Novel BTK Mutation in Patient with Late Diagnosis of X-Linked Agammaglobulinemia

X-linked agammaglobulinemia (XLA) is a genetic disorder with mutation in Bruton’s tyrosine kinase (BTK). Defects in B cell development and immunoglobulin production lead to recurrent infections following loss of maternal IgG at 6 months of age. A 55-year-old male with a longstanding common variable...
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Autor*in:	Amanpreet Kalkat [verfasserIn] Olivia Humpel [verfasserIn] Robert Hostoffer [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Übergeordnetes Werk:	In: Case Reports in Immunology - Hindawi Limited, 2012, (2023)
Übergeordnetes Werk:	year:2023

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1155/2023/6698913

Katalog-ID:	DOAJ100616194

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520			\|a X-linked agammaglobulinemia (XLA) is a genetic disorder with mutation in Bruton’s tyrosine kinase (BTK). Defects in B cell development and immunoglobulin production lead to recurrent infections following loss of maternal IgG at 6 months of age. A 55-year-old male with a longstanding common variable immunodeficiency diagnosis on infusion therapy presented to the clinic with cutaneous T-cell lymphoma, which inspired overall repeat evaluation. Immunoglobulin levels and lymphocyte markers, family history, and genetic testing prompted a true diagnosis of XLA and novel mutation in the BTK gene. Disease-associated mutations have been noted in all five domains of BTK, with missense variants most commonly cited among the 100s of reported genetic alterations. The BTK protein is expressed in hematopoietic lineages and plasma cells, with the exception of T lymphocytes. Disruption in the protein function or absence of BTK halts normal B cell development at the pre-B transitional cell stage and induces premature apoptosis. We present the first reported case of a novel hemizygous BTK c.1492C < G mutation in a patient causing XLA.
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callnumber-subject-code	RC
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allfields	10.1155/2023/6698913 doi (DE-627)DOAJ100616194 (DE-599)DOAJ0d960f2d0d864e6a864d2ff3c7db88b8 DE-627 ger DE-627 rakwb eng RC581-607 Amanpreet Kalkat verfasserin aut Novel BTK Mutation in Patient with Late Diagnosis of X-Linked Agammaglobulinemia 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier X-linked agammaglobulinemia (XLA) is a genetic disorder with mutation in Bruton’s tyrosine kinase (BTK). Defects in B cell development and immunoglobulin production lead to recurrent infections following loss of maternal IgG at 6 months of age. A 55-year-old male with a longstanding common variable immunodeficiency diagnosis on infusion therapy presented to the clinic with cutaneous T-cell lymphoma, which inspired overall repeat evaluation. Immunoglobulin levels and lymphocyte markers, family history, and genetic testing prompted a true diagnosis of XLA and novel mutation in the BTK gene. Disease-associated mutations have been noted in all five domains of BTK, with missense variants most commonly cited among the 100s of reported genetic alterations. The BTK protein is expressed in hematopoietic lineages and plasma cells, with the exception of T lymphocytes. Disruption in the protein function or absence of BTK halts normal B cell development at the pre-B transitional cell stage and induces premature apoptosis. We present the first reported case of a novel hemizygous BTK c.1492C < G mutation in a patient causing XLA. Immunologic diseases. Allergy Olivia Humpel verfasserin aut Robert Hostoffer verfasserin aut In Case Reports in Immunology Hindawi Limited, 2012 (2023) (DE-627)73262780X (DE-600)2695564-7 20906617 nnns year:2023 https://doi.org/10.1155/2023/6698913 kostenfrei https://doaj.org/article/0d960f2d0d864e6a864d2ff3c7db88b8 kostenfrei http://dx.doi.org/10.1155/2023/6698913 kostenfrei https://doaj.org/toc/2090-6617 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_636 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2023
