several alternate but testable models, involving stochastic cell-to-cell expression heterogeneity due to multiple equilibria involving feedback circuits, intracellular communication, and genetic variation at miRNA target sties, to reconcile the paradoxical effects of MIR211 on tumorigenesis. Understanding the precise role of this miRNA is crucial to understanding the genetic basis of melanoma as well as the other cancer types where this regulatory molecule has important influences. We hope this review will inspire novel directions in this field.
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Affiliation(s)
- Animesh Ray
- Riggs School of Applied Life Sciences, Keck Graduate Institute, Claremont, CA, United States
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, United States
| | - Haritha Kunhiraman
- Cancer & Blood Disorder Institute, Johns Hopkins All Children’s Hospital, South, St. Petersburg, FL, United States
| | - Ranjan J. Perera
- Cancer & Blood Disorder Institute, Johns Hopkins All Children’s Hospital, South, St. Petersburg, FL, United States
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, School of Medicine, Johns Hopkins University, Baltimore, MD, United States
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17
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Rivera HM, Muñoz EN, Osuna D, Florez M, Carvajal M, Gómez LA. Reciprocal Changes in miRNA Expression with Pigmentation and Decreased Proliferation Induced in Mouse B16F1 Melanoma Cells by L-Tyrosine and 5-Bromo-2'-Deoxyuridine. Int J Mol Sci 2021; 22:ijms22041591. [PMID: 33562431 PMCID: PMC7914888 DOI: 10.3390/ijms22041591] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/31/2020] [Accepted: 01/03/2021] [Indexed: 12/15/2022] Open
Abstract
Background: Many microRNAs have been identified as critical mediators in the progression of melanoma through its regulation of genes involved in different cellular processes such as melanogenesis, cell cycle control, and senescence. However, microRNAs’ concurrent participation in syngeneic mouse B16F1 melanoma cells simultaneously induced decreased proliferation and differential pigmentation by exposure to 5-Brd-2′-dU (5’Bromo-2-deoxyuridine) and L-Tyr (L-Tyrosine) respectively, is poorly understood. Aim: To evaluate changes in the expression of microRNAs and identify which miRNAs in-network may contribute to the functional bases of phenotypes of differential pigmentation and reduction of proliferation in B16F1 melanoma cells exposed to 5-Brd-2′-dU and L-Tyr. Methods: Small RNAseq evaluation of the expression profiles of miRNAs in B16F1 melanoma cells exposed to 5-Brd-2′-dU (2.5 μg/mL) and L-Tyr (5 mM), as well as the expression by qRT-PCR of some molecular targets related to melanogenesis, cell cycle, and senescence. By bioinformatic analysis, we constructed network models of regulation and co-expression of microRNAs. Results: We confirmed that stimulation or repression of melanogenesis with L-Tyr or 5-Brd-2′-dU, respectively, generated changes in melanin concentration, reduction in proliferation, and changes in expression of microRNAs 470-3p, 470-5p, 30d-5p, 129-5p, 148b-3p, 27b-3p, and 211-5p, which presented patterns of coordinated and reciprocal co-expression, related to changes in melanogenesis through their putative targets Mitf, Tyr and Tyrp1, and control of cell cycle and senescence: Cyclin D1, Cdk2, Cdk4, p21, and p27. Conclusions: These findings provide insights into the molecular biology of melanoma of the way miRNAs are coordinated and reciprocal expression that may operate in a network as molecular bases for understanding changes in pigmentation and decreased proliferation induced in B16F1 melanoma cells exposed to L-Tyr and 5-Brd-2′-dU.
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Affiliation(s)
- Hernán Mauricio Rivera
- Department of Medicine, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (H.M.R.); (E.N.M.)
- Molecular Physiology Group, Sub-Direction of Scientific and Technological Research, Direction of Public Health Research, National Institute of Health, Bogotá 111321, Colombia
| | - Esther Natalia Muñoz
- Department of Medicine, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (H.M.R.); (E.N.M.)
- Molecular Physiology Group, Sub-Direction of Scientific and Technological Research, Direction of Public Health Research, National Institute of Health, Bogotá 111321, Colombia
| | - Daniel Osuna
- Science Department, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (D.O.); (M.F.); (M.C.)
| | - Mauro Florez
- Science Department, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (D.O.); (M.F.); (M.C.)
| | - Michael Carvajal
- Science Department, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (D.O.); (M.F.); (M.C.)
| | - Luis Alberto Gómez
- Molecular Physiology Group, Sub-Direction of Scientific and Technological Research, Direction of Public Health Research, National Institute of Health, Bogotá 111321, Colombia
- Department of Physiological Sciences, Faculty of Medicine, Universidad Nacional de Colombia, Bogotá 111321, Colombia
- Correspondence:
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18
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Zhao Z, Wang K, Tan S. microRNA-211-mediated targeting of the INHBA-TGF-β axis suppresses prostate tumor formation and growth. Cancer Gene Ther 2020; 28:514-528. [PMID: 33223523 DOI: 10.1038/s41417-020-00237-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 09/01/2020] [Accepted: 09/22/2020] [Indexed: 12/22/2022]
Abstract
Prostate cancer (PCa) stem cells increase the sustainability of tumor growth, resulting in high relapse rates in patients with PCa. This goal of the present study was to elucidate the function of microRNA (miR)-211 in PCa stem cell activities. Based on the initial findings from the GSE26910 dataset, inhibin-β A (INHBA) was used for subsequent experiments, and miR-211 was then predicted as a candidate regulatory miR. Subsequently, INHBA and miR-211 were observed to be highly and poorly expressed in PCa tissues, respectively, and miR-211 negatively target INHBA. CD44+CD133+ cells were isolated, and both miR-211 and INHBA expression was altered in these cells to assess functional role of miR-211 and INHBA in PCa stem cells. Overexpression of miR-211 decreased expression of TGF-β1, TGF-β2, smad2, smad3, phosphorylated smad2 and smad3, and stem cell markers. miR-211 upregulation or INHBA knockdown resulted in reductions in the proliferation, invasion, colony-forming ability, sphere-forming ability, and stemness of PCa stem cells but enhanced their apoptosis in vitro. Furthermore, miR-211 upregulation or INHBA silencing decreased tumor growth and cell apoptosis in vivo. Taken together, these results indicate that upregulation of miR-211 has tumor-suppressive properties by inhibiting TGF-β pathway activation via INHBA in PCa stem cells.
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Affiliation(s)
- Zhifeng Zhao
- Department of Urology, Linyi People's Hospital of Shandong Province, 276000, Linyi, P. R. China
| | - Kai Wang
- Department of Urology, Linyi People's Hospital of Shandong Province, 276000, Linyi, P. R. China.
| | - Shanfeng Tan
- Department of Urology, Linyi People's Hospital of Shandong Province, 276000, Linyi, P. R. China.
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19
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Li L. The Role of MicroRNAs in Vitiligo: Regulators and Therapeutic Targets. Ann Dermatol 2020; 32:441-451. [PMID: 33911786 PMCID: PMC7875238 DOI: 10.5021/ad.2020.32.6.441] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 05/12/2020] [Accepted: 05/15/2020] [Indexed: 01/06/2023] Open
Abstract
Vitiligo is an acquired skin disorder clinically characterized by the progressive appearance of white maculae due to a loss of functioning epidermal melanocytes. Studies have shown that microRNAs (miRNAs) modulate cellular differentiation, proliferation and apoptosis, including immune cell and melanocyte development and functions. The role of miRNAs in the pathogenesis of several immune-related diseases has been explored. Novel approaches to target miRNAs have recently emerged allowing modulation of miRNAs levels in diverse pathological processes, thus making them promising targets for molecular-based diagnostics and therapy. Here, we report the present status of research on miRNAs expression and functional alterations in vitiligo, in order to more fully understand the role of these molecules in vitiligo pathology.
