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    • 5. 发明授权
    • Comb copolymers for regulating cell-surface interactions
    • 用于调节细胞表面相互作用的梳状共聚物
    • US06399700B2
    • 2002-06-04
    • US09817887
    • 2001-03-26
    • Anne M. MayesLinda G. GriffithDarrell J. IrvinePallab BanerjeeTerry D. Johnson
    • Anne M. MayesLinda G. GriffithDarrell J. IrvinePallab BanerjeeTerry D. Johnson
    • C08J524
    • A61K47/48A61K47/50A61K47/56A61K47/641C08G81/00C08G81/024C08J5/24
    • Synthetic comb copolymers which elicit controlled cellular response, methods of applying these polymers to various surfaces, and methods of using the polymers for modifying biomaterial surfaces, in tissue engineering applications and as drug delivery devices are provided. The comb copolymers are comprised of hydrophobic polymer backbones and hydrophilic, non-cell binding side chains which can be end-capped with cell-signaling ligands that guide cellular response. By mixing non-cell binding combs with ligand-bearing combs, the surface concentration and spatial distribution of one or more types of ligands, including adhesion peptides and growth factors, can be tuned on a surface to achieve desired cellular response. In one embodiment, the combs are used as stabilizing agents for dispersion polymerization of latexes. The comb-stabilized latexes can be applied to substrates by standard coating operations to create a bioregulating surface, or used as drug delivery agents. In another embodiment, the combs can be blended in small quantities to a hydrophobic matrix polymer and processed to affect the surface segregation of the comb. The comb copolymers are formed in one embodiment by providing a biodegradable polyester backbone that includes reactive groups, and reacting the reactive groups in the backbone with reactive chain ends on a low molecular weight hydrophilic polymer. In another embodiment, non-biodegradable comb copolymers are formed by free radical synthesis of a hydrophobic monomer and a hydrophilic macromonomer. In all of the above embodiments, a portion of the hydrophilic polymer side chains can be covalently coupled to cell-signaling ligands such as adhesion peptides or growth factors to control cellular response.
    • 提供引起受控细胞反应的合成梳状共聚物,将这些聚合物应用于各种表面的方法,以及使用聚合物改性生物材料表面的方法,在组织工程应用中以及作为药物递送装置。 梳状共聚物由疏水性聚合物主链和亲水性非细胞结合侧链组成,其可以用引导细胞反应的细胞信号传导配体封端。 通过将非细胞结合梳与含配体的梳子混合,可以在表面上调节一种或多种类型的配体(包括粘附肽和生长因子)的表面浓度和空间分布,以实现所需的细胞反应。 在一个实施方案中,梳子用作胶乳分散聚合的稳定剂。 梳状稳定的胶乳可以通过标准涂布操作施加到基底上以产生生物调节表面,或用作药物递送剂。 在另一个实施方案中,梳子可以少量混合到疏水性基质聚合物中并进行处理以影响梳子的表面分离。 梳状共聚物在一个实施方案中通过提供包含反应性基团的可生物降解的聚酯主链,并使主链中的反应性基团与低分子量亲水聚合物上的反应性链端端反应形成。 在另一个实施方案中,通过自由基合成疏水性单体和亲水性大分子单体形成不可生物降解的梳状共聚物。 在所有上述实施方案中,一部分亲水性聚合物侧链可共价偶联至细胞信号传导配体如粘附肽或生长因子以控制细胞反应。
    • 6. 发明授权
    • Comb copolymers for regulating cell-surface interactions
    • 用于调节细胞表面相互作用的梳状共聚物
    • US06207749B1
    • 2001-03-27
    • US09634095
    • 2000-08-08
    • Anne M. MayesLinda G. GriffithDarrell J. IrvinePallab BanerjeeTerry D. Johnson
    • Anne M. MayesLinda G. GriffithDarrell J. IrvinePallab BanerjeeTerry D. Johnson
    • C08J524
    • A61K47/48A61K47/50A61K47/56A61K47/641C08G81/00C08G81/024C08J5/24
    • Synthetic comb copolymers which elicit controlled cellular response, methods of applying these polymers to various surfaces, and methods of using the polymers for modifying biomaterial surfaces, in tissue engineering applications and as drug delivery devices are provided. The comb copolymers are comprised of hydrophobic polymer backbones and hydrophilic, non-cell binding side chains which can be end-capped with cell-signaling ligands that guide cellular response. By mixing non-cell binding combs with ligand-bearing combs, the surface concentration and spatial distribution of one or more types of ligands, including adhesion peptides