spelling	10.1155/2023/6698913 doi (DE-627)DOAJ100616194 (DE-599)DOAJ0d960f2d0d864e6a864d2ff3c7db88b8 DE-627 ger DE-627 rakwb eng RC581-607 Amanpreet Kalkat verfasserin aut Novel BTK Mutation in Patient with Late Diagnosis of X-Linked Agammaglobulinemia 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier X-linked agammaglobulinemia (XLA) is a genetic disorder with mutation in Bruton’s tyrosine kinase (BTK). Defects in B cell development and immunoglobulin production lead to recurrent infections following loss of maternal IgG at 6 months of age. A 55-year-old male with a longstanding common variable immunodeficiency diagnosis on infusion therapy presented to the clinic with cutaneous T-cell lymphoma, which inspired overall repeat evaluation. Immunoglobulin levels and lymphocyte markers, family history, and genetic testing prompted a true diagnosis of XLA and novel mutation in the BTK gene. Disease-associated mutations have been noted in all five domains of BTK, with missense variants most commonly cited among the 100s of reported genetic alterations. The BTK protein is expressed in hematopoietic lineages and plasma cells, with the exception of T lymphocytes. Disruption in the protein function or absence of BTK halts normal B cell development at the pre-B transitional cell stage and induces premature apoptosis. We present the first reported case of a novel hemizygous BTK c.1492C < G mutation in a patient causing XLA. Immunologic diseases. Allergy Olivia Humpel verfasserin aut Robert Hostoffer verfasserin aut In Case Reports in Immunology Hindawi Limited, 2012 (2023) (DE-627)73262780X (DE-600)2695564-7 20906617 nnns year:2023 https://doi.org/10.1155/2023/6698913 kostenfrei https://doaj.org/article/0d960f2d0d864e6a864d2ff3c7db88b8 kostenfrei http://dx.doi.org/10.1155/2023/6698913 kostenfrei https://doaj.org/toc/2090-6617 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_636 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2023
allfields_unstemmed	10.1155/2023/6698913 doi (DE-627)DOAJ100616194 (DE-599)DOAJ0d960f2d0d864e6a864d2ff3c7db88b8 DE-627 ger DE-627 rakwb eng RC581-607 Amanpreet Kalkat verfasserin aut Novel BTK Mutation in Patient with Late Diagnosis of X-Linked Agammaglobulinemia 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier X-linked agammaglobulinemia (XLA) is a genetic disorder with mutation in Bruton’s tyrosine kinase (BTK). Defects in B cell development and immunoglobulin production lead to recurrent infections following loss of maternal IgG at 6 months of age. A 55-year-old male with a longstanding common variable immunodeficiency diagnosis on infusion therapy presented to the clinic with cutaneous T-cell lymphoma, which inspired overall repeat evaluation. Immunoglobulin levels and lymphocyte markers, family history, and genetic testing prompted a true diagnosis of XLA and novel mutation in the BTK gene. Disease-associated mutations have been noted in all five domains of BTK, with missense variants most commonly cited among the 100s of reported genetic alterations. The BTK protein is expressed in hematopoietic lineages and plasma cells, with the exception of T lymphocytes. Disruption in the protein function or absence of BTK halts normal B cell development at the pre-B transitional cell stage and induces premature apoptosis. We present the first reported case of a novel hemizygous BTK c.1492C < G mutation in a patient causing XLA. Immunologic diseases. Allergy Olivia Humpel verfasserin aut Robert Hostoffer verfasserin aut In Case Reports in Immunology Hindawi Limited, 2012 (2023) (DE-627)73262780X (DE-600)2695564-7 20906617 nnns year:2023 https://doi.org/10.1155/2023/6698913 kostenfrei https://doaj.org/article/0d960f2d0d864e6a864d2ff3c7db88b8 kostenfrei http://dx.doi.org/10.1155/2023/6698913 kostenfrei https://doaj.org/toc/2090-6617 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_636 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2023
allfieldsGer	10.1155/2023/6698913 doi (DE-627)DOAJ100616194 (DE-599)DOAJ0d960f2d0d864e6a864d2ff3c7db88b8 DE-627 ger DE-627 rakwb eng RC581-607 Amanpreet Kalkat verfasserin aut Novel BTK Mutation in Patient with Late Diagnosis of X-Linked Agammaglobulinemia 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier X-linked agammaglobulinemia (XLA) is a genetic disorder with mutation in Bruton’s tyrosine kinase (BTK). Defects in B cell development and immunoglobulin production lead to recurrent infections following loss of maternal IgG at 6 months of age. A 55-year-old male with a longstanding common variable immunodeficiency diagnosis on infusion therapy