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Title: The role of CD4+CD25+Foxp3+ regulatory T cells in the patchomechanism of transient hypogammaglobulinemia of infancy

Author:

Rutkowska, Magdalena

Date:

2013

Type:

Praca doktorska

Abstract:

Transient hypogammaglobulinemia of infancy is one of the most common primary humoral immunodeficiencies in children. The underlying basis of reduced serum immunoglobulins level and their subsequent mechanisms of normalization are still unknown. The main goal of this study was to determine new pathomechanisms underlying this immunodeficiency, as well as to establish new criteria/immunological parameters that would be useful in the differential diagnosis of THI and early-onset CVID. In this study the number of circulating CD4+CD25+Foxp3+ Treg cells and several parameters related to the generation and function of these cells were determined. Prospective clinical observations of children with THI revealed that initially increased Treg numbers decreased with age and reached the values observed in healthy subjects. The normalization of IgG levels in serum and withdrawal of clinical symptoms occuring with the decrease of the Treg number in the peripheral blood was observed. Functional evaluation of Treg cells performed in vitro has demonstrated their inhibitory effect on the production of IgG by B lymphocytes. However, the analysis of sequences of receptors for TGF-β encoding genes has not shown any mutations/polymorphisms that could be responsible for studied deficiency. The obtained data indicate the important role of Treg cells in the pathogenesis of THI (yet not CVID or SIgAD). Evaluation of Treg cell number may be helpful in the differential diagnosis of THI with other forms of frequently occurring hipogammaglobulinemias.

Place of publishing:

Kraków

Level of degree:

2 - studia doktoranckie

Degree discipline:

hematologia ; immunologia ; pediatria

Degree grantor:

Uniwersytet Jagielloński. Collegium Medicum. Wydział Lekarski.

Promoter:

Maciej Siedlar

Date issued:

2013

Format:

application/pdf

Identifier:

oai:dl.cm-uj.krakow.pl:3619

Call number:

ZB-119114

ControlNumberVIRTUA:

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Language:

pol

Access rights:

nieograniczony

Location of original object:

Biblioteka Medyczna Uniwersytetu Jagiellońskiego- Collegium Medicum

Subject and keywords:

regulatory T cells (Treg) transient hypogammaglobulinemia of infancy (THI) common variable immunodeficiency (CVID) primary immunodeficiencies (PID) transcription factor Foxp3

Object collections:

Last modified:

Jun 26, 2019

In our library since:

Nov 5, 2013

Number of object content hits:

964

Number of object content views in PDF format

964

All available object's versions:

http://dl.cm-uj.krakow.pl:8080/publication/3619

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Edition name Date
ZB-119114 Jun 26, 2019

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