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Affiliation(s)
- Lili Li
- Department of Dermatology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
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20
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Lee B, Sahoo A, Sawada J, Marchica J, Sahoo S, Layng FIAL, Finlay D, Mazar J, Joshi P, Komatsu M, Vuori K, de Jong PR, Ray A, Perera RJ. MicroRNA-211 Modulates the DUSP6-ERK5 Signaling Axis to Promote BRAF V600E-Driven Melanoma Growth In Vivo and BRAF/MEK Inhibitor Resistance. J Invest Dermatol 2020; 141:385-394. [PMID: 32888955 DOI: 10.1016/j.jid.2020.06.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 06/17/2020] [Accepted: 06/22/2020] [Indexed: 12/27/2022]
Abstract
MicroRNAs (miRs) are important posttranscriptional regulators of cell fate in both normal and disease states. miR-211 has previously been shown to be a direct regulator of metabolism in BRAFV600E-mutant melanoma cells in vitro. Here, we report that miR-211 expression promotes the aggressive growth of BRAFV600E-mutant melanoma xenografts in vivo. miR-211 promoted proliferation through the posttranscriptional activation of extracellular signal-regulated kinase (ERK) 5 signaling, which has recently been implicated in the resistance to BRAF and MAPK/ERK kinase inhibitors. We therefore examined whether miR-211 similarly modulated melanoma resistance to the BRAF inhibitor vemurafenib and the MAPK/ERK kinase inhibitor cobimetinib. Consistent with this model, miR-211 expression increased melanoma cell resistance to both the inhibitors, and this resistance was associated with an increased ERK5 phosphorylation. miR-211 mediates these effects by directly inhibiting the expression of DUSP6, an ERK5 pathway-specific phosphatase and now shown to be an miR-211 target gene. These results dissect the role of the miR-211-DUSP6-ERK5 axis in melanoma tumor growth and suggest a mechanism for the development of drug-resistant tumors and a target for overcoming resistance.
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Affiliation(s)
- Bongyong Lee
- Department of Oncology, Sidney Kimmel Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA
| | - Anupama Sahoo
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA
| | - Junko Sawada
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA; Department of Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, USA
| | - John Marchica
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA
| | - Sanjay Sahoo
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA
| | - Fabiana I A L Layng
- Sanford Burnham Prebys Medical Discovery Institute, NCI-Designated Cancer Center, La Jolla, California, USA
| | - Darren Finlay
- Sanford Burnham Prebys Medical Discovery Institute, NCI-Designated Cancer Center, La Jolla, California, USA
| | - Joseph Mazar
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA
| | - Piyush Joshi
- Department of Oncology, Sidney Kimmel Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Masanobu Komatsu
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA; Department of Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, USA
| | - Kristiina Vuori
- Sanford Burnham Prebys Medical Discovery Institute, NCI-Designated Cancer Center, La Jolla, California, USA
| | - Petrus R de Jong
- Sanford Burnham Prebys Medical Discovery Institute, NCI-Designated Cancer Center, La Jolla, California, USA
| | - Animesh Ray
- Keck Graduate Institute, Claremont, California, USA; Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA
| | - Ranjan J Perera
- Department of Oncology, Sidney Kimmel Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA; Department of Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, USA; Sanford Burnham Prebys Medical Discovery Institute, NCI-Designated Cancer Center, La Jolla, California, USA.
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21
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Zeng B, Li K, Yang Z, Wang H, Wang C, Huang P, Pan Y. Isoimperatorin (ISO) reduces melanin content in keratinocytes via miR-3619/CSTB and miR-3619/CSTD axes. Biosci Biotechnol Biochem 2020; 84:1436-1443. [PMID: 32299303 DOI: 10.1080/09168451.2020.1751581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Melanin metabolism disorders may cause severe impacts on the psychological and social activities of patients. Different from the other two steps of melanin metabolism, namely synthesis and transport, little has been known about the mechanism of melanin degradation. Isoimperatorin (ISO) suppressed the activity of tyrosinase, an essential enzyme in melanin biosynthesis, hence, we investigated the effects and mechanism of ISO in melanin reduction. ISO stimulation significantly reduces the melanin contents and PMEL 17 protein levels; meanwhile, the activity and the protein levels of two critical lysosomal enzymes, Cathepsin B and Cathepsin D, can be significantly increased by ISO treatment. MiR-3619 inhibited the expression of CSTB and CSTD, therefore affecting ISO-induced degradation of melanin. In summary, ISO reduces the melanin content via miR-3619/CSTB and miR-3619/CSTD axes. ISO could be a potent skin-whitening agent, which needs further in vivo and clinical investigation.
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Affiliation(s)
- Bijun Zeng
- Department of Dermatology, the Second Affiliated Hospital, the Domestic First-class Discipline Construction Project of Chinese Medicine, Hunan University of Chinese Medicine , Changsha, Hunan, China
| | - Kai Li
- Department of Dermatology, the Second Affiliated Hospital, the Domestic First-class Discipline Construction Project of Chinese Medicine, Hunan University of Chinese Medicine , Changsha, Hunan, China
| | - Zhibo Yang
- Department of Dermatology, the Second Affiliated Hospital, the Domestic First-class Discipline Construction Project of Chinese Medicine, Hunan University of Chinese Medicine , Changsha, Hunan, China
| | - Haizhen Wang
- Department of Dermatology, the Second Affiliated Hospital, the Domestic First-class Discipline Construction Project of Chinese Medicine, Hunan University of Chinese Medicine , Changsha, Hunan, China
| | - Chang Wang
- Department of Dermatology, the Second Affiliated Hospital, the Domestic First-class Discipline Construction Project of Chinese Medicine, Hunan University of Chinese Medicine , Changsha, Hunan, China
| | - Pan Huang
- Department of Dermatology, the Second Affiliated Hospital, the Domestic First-class Discipline Construction Project of Chinese Medicine, Hunan University of Chinese Medicine , Changsha, Hunan, China
| | - Yi Pan
- Department of Dermatology, the Second Affiliated Hospital, the Domestic First-class Discipline Construction Project of Chinese Medicine, Hunan University of Chinese Medicine , Changsha, Hunan, China
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22
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Su M, Miao F, Jiang S, Shi Y, Luo L, He X, Wan J, Xu S, Lei TC. Role of the p53‑TRPM1/miR‑211‑MMP9 axis in UVB‑induced human melanocyte migration and its potential in repigmentation. Int J Mol Med 2020; 45:1017-1026. [PMID: 31985026 PMCID: PMC7053874 DOI: 10.3892/ijmm.2020.4478] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 12/16/2019] [Indexed: 12/16/2022] Open
Abstract
Clinical studies have proven that ultraviolet B (UVB) based phototherapy can induce perifollicular and marginal repigmentation patterns in the skin of vitiligo patients. It is, however, difficult to conceive how melanocytes can easily exit from their tightly interconnected epidermal microenvironment to re‑enter a different location in the skin to establish a new network with neighboring keratinocytes. While it is known that matrix metalloprotease 9 (MMP9) is involved in the degradation of the extracellular matrix in physiological or pathological processes, little is known about whether MMP9 affects melanocyte migration in vitiligo repigmentation. To investigate the effects of the p53‑ transient receptor potential cation channel subfamily M member 1 (TRPM1)/microRNA (miR/miRNA)‑211‑MMP9 axis to regulate melanocyte migration following exposure to UVB, the expression profile of MMP9 in cultured human melanocytes transfected with or without the miR‑211‑mimic and p53‑GFP lentiviral vector, respectively were determined. Quantitative polymerase chain reaction and western blotting were used to examine p53, TRPM1 and MMP9 mRNA and protein levels in UVB‑exposed and unexposed cells. The capacity of melanocytes to migrate on collagen IV substrate was estimated using a Transwell migration assay. Interestingly, the upregulation of p53 and MMP9 at the mRNA and protein levels was evident in melanocytes treated with single or repeat exposures to UVB, whereas levels of TRPM1 and miR‑211 were significantly suppressed in UVB‑exposed melanocytes compared with the UVB‑unexposed control cells. These results indicate that the p53‑TRPM1/miR‑211‑MMP9 axis is significantly activated in melanocytes exposed to UVB. Notably, the ability of melanocyte migration was altered by the overexpression of p53 using a lentiviral vector and by the upregulation of miR‑211 using an miRNA mimic. That altered migration could be neutralized by co‑treatment with GM6001 (a broad‑spectrum MMP inhibitor). Overall, these results show that the MMP9‑mediated migration of melanocytes is regulated by a novel mechanism driven by the p53‑TRPM1/miR‑211‑MMP9 axis. Activation of the p53‑TRPM1/miR‑211‑MMP9 axis potentially represents an attractive therapeutic target to improve repigmentation outcomes in vitiligo patients.
