Cystine knot peptides binding to alpha IIb beta 3 integrins and methods of use
    1.
    发明授权
    Cystine knot peptides binding to alpha IIb beta 3 integrins and methods of use 有权
    结合αIIbβ3整联蛋白的胱氨酸结结合肽和使用方法

    公开(公告)号:US08778888B2

    公开(公告)日:2014-07-15

    申请号:US12938216

    申请日:2010-11-02

    IPC分类号: C07K14/00 A61K38/16 A61K38/36

    CPC分类号: C07K14/47 A61K38/00

    摘要: Disclosed are peptides having a cystine knot structural motif and comprising a sequence engineered for specificity against αIIbβ3 integrin, found on platelets, and a method of using the same in anti-thrombotic therapies. The present peptides utilize a cystine knot scaffold derived from modified agouti-related protein or agatoxin, An alternate library screening strategy was used to isolate variants of peptides that selectively bound to αIIbβ3 integrin or to both αIIbβ3 and αVβ3 integrins. Unique consensus sequences were identified within the identified peptides suggesting alternative molecular recognition events that dictate different integrin binding specificities. In addition, the engineered peptides prevented human platelet aggregation in a plasma-based assay and showed high binding affinity for αIIbβ3 integrin.

    摘要翻译: 公开了具有胱氨酸结结构基序的肽,并且包含在血小板上发现的针对αIIb和bgr3整联蛋白的特异性工程的序列,以及在抗血栓形成治疗中使用该序列的方法。 本发明的肽利用衍生自修饰的agouti相关蛋白或恶性毒素的胱氨酸结支架。使用替代文库筛选策略来分离选择性结合αIIb和bgr3整合素或αIIb和bgr 3和αV和bgr 3整合素的肽的变体。 在鉴定的肽中鉴定出独特的共有序列,表明替代的分子识别事件决定了不同的整联蛋白结合特异性。 此外,工程化肽可防止基于血浆的测定中的人血小板聚集,并显示出对αIIb和bgr3整合素的高结合亲和力。

    CYSTINE KNOT PEPTIDES BINDING TO ALPHA IIb BETA 3 INTEGRINS AND METHODS OF USE
    2.
    发明申请
    CYSTINE KNOT PEPTIDES BINDING TO ALPHA IIb BETA 3 INTEGRINS AND METHODS OF USE 有权
    CYSTINE KNOT PEPDDES与ALPHA结合IIb BETA 3 INTEGRINS AND METHODS OF USE

    公开(公告)号:US20110136740A1

    公开(公告)日:2011-06-09

    申请号:US12938216

    申请日:2010-11-02

    CPC分类号: C07K14/47 A61K38/00

    摘要: Disclosed are peptides having a cystine knot structural motif and comprising a sequence engineered for specificity against αIIbβ3 integrin, found on platelets, and a method of using the same in anti-thrombotic therapies. The present peptides utilize a cystine knot scaffold derived from modified agouti-related protein or agatoxin, An alternate library screening strategy was used to isolate variants of peptides that selectively bound to αIIbβ3 integrin or to both αIIbβ3 and αVβ3 integrins. Unique consensus sequences were identified within the identified peptides suggesting alternative molecular recognition events that dictate different integrin binding specificities. In addition, the engineered peptides prevented human platelet aggregation in a plasma-based assay and showed high binding affinity for αIIbβ3 integrin.

    摘要翻译: 公开了具有胱氨酸结结构基序的肽,并且包含在血小板上发现的针对αIIb和bgr3整联蛋白的特异性工程的序列,以及在抗血栓形成治疗中使用该序列的方法。 本发明的肽利用衍生自修饰的agouti相关蛋白或恶性毒素的胱氨酸结支架。使用替代文库筛选策略来分离选择性结合αIIb和bgr3整合素或αIIb和bgr 3和αV和bgr 3整合素的肽的变体。 在鉴定的肽中鉴定出独特的共有序列,表明替代的分子识别事件决定了不同的整联蛋白结合特异性。 此外,工程化肽可防止基于血浆的测定中的人血小板聚集,并显示出对αIIb和bgr3整合素的高结合亲和力。

