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Zeltzer AA, Keren A, Paus R, Gilhar A. Topical Minoxidil Rejuvenates Hair Follicles from Men with Androgenetic Alopecia in Vivo. Acta Derm Venereol 2024; 104:adv24213. [PMID: 38860623 PMCID: PMC11181920 DOI: 10.2340/actadv.v104.24213] [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: 10/24/2023] [Accepted: 05/16/2024] [Indexed: 06/12/2024] Open
Abstract
Abstract is missing (Short communication)
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Affiliation(s)
- Assaf A Zeltzer
- Plastic & Reconstructive Surgery Department, Rambam Health Care Campus, Haifa, Israel
| | - Aviad Keren
- Skin Research Laboratory, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Ralf Paus
- Dr. Phillip Frost Department of Dermatology & Cutaneous Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA; CUTANEON, Hamburg & Berlin, Germany
| | - Amos Gilhar
- Skin Research Laboratory, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel.
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Jin X, Song X. Autophagy Dysfunction: The Kernel of Hair Loss? Clin Cosmet Investig Dermatol 2024; 17:1165-1181. [PMID: 38800357 PMCID: PMC11122274 DOI: 10.2147/ccid.s462294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 05/04/2024] [Indexed: 05/29/2024]
Abstract
Autophagy is recognized as a crucial regulatory process, instrumental in the removal of senescent, dysfunctional, and damaged cells. Within the autophagic process, lysosomal digestion plays a critical role in the elimination of impaired organelles, thus preserving fundamental cellular metabolic functions and various biological processes. Mitophagy, a targeted autophagic process that specifically focuses on mitochondria, is essential for sustaining cellular health and energy balance. Therefore, a deep comprehension of the operational mechanisms and implications of autophagy and mitophagy is vital for disease prevention and treatment. In this context, we examine the role of autophagy and mitophagy during hair follicle cycles, closely scrutinizing their potential association with hair loss. We also conduct a thorough review of the regulatory mechanisms behind autophagy and mitophagy, highlighting their interaction with hair follicle stem cells and dermal papilla cells. In conclusion, we investigate the potential of manipulating autophagy and mitophagy pathways to develop innovative therapeutic strategies for hair loss.
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Affiliation(s)
- Xiaofan Jin
- Zhejiang University School of Medicine, Department of Dermatology, Hangzhou Third People’s Hospital, Affiliated Hangzhou Dermatology Hospital, Hangzhou, People’s Republic of China
| | - Xiuzu Song
- Department of Dermatology, Hangzhou Third People’s Hospital, Affiliated Hangzhou Dermatology Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
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Kamishima T, Hirabe C, Myint KZY, Taguchi J. Divergent progression pathways in male androgenetic alopecia and female pattern hair loss: Trichoscopic perspectives. J Cosmet Dermatol 2024; 23:1828-1839. [PMID: 38189587 DOI: 10.1111/jocd.16177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/22/2023] [Accepted: 12/28/2023] [Indexed: 01/09/2024]
Abstract
BACKGROUND Despite similarities in progressive miniaturization of hair follicles and transition of terminal hairs to vellus hairs, insufficient trichoscopic comparisons between male androgenetic alopecia (MAGA) and female pattern hair loss (FPHL) hinder our ability to select effective treatments. AIM Our study aimed to explore gender-specific trichoscopic characteristics of MAGA and FPHL, while formulating hypotheses regarding the progression of these conditions across clinical stages. METHODS We classified 126 male MAGA subjects using Hamilton-Norwood Classification and 57 FPHL subjects using adopted Sinclair Scale. Subsequently, we analyzed nine trichoscopic factors divided into three categories: hair-diameter related, hair-number per follicular unit related, and hair density related factors. RESULTS Of the nine quantitative trichoscopic factors, hair-diameter and hair-number per follicular unit showed strong correlations with clinical stages in both genders. Hair density, a common trichoscopic factor for hair loss evaluation, weakly correlated with clinical stages in FPHL, but not at all in MAGA. In addition, MAGA was characterized by a progressive reduction in hair-diameter, followed by a reduction in hair-number per follicular unit. FPHL, on the contrary, showed the opposite progression. CONCLUSIONS Trichoscopic factors vary with disease severity in a gender-specific manner. Our research highlights that MAGA and FPHL involve two distinct streams: hair-diameter decreasing by hair follicle miniaturization (Stream 1), and hair-number per follicular unit decreasing by hair follicle tri-lineage niche dysfunction (Stream 2). MAGA typically starts from Stream 1 to Stream 2, while FPHL starts from Stream 2. These diverse progression pathways underscore the importance of personalized treatment approaches.
