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Ice Free Vitrification and nanowarming of large cartilage samples for transplantation

Award Number: R43AR073136
ORGANIZATION: NATIONAL INSTITUTE OF ARTHRITIS & MUSCULOSKELETAL & SKIN DISEASES
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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Ice Free Vitrification and nanowarming of large cartilage samples for transplantation - Resurfacing of articular cartilage with cold stored osteochondral allografts is employed clinically for repair of trauma and osteoarthritis-induced articular cartilage surface damage. Chondrocyte viability of transplanted articular cartilage is accepted as one of the determinants of outcome following osteochondral allograft transplantation. We have previously developed an ice-free vitrification method of cryopreservation that maintains excellent chondrocyte viability in animal model and human articular cartilage. The chondrocytes survive vitrification due to the absence of ice formation during cooling and warming of 1-3mL samples. However, it has not been possible to rewarm larger samples due to ice nucleation during rewarming that results in loss of chondrocyte viability. The innovation in this proposal relates to a new rewarming method that does not have the limitations of boundary convection warming that should be effective for samples up to 50mL in volume. This rewarming method utilizes radio frequency induced heating of magnetic iron nanoparticles. We will optimize nanowarming of full thickness osteocartilage storage for maintenance of both chondrocyte viability and extracellular matrix integrity. This objective will be developed in two specific aims to optimize nanowarming variables and scaleup from 5mL to 30-50mL volumes. Nanowarmed chondrocyte viability, chemistry, and biomaterial properties will be compared with untreated fresh control tissue. The nanowarming conditions that provides the best preservation of chondrocytes with minimal if any cartilage biomaterial changes will be selected for further investigation in vivo and translation to human cartilage in a subsequent Phase II SBIR application.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2019 ( Subtotal = -$1,445 )
2019	2017	TISSUE TESTING TECHNOLOGIES LLC	2231 TECHNICAL PKWY STE A	NORTH CHARLESTON	SC	29406	CHARLESTON	USA	Arthritis, Musculoskeletal and Skin Diseases Research	001	1	8/9/2019	NEW	-$1,445
2019	2017	TISSUE TESTING TECHNOLOGIES LLC	2231 TECHNICAL PKWY STE A	NORTH CHARLESTON	SC	29406	CHARLESTON	USA	Arthritis, Musculoskeletal and Skin Diseases Research	000	1	2/26/2019	NEW	$0
														Subtotal = -$1,445

Issue Date FY: 2017 ( Subtotal = $150,000 )
2017	2017	TISSUE TESTING TECHNOLOGIES LLC	2231 TECHNICAL PKWY STE A	NORTH CHARLESTON	SC	29406	CHARLESTON	USA	Arthritis, Musculoskeletal and Skin Diseases Research	000	1	9/12/2017	NEW	$150,000
														Subtotal = $150,000

Grand Total All Awards = $148,555

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Ice Free Vitrification and nanowarming of large cartilage samples for transplantation

Award Number: R43AR073136

ORGANIZATION: NATIONAL INSTITUTE OF ARTHRITIS & MUSCULOSKELETAL & SKIN DISEASES

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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