WO2020052629A1 - Application d'un ctpb activateur de p300 et d'un dérivé de celui-ci pour améliorer l'expression du collagène col17a1 - Google Patents
Application d'un ctpb activateur de p300 et d'un dérivé de celui-ci pour améliorer l'expression du collagène col17a1 Download PDFInfo
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- WO2020052629A1 WO2020052629A1 PCT/CN2019/105587 CN2019105587W WO2020052629A1 WO 2020052629 A1 WO2020052629 A1 WO 2020052629A1 CN 2019105587 W CN2019105587 W CN 2019105587W WO 2020052629 A1 WO2020052629 A1 WO 2020052629A1
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- ctpb
- col17a1
- activator
- expression
- hair
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/16—Amides, e.g. hydroxamic acids
- A61K31/165—Amides, e.g. hydroxamic acids having aromatic rings, e.g. colchicine, atenolol, progabide
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
- A61P17/14—Drugs for dermatological disorders for baldness or alopecia
Definitions
- the present invention relates to the field of pharmaceuticals and toiletries, and more specifically, the present invention discloses the use of a CTPB activator.
- Hair follicle stem cells promote hair follicle regeneration and hair growth, and also repair damaged epidermis.
- the differentiation of hair follicle stem cells is regulated by a variety of pseudogenes, including enhancers and the marker histone H3 (H3K27Ac).
- Enhancers are short DNA sequences that regulate the expression of a target gene. When the function of the enhancer is affected, it can lead to various diseases, such as autoimmune diseases and cancer.
- enhancers such as ATAC-seq and immunoprecipitation combined with high-throughput sequencing chromatin immunoprecipitation with high-throughput sequencing (ChIP-seq), which can find out how a fixed target is connected in the genome
- Histone markers such as histone markers, transcription factors or co-acting factors.
- H3K27ac active histone labeling H3K27ac or acetyltransferase p300 ChIP-seq, and ChIP-seq integrating multiple transcription factors.
- SE Super-enhancer
- SE has attracted much attention.
- Super enhancers are a unique group of active enhancers. They are dense enhancers and have a particularly strong active histone marker H3K27ac.
- H3K27ac active histone marker
- the first object of the present invention is to provide a use of a p300 activator CTPB to increase the expression of collagen Col17A1, which is completed based on the following research by the inventors: by analyzing a variety of super-enhancers in cells, including immune cells , Cerebellum, cerebral cortex, heart, liver, spleen, thyroid, intestine, and hair follicle stem cells, the inventors found that the super enhancer that regulates the Col17A1 gene is a super enhancer specific to hair follicle stem cells, so it can be a target to observe How various compounds and pseudogenetic mechanisms regulate the expression of Col17A1 gene.
- CTPB increased the expression of Col17A1 in a concentration gradient in fibroblasts, indicating that the apparent regulatory protein p300 is closely related to the differentiation of fibroblasts into hair follicle cells.
- Hair loss began to occur in 20-month-old C57 mice, and was applied to the skin with p300 activator CTPB (apply daily at a concentration of 200 nM in PEG-400 / ethanol / water at a ratio of 40% / 20% / 40%), mice weighed 35g / one, and treated for 14 days), compared with the control group (PEG-400 / ethanol / water only, the ratio was 40% / 20% / 40%), CTPB could increase Col17A1 Express and improve dissection.
- the above findings contributed to the present invention.
- Enhancers / super-enhancers hundreds of super-enhancers control most of the key genes that confer properties and functions to each cell. Changes in cell identity may begin and end with these superenhancers, which are very powerful, but also extremely sensitive to environmental changes.
- p300 is a member of the p300-CBP transcription coactivator family. It is involved in the transcriptional regulation of multiple transcription factors in different physiological processes, and has attracted much attention. Although P300 and CBP are encoded by different genes, their structures and functions are very similar, so p300 and CBP are classified into the same protein family. With a molecular weight of 300 kDa, p300 has a fairly high homology to CBP and is highly conserved among mammals. There are many functions of p300, including various physiological processes such as cell cycle regulation and cell differentiation. As a histone acetyltransferase (HAT), p300 can acetylate four core histones.
- HAT histone acetyltransferase
- p300 catalyzes the acetyl group in acetyl-CoA and transfers it to the ⁇ -amino group of the N-terminal lysine residue of histone, neutralizing the positive charge above and weakening the interaction between DNA and histone, thereby opening
- the highly ordered chromatin structure facilitates the binding of transcription factors and RNA polymerase II to DNA, thereby facilitating transcription.