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Affiliation(s)
- Mengyun Su
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Fang Miao
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Shan Jiang
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Ying Shi
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Longfei Luo
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xiaolei He
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Jing Wan
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Shizheng Xu
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Tie-Chi Lei
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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23
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Naso F, Intartaglia D, Falanga D, Soldati C, Polishchuk E, Giamundo G, Tiberi P, Marrocco E, Scudieri P, Di Malta C, Trapani I, Nusco E, Salierno FG, Surace EM, Galietta LJ, Banfi S, Auricchio A, Ballabio A, Medina DL, Conte I. Light-responsive microRNA miR-211 targets Ezrin to modulate lysosomal biogenesis and retinal cell clearance. EMBO J 2020; 39:e102468. [PMID: 32154600 DOI: 10.15252/embj.2019102468] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 02/03/2020] [Accepted: 02/05/2020] [Indexed: 12/16/2022] Open
Abstract
Vertebrate vision relies on the daily phagocytosis and lysosomal degradation of photoreceptor outer segments (POS) within the retinal pigment epithelium (RPE). However, how these events are controlled by light is largely unknown. Here, we show that the light-responsive miR-211 controls lysosomal biogenesis at the beginning of light-dark transitions in the RPE by targeting Ezrin, a cytoskeleton-associated protein essential for the regulation of calcium homeostasis. miR-211-mediated down-regulation of Ezrin leads to Ca2+ influx resulting in the activation of calcineurin, which in turn activates TFEB, the master regulator of lysosomal biogenesis. Light-mediated induction of lysosomal biogenesis and function is impaired in the RPE from miR-211-/- mice that show severely compromised vision. Pharmacological restoration of lysosomal biogenesis through Ezrin inhibition rescued the miR-211-/- phenotype, pointing to a new therapeutic target to counteract retinal degeneration associated with lysosomal dysfunction.
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Affiliation(s)
- Federica Naso
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy
| | | | - Danila Falanga
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy
| | - Chiara Soldati
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy
| | - Elena Polishchuk
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy
| | - Giuliana Giamundo
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy
| | - Paola Tiberi
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy
| | - Elena Marrocco
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy
| | - Paolo Scudieri
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy
| | - Chiara Di Malta
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy
| | - Ivana Trapani
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy
| | - Edoardo Nusco
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy
| | | | - Enrico Maria Surace
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy.,Department of Translational Medicine, University of Naples Federico II, Naples, Italy
| | - Luis Jv Galietta
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy.,Department of Translational Medicine, University of Naples Federico II, Naples, Italy
| | - Sandro Banfi
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy.,Medical Genetics, Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli", Naples, Italy
| | - Alberto Auricchio
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy.,Department of Translational Medicine, University of Naples Federico II, Naples, Italy
| | - Andrea Ballabio
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy.,Department of Translational Medicine, University of Naples Federico II, Naples, Italy.,Jan and Dan Duncan Neurological Research Institute, Texas Children Hospital, Houston, TX, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Diego Luis Medina
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy
| | - Ivan Conte
- Telethon Institute of Genetics and Medicine, Pozzuoli (Naples), Italy.,Department of Biology, University of Naples Federico II, Naples, Italy
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24
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Yan S, Shi J, Sun D, Lyu L. Current insight into the roles of microRNA in vitiligo. Mol Biol Rep 2020; 47:3211-3219. [PMID: 32086720 DOI: 10.1007/s11033-020-05336-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 02/18/2020] [Indexed: 12/11/2022]
Abstract
Vitiligo is a common chronic depigmented skin disease characterized by melanocyte loss or dysfunction in the lesion. The pathogenesis of vitiligo has not been fully clarified. Most studies have suggested that the occurrence and progression of vitiligo are due to multiple factors and gene interactions in which noncoding RNAs contribute to an individual's susceptibility to vitiligo. Noncoding RNAs, including microRNAs (miRNAs), are a hot topic in posttranscriptional regulatory mechanism research. miRNAs are noncoding RNAs with a length of approximately 22 nucleotides and play a negative regulatory role by binding to the 3'-UTR or 5'-UTR of the target mRNA to inhibit translation or initiate mRNA degradation. Previous studies have screened the differential expression profiles of miRNAs in the skin lesions, melanocytes, peripheral blood mononuclear cells (PBMCs) and sera of patients and mouse models with vitiligo. Moreover, several studies have focused on miRNA-25, miRNA-155 and other miRNAs involved in melanin metabolism, oxidative stress, and melanocyte proliferation and apoptosis. These miRNAs and regulatory processes further illuminate the pathogenesis of vitiligo and provide hope for the application of small molecules in the treatment of vitiligo. In this review, we summarize miRNA expression profiles in different tissues of vitiligo patients and the mechanisms by which key miRNAs mediate vitiligo development.
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Affiliation(s)
- Shili Yan
- Science and Technology Achievement Incubation Center, Kunming Medical University, 1168 West Chunrong Road, Yuhua Avenue, Chenggong District, Kunming, 650500, Yunnan, China
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jingpei Shi
- Science and Technology Achievement Incubation Center, Kunming Medical University, 1168 West Chunrong Road, Yuhua Avenue, Chenggong District, Kunming, 650500, Yunnan, China
- School of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Dongjie Sun
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Lechun Lyu
- Science and Technology Achievement Incubation Center, Kunming Medical University, 1168 West Chunrong Road, Yuhua Avenue, Chenggong District, Kunming, 650500, Yunnan, China.
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25
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NRF1 and NRF2 mRNA and Protein Expression Decrease Early during Melanoma Carcinogenesis: An Insight into Survival and MicroRNAs. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2647068. [PMID: 31687076 PMCID: PMC6794976 DOI: 10.1155/2019/2647068] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 06/07/2019] [Accepted: 06/25/2019] [Indexed: 02/06/2023]
Abstract
The prognostic significance of the major redox regulator nuclear factor erythroid-2-related factor (NRF2) is recognized in many cancers, but the role of NRF1 is not generally well understood in cancer. Our aim was to investigate these redox transcription factors in conjunction with redox-related microRNAs in naevi and melanoma. We characterized the immunohistochemical expression of NRF1 and NRF2 in 99 naevi, 88 primary skin melanomas, and 67 lymph node metastases. In addition, NRF1 and NRF2 mRNA and miR-23B, miR-93, miR-144, miR-212, miR-340, miR-383, and miR-510 levels were analysed with real-time qPCR from 54 paraffin-embedded naevi and melanoma samples. The immunohistochemical expression of nuclear NRF1 decreased from benign to dysplastic naevi (p < 0.001) and to primary melanoma (p < 0.001) and from primary melanoma to metastatic lesions (p = 0.012). Also, NRF1 mRNA levels decreased from benign naevi to dysplastic naevi (p = 0.034). Similarly, immunopositivity of NRF2 decreased from benign to dysplastic naevi (p = 0.02) and to primary lesions (p = 0.018). NRF2 mRNA decreased from benign to dysplastic naevi and primary melanomas (p = 0.012). Analysis from the Gene Expression Omnibus datasets supported the mRNA findings. High nuclear immunohistochemical NRF1 expression in pigment cells associated with a worse survival (p = 0.048) in patients with N0 disease at the time of diagnosis, and high nuclear NRF2 expression in pigment cells associated with a worse survival (p = 0.033) in patients with M0 disease at the time of diagnosis. In multivariate analysis, neither of these variables exceeded the prognostic power of Breslow. The levels of miR-144 and miR-212 associated positively with ulceration (p = 0.012 and p = 0.027, respectively) while miR-510 levels associated positively with lymph node metastases at the time of diagnosis (p = 0.004). Furthermore, the miRNAs correlated negatively with the immunohistochemical expression of NRF1 and NRF2 but positively with their respective mRNA. Together, this data sheds new light about NFE2L family factors in pigment tumors and suggests that these factors are worth for further explorations.
