2017
DOI: 10.1177/1076029617702244
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Regulatory B Cells Are Functionally Impaired in Patients Having Hemophilia A With Inhibitors

Abstract: Development of inhibitors remains a major clinical complication in patients with hemophilia A receiving replacement therapy with factor VIII (FVIII). Understanding the immune mechanisms involved in the development of inhibitors can provide valuable information about pathways to human tolerance. Recent evidence indicates that B regulatory (Breg) cells play a pivotal role in controlling the production of antibodies (Abs) while promoting follicular T helper (Tfh) cells and monocytes, expressing the low-density li… Show more

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Cited by 6 publications
(8 citation statements)
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“…Surface and intracellular staining. Immunostaining was performed as recently reported (10). Briefly, in a 96-well polystyrene plate, appropriate amounts of each surface monoclonal antibody and 2x10 6 of PBMC were incubated in the dark for 30 min at 4˚C.…”
Section: Patientsmentioning
confidence: 99%
“…Surface and intracellular staining. Immunostaining was performed as recently reported (10). Briefly, in a 96-well polystyrene plate, appropriate amounts of each surface monoclonal antibody and 2x10 6 of PBMC were incubated in the dark for 30 min at 4˚C.…”
Section: Patientsmentioning
confidence: 99%
“…Uno de los mayores desafíos en el tratamiento de la hemofilia es el desarrollo de anticuerpos neutralizantes o inhibidores [33]. Estos son aloanticuerpos tipo Inmunoglobulina G (IgG) contra los factores de coagulación viii y ix, que pueden ser inducidos por la terapia sustitutiva con estos factores, los cuales neutralizan rápidamente la acción de los mismos, lo que hace ineficaz la terapia de reemplazo y expone a los pacientes a complicaciones importantes, aumento en los costos de manejo y en la morbimortalidad [5].…”
Section: Inhibidoresunclassified
“…Su presencia es más frecuente en individuos con hemofilia A, con una prevalencia del 12 a 35 %, mientras que en la B es de tan solo del 1 al 4 %. De igual modo, se presenta en el 25 al 50 % de los pacientes con hemofilia severa y usualmente se manifiesta en los primeros 50 días de tratamiento [5,33].…”
Section: Inhibidoresunclassified
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