- CTPB as a small molecule compound, is an activator of the p300-CBP protein family and acts on p300.
- ECM extracellular matrix
- Fibroblast fibroblasts are cells that synthesize extracellular matrix and collagen, and play an important role in animal wound healing.
- the first object of the present invention is the use of the p300 activator CTPB to increase the expression of collagen Col17A1;
- the use of the p300 activator CTPB in the preparation of a drug for treating hair loss is preferred.
- the use of the p300 activator CTPB in the preparation of a medicament for promoting hair hyperplasia is preferred.
- the molecular formula of CTPB of p300 activator is
- Another object of the present invention is to disclose a preparation which is a solution containing CTPB, PEG-400, ethanol, and water, wherein the concentration of CTPB and its derivatives is 50 nM-4 ⁇ M.
- the concentration of CTPB and its derivatives in the above formulation is 50 nM-4 ⁇ M.
- a final object of the present invention is the use of the p300 activator CTPB in the preparation of hair restorers and / or treatments for hair loss.
- CTPB is a p300 protein activator in the prior art, which can promote the proliferation of nerve cells to improve Parkinson's disease (PD).
- the inventors of the present invention have found that CT300, a p300 activator, can increase the expression of collagen Col17A1.
- collagen Col17A1 is digested by proteases, which promotes hair follicle stem cells to apoptosis, and at the same time enhances the inflammatory response, which eventually leads to hair loss. Histone acetylation is an important part of epigenetic research.
- P300 regulates the transcriptional expression of genes by binding with acetylated lysine, and is a driving factor for hair follicle stem cell differentiation, while the small molecule compound CTPB is its activator.
- CTPB small molecule compound for treating hair loss or promoting hair hyperplasia, which can be used for the early prevention and treatment of the disease. At the same time, it can also be used as a hair growth agent or hair loss treatment in shampoo products.
- Figure 1 The results of the action of the super enhancer related to the Col17A1 gene on hair follicle stem cells, indicating that the super enhancer of COL17A1 is found only in hair follicle stem cells;
- FIG. 3 is a comparison diagram of CTPB applied to the skin for treatment of hair loss or promotion of hair growth in Example 2;
- Fig. 5 Example 2 qRT-PCR results of CTPB on Col17A1 expression level in skin of C57 mice at 20 months.
- the mouse in the test example of the present invention is a C57BL / 6J mouse, which is from The Jackson Laboratory in the United States. Other raw materials are commercially available unless otherwise specified.
- Example 1 The effect of CTPB (Santa Cruz, USA) on the expression of Col17A gene in fibroblast 10T1 / 2 was investigated.
- the expression level of Col17A1 gene also decreases during skin aging in mice. The results are shown in Figure 2.
- 10T 1/2 cells CCL-226, ATCC, USA
- GAPDH is a universal internal reference, not a test 200nM CTPB increases the expression of Col17A1, and the effect of CTPB is positively related to its increase in Col17A1, indicating that CTPB plays an important role in 10T1 / 2 cells.
- the reason for choosing CTPB for hair loss is super enhancement of p300 and Col17A1. Son is the target of treatment.
- GAPDH is widely used as an internal reference for qRT-PCR cDNA standardization.
- the target cDNA content of each sample is divided by the GAPDH content of this sample to obtain the relative content of the target cDNA of each sample. Compare. The same results are shown in Figure 4.
- the qRT-PCR results showed that CTPB at 200nM and higher concentrations significantly increased the expression of Col17A1 after 16 hours, while CTPB increased the expression of Col17A1 in a gradient-dependent manner, of which 200nM inhibited JQ1. It is sufficiently significant that its role in activating p300 is positively correlated with Col17A1 expression, confirming the role of epigenetic regulatory protein p300 in 10T1 / 2 cells.
- Example 2 The effect of exogenously added CTPB on treating hair loss or promoting hair hyperplasia was studied.