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Affiliation(s)
- Tomoko Kamishima
- Department of Dermatology, Tokyo Midtown Skin/Aesthetic Clinic Noage, Tokyo, Japan
| | - Chie Hirabe
- Department of Dermatology, Tokyo Midtown Skin/Aesthetic Clinic Noage, Tokyo, Japan
| | - Khin Zay Yar Myint
- Tokyo Midtown Center for Advanced Medical Science and Technology, Tokyo, Japan
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Xie Y, Jiang H. The exploration of mitochondrial-related features helps to reveal the prognosis and immunotherapy methods of colorectal cancer. Cancer Rep (Hoboken) 2024; 7:e1914. [PMID: 37903487 PMCID: PMC10809275 DOI: 10.1002/cnr2.1914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/01/2023] [Accepted: 09/29/2023] [Indexed: 11/01/2023] Open
Abstract
BACKGROUND Cancer cell survival, proliferation, and metabolism are all intertwined with mitochondria. However, a complete description of how the features of mitochondria relate to the tumor microenvironment (TME) and immunological landscape of colorectal cancer (CRC) has yet to be made. We performed subgroup analysis on CRC patient data obtained from the databases using non-negative matrix factorization (NMF) clustering. Construct a prognostic model using the mitochondrial-related gene (MRG) risk score, and then compare it to other models for accuracy. Comprehensive analyses of the risk score, in conjunction with the TME and immune landscape, were performed, and the relationship between the model and different types of cell death, radiation and chemotherapy, and drug resistance was investigated. Results from immunohistochemistry and single-cell sequencing were utilized to verify the model genes, and a drug sensitivity analysis was conducted to evaluate possible therapeutic medicines. The pan-cancer analysis is utilized to further investigate the role of genes in a wider range of malignancies. METHODS AND RESULTS We found that CRC patients based on MRG were divided into two groups with significant differences in survival outcomes and TME between groups. The predictive power of the risk score was further shown by building a prognostic model and testing it extensively in both internal and external cohorts. Multiple immune therapeutic responses and the expression of immunological checkpoints demonstrate that the risk score is connected to immunotherapy success. The correlation analysis of the risk score provide more ideas and guidance for prognostic models in clinical treatment. CONCLUSION The TME, immune cell infiltration, and responsiveness to immunotherapy in CRC were all thoroughly evaluated on the basis of MRG features. The comparative validation of multiple queues and models combined with clinical data ensures the effectiveness and clinical practicality of MRG features. Our studies help clinicians create individualized treatment programs for individuals with cancer.
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Affiliation(s)
- Yun‐hui Xie
- Center of Gastrointestinal and Minimally Invasive Surgery, Department of General Surgery, The Third People's Hospital of ChengduAffiliated Hospital of Southwest Jiaotong UniversityChengduChina
| | - Hui‐zhong Jiang
- College of GraduateGuizhou University of Traditional Chinese MedicineGuiyangChina
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Kinoshita-Ise M, Fukuyama M, Ohyama M. Recent Advances in Understanding of the Etiopathogenesis, Diagnosis, and Management of Hair Loss Diseases. J Clin Med 2023; 12:jcm12093259. [PMID: 37176700 PMCID: PMC10179687 DOI: 10.3390/jcm12093259] [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: 03/26/2023] [Revised: 04/26/2023] [Accepted: 04/29/2023] [Indexed: 05/15/2023] Open
Abstract
Hair-loss diseases comprise heterogenous conditions with respective pathophysiology and clinicopathological characteristics. Major breakthroughs in hair follicle biology and immunology have led to the elucidation of etiopathogenesis of non-scarring alopecia (e.g., alopecia areata, AA) and cicatricial alopecia (e.g., lichen planopilaris, LPP). High-throughput genetic analyses revealed molecular mechanism underlying the disease susceptibility of hair loss conditions, such as androgenetic alopecia (AGA) and female pattern hair loss (FPHL). Hair loss attracted public interest during the COVID-19 pandemic. The knowledge of hair loss diseases is robustly expanding and thus requires timely updates. In this review, the diagnostic and measurement methodologies applied to hair loss diseases are updated. Of note, novel criteria and classification/scoring systems published in the last decade are reviewed, highlighting their advantages over conventional ones. Emerging diagnostic techniques are itemized with clinical pearls enabling efficient utilization. Recent advances in understanding the etiopathogenesis and management for representative hair diseases, namely AGA, FPHL, AA, and major primary cicatricial alopecia, including LPP, are comprehensively summarized, focusing on causative factors, genetic predisposition, new disease entity, and novel therapeutic options. Lastly, the association between COVID-19 and hair loss is discussed to delineate telogen effluvium as the predominating pathomechanism accounting for this sequela.