and growth factors, can be tuned on a surface to achieve desired cellular response. In one embodiment, the combs are used as stabilizing agents for dispersion polymerization of latexes. The comb-stabilized latexes can be applied to substrates by standard coating operations to create a bioregulating surface, or used as drug delivery agents. In another embodiment, the combs can be blended in small quantities to a hydrophobic matrix polymer and processed to affect the surface segregation of the comb. The comb copolymers are formed in one embodiment by providing a biodegradable polyester backbone that includes reactive groups, and reacting the reactive groups in the backbone with reactive chain ends on a low molecular weight hydrophilic polymer. In another embodiment, non-biodegradable comb copolymers are formed by free radical synthesis of a hydrophobic monomer and a hydrophilic macromonomer. In all of the above embodiments, a portion of the hydrophilic polymer side chains can be covalently coupled to cell-signaling ligands such as adhesion peptides or growth factors to control cellular response.
    • 提供引起受控细胞反应的合成梳状共聚物,将这些聚合物应用于各种表面的方法,以及使用聚合物改性生物材料表面的方法,在组织工程应用中以及作为药物递送装置。 梳状共聚物由疏水性聚合物主链和亲水性非细胞结合侧链组成,其可以用引导细胞反应的细胞信号传导配体封端。 通过将非细胞结合梳与含配体的梳子混合,可以在表面上调节一种或多种类型的配体(包括粘附肽和生长因子)的表面浓度和空间分布,以实现所需的细胞反应。 在一个实施方案中,梳子用作胶乳分散聚合的稳定剂。 梳状稳定的胶乳可以通过标准涂布操作施加到基底上以产生生物调节表面,或用作药物递送剂。 在另一个实施方案中,梳子可以少量混合到疏水性基质聚合物中并进行处理以影响梳子的表面分离。 梳状共聚物在一个实施方案中通过提供包含反应性基团的可生物降解的聚酯主链,并使主链中的反应性基团与低分子量亲水聚合物上的反应性链端端反应形成。 在另一个实施方案中,通过自由基合成疏水性单体和亲水性大分子单体形成不可生物降解的梳状共聚物。 在所有上述实施方案中,一部分亲水性聚合物侧链可共价偶联至细胞信号传导配体如粘附肽或生长因子以控制细胞反应。
    • 7. 发明授权
    • Comb polymers for regulating cell surface interactions
    • 梳状聚合物用于调节细胞表面相互作用
    • US6150459A
    • 2000-11-21
    • US290140
    • 1999-04-13
    • Anne M. MayesLinda G. GriffithDarrell J. IrvinePallab BanerjeeTerry D. Johnson
    • Anne M. MayesLinda G. GriffithDarrell J. IrvinePallab BanerjeeTerry D. Johnson
    • A61L27/00A61K47/48A61L33/00C08G81/00C08G81/02C08G85/00
    • C08G81/024A61K47/48169A61K47/48253C08G81/00
    • Synthetic comb copolymers which elicit controlled cellular response, methods of applying these polymers to various surfaces, and methods of using the polymers for modifying biomaterial surfaces, in tissue engineering applications and as drug delivery devices are provided. The comb copolymers are comprised of hydrophobic polymer backbones and hydrophilic, non-cell binding side chains which can be end-capped with cell-signaling ligands that guide cellular response. By mixing non-cell binding combs with ligand-bearing combs, the surface concentration and spatial distribution of one or more types of ligands, including adhesion peptides and growth factors, can be tuned on a surface to achieve desired cellular response. In one embodiment, the combs are used as stabilizing agents for dispersion polymerization of latexes. The comb-stabilized latexes can be applied to substrates by standard coating operations to create a bioregulating surface, or used as drug delivery agents. In another embodiment, the combs can be blended in small quantities to a hydrophobic matrix polymer and processed to affect the surface segregation of the comb. The comb copolymers are formed in one embodiment by providing a biodegradable polyester backbone that includes reactive groups, and reacting the reactive groups in the backbone with reactive chain ends on a low molecular weight hydrophilic polymer. In another embodiment, non-biodegradable comb copolymers are formed by free radical synthesis of a hydrophobic monomer and a hydrophilic macromonomer. In all of the above embodiments, a portion of the hydrophilic polymer side chains can be covalently coupled to cell-signaling ligands such as adhesion peptides or growth factors to control cellular response.
