Abstract:
Peptides having four to six amino acid residues are disclosed that possess biological activity. These peptides constitute short fragments of the peptide HB-107 (MPKEKVFLKIEKMGRNIRN), which itself is a fragment of the antimicrobial protein cecropin B, and exhibit cell stimulatory and migratory properties. The inventive peptides comprise four to six contiguous amino acid residues located between position 11 and 16 of HB107 (MPKEKVFLKIEKMGRNIRN), namely EKMGRN. The disclosed peptides comprise a useful agent for the medical treatment of injury to the skin, such as from diabetic ulcers. The peptides also are effective in preventing and reversing skin surface damage resulting from various environmental insults. Importantly, the therapeutic effects of the peptides manifest at concentrations equal to or greater than those of peptide HB-107, and thus represent a less expensive, more versatile means for developing effective therapies. Methods for the production and use of these peptides are also disclosed.
Abstract:
The invention relates to small molecules having biological and therapeutic activity. Particularly, the invention relates to small molecules having lipolytic and anti-adipogenic activity. Two examples of such molecules are 4-methyl-2-(octanoylamino) pentanoic acid and N-isopentyloctanamide. The invention further relates to methods of preventing or treating skin conditions such as cellulite using small molecules having lipolytic and anti-adipogenic activity.
Abstract:
Advanced glycation end products (AGEs) represent a non-enzymatic post-translational protein modification. AGEs are very stable and the accumulation over time can be used as markers of carbonyl stress which are responsible for the malfunction of bioactive macromolecules in the body. Disclosed herein are a series of short peptides for blocking activity of advanced glycation end products (AGEs), the peptide being derived from a V-region of an sRAGE protein, wherein the V-region is given by SEQ ID NO:61. These peptides effectively inhibit the progress of a Maillard reaction, blocking the AGEs and inhibiting dicarbonyl induced cell apoptosis and death. The peptides can be used as, for example, an anti-glycation agent, a skin anti-aging agent, or an anti-diabetic complication agent.
Abstract translation:晚期糖基化终产物(AGEs)代表非酶促翻译后蛋白质修饰。 AGEs非常稳定,随着时间的推移累积可以用作羰基应激的标记,这是造成体内生物活性大分子故障的原因。 本文公开了用于阻断晚期糖基化终产物(AGE)活性的一系列短肽,所述肽源自sRAGE蛋白的V区,其中V区由SEQ ID NO:61给出。 这些肽有效抑制美拉德反应的进展,阻断AGEs并抑制二羰基诱导的细胞凋亡和死亡。 这些肽可以用作例如抗糖化剂,皮肤抗衰老剂或抗糖尿病并发症剂。 p>
Abstract:
Peptides having four to fourteen residues are disclosed that possess biological activity. These peptides constitute short fragments of the peptide HB-107 (SEQ ID NO:1), which itself is a fragment of the antimicrobial protein cecropin B, and exhibit cell stimulatory, migratory and anti-inflammatory properties. As keratinocytes are especially sensitive to these effects, the disclosed peptides comprise a useful agent for the medical treatment of injury to the skin, such as from diabetic ulcers. The peptides also are effective in preventing and reversing skin surface damage resulting from various environmental insults. Importantly, the therapeutic effects of the peptides manifest at concentrations equal to or greater than those of peptide HB-107, and thus represent a less expensive, more versatile means for developing effective therapies. Methods for the production and use of these peptides are also disclosed.
Abstract translation:披露具有四至十四个残基的肽具有生物活性。 这些肽构成肽HB-107(SEQ ID NO:1)的短片段,其本身是抗微生物蛋白质天蚕素B的片段,并且具有细胞刺激性,迁移性和抗炎性质。 由于角质形成细胞对这些作用特别敏感,所公开的肽包括用于治疗皮肤损伤(例如糖尿病性溃疡)的有用试剂。 这些肽也有效地预防和逆转由各种环境污染引起的皮肤表面损伤。 重要的是,肽的治疗效果以等于或大于肽HB-107的浓度表现,因此代表开发有效疗法的较便宜,更通用的手段。 还公开了生产和使用这些肽的方法。
Abstract:
Disclosed herein is a composition including a peptide consisting of the sequence of SEQ ID NO: 1 for increasing the production of melanin. The present disclosure provides methods and formulations for the treatment of pigmentation disorders or conditions. In some embodiments, provided herein are compositions and methods for sunless tanning. In other embodiments, the present disclosure is directed to such compositions that are formulated for use as pharmaceuticals and cosmetic products, and to medical devices comprising the disclosed compositions.
