mortality/aging
N |
• normal lifespan
|
immune system
• subcutaneous injection of complete Freund's adjuvant (CFA) produces a granuloma-like lesion in homozygotes by 3 days post injection and 18 of 28 mutants develop grade 2 or higher lesions by 7 days post injection versus 2 of 28 wild-type mice
• at the site of CFA injection increased necrosis, angiogenesis and leukocyte infiltration are seen
• 3 days after CFA injection increase lymph node cellularity is seen in homozygotes compared to wild-type mice; however 7 days after injection wild-type contralateral lymph nodes display hyperplasia which is not seen in homozygotes
|
dermatitis
(
J:97607
)
• 24 hours after a single exposure of dorsal skin to 12-O-tetradecanoylphorbol-13-acetate (TPA) beta-chemokine levels remain elevated suggesting a defect in post-inflammatory clearance
• after 3 daily applications of TPA homozygotes develop a psoriasis-like skin lesion that is characterized by skin thickening, basal and suprabasal epidermal hyperproliferation, severe epidermal acanthosis, parakeratosis, hyperkeratosis, extensive growth of convoluted blood vessels, and a dense inflammatory cell infiltrate that includes high numbers of T cells
• this TPA-induced inflammatory skin lesion persists for 6 to 10 days
• injection of TNF neutralizing antibodies, depletion of CD4+ and CD8+ T cells, or blockage of mast cell degranulation can prevent development of the TPA-induced psoriaform lesion
|
reproductive system
N |
• both sexes are fertile
|
integument
dermatitis
(
J:97607
)
• 24 hours after a single exposure of dorsal skin to 12-O-tetradecanoylphorbol-13-acetate (TPA) beta-chemokine levels remain elevated suggesting a defect in post-inflammatory clearance
• after 3 daily applications of TPA homozygotes develop a psoriasis-like skin lesion that is characterized by skin thickening, basal and suprabasal epidermal hyperproliferation, severe epidermal acanthosis, parakeratosis, hyperkeratosis, extensive growth of convoluted blood vessels, and a dense inflammatory cell infiltrate that includes high numbers of T cells
• this TPA-induced inflammatory skin lesion persists for 6 to 10 days
• injection of TNF neutralizing antibodies, depletion of CD4+ and CD8+ T cells, or blockage of mast cell degranulation can prevent development of the TPA-induced psoriaform lesion
|