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- Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Pharmacology & Pharmacy (AREA)
- Chemical & Material Sciences (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Dermatology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Epidemiology (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Organic Chemistry (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Cosmetics (AREA)
Abstract
L'invention concerne une application d'un CTPB activateur de p300 et d'une préparation de celui-ci dans la préparation d'un régénérateur de cheveux et/ou d'un agent de traitement de la perte des cheveux et pour la préparation d'un médicament pour le traitement de la perte des cheveux/la stimulation de la régénération des cheveux.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201811068676.9A CN109045001A (zh) | 2018-09-13 | 2018-09-13 | p300活化剂CTPB及其衍生物在提高胶原蛋白Col17A1表达的用途 |
CN201811068676.9 | 2018-09-13 |
Publications (1)
Publication Number | Publication Date |
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WO2020052629A1 true WO2020052629A1 (fr) | 2020-03-19 |
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PCT/CN2019/105587 WO2020052629A1 (fr) | 2018-09-13 | 2019-09-12 | Application d'un ctpb activateur de p300 et d'un dérivé de celui-ci pour améliorer l'expression du collagène col17a1 |
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CN (1) | CN109045001A (fr) |
WO (1) | WO2020052629A1 (fr) |
Families Citing this family (2)
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CN109045001A (zh) * | 2018-09-13 | 2018-12-21 | 潘治忠 | p300活化剂CTPB及其衍生物在提高胶原蛋白Col17A1表达的用途 |
WO2020196801A1 (fr) * | 2019-03-27 | 2020-10-01 | 国立大学法人 東京医科歯科大学 | Composition pour la peau |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004053140A2 (fr) * | 2002-12-12 | 2004-06-24 | Jawaharlal Nehru Centre For Advanced Scientific Research | Modulateurs (inhibiteurs/activateurs) d'histone acetyltransferases |
US20070148228A1 (en) * | 1999-02-22 | 2007-06-28 | Merrion Research I Limited | Solid oral dosage form containing an enhancer |
US20070292512A1 (en) * | 2006-06-09 | 2007-12-20 | Merrion Research Ii Limited | Solid Oral Dosage Form Containing an Enhancer |
EP2982745A1 (fr) * | 2014-08-06 | 2016-02-10 | Johann Wolfgang Goethe-Universität, Frankfurt am Main | Procédé d'expansion de cellules immunitaires |
CN109045001A (zh) * | 2018-09-13 | 2018-12-21 | 潘治忠 | p300活化剂CTPB及其衍生物在提高胶原蛋白Col17A1表达的用途 |
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2018
- 2018-09-13 CN CN201811068676.9A patent/CN109045001A/zh active Pending
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2019
- 2019-09-12 WO PCT/CN2019/105587 patent/WO2020052629A1/fr active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070148228A1 (en) * | 1999-02-22 | 2007-06-28 | Merrion Research I Limited | Solid oral dosage form containing an enhancer |
WO2004053140A2 (fr) * | 2002-12-12 | 2004-06-24 | Jawaharlal Nehru Centre For Advanced Scientific Research | Modulateurs (inhibiteurs/activateurs) d'histone acetyltransferases |
US20070292512A1 (en) * | 2006-06-09 | 2007-12-20 | Merrion Research Ii Limited | Solid Oral Dosage Form Containing an Enhancer |
EP2982745A1 (fr) * | 2014-08-06 | 2016-02-10 | Johann Wolfgang Goethe-Universität, Frankfurt am Main | Procédé d'expansion de cellules immunitaires |
CN109045001A (zh) * | 2018-09-13 | 2018-12-21 | 潘治忠 | p300活化剂CTPB及其衍生物在提高胶原蛋白Col17A1表达的用途 |
Non-Patent Citations (3)
Title |
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DEVIPRIYA B: "Charge density distribution and the electrostatic moments of CTPB in the active site of p300 enzyme: A DFT and charge density study", JOURNAL OF THEORETICAL BIOLOGY, 31 December 2013 (2013-12-31), XP028699767, ISSN: 0022-5193 * |
KARANAM BALASUBRAMANYAM: "Small Molecule Modulators of Histone Acetyltransferase p300", JOURNAL OF BIOLOGICAL CHEMISTRY, vol. 278, no. 21, 23 May 2003 (2003-05-23) - 31 December 2003 (2003-12-31), pages 19134 - 19140, XP008123444, ISSN: 0021-9258 * |
MANTELINGU K: "Activation of p300 Histone Acetyltransferase by Small Mo- lecules Altering Enzyme Structure: Probed by Surface-Enhanced Raman Spectro- scopy", JOURNAL OF PHYSICAL CHEMISTRY B, vol. 111, no. 17, 7 April 2007 (2007-04-07) - 3 May 2007 (2007-05-03), pages 4527 - 4534, XP055075158, ISSN: 1520-6106 * |
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