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26
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Qiu W, Chuong CM, Lei M. Regulation of melanocyte stem cells in the pigmentation of skin and its appendages: Biological patterning and therapeutic potentials. Exp Dermatol 2019; 28:395-405. [PMID: 30537004 DOI: 10.1111/exd.13856] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/27/2018] [Accepted: 12/05/2018] [Indexed: 12/13/2022]
Abstract
Skin evolves essential appendages and indispensable types of cells that synergistically insulate the body from environmental insults. Residing in the specific regions in the skin such as epidermis, dermis and hair follicle, melanocytes perform an array of vital functions including defending the ultraviolet radiation and diversifying animal appearance. As one of the adult stem cells, melanocyte stem cells in the hair follicle bulge niche can proliferate, differentiate and keep quiescence to control and coordinate tissue homeostasis, repair and regeneration. In synchrony with hair follicle stem cells, melanocyte stem cells in the hair follicles undergo cyclic activation, degeneration and resting phases, to pigment the hairs and to preserve the stem cells. Disorder of melanocytes results in severe skin problems such as canities, vitiligo and even melanoma. Here, we compare and summarize recent discoveries about melanocyte in the skin, particularly in the hair follicle. A better understanding of the physiological and pathological regulation of melanocyte and melanocyte stem cell behaviours will help to guide the clinical applications in regenerative medicine.
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Affiliation(s)
- Weiming Qiu
- Department of Dermatology, Wuhan General Hospital of Chinese People's Liberation Army, Wuhan, China
| | - Cheng-Ming Chuong
- Department of Pathology, University of Southern California, Los Angeles, California.,Integrative Stem Cell Center, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Mingxing Lei
- Integrative Stem Cell Center, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Institute of New Drug Development, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan
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27
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Sahoo A, Sahoo SK, Joshi P, Lee B, Perera RJ. MicroRNA-211 Loss Promotes Metabolic Vulnerability and BRAF Inhibitor Sensitivity in Melanoma. J Invest Dermatol 2019; 139:167-176. [PMID: 30076926 PMCID: PMC6309654 DOI: 10.1016/j.jid.2018.06.189] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 06/07/2018] [Accepted: 06/26/2018] [Indexed: 12/15/2022]
Abstract
The clinical management of malignant melanoma remains a challenge because these tumors are intrinsically aggressive and prone to therapeutic resistance. MicroRNA (miR)-211 is an emerging melanoma oncogene. Melanoma metabolism adapts to promote survival, including in response to BRAFV600E inhibition, but how miR-211 participates in this process is unknown. Here, we generated miR-211 loss-of-function cell lines using CRISPR/Cas9 technology and show that miR-211 loss slowed growth and invasion in vitro, inhibited phosphoinositol-3-kinase signaling, and inhibited melanoma growth in vivo. miR-211 deficiency rendered melanoma cells metabolically vulnerable by attenuating mitochondrial respiration and tricarboxylic acid cycling. miR-211 was up-regulated by the BRAF inhibitor vemurafenib and in vemurafenib-resistant melanoma cells, with miR-211 loss rendering them more drug sensitive. miR-211 loss represents a "two-pronged" anticancer strategy by inhibiting both critical growth-promoting cell signaling pathways and rendering cells metabolically vulnerable, making it an extremely attractive and specific candidate combinatorial therapeutic target in melanoma.
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Affiliation(s)
- Anupama Sahoo
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA
| | - Sanjaya K Sahoo
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA
| | - Piyush Joshi
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA; Johns Hopkins School of Medicine, Department of Oncology, St. Petersburg, Florida, USA
| | - Bongyong Lee
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA; Johns Hopkins School of Medicine, Department of Oncology, St. Petersburg, Florida, USA
| | - Ranjan J Perera
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA; Johns Hopkins School of Medicine, Department of Oncology, St. Petersburg, Florida, USA.
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28
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Serre C, Busuttil V, Botto JM. Intrinsic and extrinsic regulation of human skin melanogenesis and pigmentation. Int J Cosmet Sci 2018; 40:328-347. [PMID: 29752874 DOI: 10.1111/ics.12466] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 05/04/2018] [Indexed: 12/11/2022]
Abstract
In human skin, melanogenesis is a tightly regulated process. Indeed, several extracellular signals are transduced via dedicated signalling pathways and mostly converge to MITF, a transcription factor integrating upstream signalling and regulating downstream genes involved in the various inherent mechanisms modulating melanogenesis. The synthesis of melanin pigments occurs in melanocytes inside melanosomes where melanogenic enzymes (tyrosinase and related proteins) are addressed with the help of specific protein complexes. The melanosomes loaded with melanin are then transferred to keratinocytes. A more elaborate level of melanogenesis regulation comes into play via the action of non-coding RNAs (microRNAs, lncRNAs). Besides this canonical regulation, melanogenesis can also be modulated by other non-specific intrinsic pathways (hormonal environment, inflammation) and by extrinsic factors (solar irradiation such as ultraviolet irradiation, environmental pollution). We developed a bioinformatic interaction network gathering the multiple aspects of melanogenesis and skin pigmentation as a resource to better understand and study skin pigmentation biology.
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Affiliation(s)
- C Serre
- Global Skin Research Center, Ashland, 655, route du Pin Montard, Sophia Antipolis, 06904, France
| | - V Busuttil
- Global Skin Research Center, Ashland, 655, route du Pin Montard, Sophia Antipolis, 06904, France
| | - J-M Botto
- Global Skin Research Center, Ashland, 655, route du Pin Montard, Sophia Antipolis, 06904, France
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29
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Weiner AMJ. MicroRNAs and the neural crest: From induction to differentiation. Mech Dev 2018; 154:98-106. [PMID: 29859253 DOI: 10.1016/j.mod.2018.05.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/18/2018] [Accepted: 05/28/2018] [Indexed: 01/06/2023]
Abstract
MicroRNAs are small noncoding RNAs that can control gene expression by base pairing to partially complementary mRNAs. Regulation by microRNAs plays essential roles in diverse biological processes such as neural crest formation during embryonic development. The neural crest is a multipotent cell population that develops from the dorsal neural fold of vertebrate embryos in order to migrate extensively and differentiate into a variety of tissues. Gene regulatory networks that coordinate neural crest cell specification and differentiation have been considerably studied so far. Although it is known that microRNAs play important roles in neural crest development, posttranscriptional regulation by microRNAs has not been deeply characterized yet. This review is focused on the microRNAs identified so far in order to regulate gene expression of neural crest cells during vertebrate development.
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Affiliation(s)
- Andrea M J Weiner
- Instituto de Biología Molecular y Celular de Rosario (IBR), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario (UNR), Ocampo y Esmeralda, S2000EZP Rosario, Argentina.
