PMID- 16618365 OWN - NLM STAT- MEDLINE DCOM- 20070326 LR - 20171116 IS - 0905-6157 (Print) IS - 0905-6157 (Linking) VI - 17 IP - 2 DP - 2006 Mar TI - Basophil Activation Test and specific IgE measurements using a panel of recombinant natural rubber latex allergens to determine the latex allergen sensitization profile in children. PG - 148-56 AB - There are no documented studies that describe natural rubber latex (NRL) sensitization in children with a history of surgical intervention but without any congenital malformation (urogenital anomalies, spina bifida, etc.), although some authors have studied NRL allergy in children without a history of surgical intervention. The aim of this work was to evaluate the sensitization profile to single NRL allergens in children without spina bifida and without repeated surgical interventions, by using different recombinant and natural latex allergens in two analytical techniques: specific serum immunoglobulin E (IgE) quantification and flow cytometry determination of activated basophils expressing CD63, after stimulating cells from patients with NRL allergens. A total of 23 patients and 10 healthy children were selected. Conjunctival and in-use NRL provocation tests were carried out, as well as specific IgE determination in all patients' and controls' sera with the recombinant NRL allergens: rHev b 1, rHev b 2, rHev b 3, rHev b 5, rHev b 6.01, rHev b 6.02, rHev b 8, rHev b 9 and rHev b 11 and with NRL (k82) using appropriate ImmunoCAPs. The Basophil Activation Test (BAT) was performed with whole latex extract and with the recombinant allergens rHev b 5 and rHev b 6.01, as well as with the natural allergen Hev b 6.02. The sensitivity and the specificity of NRL-specific IgE (k82) were 100%. Positive IgE responses to rHev b 5 were found in sera of 10 children, to rHev b 6.01 in 16 and for rHev b 6.02 in 15 children's sera. Specific IgE to rHev b 8 was found in four sera of the children. We only found significant differences in sensitization to rHev b 5 in children with two or more surgical interventions compared with the non-intervened group or those with only one intervention. Specific IgE in sera of children with latex-fruit syndrome recognized rHev b 6.02, but not to rHev b 11. The patients sensitized to Hev b 8, Hev b 9 and/or Hev b 11 were atopic. The four patients presenting a positive response to the NRL profilin Hev b 8 were allergic to pollen. The BAT against whole NRL extract was positive in 22 of 23 children; against rHev b 5 in 14 of the patients studied; against rHev b 6.01 in seven cases and against nHev b 6.02 in 19 children. In all the control subjects, the results using this technique were negative. If combined rHev b 5, rHev b 6.01 and nHev b 6.02 together, BAT could detect 20 of the 23 children with latex allergy. The combined use of ImmunoCAP with all the recombinant NRL allergens and BAT with rHev b 5, rHev b 6.01 and nHev b 6.02, enabled the identification of NRL allergy in 22 of 23 patients. There is a positive and significant correlation between sensitization to Hev b 5 and the number of interventions. BAT and allergen-specific IgE determination could be used as first-line in vitro diagnostic tests in patients with NRL allergy. FAU - Sanz, Maria L AU - Sanz ML AD - Department of Allergology and Clinical Immunology, Clinica Universitaria, Universidad de Navarra, Pamplona, Spain. mlsanzar@unav.es FAU - Garcia-Aviles, M C AU - Garcia-Aviles MC FAU - Tabar, Ana I AU - Tabar AI FAU - Anda, M AU - Anda M FAU - Garcia, B E AU - Garcia BE FAU - Barber, Domingo AU - Barber D FAU - Salcedo, Gabriel AU - Salcedo G FAU - Rihs, Hans-Peter AU - Rihs HP FAU - Raulf-Heimsoth, Monika AU - Raulf-Heimsoth M LA - eng PT - Journal Article PL - England TA - Pediatr Allergy Immunol JT - Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology JID - 9106718 RN - 0 (Allergens) RN - 0 (Antigens, CD) RN - 0 (Antigens, Plant) RN - 0 (CD63 protein, human) RN - 0 (Plant Proteins) RN - 0 (Platelet Membrane Glycoproteins) RN - 0 (Recombinant Proteins) RN - 0 (Tetraspanin 30) RN - 0 (allergen Hev b 5) RN - 37341-29-0 (Immunoglobulin E) RN - 9006-04-6 (Rubber) SB - IM MH - Adolescent MH - Allergens/*immunology MH - Antibody Specificity MH - Antigens, CD/biosynthesis MH - Antigens, Plant MH - *Basophil Degranulation Test MH - Child MH - Child, Preschool MH - Female MH - Flow Cytometry MH - Humans MH - Immunoglobulin E/*blood/immunology MH - Latex Hypersensitivity/diagnosis/*immunology MH - Male MH - Plant Proteins/immunology MH - Platelet Membrane Glycoproteins/biosynthesis MH - Recombinant Proteins/immunology MH - Rubber MH - Tetraspanin 30 EDAT- 2006/04/19 09:00 MHDA- 2007/03/27 09:00 CRDT- 2006/04/19 09:00 PHST- 2006/04/19 09:00 [pubmed] PHST- 2007/03/27 09:00 [medline] PHST- 2006/04/19 09:00 [entrez] AID - PAI359 [pii] AID - 10.1111/j.1399-3038.2005.00359.x [doi] PST - ppublish SO - Pediatr Allergy Immunol. 2006 Mar;17(2):148-56. doi: 10.1111/j.1399-3038.2005.00359.x.