PMID- 7542803 OWN - NLM STAT- MEDLINE DCOM- 19950831 LR - 20220316 IS - 0036-8075 (Print) IS - 0036-8075 (Linking) VI - 269 IP - 5224 DP - 1995 Aug 4 TI - Molecular identification of an IgE-dependent histamine-releasing factor. PG - 688-90 AB - An immunoglobulin E (IgE)-dependent histamine-releasing factor (HRF) produced by lymphocytes of atopic children and present in biological fluids of allergic patients has been identified and purified. Amino-terminal sequencing revealed extensive homology to a mouse protein, p21, and its human homolog, p23. Both recombinant proteins caused histamine release from the human basophils of a subpopulation of donors, and this release was dependent on IgE. Polyclonal antibodies recognized and removed the biological activity of recombinant and native HRF. HRF identifies a heterogeneity of IgE and is believed to play a prominent role in chronic allergic disease processes. FAU - MacDonald, S M AU - MacDonald SM AD - Department of Medicine, Johns Hopkins University School of Medicine, Johns Hopkins Asthma and Allergy Center, Baltimore, MD 21224, USA. FAU - Rafnar, T AU - Rafnar T FAU - Langdon, J AU - Langdon J FAU - Lichtenstein, L M AU - Lichtenstein LM LA - eng GR - AI 07290/AI/NIAID NIH HHS/United States GR - AI 32651/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Science JT - Science (New York, N.Y.) JID - 0404511 RN - 0 (Antibodies) RN - 0 (Biomarkers, Tumor) RN - 0 (Lymphokines) RN - 0 (Recombinant Fusion Proteins) RN - 0 (Tumor Protein, Translationally-Controlled 1) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Amino Acid Sequence MH - Animals MH - Antibodies/immunology MH - Base Sequence MH - Basophils/immunology MH - *Biomarkers, Tumor MH - Cell Line MH - Cloning, Molecular MH - *Histamine Release MH - Humans MH - Immunoglobulin E/*immunology MH - Kinetics MH - Lymphokines/*chemistry/immunology/isolation & purification/pharmacology MH - Macrophages/metabolism MH - Mice MH - Molecular Sequence Data MH - Recombinant Fusion Proteins/pharmacology MH - Sequence Homology, Amino Acid MH - Tumor Protein, Translationally-Controlled 1 EDAT- 1995/08/04 00:00 MHDA- 1995/08/04 00:01 CRDT- 1995/08/04 00:00 PHST- 1995/08/04 00:00 [pubmed] PHST- 1995/08/04 00:01 [medline] PHST- 1995/08/04 00:00 [entrez] AID - 10.1126/science.7542803 [doi] PST - ppublish SO - Science. 1995 Aug 4;269(5224):688-90. doi: 10.1126/science.7542803.