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30
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Vitiello M, Tuccoli A, D'Aurizio R, Sarti S, Giannecchini L, Lubrano S, Marranci A, Evangelista M, Peppicelli S, Ippolito C, Barravecchia I, Guzzolino E, Montagnani V, Gowen M, Mercoledi E, Mercatanti A, Comelli L, Gurrieri S, Wu LW, Ope O, Flaherty K, Boland GM, Hammond MR, Kwong L, Chiariello M, Stecca B, Zhang G, Salvetti A, Angeloni D, Pitto L, Calorini L, Chiorino G, Pellegrini M, Herlyn M, Osman I, Poliseno L. Context-dependent miR-204 and miR-211 affect the biological properties of amelanotic and melanotic melanoma cells. Oncotarget 2018; 8:25395-25417. [PMID: 28445987 PMCID: PMC5421939 DOI: 10.18632/oncotarget.15915] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 02/06/2017] [Indexed: 12/13/2022] Open
Abstract
Despite increasing amounts of experimental evidence depicting the involvement of non-coding RNAs in cancer, the study of BRAFV600E-regulated genes has thus far focused mainly on protein-coding ones. Here, we identify and study the microRNAs that BRAFV600E regulates through the ERK pathway. By performing small RNA sequencing on A375 melanoma cells and a vemurafenib-resistant clone that was taken as negative control, we discover miR-204 and miR-211 as the miRNAs most induced by vemurafenib. We also demonstrate that, although belonging to the same family, these two miRNAs have distinctive features. miR-204 is under the control of STAT3 and its expression is induced in amelanotic melanoma cells, where it acts as an effector of vemurafenib's anti-motility activity by targeting AP1S2. Conversely, miR-211, a known transcriptional target of MITF, is induced in melanotic melanoma cells, where it targets EDEM1 and consequently impairs the degradation of TYROSINASE (TYR) through the ER-associated degradation (ERAD) pathway. In doing so, miR-211 serves as an effector of vemurafenib's pro-pigmentation activity. We also show that such an increase in pigmentation in turn represents an adaptive response that needs to be overcome using appropriate inhibitors in order to increase the efficacy of vemurafenib. In summary, we unveil the distinct and context-dependent activities exerted by miR-204 family members in melanoma cells. Our work challenges the widely accepted “same miRNA family = same function” rule and provides a rationale for a novel treatment strategy for melanotic melanomas that is based on the combination of ERK pathway inhibitors with pigmentation inhibitors.
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Affiliation(s)
- Marianna Vitiello
- Oncogenomics Unit, Core Research Laboratory, Istituto Toscano Tumori (ITT), AOUP, Pisa, Italy.,Institute of Clinical Physiology (IFC), CNR, Pisa, Italy
| | - Andrea Tuccoli
- Oncogenomics Unit, Core Research Laboratory, Istituto Toscano Tumori (ITT), AOUP, Pisa, Italy
| | - Romina D'Aurizio
- Laboratory of Integrative Systems Medicine (LISM), Institute of Informatics and Telematics (IIT), CNR, Pisa, Italy
| | - Samanta Sarti
- Oncogenomics Unit, Core Research Laboratory, Istituto Toscano Tumori (ITT), AOUP, Pisa, Italy.,University of Siena, Italy
| | - Laura Giannecchini
- Oncogenomics Unit, Core Research Laboratory, Istituto Toscano Tumori (ITT), AOUP, Pisa, Italy
| | - Simone Lubrano
- Oncogenomics Unit, Core Research Laboratory, Istituto Toscano Tumori (ITT), AOUP, Pisa, Italy.,University of Siena, Italy
| | - Andrea Marranci
- Oncogenomics Unit, Core Research Laboratory, Istituto Toscano Tumori (ITT), AOUP, Pisa, Italy.,University of Siena, Italy
| | | | - Silvia Peppicelli
- Section of Experimental Pathology and Oncology, Department of Experimental and Clinical Biomedical Sciences, University of Firenze, Italy
| | - Chiara Ippolito
- Unit of Histology, Department of Clinical and Experimental Medicine, University of Pisa, Italy
| | | | | | - Valentina Montagnani
- Tumor Cell Biology Unit, Core Research Laboratory, Istituto Toscano Tumori (ITT), AOUC, Firenze, Italy
| | | | - Elisa Mercoledi
- Oncogenomics Unit, Core Research Laboratory, Istituto Toscano Tumori (ITT), AOUP, Pisa, Italy
| | | | - Laura Comelli
- Institute of Clinical Physiology (IFC), CNR, Pisa, Italy
| | - Salvatore Gurrieri
- Oncogenomics Unit, Core Research Laboratory, Istituto Toscano Tumori (ITT), AOUP, Pisa, Italy
| | | | | | | | | | | | | | - Mario Chiariello
- Institute of Clinical Physiology (IFC), CNR, Pisa, Italy.,Signal Transduction Unit, Core Research Laboratory, Istituto Toscano Tumori (ITT), AOUS, Siena, Italy
| | - Barbara Stecca
- Tumor Cell Biology Unit, Core Research Laboratory, Istituto Toscano Tumori (ITT), AOUC, Firenze, Italy
| | - Gao Zhang
- The Wistar Institute, Philadelphia, PA, USA
| | - Alessandra Salvetti
- Unit of Experimental Biology and Genetics, Department of Clinical and Experimental Medicine, University of Pisa, Italy
| | | | - Letizia Pitto
- Institute of Clinical Physiology (IFC), CNR, Pisa, Italy
| | - Lido Calorini
- Section of Experimental Pathology and Oncology, Department of Experimental and Clinical Biomedical Sciences, University of Firenze, Italy
| | | | - Marco Pellegrini
- Laboratory of Integrative Systems Medicine (LISM), Institute of Informatics and Telematics (IIT), CNR, Pisa, Italy
| | | | | | - Laura Poliseno
- Oncogenomics Unit, Core Research Laboratory, Istituto Toscano Tumori (ITT), AOUP, Pisa, Italy.,Institute of Clinical Physiology (IFC), CNR, Pisa, Italy
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31
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Barbato S, Marrocco E, Intartaglia D, Pizzo M, Asteriti S, Naso F, Falanga D, Bhat RS, Meola N, Carissimo A, Karali M, Prosser HM, Cangiano L, Surace EM, Banfi S, Conte I. MiR-211 is essential for adult cone photoreceptor maintenance and visual function. Sci Rep 2017; 7:17004. [PMID: 29209045 PMCID: PMC5717140 DOI: 10.1038/s41598-017-17331-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 11/16/2017] [Indexed: 12/29/2022] Open
Abstract
MicroRNAs (miRNAs) are key post-transcriptional regulators of gene expression that play an important role in the control of fundamental biological processes in both physiological and pathological conditions. Their function in retinal cells is just beginning to be elucidated, and a few have been found to play a role in photoreceptor maintenance and function. MiR-211 is one of the most abundant miRNAs in the developing and adult eye. However, its role in controlling vertebrate visual system development, maintenance and function so far remain incompletely unexplored. Here, by targeted inactivation in a mouse model, we identify a critical role of miR-211 in cone photoreceptor function and survival. MiR-211 knockout (-/-) mice exhibited a progressive cone dystrophy accompanied by significant alterations in visual function. Transcriptome analysis of the retina from miR-211-/- mice during cone degeneration revealed significant alteration of pathways related to cell metabolism. Collectively, this study highlights for the first time the impact of miR-211 function in the retina and significantly contributes to unravelling the role of specific miRNAs in cone photoreceptor function and survival.
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Affiliation(s)
- Sara Barbato
- Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, Pozzuoli (Naples), 80078, Italy
| | - Elena Marrocco
- Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, Pozzuoli (Naples), 80078, Italy
| | - Daniela Intartaglia
- Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, Pozzuoli (Naples), 80078, Italy
| | - Mariateresa Pizzo
- Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, Pozzuoli (Naples), 80078, Italy
| | - Sabrina Asteriti
- Department of Translational Research, University of Pisa, Via San Zeno 31, 56123, Pisa, Italy
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, CB2 3EG, United Kingdom
| | - Federica Naso
- Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, Pozzuoli (Naples), 80078, Italy
| | - Danila Falanga
- Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, Pozzuoli (Naples), 80078, Italy
| | - Rajeshwari S Bhat
- Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, Pozzuoli (Naples), 80078, Italy
| | - Nicola Meola
- Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, Pozzuoli (Naples), 80078, Italy
- Aarhus University, Department of Molecular Biology and Genetics, C.F. Møllers Allé 3 building 1130, 422-8000, Aarhus C, Denmark
| | - Annamaria Carissimo
- Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, Pozzuoli (Naples), 80078, Italy
| | - Marianthi Karali
- Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, Pozzuoli (Naples), 80078, Italy
- Medical Genetics, Department of Biochemistry, Biophysics and General Pathology, University "Luigi Vanvitelli", via Luigi De Crecchio 7, 80138, Naples, Italy
| | - Haydn M Prosser
- The Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, United Kingdom
| | - Lorenzo Cangiano
- Department of Translational Research, University of Pisa, Via San Zeno 31, 56123, Pisa, Italy
| | - Enrico Maria Surace
- Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, Pozzuoli (Naples), 80078, Italy
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy
| | - Sandro Banfi
- Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, Pozzuoli (Naples), 80078, Italy.
