Inventors:
Kenneth Hong - El Cerrito CA, US
Cary Queen - Cupertino CA, US
Assignee:
Abbott Biotherapeutics Corp. - Redwood City CA
International Classification:
A01K 67/027, A61K 39/395
US Classification:
4241331, 4241581, 4241731, 4241451, 4241421, 800 9, 435 71
Abstract:
Methods and compositions are provided for the creation and screening of non-human animal models having many of the histologic characteristics of human psoriasis. Immunocompromised host animals are injected with a purified population of CD45Rb positive cells, which are tolerant of the host major histocompatibility antigens, but are mismatched at one or more minor antigens. The injected cells are stimulated with a pro-inflammatory cytokine, e.g. IL-12, and a polyclonal activating agent. The injected animals develop a chronic skin disorder that includes histological features observed in human psoriasis, e.g. rete pegs, severe acanthosis and infiltration of Th1 cells into the dermis.