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US 10,711,292 B2Granted
Method for promoting the synthesis of collagen and proteoglycan in chondrocytes
AssigneesNikkon Zoki Pharmaceutical Co., Ltd., The Regents of the University of California
InventorsKoichi Masuda, Mitsuru Naiki
Life of this patent
Estimating the term…
Abstract
The synthesis of collagen and proteoglycan in chondrocytes, such as intervertebral disc cells, articular chondrocytes and meniscal cells is promoted by administration of an extract from inflamed tissue inoculated with vaccinia virus.
Claims1
A method for determining or evaluating the promoting effect of an extract isolated from a rabbit skin inflamed by inoculation with vaccinia virus on synthesis of proteoglycan and/or collagen comprising:
- a) treating cultured nucleus pulposus cells under hypoxic conditions with an effective amount of the extract to promote synthesis of proteoglycan in the cultured nucleus pulposus cells, and measuring a promoting activity on the synthesis of proteoglycan in the cultured nucleus pulposus cells by said extract, or
- b) treating cultured nucleus pulposus cells and/or cultured anulus fibrosus cells under normoxic conditions with an effective amount of the extract to promote synthesis of collagen in the cultured nucleus pulposus cells and/or anulus fibrosus cells, and measuring a promoting activity on the synthesis of collagen in the cultured nucleus pulposus cells and/or anulus fibrosus cells by said extract, or
- c) treating cultured nucleus pulposus cells under hypoxic conditions with an effective amount of the extract to promote synthesis of collagen in the cultured nucleus pulposus cells, and measuring a promoting activity on the synthesis of collagen in the cultured nucleus pulposus cells by said extract.
Dependencies are inferred from the claim text.