    FUSION PROTEINS COMPRISING AN ENGINEERED KNOTTIN PEPTIDE AND USES THEREOF
    3.
    发明申请
    FUSION PROTEINS COMPRISING AN ENGINEERED KNOTTIN PEPTIDE AND USES THEREOF 审中-公开
    包含工程化核酸肽的融合蛋白及其用途

    公开(公告)号:US20140073518A1

    公开(公告)日:2014-03-13

    申请号:US13883216

    申请日:2011-11-07

    摘要: The present disclosure presents a general approach to engineering existing protein-protein interactions through domain addition and evolution. The disclosure teaches the creation of novel fusion proteins that include knottin peptides where a portion of the knottin peptide is replaced with a sequence that has been created for binding to a particular target. Such fusion proteins can also be bispecific or multi specific in that they can bind to and/or inhibit two or more receptors or receptor ligands. Knottins may be fused with an existing ligand (or receptor) as a general platform for increasing the affinity of a ligand-receptor interaction or for creating a multi specific protein. In addition, the fusion proteins may comprise a knottin peptide fused to another protein where the other protein facilitates proper expression and folding of the knottin.

    摘要翻译: 本公开提出了通过域添加和进化来设计现有蛋白质 - 蛋白质相互作用的一般方法。 该公开内容教导了包括knottin肽的新型融合蛋白的产生,其中一部分knottin肽被用于结合特定靶标的序列替代。 这样的融合蛋白也可以是双特异性或多特异性的,因为它们可以结合和/或抑制两种或多种受体或受体配体。 Knottins可以与现有配体(或受体)融合,作为增加配体 - 受体相互作用或产生多特异性蛋白质的亲和力的通用平台。 此外,融合蛋白可以包含与另一种蛋白质融合的knottin肽,其中另一种蛋白促进knottin的正确表达和折叠。

    HEPATOCYTE GROWTH FACTOR FRAGMENTS THAT FUNCTION AS POTENT MET RECEPTOR AGONISTS AND ANTAGONISTS
    4.
    发明申请
    HEPATOCYTE GROWTH FACTOR FRAGMENTS THAT FUNCTION AS POTENT MET RECEPTOR AGONISTS AND ANTAGONISTS 有权
    HEPATOCYTE生长因子片段功能作为MET受体激动剂和拮抗剂

    公开(公告)号:US20130171068A1

    公开(公告)日:2013-07-04

    申请号:US13636053

    申请日:2011-03-21

    IPC分类号: C07K14/475

    CPC分类号: C07K14/4753 A61K38/00

    摘要: The NK1 fragment of hepatocyte growth factor (HGF) binds to and activates the Met receptor, a transmembrane receptor tyrosine kinase that plays a critical role in embryonic development and organ formation. The instant application discloses NK1 variant polypeptides which act as agonists or antagonists of HGF. Further disclosed are covalently linked NK1 variant polypeptides. Many of the disclosed variant polypeptides possess improved stability characteristics.

    摘要翻译: 肝细胞生长因子(HGF)的NK1片段结合并激活Met受体,一种跨膜受体酪氨酸激酶,在胚胎发育和器官形成中起关键作用。 本申请公开了作为HGF的激动剂或拮抗剂的NK1变体多肽。 进一步公开的是共价连接的NK1变体多肽。 所公开的变体多肽中的许多具有改善的稳定性特征。

    Hepatocyte growth factor fragments that function as potent met receptor agonists and antagonists
    8.
    发明授权
    Hepatocyte growth factor fragments that function as potent met receptor agonists and antagonists 有权
    作为有效的受体激动剂和拮抗剂起作用的肝细胞生长因子片段

    公开(公告)号:US09556248B2

    公开(公告)日:2017-01-31

    申请号:US13636053

    申请日:2011-03-21

    CPC分类号: C07K14/4753 A61K38/00

    摘要: The NK1 fragment of hepatocyte growth factor (HGF) binds to and activates the Met receptor, a transmembrane receptor tyrosine kinase that plays a critical role in embryonic development and organ formation. The instant application discloses NK1 variant polypeptides which act as agonists or antagonists of HGF. Further disclosed are covalently linked NK1 variant polypeptides. Many of the disclosed variant polypeptides possess improved stability characteristics.

