Disclosed herein are muscle implants and methods of making muscle implants comprising one or more decellularized muscle matrices. The muscle matrices can, optionally, be joined to one or more decellularized dermal matrices. The muscle implants can be used to enhance muscle volume or to treat muscle damage, defects, and/or disorders. The decellularized muscle matrices in the implants retain at least some of the myofibers found in a muscle tissue prior to processing.

A prosthetic repair system includes a prosthesis for repairing a defect in a tissue or muscle wall. A material delivery device is provided for delivering a material, such as an adhesive material, to a surface of the prosthesis and/or to particular locations between the prosthesis and the tissue or muscle wall to attach the prosthesis to the wall. The delivery device may be coupled to the prosthesis and configured to distribute the material from one side of the prosthesis to an opposite side that is to face the defect. The delivery device may include a manifold and conduits for delivering the material from the manifold to one or more desired locations. The conduits may penetrate into and/or through the thickness of the prosthesis. After delivery and distribution of the material, the delivery device may be removed from the prosthesis and withdrawn from) a patient.

Articles and methods involving soft tissue repair implants comprising 2-hydroxybutyrate, 3-hydroxybutyrate, 4-hydroxybutyrate, and/or their conjugate acids are generally provided. The 2-hydroxybutyrate, 3-hydroxybutyrate, 4-hydroxybutyrate, and/or the conjugate acid(s) of 2-hydroxybutyrate, 3-hydroxybutyrate, and 4-hydroxybutyrate may be provided in a therapeutically-effective amount for reducing or preventing microbial infection.

The invention provides methods and compositions for making and using collagen-glycosaminoglycan three-dimensional scaffolds immobilized with biomolecules that are spatially and temporally patterned. The method comprises adding benzophenone to a collagen-glycosaminoglycan three dimensional scaffold in the dark; adding one or more biomolecules to one or more areas of the collagen-glycosaminoglycan three-dimensional scaffold (which can be done optionally in the dark or in the light); and exposing the collagen-2glycosaminoglycan three-dimensional scaffold to light at a wavelength of about 350 to about 365 nm.

Disclosed herein are methods of manufacturing injectable microgel scaffolds, including methods of producing, purifying and concentrating microgel particles therein. The microgel scaffolds of the present disclosure are useful for a wide range of applications, such as stabilizing an implanted medical device in an implant site in a subject. The microgel scaffolds are fluidic during application and annealed or crosslinked after application to the implant site in the subject. The microgel scaffolds may contain various therapeutic agents, including antibiotics and analgesics, throughout the gel.

An apoptosis-mimicking structure includes a polymeric core. The polymeric core includes a polymer backbone. The polymer backbone includes or is modified with a functional group to directly or indirectly bond to an eat me signaling molecule. An eat me signaling molecule is bonded directly or indirectly to the functional group. Other structures include a scaffold and the apoptosis-mimicking structure immobilized on or incorporated into the scaffold.

Disclosed herein are systems for promoting healing of a wound or surgical incision at a medical device site (e.g., implanted medical device) in a subject, by administering a microporous gel to the medical implant site. Also disclosed are systems for the treatment and prevention of infection at a medical implant site in a subject, by administering a microporous gel to the medical implant site. The microporous gel may be fluidic during application and annealed or crosslinked after application. The microporous gels may contain various therapeutic agents, including antibiotics and analgesics, throughout the gel.

The present invention provides methods and compositions for promoting regeneration of a tissue, methods for preventing or reducing inflammation of a tissue, methods for preventing or reducing fibrosis of a tissue, methods for increasing a mass of a tissue, methods for increasing a level of oxygen available to a tissue, methods for increasing a rate of metabolic waste removal from a tissue, methods for increasing blood perfusion to a tissue, and methods of treating severe muscle tissue damage in a subject in need thereof by contacting the tissue with a composition that is suitable for applying cyclic mechanical compression to the tissue.

The present invention relates to a support or a multiscale hierarchical scaffold for the tissue regeneration, in particular for the regeneration or replacement of the tendinous and/or ligamentous and/or muscular and/or nervous tissue. The present invention further relates to the processes for obtaining such support and the uses thereof.

Described herein are compositions comprising decellularized extracellular matrix derived from skeletal muscle or other suitable tissue, and therapeutic uses thereof. Methods for treating, repairing or regenerating defective, diseased, damage, ischemic, ulcer cells, tissues or organs in a subject preferably a human, with diseases associated with muscular degeneration, using a decellularized extracellular matrix of the invention are provided. Methods of preparing culture surfaces and culturing cells with absorbed decellularized extracellular matrix are provided.