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    • 1. 发明申请
    • ANTIMICROBIAL HEXAPEPTIDES
    • 抗生素下一代
    • WO2006086321A3
    • 2007-02-22
    • PCT/US2006004147
    • 2006-02-07
    • HELIX BIOMEDIX INCFALLA TIMOTHY JZHANG LIJUANHARRIS SCOTT M
    • FALLA TIMOTHY JZHANG LIJUANHARRIS SCOTT M
    • C07K7/06A61K38/08A61P31/00
    • C07K7/06A61K38/00
    • The invention encompasses hexapeptides consisting of alternating hydrophobic residues (B) at positions 2, 4, and 6, hydrophilic, hydrophilic, charged residues (X) at positions 1 and 3, and a naphthylalanine (NaI), an aliphatic or aromatic residue (O) at position five, represented generally by the formula XBXBOB, which exhibit antimicrobial activity against infections caused by a variety of pathogens. These pathogens may include gram positive or negative bacteria, acid-fast bacteria such a mycobacteria, parasites, dermatophytes, or fungal pathogens. Typical fungal pathogens include Candida albicans and typical dermatophytes include Trichophyton rubrum and Trichophyton mentagrophytes. The hexapeptides of the present invention exhibit antifungal activity, antibacterial activity, desirable stability, and lack toxicity to the mammal receiving treatment.
    • 本发明包括由位置2,4和6处的交替的疏水性残基(B),位置1和3的亲水性,亲水性,带电荷的残基(X)和萘丙氨酸(NaI),脂族或芳族残基(O ),通常由式XBXBOB表示,其表现出针对由各种病原体引起的感染的抗微生物活性。 这些病原体可包括革兰氏阳性或阴性细菌,耐酸细菌如分枝杆菌,寄生虫,皮肤真菌或真菌病原体。 典型的真菌病原体包括白色念珠菌和典型的皮肤癣菌,包括红色毛癣菌和引发毛癣菌。 本发明的六肽对接受治疗的哺乳动物具有抗真菌活性,抗菌活性,所需的稳定性和缺乏毒性。
    • 3. 发明申请
    • PEPTIDE PROTECTION AGAINST ULTRAVIOLET LIGHT TOXICITY
    • 抗紫外线防紫外线防毒素
    • WO2011063090A2
    • 2011-05-26
    • PCT/US2010057177
    • 2010-11-18
    • HELIX BIOMEDIX INCZHANG LIJUANFALLA TIMOTHY J
    • ZHANG LIJUANFALLA TIMOTHY J
    • A61K38/08
    • A61K38/08A61K8/64A61K9/0014A61Q7/00A61Q19/004A61Q19/08
    • Short peptides having biological and therapeutic activity are disclosed. Specifically, the activity of the disclosed peptides is directed to reducing or protecting against mutagen-induced cellular/tissue toxicity (i.e., chemopreventive). For example, the disclosed peptides protect against skin toxicity and/or mutagenesis that occurs from ultraviolet (UV) light exposure. The disclosed peptides also block the activation of certain cell cycle regulatory proteins such as Chk2. An example of such a peptide is Ser-Leu-Tyr-Gln-Ser (SEQ ID NO: 10). The disclosed peptides are also useful for methods of reducing or protecting against cellular toxicity and mutation accumulation that would otherwise occur following mutagen exposure. One such method is drawn to applying a peptide to the skin to prevent or reduce mutagenic damage resulting from UV light (e.g., sunlight) exposure.
    • 公开了具有生物和治疗活性的短肽。 具体地,所公开的肽的活性是针对减少或防止诱变剂诱导的细胞/组织毒性(即,化学预防)。 例如,所公开的肽可防止由紫外线(UV)曝光引起的皮肤毒性和/或诱变。 所公开的肽还阻断某些细胞周期调节蛋白如Chk2的活化。 这样的肽的实例是Ser-Leu-Tyr-Gln-Ser(SEQ ID NO:10)。 所公开的肽也可用于降低或防止细胞毒性和突变积累的方法,否则在诱变剂暴露后会发生。 绘制一种这样的方法以向皮肤施加肽以防止或减少由UV光(例如阳光)暴露引起的诱变性损伤。