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Alam M, Bertolini M, Gherardini J, Keren A, Ponce L, Chéret J, Alenfall J, Dunér P, Nilsson AH, Gilhar A, Paus R. An osteopontin-derived peptide inhibits human hair growth at least in part by decreasing fibroblast growth factor-7 production in outer root sheath keratinocytes. Br J Dermatol 2019; 182:1404-1414. [PMID: 31487385 DOI: 10.1111/bjd.18479] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/25/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Given that unwanted hair growth (hirsutism, hypertrichosis) can cause major psychological distress, new pharmacological treatment strategies with safe and effective hair growth inhibitors that do not destroy the hair follicle (HF) and its stem cells need to be developed. OBJECTIVES To establish if osteopontin-derived fragments may modulate human hair growth given that human HFs express the multifunctional, immunomodulatory glycoprotein, osteopontin. METHODS Our hypothesis was tested ex vivo and in vivo by using a newly generated, toxicologically well-characterized, modified osteopontin-derived peptide (FOL-005), which binds to the HF. RESULTS In organ-cultured human HFs and scalp skin, and in human scalp skin xenotransplants onto SCID mice, FOL-005 treatment (60 nmol L-1 to 3 μmol L-1 ) significantly promoted premature catagen development without reducing the number of keratin 15-positive HF stem cells or showing signs of drug toxicity. Genome-wide DNA microarray, quantitative reverse-transcriptase polymerase chain reaction and immunohistochemistry revealed decreased expression of the hair growth promoter, fibroblast growth factor-7 (FGF7) by FOL-005, while cotreatment of HFs with recombinant FGF7 partially abrogated FOL-005-induced catagen promotion. CONCLUSIONS With caveats in mind, our study identifies this osteopontin-derived peptide as an effective, novel inhibitory principle for human hair growth ex vivo and in vivo, which deserves systematic clinical testing in hirsutism and hypertrichosis. What's already known about this topic? The treatment of unwanted hair growth (hypertrichosis, hirsutism) lacks pharmacological intervention, with only few and often unsatisfactory treatments available. Osteopontin is prominently expressed in human HFs and has been reported to be elevated during catagen in the murine hair cycle. What does this study add? We tested the effects on hair growth of a novel, osteopontin-derived fragment (FOL-005) ex vivo and in vivo. In human hair follicles, high-dose FOL-005 significantly reduces hair growth both ex vivo and in vivo. What is the translational message? High-dose FOL-005 may provide a new therapeutic opportunity as a treatment for unwanted hair growth.
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Affiliation(s)
- M Alam
- Monasterium Laboratory - Skin and Hair Research Solutions GmbH, Münster, Germany.,Mediteknia Skin & Hair Lab, Las Palmas de Gran Canaria, Spain.,Universidad Fernando Pessoa Canarias, Las Palmas de Gran Canaria, Spain
| | - M Bertolini
- Monasterium Laboratory - Skin and Hair Research Solutions GmbH, Münster, Germany
| | - J Gherardini
- Monasterium Laboratory - Skin and Hair Research Solutions GmbH, Münster, Germany
| | - A Keren
- Laboratory for Skin Research, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - L Ponce
- Monasterium Laboratory - Skin and Hair Research Solutions GmbH, Münster, Germany
| | - J Chéret
- Monasterium Laboratory - Skin and Hair Research Solutions GmbH, Münster, Germany
| | | | - P Dunér
- Follicum AB, Lund, Sweden.,Department of Clinical Sciences, Lund University, Lund, Sweden
| | - A H Nilsson
- Follicum AB, Lund, Sweden.,Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - A Gilhar
- Laboratory for Skin Research, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - R Paus
- Centre for Dermatology Research, University of Manchester and NIHR Manchester Biomedical Research Centre, Manchester, U.K.,Dr. Philip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, U.S.A
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Niemann-Jönsson A, Ares MP, Yan ZQ, Bu DX, Fredrikson GN, Brånén L, Pörn-Ares I, Nilsson AH, Nilsson J. Increased rate of apoptosis in intimal arterial smooth muscle cells through endogenous activation of TNF receptors. Arterioscler Thromb Vasc Biol 2001; 21:1909-14. [PMID: 11742863 DOI: 10.1161/hq1201.100222] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Intimal proliferation of smooth muscle cells (SMCs) is a key event in the vascular response to injury, including the early stages of atherosclerosis and restenosis after angioplasty. Tumor necrosis factor-alpha (TNF-alpha) has been reported to stimulate growth of cultured human SMCs, but activation of TNF receptors is also known to induce cell death by apoptosis. We report here that SMCs isolated from the neointima of injured rat aortas are characterized by increased expression of TNF-alpha in response to interleukin-1beta and gamma-interferon compared with medial SMCs. Basal and serum-stimulated DNA synthesis was higher in intimal than in medial SMCs. In contrast to previous findings on human SMCs, exposure to interleukin-1beta/gamma-interferon or TNF-alpha did not affect the growth of rat medial SMCs, inhibited DNA synthesis, and decreased cell numbers in cultures of intimal SMCs. Incubation of intimal SMCs with these cytokines also resulted in induction of terminal dUTP nick end-labeling positivity and caspase-3 expression, suggesting cell death by apoptosis, whereas medial cells were markedly less sensitive in this respect. Cytokine-induced apoptosis in intimal cells was effectively inhibited by treatment with antibodies against TNF receptors. These findings suggest that endogenous activation of TNF receptors may represent a way to limit accumulation of SMCs in injured arteries. This mechanism may also be important in SMC death in advanced atherosclerotic plaques.
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Nilsson J, Sejersen T, Nilsson AH, Dalsgaard CJ. DNA synthesis induced by the neuropeptide substance K correlates to the level of myc-gene transcripts. Biochem Biophys Res Commun 1986; 137:167-74. [PMID: 2424445 DOI: 10.1016/0006-291x(86)91191-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Neuropeptides have recently been implicated in regulation of normal and neoplastic cell growth. Substance K is a neurotransmittor candidate that has been identified as a mitogen for smooth muscle cells and fibroblasts. However, the ability to respond to stimulation with substance K declines rapidly in cells serum-starved for more than 24 h and in parallel with a decrease in the intracellular level of myc-gene transcripts. Contrarily, myc-transformed cells, that inspite of a decrease demonstrated a high level of myc mRNA after 48 h in serum-free medium, maintained their ability to initiate DNA synthesis when stimulated with substance K. The results suggest that the intracellular signal of substance K-induced DNA synthesis interacts with the myc protein.
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