摘要:
A system has been constructed that recapitulate the features of a capillary bed through normal human tissue. The system facilitates perfusion of three-dimensional (3D) cell monocultures and heterotypic cell co-cultures at the length scale of the capillary bed. A major feature is that the system can be utilized within a “multiwell plate” format amenable to high-throughput assays compatible with the type of robotics commonly used in pharmaceutical development. The system provides a means to conduct assays for toxicology and metabolism and as a model for human diseases such as hepatic diseases, including hepatitis, exposure-related pathologies, and cancer. Cancer applications include primary liver cancer as well as metastases. The system can also be used as a means of testing gene therapy approaches for treating disease and inborn genetic defects.
摘要:
A system has been constructed that recapitulate the features of a capillary bed through normal human tissue. The system facilitates perfusion of three-dimensional (3D) cell monocultures and heterotypic cell co-cultures at the length scale of the capillary bed. A major feature is that the system can be utilized within a “multiwell plate” format amenable to high-throughput assays compatible with the type of robotics commonly used in pharmaceutical development. The system provides a means to conduct assays for toxicology and metabolism and as a model for human diseases such as hepatic diseases, including hepatitis, exposure-related pathologies, and cancer. Cancer applications include primary liver cancer as well as metastases. The system can also be used as a means of testing gene therapy approaches for treating disease and inborn genetic defects.
摘要:
Disclosed are peptides having activity against receptor CXCR3 are disclosed that exhibit activity in preventing the formation of new vessels and activity in mediating the dissociation of newly-formed vessels and resolving of wounds in the later stages of wound healing. Preferred peptides are derived from the α-helix portion IP-10 (CXCL10) or from IP-9 (CXCL11), are nontoxic, and smaller than naturally occurring peptides, making them useful in therapies against diseases or disease states marked by unwanted angiogenesis, including tumorogenic diseases such as cancers, and in healing of chronic wounds.
摘要:
A composition includes at least one biologically active agent covalently attached to a first polymerizing molecule that is adapted to undergo a free radical polymerization. The first polymerizing molecule retains the ability to undergo free radical polymerization after attachment of the bioactive agent thereto. The first polymerizing molecule is preferably biocompatible. The polymerizing molecule can, for example. be dihydroxyphenyl-L-alanine (DOPA) or tyrosine. The composition can also include a second component synthesized by reacting at least one core molecule having a plurality of reactive hydrogen groups with at least one multi-isocyanate functional molecule to create a conjugate including terminal isocyanate groups. The conjugate molecule is reacted with a second polymerizing molecule that is adapted to undergo a free radical polymerization. The second polymerizing molecule includes a reactive hydrogen to react with the isocyanate groups of the conjugate. The second polymerizing molecule retains the ability to undergo the free radical polymerization after reaction with the conjugate. In several embodiments, the first polymerizing molecule and the second polymerizing molecule are the same and dihydroxyphenyl-L-alanine (DOPA) or tyrosine.
摘要:
Disclosed are peptides having activity against receptor CXCR3 are disclosed that exhibit activity in preventing the formation of new vessels and activity in mediating the dissociation of newly-formed vessels and resolving of wounds in the later stages of wound healing. Preferred peptides are derived from the α-helix portion IP-10 (CXCL10) or from IP-9 (CXCL11), are nontoxic, and smaller than naturally occurring peptides, making them useful in therapies against diseases or disease states marked by unwanted angiogenesis, including tumorogenic diseases such as cancers, and in healing of chronic wounds.
摘要:
The present invention provides a method of inhibiting tumor progression in an individual in need of such treatment, comprising the step of administering to said individual a pharmacologically effective dose of a phospholipase C inhibitor. Also provided is a method of inhibiting metastasis in an individual in need of such treatment, comprising the step of administering to said individual a pharmacologically effective dose of a phospholipase C inhibitor. Further provided are pharmaceutical compositions, comprising a phospholipase C inhibitor of tumor invasiveness and metastasis and a pharmaceutically acceptable carrier and a pharmaceutical composition, comprising a phospholipase C inhibitor of tumor invasiveness and metastasis, a antineoplastic agent and a pharmaceutically acceptable carrier.
摘要:
A gas resonance device (101) comprises a pulsed combustor (102) located in the middle of a substantially spherical resonance chamber (103). Such a thermally driven gas resonance device has the advantage that the wall friction losses are eliminated altogether. A thermally driven gas resonance device (1, 101) may be combined with a pressure swing gas separator (16, 108), the oscillating gas in the gas resonance device (1, 101) being used to provide the pressure changes required to drive the pressure swing gas separator. Alternatively a thermally driven gas resonance device (1, 101) is combined with a heat pump (19, 120) with the oscillating gas in the gas resonance device (1, 101) being used to provide the power to operate the heat pump. The thermally driven gas resonance device (1, 101) may also drive an electrical generator (121, 122) to provide a combined heat and power device.