presented to the clinic with cutaneous T-cell lymphoma, which inspired overall repeat evaluation. Immunoglobulin levels and lymphocyte markers, family history, and genetic testing prompted a true diagnosis of XLA and novel mutation in the BTK gene. Disease-associated mutations have been noted in all five domains of BTK, with missense variants most commonly cited among the 100s of reported genetic alterations. The BTK protein is expressed in hematopoietic lineages and plasma cells, with the exception of T lymphocytes. Disruption in the protein function or absence of BTK halts normal B cell development at the pre-B transitional cell stage and induces premature apoptosis. We present the first reported case of a novel hemizygous BTK c.1492C < G mutation in a patient causing XLA. Immunologic diseases. Allergy Olivia Humpel verfasserin aut Robert Hostoffer verfasserin aut In Case Reports in Immunology Hindawi Limited, 2012 (2023) (DE-627)73262780X (DE-600)2695564-7 20906617 nnns year:2023 https://doi.org/10.1155/2023/6698913 kostenfrei https://doaj.org/article/0d960f2d0d864e6a864d2ff3c7db88b8 kostenfrei http://dx.doi.org/10.1155/2023/6698913 kostenfrei https://doaj.org/toc/2090-6617 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_636 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2023
allfieldsSound	10.1155/2023/6698913 doi (DE-627)DOAJ100616194 (DE-599)DOAJ0d960f2d0d864e6a864d2ff3c7db88b8 DE-627 ger DE-627 rakwb eng RC581-607 Amanpreet Kalkat verfasserin aut Novel BTK Mutation in Patient with Late Diagnosis of X-Linked Agammaglobulinemia 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier X-linked agammaglobulinemia (XLA) is a genetic disorder with mutation in Bruton’s tyrosine kinase (BTK). Defects in B cell development and immunoglobulin production lead to recurrent infections following loss of maternal IgG at 6 months of age. A 55-year-old male with a longstanding common variable immunodeficiency diagnosis on infusion therapy presented to the clinic with cutaneous T-cell lymphoma, which inspired overall repeat evaluation. Immunoglobulin levels and lymphocyte markers, family history, and genetic testing prompted a true diagnosis of XLA and novel mutation in the BTK gene. Disease-associated mutations have been noted in all five domains of BTK, with missense variants most commonly cited among the 100s of reported genetic alterations. The BTK protein is expressed in hematopoietic lineages and plasma cells, with the exception of T lymphocytes. Disruption in the protein function or absence of BTK halts normal B cell development at the pre-B transitional cell stage and induces premature apoptosis. We present the first reported case of a novel hemizygous BTK c.1492C < G mutation in a patient causing XLA. Immunologic diseases. Allergy Olivia Humpel verfasserin aut Robert Hostoffer verfasserin aut In Case Reports in Immunology Hindawi Limited, 2012 (2023) (DE-627)73262780X (DE-600)2695564-7 20906617 nnns year:2023 https://doi.org/10.1155/2023/6698913 kostenfrei https://doaj.org/article/0d960f2d0d864e6a864d2ff3c7db88b8 kostenfrei http://dx.doi.org/10.1155/2023/6698913 kostenfrei https://doaj.org/toc/2090-6617 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_636 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2023
language	English
source	In Case Reports in Immunology (2023) year:2023
sourceStr	In Case Reports in Immunology (2023) year:2023
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Immunologic diseases. Allergy
isfreeaccess_bool	true
container_title	Case Reports in Immunology
authorswithroles_txt_mv	Amanpreet Kalkat @@aut@@ Olivia Humpel @@aut@@ Robert Hostoffer @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	73262780X
id	DOAJ100616194
language_de	englisch
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callnumber-first	R - Medicine
author	Amanpreet Kalkat
spellingShingle	Amanpreet Kalkat misc RC581-607 misc Immunologic diseases. Allergy Novel BTK Mutation in Patient with Late Diagnosis of X-Linked Agammaglobulinemia
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topic_title	RC581-607 Novel BTK Mutation in Patient with Late Diagnosis of X-Linked Agammaglobulinemia
topic	misc RC581-607 misc Immunologic diseases. Allergy
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title	Novel BTK Mutation in Patient with Late Diagnosis of X-Linked Agammaglobulinemia