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Affiliation(s)
- Misaki Kinoshita-Ise
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo 181-8611, Japan
| | - Masahiro Fukuyama
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo 181-8611, Japan
| | - Manabu Ohyama
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo 181-8611, Japan
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Wei H, Yang S, Yi T, Xu X, Liu C, Shen C, Guo Y, Li Q, Jin P. CircAGK regulates high dihydrotestosterone-induced apoptosis in DPCs through the miR-3180-5p/BAX axis. FASEB J 2023; 37:e22728. [PMID: 36607259 DOI: 10.1096/fj.202200849r] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 10/28/2022] [Accepted: 12/12/2022] [Indexed: 01/07/2023]
Abstract
The incidence of androgen alopecia (AGA), also known as seborrheic alopecia, has surged in recent years, and onset is occurring at younger ages. Dermal papilla cells (DPCs) are key to maintaining hair cycling, and apoptosis-driven processes in DPCs are closely related to hair follicle regeneration. Circular RNAs (circRNAs) are widely present in the human body and are closely related to the occurrence and development of many diseases. Currently, the biological functions of circRNAs in AGA are largely unknown. Whole-transcriptome sequencing was used to screen differential circRNA expression profiles between AGA patients and non-AGA patients. We found that hsa_circ_0002980 (circAGK) was significantly highly expressed in the AGA group. CircAGK promoted DPC apoptosis in the presence of high dihydrotestosterone (DHT) (15 nmol/L). By regulating the miR-3180-5p/BAX axis, circAGK promotes DPC apoptosis in a high DHT environment in vitro and inhibits hair growth in AGA mice in vivo, indicating that circAGK is a potential target for the clinical treatment of AGA.
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Affiliation(s)
- Hanxiao Wei
- Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Shuai Yang
- The First College of Clinical Medicine, Xuzhou Medical University, Xuzhou, China
| | - Tian Yi
- The First College of Clinical Medicine, Xuzhou Medical University, Xuzhou, China
| | - Xiaoyu Xu
- The First College of Clinical Medicine, Xuzhou Medical University, Xuzhou, China
| | - Chang Liu
- The First College of Clinical Medicine, Xuzhou Medical University, Xuzhou, China
| | - Caiqi Shen
- Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yanping Guo
- Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Qiang Li
- Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Peisheng Jin
- Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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Shi Y, Huang G, Jiang F, Zhu J, Xu Q, Fang H, Lan S, Pan Z, Jian H, Li L, Zhang Y. Deciphering a mitochondria-related signature to supervise prognosis and immunotherapy in hepatocellular carcinoma. Front Immunol 2022; 13:1070593. [PMID: 36544763 PMCID: PMC9761315 DOI: 10.3389/fimmu.2022.1070593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 11/17/2022] [Indexed: 12/12/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is a major public health problem in humans. The imbalance of mitochondrial function has been discovered to be closely related to the development of cancer recently. However, the role of mitochondrial-related genes in HCC remains unclear. Methods The RNA-sequencing profiles and patient information of 365 samples were derived from the Cancer Genome Atlas (TCGA) dataset. The mitochondria-related prognostic model was established by univariate Cox regression analysis and LASSO Cox regression analysis. We further determined the differences in immunity and drug sensitivity between low- and high-risk groups. Validation data were obtained from the International Cancer Genome Consortium (ICGC) dataset of patients with HCC. The protein and mRNA expression of six mitochondria-related genes in tissues and cell lines was verified by immunohistochemistry and qRT-PCR. Results The six mitochondria-related gene signature was constructed for better prognosis forecasting and immunity, based on which patients were divided into high-risk and low-risk groups. The ROC curve, nomogram, and calibration curve exhibited admirable clinical predictive performance of the model. The risk score was associated with clinicopathological characteristics and proved to be an independent prognostic factor in patients with HCC. The above results were verified in the ICGC validation cohort. Compared with normal tissues and cell lines, the protein and mRNA expression of six mitochondria-related genes was upregulated in HCC tissues and cell lines. Conclusion The signature could be an independent factor that supervises the immunotherapy response of HCC patients and possess vital guidance value for clinical diagnosis and treatment.
