PMID- 11167353 OWN - NLM STAT- MEDLINE DCOM- 20010419 LR - 20190822 IS - 0105-4538 (Print) IS - 0105-4538 (Linking) VI - 56 IP - 1 DP - 2001 Jan TI - Interleukin-4-positive mast cells are highly associated with the extent of immediate allergic wheal reaction in the skin. PG - 58-64 AB - BACKGROUND: In addition to histamine, mast cells contain other potent mediators which can contribute to the allergic wheal reaction in the skin. METHODS: To study the association of tryptase-, chymase-, and interleukin-4 (IL-4)-positive mast cells with the size of the prick-test wheal reaction, 50 sensitive atopic subjects were prick-tested with the cow-dander allergen on the forearm skin, and the wheal area was measured. A corresponding site of intact healthy-looking skin was biopsied and examined enzyme-histochemically for tryptase and chymase. A double-staining method was used to demonstrate the immunoreactivity of IL-4 and chymase inhibitors (alpha1-proteinase inhibitor and alpha1-antichymotrypsin) in mast cells. The levels of total and cow-specific immunoglobulin E (IgE) were measured in serum. RESULTS: The number of tryptase- and chymase-positive mast cells or those containing chymase inhibitors revealed no correlation with the wheal reaction. In contrast, both the percentage and the number of IL-4-positive mast cells showed significant positive correlation with the wheal size per se (P<0.0001), as well as with the ratio of the wheal size by cow allergen to that by histamine control (P<0.003). In addition, tryptase-, chymase-, and IL-4-positive mast cells correlated with total IgE, but not with specific IgE, levels, and they showed no relation to the clinical manifestation of atopic disease, asthma or atopic dermatitis. CONCLUSIONS: The novel finding was that IL-4-positive, but not tryptase- and chymase-positive, mast cells are intimately associated with the extent of the prick-test wheal. FAU - Saarinen, J V AU - Saarinen JV AD - Department of Dermatology, Kuopio University Hospital, Finland. FAU - Harvima, R J AU - Harvima RJ FAU - Naukkarinen, A AU - Naukkarinen A FAU - Horsmanheimo, M AU - Horsmanheimo M FAU - Harvima, I T AU - Harvima IT LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Denmark TA - Allergy JT - Allergy JID - 7804028 RN - 0 (alpha 1-Antichymotrypsin) RN - 0 (alpha 1-Antitrypsin) RN - 207137-56-2 (Interleukin-4) RN - 37341-29-0 (Immunoglobulin E) RN - EC 3.4.21.- (Serine Endopeptidases) RN - EC 3.4.21.39 (Chymases) RN - EC 3.4.21.59 (Tryptases) SB - IM EIN - Allergy 2001 May;56(5):451 MH - Adolescent MH - Adult MH - Biopsy MH - Cell Count MH - Chymases MH - Female MH - Humans MH - Hypersensitivity, Immediate/blood/diagnosis/*immunology MH - Immunoglobulin E/blood MH - Interleukin-4/*analysis MH - Male MH - Mast Cells/*chemistry/cytology/enzymology MH - Middle Aged MH - Serine Endopeptidases/analysis MH - Skin/pathology MH - Skin Tests MH - Tryptases MH - alpha 1-Antichymotrypsin/analysis MH - alpha 1-Antitrypsin/analysis EDAT- 2001/02/13 11:00 MHDA- 2001/04/21 10:01 CRDT- 2001/02/13 11:00 PHST- 2001/02/13 11:00 [pubmed] PHST- 2001/04/21 10:01 [medline] PHST- 2001/02/13 11:00 [entrez] AID - all833 [pii] AID - 10.1034/j.1398-9995.2001.00833.x [doi] PST - ppublish SO - Allergy. 2001 Jan;56(1):58-64. doi: 10.1034/j.1398-9995.2001.00833.x.