Abstract:
Disclosed herein is a composition including a peptide consisting of the sequence of SEQ ID NO: 1 for increasing the production of melanin. The present disclosure provides methods and formulations for the treatment of pigmentation disorders or conditions. In some embodiments, provided herein are compositions and methods for sunless tanning. In other embodiments, the present disclosure is directed to such compositions that are formulated for use as pharmaceuticals and cosmetic products, and to medical devices comprising the disclosed compositions.
Abstract:
Tetrapeptides consisting of (I or V)-X1-K-X2, where X1 can be selected from E, Q or K, and X2 can be selected from M, F, I, W, or V, exhibit diverse bioactivities. They are multi-functional effector molecules to stimulate keratinocytes migration; neutralize the proinflammatory effect of bacterial cell wall components such as lipoteichoic acids of the Gram-positive S. aureus; and induce angiogenesis in cultured human umbilical vein endothelial cells. The downregulation of pro-inflammatory condition was also demonstrated using SOR-300-FT psoriasis skin model for representative peptide. The bioactivity was also supported by gene profiling study upon treatment of normal skin tissues using EPIDERM TM skin substitutes. The inventive peptides with diverse bioactivities are useful for treating various skin conditions including, but not limited to, acute or chronic wounds, striae distensae, aging skin, hair control, inflammatory skins such as psoriasis, atopic dermatitis and rosacea and for unwanted hair removal or for conditions such as removal of skin tags.
Abstract:
Disclosed are peptides having biological and therapeutic activity. Particularly disclosed are lipidated di- or tri- peptides analogs of KPV or KdPT that exhibit antimicrobial activity. In particular, the peptides of this invention provide enhanced anti-microbial activity over the base tri -peptides, lysine -proline- valine and lysine-d-proline-tyrosine. The disclosed peptides have the general formula of C12-18 lipid— KXZ-NH 2 i wherein K is lysine; X is proline, d-proline, histidine or arginine; Z is optional and if present Z is valine, threonine, alanine or leucine; and the terminal COOH is NH 2 amidated. The C12-18 lipid is preferably the lipid moiety of lauric acid (C12), myristic acid (C14), pentadecanoic acid (C15), palmitic acid (C16), or stearic acid (C18). The invention is further related to methods of using of these peptides to treat various insults, inflammations or bacterial infections affecting the skin and other related mucosal body surfaces such as the oral cavity.
Abstract:
Advanced glycation end products (AGEs) represent a non-enzymatic post-translational protein modification. AGEs are very stable and the accumulation over time can be used as markers of carbonyl stress which are responsible for the malfunction of bioactive macromolecules in the body. Disclosed herein are a series of short peptides for blocking activity of advanced glycation end products (AGEs), the peptide being derived from a V-region of an sRAGE protein, wherein the V-region is given by SEQ ID NO:61. These peptides effectively inhibit the progress of a Maillard reaction, blocking the AGEs and inhibiting dicarbonyl induced cell apoptosis and death. The peptides can be used as, for example, an anti-glycation agent, a skin anti-aging agent, or an anti-diabetic complication agent.
Abstract:
The disclosed invention provides tetrapeptides with the amino acid sequence proline- glutamine-glutamate-X (P-Q-E-X), where X can be either lysine (K) or isoleucine (I). These tetrapeptides inhibit ultraviolet light (UV)-induced expression of the pro-inflammatory cytokine interleukin-6 (IL-6) by skin epithelial cells and fibroblasts. Furthermore, the tetrapeptides repress the upregulation of matrix metalloproteinase-1 (MMP-1) by skin fibroblasts induced by either direct exposure to UV rays or treatment with media conditioned by UV-treated keratinocytes. The small size and bio-activity of the tetrapeptides render them suitable for use in therapies directed to inflammatory skin disorders and as active ingredients in skin care products.