    • 提供引起受控细胞反应的合成梳状共聚物,将这些聚合物应用于各种表面的方法,以及使用聚合物改性生物材料表面的方法,在组织工程应用中以及作为药物递送装置。 梳状共聚物由疏水性聚合物主链和亲水性非细胞结合侧链组成,其可以用引导细胞反应的细胞信号传导配体封端。 通过将非细胞结合梳与含配体的梳子混合,可以在表面上调节一种或多种类型的配体(包括粘附肽和生长因子)的表面浓度和空间分布,以实现所需的细胞反应。 在一个实施方案中,梳子用作胶乳分散聚合的稳定剂。 梳状稳定的胶乳可以通过标准涂布操作施加到基底上以产生生物调节表面,或用作药物递送剂。 在另一个实施方案中,梳子可以少量混合到疏水性基质聚合物中并进行处理以影响梳子的表面分离。 梳状共聚物在一个实施方案中通过提供包含反应性基团的可生物降解的聚酯主链,并使主链中的反应性基团与低分子量亲水聚合物上的反应性链端端反应形成。 在另一个实施方案中,通过自由基合成疏水性单体和亲水性大分子单体形成不可生物降解的梳状共聚物。 在所有上述实施方案中,一部分亲水性聚合物侧链可共价偶联至细胞信号传导配体如粘附肽或生长因子以控制细胞反应。
    • 9. 发明授权
    • Compositions for detecting cell death and methods of use thereof
    • 用于检测细胞死亡的组合物及其使用方法
    • US08999661B2
    • 2015-04-07
    • US12511478
    • 2009-07-29
    • Andrew KungPallab Banerjee
    • Andrew KungPallab Banerjee
    • C12Q1/32G01N33/50C07K14/00C12N9/04
    • C12Q1/32G01N33/5011G01N2510/00
    • The invention provides compounds and methods of their use in the detection of apoptosis and necrosis both in vitro and in vivo. Also provided are compounds and methods of their use in selective delivery of agents to cells undergoing apoptosis or necrosis. The compounds and methods are based on conjugates formed with a dehydrogenase such as lactate dehydrogenase, alcohol dehydrogenase, aldehyde dehydrogenase, and malate dehydrogenase. The compounds and methods are useful in the diagnosis and treatment of conditions characterized by apoptosis, including cancer, cardiac disease, neurologic disease including stroke, and autoimmunity. The compounds and methods offer distinct advantages over corresponding compounds and methods based on Annexin V. Also provided are methods for screening for compounds that modulate, i.e., inhibit or promote, apoptosis.
    • 本发明提供了它们用于体外和体内检测凋亡和坏死的化合物和方法。 还提供了它们用于选择性递送药物至经历凋亡或坏死的细胞的化合物和方法。 化合物和方法基于与脱氢酶形成的缀合物,例如乳酸脱氢酶,醇脱氢酶,醛脱氢酶和苹果酸脱氢酶。 该化合物和方法可用于诊断和治疗特征为细胞凋亡的病症,包括癌症,心脏病,神经系统疾病,包括中风和自身免疫。 化合物和方法相对于基于膜联蛋白V的相应化合物和方法提供明显的优点。还提供了筛选调节,即抑制或促进凋亡的化合物的方法。