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title_full	Novel BTK Mutation in Patient with Late Diagnosis of X-Linked Agammaglobulinemia
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title_sort	novel btk mutation in patient with late diagnosis of x-linked agammaglobulinemia
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title_auth	Novel BTK Mutation in Patient with Late Diagnosis of X-Linked Agammaglobulinemia
abstract	X-linked agammaglobulinemia (XLA) is a genetic disorder with mutation in Bruton’s tyrosine kinase (BTK). Defects in B cell development and immunoglobulin production lead to recurrent infections following loss of maternal IgG at 6 months of age. A 55-year-old male with a longstanding common variable immunodeficiency diagnosis on infusion therapy presented to the clinic with cutaneous T-cell lymphoma, which inspired overall repeat evaluation. Immunoglobulin levels and lymphocyte markers, family history, and genetic testing prompted a true diagnosis of XLA and novel mutation in the BTK gene. Disease-associated mutations have been noted in all five domains of BTK, with missense variants most commonly cited among the 100s of reported genetic alterations. The BTK protein is expressed in hematopoietic lineages and plasma cells, with the exception of T lymphocytes. Disruption in the protein function or absence of BTK halts normal B cell development at the pre-B transitional cell stage and induces premature apoptosis. We present the first reported case of a novel hemizygous BTK c.1492C < G mutation in a patient causing XLA.
abstractGer	X-linked agammaglobulinemia (XLA) is a genetic disorder with mutation in Bruton’s tyrosine kinase (BTK). Defects in B cell development and immunoglobulin production lead to recurrent infections following loss of maternal IgG at 6 months of age. A 55-year-old male with a longstanding common variable immunodeficiency diagnosis on infusion therapy presented to the clinic with cutaneous T-cell lymphoma, which inspired overall repeat evaluation. Immunoglobulin levels and lymphocyte markers, family history, and genetic testing prompted a true diagnosis of XLA and novel mutation in the BTK gene. Disease-associated mutations have been noted in all five domains of BTK, with missense variants most commonly cited among the 100s of reported genetic alterations. The BTK protein is expressed in hematopoietic lineages and plasma cells, with the exception of T lymphocytes. Disruption in the protein function or absence of BTK halts normal B cell development at the pre-B transitional cell stage and induces premature apoptosis. We present the first reported case of a novel hemizygous BTK c.1492C < G mutation in a patient causing XLA.
abstract_unstemmed	X-linked agammaglobulinemia (XLA) is a genetic disorder with mutation in Bruton’s tyrosine kinase (BTK). Defects in B cell development and immunoglobulin production lead to recurrent infections following loss of maternal IgG at 6 months of age. A 55-year-old male with a longstanding common variable immunodeficiency diagnosis on infusion therapy presented to the clinic with cutaneous T-cell lymphoma, which inspired overall repeat evaluation. Immunoglobulin levels and lymphocyte markers, family history, and genetic testing prompted a true diagnosis of XLA and novel mutation in the BTK gene. Disease-associated mutations have been noted in all five domains of BTK, with missense variants most commonly cited among the 100s of reported genetic alterations. The BTK protein is expressed in hematopoietic lineages and plasma cells, with the exception of T lymphocytes. Disruption in the protein function or absence of BTK halts normal B cell development at the pre-B transitional cell stage and induces premature apoptosis. We present the first reported case of a novel hemizygous BTK c.1492C < G mutation in a patient causing XLA.
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title_short	Novel BTK Mutation in Patient with Late Diagnosis of X-Linked Agammaglobulinemia
url	https://doi.org/10.1155/2023/6698913 https://doaj.org/article/0d960f2d0d864e6a864d2ff3c7db88b8 http://dx.doi.org/10.1155/2023/6698913 https://doaj.org/toc/2090-6617
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up_date	2024-07-03T15:43:38.576Z
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