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Lousada MB, Edelkamp J, Lachnit T, Fehrholz M, Jimenez F, Paus R. Laser capture microdissection as a method for investigating the human hair follicle microbiome reveals region-specific differences in the bacteriome profile. BMC Res Notes 2023; 16:29. [PMID: 36879274 PMCID: PMC9987047 DOI: 10.1186/s13104-023-06302-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 02/20/2023] [Indexed: 03/08/2023] Open
Abstract
OBJECTIVE Human hair follicles (HFs) are populated by a rich and diverse microbiome, traditionally evaluated by methods that inadvertently sample the skin microbiome and/or miss microbiota located in deeper HF regions. Thereby, these methods capture the human HF microbiome in a skewed and incomplete manner. This pilot study aimed to use laser-capture microdissection of human scalp HFs, coupled with 16S rRNA gene sequencing to sample the HF microbiome and overcome these methodological limitations. RESULTS HFs were laser-capture microdissected (LCM) into three anatomically distinct regions. All main known core HF bacterial colonisers, including Cutibacterium, Corynebacterium and Staphylococcus, were identified, in all three HF regions. Interestingly, region-specific variations in α-diversity and microbial abundance of the core microbiome genera and Reyranella were identified, suggestive of variations in microbiologically relevant microenvironment characteristics. This pilot study therefore shows that LCM-coupled with metagenomics is a powerful tool for analysing the microbiome of defined biological niches. Refining and complementing this method with broader metagenomic techniques will facilitate the mapping of dysbiotic events associated with HF diseases and targeted therapeutic interventions.
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Affiliation(s)
- Marta B Lousada
- Monasterium Laboratory, Skin&Hair Research, Muenster, Germany. .,Zoological Institute, Christian-Albrechts University Kiel, Kiel, Germany.
| | - J Edelkamp
- Monasterium Laboratory, Skin&Hair Research, Muenster, Germany
| | - T Lachnit
- Zoological Institute, Christian-Albrechts University Kiel, Kiel, Germany
| | - M Fehrholz
- Monasterium Laboratory, Skin&Hair Research, Muenster, Germany
| | - F Jimenez
- Mediteknia Skin & Hair Lab, Las Palmas de Gran Canaria, Spain.,Medical Pathology Group, IUIBS, Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain
| | - R Paus
- Monasterium Laboratory, Skin&Hair Research, Muenster, Germany.,Dr Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA.,CUTANEON Skin & Hair Innovations, Hamburg, Germany
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Llamas-Molina JM, Carrero-Castaño A, Ruiz-Villaverde R, Campos A. Tissue Engineering and Regeneration of the Human Hair Follicle in Androgenetic Alopecia: Literature Review. Life (Basel) 2022; 12:117. [PMID: 35054510 PMCID: PMC8779163 DOI: 10.3390/life12010117] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/05/2022] [Accepted: 01/08/2022] [Indexed: 12/26/2022] Open
Abstract
Androgenetic alopecia (AGA) is an androgen-dependent process and represents the most frequent non-scarring alopecia. Treatments for AGA do not always achieve a satisfactory result for the patient, and sometimes cause side effects that lead to discontinuation of treatment. AGA therapeutics currently includes topical and oral drugs, as well as follicular unit micro-transplantation techniques. Tissue engineering (TE) is postulated as one of the possible future solutions to the problem and aims to develop fully functional hair follicles that maintain their cyclic rhythm in a physiological manner. However, despite its great potential, reconstitution of fully functional hair follicles is still a challenge to overcome and the knowledge gained of the key processes in hair follicle morphogenesis and biology has not yet been translated into effective replacement therapies in clinical practice. To achieve this, it is necessary to research and develop new approaches, techniques and biomaterials. In this review, present and emerging hair follicle bioengineering strategies are evaluated. The current problems of these bioengineering techniques are discussed, as well as the advantages and disadvantages, and the future prospects for the field of TE and successful hair follicle regeneration.
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Affiliation(s)
| | | | - Ricardo Ruiz-Villaverde
- Department of Dermatology, Hospital Universitario San Cecilio, 18016 Granada, Spain;
- Instituto Biosanitario de Granada, Ibs, 18016 Granada, Spain;
| | - Antonio Campos
- Instituto Biosanitario de Granada, Ibs, 18016 Granada, Spain;
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, 18016 Granada, Spain
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Hosny KM, Rizg WY, Alfayez E, Elgebaly SS, Alamoudi AJ, Felimban RI, Tayeb HH, Mushtaq RY, Safhi AY, Alharbi M, Almehmady AM. Preparation and optimization of aloe ferox gel loaded with Finasteride-Oregano oil nanocubosomes for treatment of alopecia. Drug Deliv 2022; 29:284-293. [PMID: 35019794 PMCID: PMC8757594 DOI: 10.1080/10717544.2022.2026534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Alopecia areata is a skin disorder characterized by scarless, localized hair loss that is usually managed by topical treatments that might further worsen the condition. Therefore, the current study aimed to develop nano-cubosomes loaded with finasteride (FI) and oregano oil (Or) to improve drug solubility and permeation through skin and then incorporate it into an aloe ferox gel base. An l-optimal coordinate exchange design was adopted to optimize nano-cubosomes. Phytantriol and Alkyl Acrylate were employed as the lipid material, and surfactant respectively for cubosomes manufacture. The produced formulations were assessed for their particle size, entrapment efficiency (EE%), FI steady-state flux (Jss) and minimum inhibitory concentration (MIC) against Pro-pionibacterium acnes. Optimal FI-Or-NCu had a particle size of 135 nm, EE% equals 70%, Jss of 1.85 μg/cm2.h, and MIC of 0.44 μg/ml. The optimum formulation loaded gel gained the highest drug release percent and ex vivo skin permeation compared to FI aqueous suspension, and pure FI loaded gel. Aloe ferox and oregano oil in the optimized gel formulation had a synergistic activity on the FI permeation across the skin and against the growth of p. acne bacteria which could favor their use in treating alopecia. Thus, this investigation affirms the ability of FI-Or-NCu loaded aloe ferox gel could be an effective strategy that would enhance FI release and permeation through skin and maximize its favorable effects in treating alopecia.
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Affiliation(s)
- Khaled M Hosny
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia.,Center of Excellence for Drug Research and Pharmaceutical Industries, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Waleed Y Rizg
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia.,Center of Excellence for Drug Research and Pharmaceutical Industries, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Eman Alfayez
- Department of Oral Biology, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Samar S Elgebaly
- Department of Clinical Biochemistry, Cairo Laboratories for clinical pathology, Cairo, Egypt
| | - Abdulmohsin J Alamoudi
- Department of Pharmacology and toxicology, Faculty of Pharmacy, King Abdulaziz University, Saudi Arabia
| | - Raed I Felimban
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,Center of Innovation in Personalized Medicine (CIPM), 3D Bioprinting Unit, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hossam H Tayeb
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,Center of Innovation in Personalized Medicine (CIPM), Nanomedicine Unit, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Rayan Y Mushtaq
- Department of Pharmaceutics, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Awaji Y Safhi
- Department of Pharmaceutics, Faculty of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Majed Alharbi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Saudi Arabia
| | - Alshaimaa M Almehmady
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
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