    摘要翻译: 肝细胞生长因子(HGF)的NK1片段结合并激活Met受体,一种跨膜受体酪氨酸激酶,在胚胎发育和器官形成中起关键作用。 本申请公开了作为HGF的激动剂或拮抗剂的NK1变体多肽。 进一步公开的是共价连接的NK1变体多肽。 所公开的变体多肽中的许多具有改善的稳定性特征。

    Engineered integrin binding peptides
    9.
    发明授权
    Engineered integrin binding peptides 有权
    工程整合素结合肽

    公开(公告)号:US08536301B2

    公开(公告)日:2013-09-17

    申请号:US12418376

    申请日:2009-04-03

    IPC分类号: A61K38/04

    摘要: Engineered peptides that bind with high affinity (low equilibrium dissociation constant (Kd)) to the cell surface receptors of fibronectin (α5β1) or vitronectin (αvβ3 and αvβ5 integrins) are disclosed. These peptides are based on a molecular scaffold into which a subsequence containing the RGD integrin-binding motif has been inserted. The subsequence (RGD mimic) comprises about 9-13 amino acids, and the RGD contained within the subsequence can be flanked by a variety of amino acids, the sequence of which was determined by sequential rounds of selection (in vitro evolution). The molecular scaffold is preferably based on a knottin, e.g., EETI (Trypsin inhibitor 2 (Trypsin inhibitor II) (EETI-II) [Ecballium elaterium (Jumping cucumber)], AgRP (Agouti-related protein), and Agatoxin IVB, which peptides have a rigidly defined three-dimensional conformation. It is demonstrated that EETI tolerates mutations in other loops and that the present peptides may be used as imaging agents.

    摘要翻译: 公开了以高亲和力(低平衡解离常数(Kd))结合纤连蛋白(α5beta1)或玻连蛋白(alphavbeta3和alphavbeta5整联蛋白)的细胞表面受体的工程肽。 这些肽基于其中插入了含有RGD整联蛋白结合基序的子序列的分子支架。 子序列(RGD模拟物)包含约9-13个氨基酸,并且子序列内含有的RGD可以侧接多种氨基酸,其序列通过连续的选择轮次(体外进化)确定。 分子支架优选基于knottin,例如EETI(胰蛋白酶抑制剂2(胰蛋白酶抑制剂II)(EETI-II)[Ecballium elaterium(跳跃黄瓜)],AgRP(Agouti相关蛋白)和Agatoxin IVB,该肽 具有刚性定义的三维构象,证明EETI耐受其他环中的突变,并且本发明的肽可以用作成像剂。

    Sequential coupling of biomolecule layers to polymers
    10.
    发明申请
    Sequential coupling of biomolecule layers to polymers 审中-公开
    生物分子层与聚合物的顺序耦合

    公开(公告)号:US20090117166A1

    公开(公告)日:2009-05-07

    申请号:US12228884

    申请日:2008-08-15

    摘要: A bio-mimetic or bio-implantable material based on a sequential process of coupling biomolecule layers to a polymer layer is provided. In general, the material could be based on two or more biomolecule layers starting with one of the layers covalently linked to the polymer layer via cross-linkers and the other layers sequentially and covalently linked using cross-linkers to the previously added layer. The polymer layer could be a hydrogel or an interpenetrating polymer network hydrogel. The first layer of biomolecules could be a collagen type, fibronectin, laminin, extracellular matrix protein, or any combinations thereof. The second layer of biomolecules typically is a growth factor, protein or stimulant. The cross-linkers are either water soluble or insoluble bifunctional cross-linkers or azide-active-ester crosslinkers. The material and process as taught in this invention are useful in the field of tissue engineering and wound healing.

    摘要翻译: 提供了基于将生物分子层耦合到聚合物层的顺序方法的生物模拟或生物可植入材料。 通常,该材料可以基于两个或更多个生物分子层,其起始于通过交联剂共价连接到聚合物层的层之一,并且其它层使用交联剂顺序并共价连接到先前添加的层。 聚合物层可以是水凝胶或互穿聚合物网络水凝胶。 第一层生物分子可以是胶原型,纤连蛋白,层粘连蛋白,细胞外基质蛋白或其任何组合。 第二层生物分子通常是生长因子,蛋白质或兴奋剂。 交联剂是水溶性或不溶性双功能交联剂或叠氮化物 - 活性酯交联剂。 本发明教导的材料和方法可用于组织工程和伤口愈合领域。