Methods of treating a complex wound by administering to a complex wound in the individual a therapeutically effective amount of a fetal support tissue product to treat the complex wound. Methods of treating a complex lower extremity ulcer by administering to a complex lower extremity ulcer in the individual a therapeutically effective amount of a fetal support tissue product to treat the complex lower extremity ulcer. Methods of reducing or preventing scar formation from granulation tissue by administering a fetal support tissue product to granulation tissue. Methods of repairing a spina bifida defect by administering to the defect in the individual a therapeutically effective amount of an umbilical cord product.

[Object] Provided is a method of producing a nerve fascicle including efficiently extending axons of neural cells.

[Solution] Neural cells are cultivated in the presence of feeder cells including at least one type of cells selected from the group consisting of vascular component cells, perivascular cells, and oligodendrocytes.

In a method for implantation of a physically stabilized aggregate of living cells or tissue fragment is injected into a channel provided in soft tissue filled with an aqueous gel. Also discloses are methods of stabilizing such aggregates and fragments and of forming such channel in soft tissue as well as means for carrying out the methods.

Embodiments described herein relate to restorative solutions for segmental peripheral nerve (PN) defects using allografted PNs for stimulating PN repair. More specifically, embodiments described herein provide for localized immunosuppression (LIS) surrounding PN allografts as an alternative to systemically suppressing a patient's entire immune system. Methods include localized release of immunosuppressive (ISV) agents are contemplated in one embodiment. Methods also include localized application of immunosuppressive (ISV) regulatory T-cells (Tregs) and/or mesenchymal stomal cells in other embodiments. Hydrogel carrier materials are also described herein.

Embodiments described herein relate to restorative solutions for segmental peripheral nerve (PN) defects using allografted PNs for stimulating PN repair. More specifically, embodiments described herein provide for localized immunosuppression (LIS) surrounding PN allografts as an alternative to systemically suppressing a patient's entire immune system. Methods include localized release of immunosuppressive (ISV) agents are contemplated in one embodiment. Methods also include localized application of immunosuppressive (ISV) regulatory T-cells (Tregs) and/or mesenchymal stomal cells in other embodiments. Hydrogel carrier materials are also described herein.

The invention relates to a cell sheet construct for neurovascular reconstruction. The cell sheet construct has a vascular endothelial cell layer and a neural stem cell layer, and the two layers are physically in direct contact with each other, where the vascular endothelial cell layer forms branching vasculatures, and the neural stem cell layer differentiates into neurons. The invention also relates to a method for manufacturing the cell sheet construct, having the following steps: culturing vascular endothelial cells on a substrate to form a vascular endothelial cell layer, seeding neural stem cells on the vascular endothelial cell layer to make the neural stem cells be physically in direct contact with the vascular endothelial cell layer, and culturing the neural stem cells and the vascular endothelial cell layer to differentiate into neurons and branching vasculatures to form a cell sheet construct.

Embodiments described herein relate to restorative solutions for segmental peripheral nerve (PN) defects using allografted PNs for stimulating PN repair. More specifically, embodiments described herein provide for localized immunosuppression (LIS) surrounding PN allografts as an alternative to systemically suppressing a patient's entire immune system. Methods include localized release of immunosuppressive (ISV) agents are contemplated in one embodiment. Methods also include localized application of immunosuppressive (ISV) regulatory T-cells (Tregs) and/or mesenchymal stomal cells in other embodiments. Hydrogel carrier materials are also described herein.

A modified extracellular matrix-based hydrogel according to an example of the present disclosure includes an extracellular matrix-denatured collagen conjugate formed by a Michael addition reaction between an extracellular matrix having an amine group and a denatured collagen into which an ethylenically unsaturated bond functional group is introduced. The modified extracellular matrix-based hydrogel according to the present disclosure exhibits enhanced mechanical properties (e.g., viscoelasticity) compared to the extracellular matrix hydrogel before modification. In addition, it shows a high cell viability when the bioink is prepared by encapsulating cells in a modified extracellular matrix-based hydrogel according to the present disclosure. In addition, when an artificial living tissue for transplantation (for example, artificial corneal tissue) manufactured by 3-D printing bioink according to the present disclosure is transplanted into a damaged cornea, it can be sutured and has a transparency similar to that of the real cornea, and corneal tissue can be reconstructed without other side effects due to its enhanced mechanical properties. Accordingly, the modified extracellular matrix-based hydrogel according to the present disclosure can be applied in tissue engineering fields and related fields requiring improvement in physical properties and is particularly useful as a material for corneal transplants.

Provided are tissue repair and sealing devices, and methods for the use of tissue repair and sealing devices, for use in both minimally invasive surgical (MIS) procedures and open, non-MIS procedures to rapidly repair tissue fenestrations and create a pressure-resistant, watertight seal in a tissue barrier. Tissue repair and sealing devices disclosed herein comprise an integrated graft and deployable clasp assembly and an applicator assembly having a clasp retain and release member that is slidably connected to a folded, deployable clasp. The applicator assembly places a graft on a tissue inner surface and a deployable clasp on a tissue outer surface to secure the graft to the tissue inner surface to, thereby, repair a tissue fenestration and create a watertight barrier.

[Object]

Provided is a method of producing a nerve bundle including efficiently extending axons of neural cells.

[Solution]

Neural cells are cultivated in the presence of feeder cells including at least one type of cells selected from vascular component cells and perivascular cells.