- Medical Genetics, Department of Biochemistry, Biophysics and General Pathology, University "Luigi Vanvitelli", via Luigi De Crecchio 7, 80138, Naples, Italy.
| | - Ivan Conte
- Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, Pozzuoli (Naples), 80078, Italy.
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Abstract
The advent of RNA interference (RNAi) technology has profoundly impacted molecular biology research and medicine but has also advanced the field of skin care. Both effector molecules of RNAi, short-interfering RNA molecules and microRNAs (miRNAs), have been explored for their relative impact and utility for treating a variety of skin conditions. These post-transcriptional RNA regulatory molecules down-modulate protein expression through targeting of the 3' untranslated regions of messenger RNAs, leading to their degradation or repression through sequestration. As researchers hunt for genetic linkages to skin diseases, miRNA regulators have emerged as key players in the biology of keratinocytes, fibroblasts, melanocytes, and other cells of the skin. Herein, we attempt to coalesce the current efforts to combat various skin disorders and diseases through the development of miRNA-based technologies.
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Affiliation(s)
- Paul Lawrence
- Biocogent, LLC, 25 Health Sciences Drive, Stony Brook, NY 11790 USA
| | - Joseph Ceccoli
- Biocogent, LLC, 25 Health Sciences Drive, Stony Brook, NY 11790 USA
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Lunavat TR, Cheng L, Einarsdottir BO, Olofsson Bagge R, Veppil Muralidharan S, Sharples RA, Lässer C, Gho YS, Hill AF, Nilsson JA, Lötvall J. BRAF V600 inhibition alters the microRNA cargo in the vesicular secretome of malignant melanoma cells. Proc Natl Acad Sci U S A 2017; 114:E5930-E5939. [PMID: 28684402 PMCID: PMC5530690 DOI: 10.1073/pnas.1705206114] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The BRAF inhibitors vemurafenib and dabrafenib can be used to treat patients with metastatic melanomas harboring BRAFV600 mutations. Initial antitumoral responses are often seen, but drug-resistant clones with reactivation of the MEK-ERK pathway soon appear. Recently, the secretome of tumor-derived extracellular vesicles (EVs) has been ascribed important functions in cancers. To elucidate the possible functions of EVs in BRAF-mutant melanoma, we determined the RNA content of the EVs, including apoptotic bodies, microvesicles, and exosomes, released from such cancer cells after vemurafenib treatment. We found that vemurafenib significantly increased the total RNA and protein content of the released EVs and caused significant changes in the RNA profiles. RNA sequencing and quantitative PCR show that cells and EVs from vemurafenib-treated cell cultures and tumor tissues harvested from cell-derived and patient-derived xenografts harbor unique miRNAs, especially increased expression of miR-211-5p. Mechanistically, the expression of miR-211-5p as a result of BRAF inhibition was induced by increased expression of MITF that regulates the TRPM1 gene resulting in activation of the survival pathway. In addition, transfection of miR-211 in melanoma cells reduced the sensitivity to vemurafenib treatment, whereas miR-211-5p inhibition in a vemurafenib resistant cell line affected the proliferation negatively. Taken together, our results show that vemurafenib treatment induces miR-211-5p up-regulation in melanoma cells both in vitro and in vivo, as well as in subsets of EVs, suggesting that EVs may provide a tool to understand malignant melanoma progression.
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Affiliation(s)
- Taral R Lunavat
- Krefting Research Center, Department of Internal Medicine and Clinical Nutrition, University of Gothenburg, Gothenburg 405 30, Sweden
| | - Lesley Cheng
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086, Australia
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Berglind O Einarsdottir
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska University Hospital, Gothenburg 413 45, Sweden
| | - Roger Olofsson Bagge
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska University Hospital, Gothenburg 413 45, Sweden
| | - Somsundar Veppil Muralidharan
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska University Hospital, Gothenburg 413 45, Sweden
| | - Robyn A Sharples
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086, Australia
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Cecilia Lässer
- Krefting Research Center, Department of Internal Medicine and Clinical Nutrition, University of Gothenburg, Gothenburg 405 30, Sweden
| | - Yong Song Gho
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongbuk, 790-784, Republic of Korea
| | - Andrew F Hill
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086, Australia
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Jonas A Nilsson
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska University Hospital, Gothenburg 413 45, Sweden
| | - Jan Lötvall
- Krefting Research Center, Department of Internal Medicine and Clinical Nutrition, University of Gothenburg, Gothenburg 405 30, Sweden;
- Codiak BioSciences, Cambridge, MA 02139
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34
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Sahoo A, Lee B, Boniface K, Seneschal J, Sahoo SK, Seki T, Wang C, Das S, Han X, Steppie M, Seal S, Taieb A, Perera RJ. MicroRNA-211 Regulates Oxidative Phosphorylation and Energy Metabolism in Human Vitiligo. J Invest Dermatol 2017; 137:1965-1974. [PMID: 28502800 DOI: 10.1016/j.jid.2017.04.025] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 04/19/2017] [Accepted: 04/27/2017] [Indexed: 01/02/2023]
Abstract
Vitiligo is a common chronic skin disorder characterized by loss of epidermal melanocytes and progressive depigmentation. Vitiligo has complex immune, genetic, environmental, and biochemical causes, but the exact molecular mechanisms of vitiligo development and progression, particularly those related to metabolic control, are poorly understood. In this study we characterized the human vitiligo cell line PIG3V and the normal human melanocyte line HEM-l by RNA sequencing, targeted metabolomics, and shotgun lipidomics. Melanocyte-enriched microRNA-211, a known metabolic switch in nonpigmented melanoma cells, was severely down-regulated in vitiligo cell line PIG3V and skin biopsy samples from vitiligo patients, whereas its predicted targets PPARGC1A, RRM2, and TAOK1 were reciprocally up-regulated. microRNA-211 binds to PGC1-α 3' untranslated region locus and represses it. Although mitochondrial numbers were constant, mitochondrial complexes I, II, and IV and respiratory responses were defective in vitiligo cells. Nanoparticle-coated microRNA-211 partially augmented the oxygen consumption rate in PIG3V cells. The lower oxygen consumption rate, changes in lipid and metabolite profiles, and increased reactive oxygen species production observed in vitiligo cells appear to be partly due to abnormal regulation of microRNA-211 and its target genes. These genes represent potential biomarkers and therapeutic targets in human vitiligo.
