Smith + Nephew

Organogenesis, Inc.

Odontis Limited

Intercytek Ltd.

Paul Kemp

Jennifer Sutherland

Margaret Batten

Penelope Ann Johnson

Andrew Shering

Michael McWhan

Robert M Carr, Jr

Ginger A Abraham

Ryan D Mercer

Györgyi Talas

Linda Baker

Paul Thomas Sharpe

Michael David Leek

Ewan James Campbell

The present invention relates to compositions and methods for tissue regeneration, particularly for treating skin lesions such as wounds. In one aspect, the invention provides a wound healing composition comprising living cells such as fibroblasts within a support matrix such as fibrin, in which the cells have a wound healing phenotype, and in which the composition is single layered and has been incubated for up to about 8 days to allow development of the wound healing phenotype. The compositions and methods of the invention are useful especially for assisting the process of wound healing, particularly chronic open lesions that are slow to heal or resistant to healing.

Wound healing composition

The present invention relates to compositions and methods for tissue regeneration, particularly for treating skin lesions such as wounds. In one aspect, the invention provides wound healing composition characterized by the higher expression levels of phenotypic marker genes such as apolipoprotein D, matrix metalloprotease (2), collagen 3a1 and smooth muscle actin than the housekeeping gene ribosomal protein L32. The compositions and methods of the invention are useful especially for assisting the process of wound healing, particularly chronic open lesions that are slow to heal or resistant to healing.

Wound healing profile

The present invention is based on the discovery that when a tooth primordium is inserted into a mammalian jaw and tooth formation follows, new alveolar bone around the new tooth forms. The present invention is based on the idea of stimulating new tooth formation via the implantation of tooth primordia at selected places in the jaw (e.g. at four points in the molar regions) to result in the formation of bony protuberances which could facilitate denture retention. The teeth may then be removed from the jaw of the patient to leave the new alveolar bone.

Bone regeneration

The invention is directed to collagenous tissues which have been treated to remove non-collagenous components such as cells, cellular debris, and other extracellular matrix components, such as proteoglycans and glycosaminoglycans, normally found in native tissues. Treatment of the tissue with alkali, chelating agents, acids and salts removes non-collagenous components from the collagenous tissue matrix while controlling the amount of swelling and dissolution so that the resultant collagen matrix retains its structural organization, integrity and bioremodelable properties. The process circumvents the need to use detergents and enzymes which detrimentally affect the cell compatibility, strength and bioremodelability of the collagen matrix. The collagenous tissue matrix is used for implantation, repair, or use in a mammalian host.

Chemical cleaning of biological material

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Romiley, United Kingdom

Paul Kemp