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Affiliation(s)
- Yanlong Shi
- Hepatopancreatobiliary Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Guo Huang
- Hengyang Medical School, University of South China, Hengyang, Hunan, China,Key Laboratory of Tumor Cellular and Molecular Pathology, College of Hunan Province, Cancer Research Institute, University of South China, Hengyang, Hunan, China
| | - Fei Jiang
- Department of General Surgery, Fuyang Hospital of Anhui Medical University, Fuyang, Anhui, China
| | - Jun Zhu
- Department of Oncology, Fuyang Hospital of Anhui Medical University, Fuyang, Anhui, China
| | - Qiyang Xu
- Department of General Surgery, the Fifth People’s Hospital of Fuyang City, Fuyang, Anhui, China
| | - Hanlu Fang
- Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Sheng Lan
- The Second Clinical College of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ziyuan Pan
- Hengyang Hospital affiliated of Hunan University of Chinese Medicine, Hengyang, Hunan, China
| | - Haokun Jian
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, China
| | - Li Li
- Department of General Surgery, Fuyang Hospital of Anhui Medical University, Fuyang, Anhui, China,*Correspondence: Li Li, ; Yewei Zhang,
| | - Yewei Zhang
- Hepatopancreatobiliary Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China,*Correspondence: Li Li, ; Yewei Zhang,
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Allam AA, Fathalla D, Safwat MA, Soliman GM. Transferosomes versus transethosomes for the dermal delivery for minoxidil: Preparation and in vitro/ex vivo appraisal. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Kang YH, Hyun JE, Hwang CY. The number of mitochondrial DNA mutations as a genetic feature for hair cycle arrest (alopecia X) in Pomeranian dogs. Vet Dermatol 2022; 33:545-552. [PMID: 36000586 DOI: 10.1111/vde.13114] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/24/2022] [Accepted: 05/04/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Hair cycle arrest (HCA) is a noninflammatory alopecic disease affecting various dog breeds, particularly Pomeranian dogs. This disease is probably a hereditary disorder considering the strong breed predisposition. Despite efforts to identify the pathogenesis of this disease, an underlying specific cause is unknown. OBJECTIVE To identify candidate gene mutations for HCA in Pomeranian dogs. ANIMALS Four Pomeranian dogs diagnosed with HCA and four unaffected Pomeranian dogs. MATERIALS AND METHODS Whole blood was used for DNA extraction. Whole-genome sequencing (WGS) was performed, and variants were analysed using a Genome Analysis Toolkit (GATK) and SnpEff. All reads were aligned to the reference genome, Dog10K_Boxer_Tasha. Sanger sequencing was performed to define the complex mutations. RESULTS A total of 113 variants of mitochondrial DNA were found to be effective gene mutations in the eight dogs. The affected dogs showed significantly increased effective mutations (average 57 variants) compared with unaffected dogs (average eight variants; p < 0.05). There was no significant difference in the number of chromosomal DNA mutations between the two groups. CONCLUSION AND CLINICAL IMPORTANCE We suggest that an increased number of mitochondrial gene mutations are features for HCA in Pomeranian dogs.
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Affiliation(s)
- Yeong-Hun Kang
- Laboratory of Veterinary Dermatology and the Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Jae-Eun Hyun
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Cheol-Yong Hwang
- Laboratory of Veterinary Dermatology and the Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
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