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Affiliation(s)
- Anupama Sahoo
- Sanford Burnham Prebys Medical Discovery Institute, 6400 Sanger Road, Orlando, Florida, USA
| | - Bongyong Lee
- Sanford Burnham Prebys Medical Discovery Institute, 6400 Sanger Road, Orlando, Florida, USA
| | - Katia Boniface
- Department of Dermatology and Pediatric Dermatology, National Reference Center for Rare Skin Disorders, Hôpital Saint-André, Bordeaux, France; Institut National de la Santé Et de la Recherche Médicale (INSERM) U1035, Biothérapies de Maladies Génétiques, Inflammatoires et Cancers (BMGIC), Immuno-dermatology ATIP-AVENIR, University of Bordeaux, Bordeaux, France
| | - Julien Seneschal
- Department of Dermatology and Pediatric Dermatology, National Reference Center for Rare Skin Disorders, Hôpital Saint-André, Bordeaux, France; Institut National de la Santé Et de la Recherche Médicale (INSERM) U1035, Biothérapies de Maladies Génétiques, Inflammatoires et Cancers (BMGIC), Immuno-dermatology ATIP-AVENIR, University of Bordeaux, Bordeaux, France
| | - Sanjaya K Sahoo
- Sanford Burnham Prebys Medical Discovery Institute, 6400 Sanger Road, Orlando, Florida, USA
| | - Tatsuya Seki
- Sanford Burnham Prebys Medical Discovery Institute, 6400 Sanger Road, Orlando, Florida, USA; Medical and Biological Laboratories, Nagoya, Japan
| | - Chunyan Wang
- Sanford Burnham Prebys Medical Discovery Institute, 6400 Sanger Road, Orlando, Florida, USA
| | - Soumen Das
- Advanced Materials Processing and Analysis Center, Nanoscience and Technology Center, Materials Science and Engineering, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Xianlin Han
- Sanford Burnham Prebys Medical Discovery Institute, 6400 Sanger Road, Orlando, Florida, USA
| | - Michael Steppie
- Department of Dermatology, Florida State University College of Medicine, Orlando Regional Campus, Orlando, Florida, USA
| | - Sudipta Seal
- Advanced Materials Processing and Analysis Center, Nanoscience and Technology Center, Materials Science and Engineering, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Alain Taieb
- Department of Dermatology and Pediatric Dermatology, National Reference Center for Rare Skin Disorders, Hôpital Saint-André, Bordeaux, France; Institut National de la Santé Et de la Recherche Médicale (INSERM) U1035, Biothérapies de Maladies Génétiques, Inflammatoires et Cancers (BMGIC), Immuno-dermatology ATIP-AVENIR, University of Bordeaux, Bordeaux, France
| | - Ranjan J Perera
- Sanford Burnham Prebys Medical Discovery Institute, 6400 Sanger Road, Orlando, Florida, USA.
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35
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Sundermeier TR, Sakami S, Sahu B, Howell SJ, Gao S, Dong Z, Golczak M, Maeda A, Palczewski K. MicroRNA-processing Enzymes Are Essential for Survival and Function of Mature Retinal Pigmented Epithelial Cells in Mice. J Biol Chem 2017; 292:3366-3378. [PMID: 28104803 DOI: 10.1074/jbc.m116.770024] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 01/17/2017] [Indexed: 11/06/2022] Open
Abstract
Age-related macular degeneration (AMD) is a major cause of irreversible vision loss. The neovascular or "wet" form of AMD can be treated to varying degrees with anti-angiogenic drugs, but geographic atrophy (GA) is an advanced stage of the more prevalent "dry" form of AMD for which there is no effective treatment. Development of GA has been linked to loss of the microRNA (miRNA)-processing enzyme DICER1 in the mature retinal pigmented epithelium (RPE). This loss results in the accumulation of toxic transcripts of Alu transposable elements, which activate the NLRP3 inflammasome and additional downstream pathways that compromise the integrity and function of the RPE. However, it remains unclear whether the loss of miRNA processing and subsequent gene regulation in the RPE due to DICER1 deficiency also contributes to RPE cell death. To clarify the role of miRNAs in RPE cells, we used two different mature RPE cell-specific Cre recombinase drivers to inactivate either Dicer1 or DiGeorge syndrome critical region 8 (Dgcr8), thus removing RPE miRNA regulatory activity in mice by disrupting two independent and essential steps of miRNA biogenesis. In contrast with prior studies, we found that the loss of each factor independently led to strikingly similar defects in the survival and function of the RPE and retina. These results suggest that the loss of miRNAs also contributes to RPE cell death and loss of visual function and could affect the pathology of dry AMD.
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Affiliation(s)
| | | | | | | | | | | | - Marcin Golczak
- Departments of Pharmacology; Cleveland Center for Membrane and Structural Biology, Case Western Reserve University, Cleveland, Ohio 44106
| | - Akiko Maeda
- Ophthalmology and Visual Sciences, School of Medicine
| | - Krzysztof Palczewski
- Departments of Pharmacology; Cleveland Center for Membrane and Structural Biology, Case Western Reserve University, Cleveland, Ohio 44106.
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Wang P, Du X, Xiong M, Cui J, Yang Q, Wang W, Chen Y, Zhang T. Ginsenoside Rd attenuates breast cancer metastasis implicating derepressing microRNA-18a-regulated Smad2 expression. Sci Rep 2016; 6:33709. [PMID: 27641158 PMCID: PMC5027393 DOI: 10.1038/srep33709] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 09/01/2016] [Indexed: 12/25/2022] Open
Abstract
Metastasis remains a major cause of mortality and poor prognosis in breast cancer patients. Anti-metastatic therapies are in great need to achieve optimal clinical outcome in breast cancer patients. Panax Notoginseng Saponins (PNS) has previously been shown to inhibit breast cancer metastasis in mouse. Here the potential anti-metastatic effect of one of the chemical compounds of PNS, ginsenoside Rd (Rd), was further evaluated in mouse mammary carcinoma 4T1 cells. The results revealed that Rd treatment dose-dependently suppressed cell migration and invasion in cultured 4T1 cells. In 4T1 cell-inoculated mice, Rd treatment led to decreased number of tumor lesions in lungs in both spontaneous and experimental metastasis models. Rd treatment resulted in increased expression of Smad2 in cultured 4T1 cells and in tumors grown from inoculated 4T1 cells. Rd treatment decreased the expression of microRNA (miR)-18a in cultured 4T1 cells and in tumors derived from inoculated 4T1 cells. Smad2 was further verified to be a direct target of miR-18a in 4T1 cells. The significant impact of Rd on counteracting miR-18a-medidated downregulation of Smad2 expression was also demonstrated. Together, the current work shows for the first time that Rd treatment attenuates breast cancer metastasis in part through derepressing miR-18a-mediated Smad2 expression regulation.
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Affiliation(s)
- Peiwei Wang
- Yueyang Hospital &Clinical Research Institute of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Xiaoye Du
- Yueyang Hospital &Clinical Research Institute of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Minqi Xiong
- Yueyang Hospital &Clinical Research Institute of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Jingang Cui
- Yueyang Hospital &Clinical Research Institute of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Qinbo Yang
- Yueyang Hospital &Clinical Research Institute of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Wenjian Wang
- Yueyang Hospital &Clinical Research Institute of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Yu Chen
- Yueyang Hospital &Clinical Research Institute of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Teng Zhang
- Yueyang Hospital &Clinical Research Institute of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
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37
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Jiang S, Yu X, Dong C. MiR-137 affects melanin synthesis in mouse melanocyte by repressing the expression of c-Kit and Tyrp2 in SCF/c-Kit signaling pathway. Biosci Biotechnol Biochem 2016; 80:2115-2121. [PMID: 27323927 DOI: 10.1080/09168451.2016.1200455] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Previously, we created miR-137 overexpressing transgenic mice that produced lighten color phenotypes including gray mice phenotype. However, the miR-137 functional role in coat color regulation is still not well understood. In this study, the quantity of melanin granule and the relative expression of TYRP2 in gray miR-137 overexpression transgenic mouse skin were significantly lower than that in C57BL/6J black mouse skin. The mRNA and protein expression level of c-Kit and c-Kit downstream gene Tyrp2 in miR-137 expression plasmid-transfected melanocytes were significantly down-regulated comparing with that of the control melanocytes. In melanocytes, miR-137 overexpression could decrease the enhanced expression of c-Kit and Tyrp2 and the increased melanin production caused by UV treatment. The target relationship of miR-137 and c-Kit was identified by luciferase assay. The results suggest that miR-137 could inhibit melanogenesis in mouse skin melanocytes by repressing the expression of c-Kit and Tyrp2 in SCF/c-Kit signaling pathway.
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Affiliation(s)
- Shan Jiang
- a College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , China
| | - Xiuju Yu
- a College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , China
| | - Changsheng Dong
- a College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , China
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38
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Jiang G, Cui Y, Yu X, Wu Z, Ding G, Cao L. miR-211 suppresses hepatocellular carcinoma by downregulating SATB2. Oncotarget 2016; 6:9457-66. [PMID: 25888635 PMCID: PMC4496230 DOI: 10.18632/oncotarget.3265] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 01/31/2015] [Indexed: 12/24/2022] Open
Abstract
Dysregulation of microRNAs (miRs) is involved in carcinogenesis. Deregulation of miR-211 has recently been observed in many tumors, but its function in hepatocellular carcinoma (HCC) is still unknown. Here we found that miR-211 was decreased in HCC cancer tissues compared with adjacent normal tissues. We also found that overexpression of miR-211 repressed proliferation and invasion in HepG2 and SMMC7721 cells. Luciferase reporter assays and western blot indicated that special AT-rich sequence-binding protein-2 (SATB2), is a direct target of miR-211. The expression of SATB2 was upregulated in HCC cancer tissues and cell lines and miR-211 levels inversely correlated with SATB2 levels in HCC. Importantly, SATB2 rescued the miR-211-mediated inhibition of cell invasion and proliferation. Finally, reintroduction of miR-211 repressed tumor formation of HCC in xenograft mice. This study provides insights into molecular mechanisms that miR-211 contributed to HCC.
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Affiliation(s)
- Guixing Jiang
- Department of Hepatopancreatobiliary Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yunfu Cui
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xin Yu
- Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Zhengrong Wu
- Department of Hepatopancreatobiliary Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Guoping Ding
- Department of Hepatopancreatobiliary Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Liping Cao
- Department of Hepatopancreatobiliary Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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39
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De Luca T, Pelosi A, Trisciuoglio D, D'Aguanno S, Desideri M, Farini V, Di Martile M, Bellei B, Tupone MG, Candiloro A, Regazzo G, Rizzo MG, Del Bufalo D. miR-211 and MITF modulation by Bcl-2 protein in melanoma cells. Mol Carcinog 2015; 55:2304-2312. [PMID: 26599548 DOI: 10.1002/mc.22437] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 10/16/2015] [Accepted: 11/03/2015] [Indexed: 11/08/2022]
Abstract
Melanoma, the most lethal form of skin cancer, is frequently associated with alterations in several genes, among which the Bcl-2 oncogene plays an important role in progression, chemosensitivity and angiogenesis. Also microRNA (miRNA) are emerging as modulators of melanoma development and progression, and among them, miR-211, located within the melastatin-1/TRPM1 (transient receptor potential cation channel, subfamily M, member 1 protein) gene, is prevalently expressed in the melanocyte lineage and acts as oncosuppressor. Using several human melanoma cell lines and their Bcl-2 stably overexpressing derivatives, we evaluated whether there was a correlation between expression of Bcl-2 and miR-211. Western blot analysis and quantitative real-time polymerase chain reaction demonstrated reduced expression of pri-miR-211, miR-211, TRPM1, and MLANA levels, after Bcl-2 overexpression, associated with increased expression of well-known miR-211 target genes. Overexpression of mature miR-211 in Bcl-2 overexpressing cells rescued Bcl-2 ability to increase cell migration. A decreased nuclear localization of microphthalmia-associated transcription factor (MITF), a co-regulator of both miR-211 and TRPM1, and a reduced MITF recruitment at the TRPM1 and MLANA promoters were also evidenced in Bcl-2 overexpressing cells by immunofluorescence and chromatin immunoprecipitation experiments, respectively. Reduction of Bcl-2 expression by small interference RNA confirmed the ability of Bcl-2 to modulate miR-211 and TRPM1 expression. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Teresa De Luca
- Experimental Chemotherapy Laboratory, Regina Elena National Cancer Institute, Rome, Italy
| | - Andrea Pelosi
- Molecular Oncogenesis Laboratory, Regina Elena National Cancer Institute, Rome, Italy
| | - Daniela Trisciuoglio
- Experimental Chemotherapy Laboratory, Regina Elena National Cancer Institute, Rome, Italy
| | - Simona D'Aguanno
- Experimental Chemotherapy Laboratory, Regina Elena National Cancer Institute, Rome, Italy
| | - Marianna Desideri
- Experimental Chemotherapy Laboratory, Regina Elena National Cancer Institute, Rome, Italy
| | - Valentina Farini
- Experimental Chemotherapy Laboratory, Regina Elena National Cancer Institute, Rome, Italy
| | - Marta Di Martile
- Experimental Chemotherapy Laboratory, Regina Elena National Cancer Institute, Rome, Italy
| | - Barbara Bellei
- Laboratory of Cutaneous Physiopathology, San Gallicano Dermatologic Institute, Rome, Italy
| | - Maria Grazia Tupone
- Experimental Chemotherapy Laboratory, Regina Elena National Cancer Institute, Rome, Italy
| | - Antonio Candiloro
- Experimental Chemotherapy Laboratory, Regina Elena National Cancer Institute, Rome, Italy
| | - Giulia Regazzo
- Molecular Oncogenesis Laboratory, Regina Elena National Cancer Institute, Rome, Italy
| | - Maria Giulia Rizzo
- Molecular Oncogenesis Laboratory, Regina Elena National Cancer Institute, Rome, Italy
| | - Donatella Del Bufalo
- Experimental Chemotherapy Laboratory, Regina Elena National Cancer Institute, Rome, Italy
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40
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Apopo S, Liu H, Jing L, Du X, Xie S, Gong Y, Xu R, Li S. Identification and profiling of microRNAs associated with white and black plumage pigmentation in the white and black feather bulbs of ducks by RNA sequencing. Anim Genet 2015; 46:627-35. [PMID: 26369256 DOI: 10.1111/age.12343] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2015] [Indexed: 11/29/2022]
Abstract
MicroRNAs (miRNAs) play important roles in many biological processes by regulating gene expression at the post-transcriptional level. However, the mechanism by which specific miRNAs may regulate plumage pigmentation has remained largely elusive. In this study, we sequenced miRNAs using Solexa sequencing and then performed a detailed analysis of their expression profiles between the black and white feather bulbs of ducks from Cui Hei, Kaiya, Liancheng pure breeds and a Kaiya-Liancheng F2 population. mirdeep2 software identified 121 conserved and eight novel miRNAs. Five differentially expressed miRNAs between the two tissues types were also identified by degseq software. Notably, miR-204 was predominantly expressed in black feather bulbs. To further validate the sequencing data, we applied stem-loop quantitative PCR of ten known miRNAs based on the identified sequences. Furthermore, in exploring the temporal expression pattern of miR-204, we performed profiling in nine duck tissues. The targets of these miRNAs were predicted using a PITA algorithm and were later grouped based on Gene Ontology and KEGG pathway analysis using the DAVID website. The melanogenesis pathway was among the identified signalling pathways, implying key roles of these miRNAs in plumage pigmentation. Expression analysis of the target genes in the melanogenesis pathways was also performed. This study provides the foundation for subsequent studies on the prospective practical role for such miRNAs in post-transcriptional gene regulation linked to plumage pigmentation.
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Affiliation(s)
- S Apopo
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - H Liu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - L Jing
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - X Du
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China.,College of Informatics, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - S Xie
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - Y Gong
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - R Xu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - S Li
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
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41
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Andl T, Botchkareva NV. MicroRNAs (miRNAs) in the control of HF development and cycling: the next frontiers in hair research. Exp Dermatol 2015; 24:821-6. [PMID: 26121602 DOI: 10.1111/exd.12785] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/23/2015] [Indexed: 12/17/2022]
Abstract
Hair follicle development and its postnatal regeneration are characterized by dramatic changes in its microanatomy and cellular activity, which are controlled by multiple signalling pathways, transcription factors and epigenetic regulators, including microRNAs (miRNAs). miRNAs and their targets form remarkably diverse regulatory networks, playing a key role in the execution of gene expression programmes in the different cell lineages of the hair follicle. This review summarizes the roles of miRNAs in the control of hair follicle development, cycling and hair pigmentation, emphasizes the remaining problems/unanswered questions, and provides future directions in this rapidly growing and exciting area of research.
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Affiliation(s)
- Thomas Andl
- Department of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Natalia V Botchkareva
- Centre for Skin Sciences, Faculty of Life Sciences, University of Bradford, Bradford, UK
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