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Higher proportions of peripheral CD19^+CD5^+ B cells predict the effect of corticosteroid in patients with late-onset hemorrhagic cystitis after allogeneic hematopoietic stem cell transplantation 被引量:3

Higher proportions of peripheral CD19^+CD5^+ B cells predict the effect of corticosteroid in patients with late-onset hemorrhagic cystitis after allogeneic hematopoietic stem cell transplantation
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摘要 Background The cause of late-onset hemorrhagic cystitis (LOHC) after allogeneic hematopoietic stem cell transplantation (allo-HSCT) remains obscure. In clinical practice, some LOHC patients respond to immunosuppression.The aim of this study was to determine the immune pathogenesis of LOHC post allo-HSCT.Methods With the diagnosis of LOHC, patients were given initial treatment consisting of fluid hydration, alkalization and forced diuresis, and empirical anti-viral therapy for 10-14 days or until a week after the virus became negative. The nonresponders were applied corticosteroid. Seven to ten days later, patients' response was evaluated. Along with treatment, CD19^+ B lymphocyte subsets were measured at various study points.Results From October 2009 to March 2010, we found 28 cases of LOHC occurred in 25 patients who underwent allo-HSCT in our hospital. Except that three cases were not treated according to the protocol, the other 25 cases were divided into three groups: anti-virus responders (Group A, n=6), corticosteroid responders (Group B1, n=16),corticosteroid and anti-virus nonresponders (Group C, n=3) according to their clinical response. Percentages of CD19^+CD5^+ B lymphocytes were not significantly different among three groups at onset of LOCH. However, in Group B1after the first anti-virus phase, percentages of CD19^+CD5^+ lymphocytes significantly increased comparing with those at onset (P=0.022), and then significantly decreased at PR (P=0.003) and CR (P=0.002) with corticosteroid treatment. But significant change was not observed in Groups A and C.Conclusion The immune etiology seems to be involved in the development of LOHC and the proportion of CD19^+CD5^+lymphocytes may serve as a cellular biomarker to predict the response to corticosteroid in LOHC Background The cause of late-onset hemorrhagic cystitis (LOHC) after allogeneic hematopoietic stem cell transplantation (allo-HSCT) remains obscure. In clinical practice, some LOHC patients respond to immunosuppression.The aim of this study was to determine the immune pathogenesis of LOHC post allo-HSCT.Methods With the diagnosis of LOHC, patients were given initial treatment consisting of fluid hydration, alkalization and forced diuresis, and empirical anti-viral therapy for 10-14 days or until a week after the virus became negative. The nonresponders were applied corticosteroid. Seven to ten days later, patients' response was evaluated. Along with treatment, CD19^+ B lymphocyte subsets were measured at various study points.Results From October 2009 to March 2010, we found 28 cases of LOHC occurred in 25 patients who underwent allo-HSCT in our hospital. Except that three cases were not treated according to the protocol, the other 25 cases were divided into three groups: anti-virus responders (Group A, n=6), corticosteroid responders (Group B1, n=16),corticosteroid and anti-virus nonresponders (Group C, n=3) according to their clinical response. Percentages of CD19^+CD5^+ B lymphocytes were not significantly different among three groups at onset of LOCH. However, in Group B1after the first anti-virus phase, percentages of CD19^+CD5^+ lymphocytes significantly increased comparing with those at onset (P=0.022), and then significantly decreased at PR (P=0.003) and CR (P=0.002) with corticosteroid treatment. But significant change was not observed in Groups A and C.Conclusion The immune etiology seems to be involved in the development of LOHC and the proportion of CD19^+CD5^+lymphocytes may serve as a cellular biomarker to predict the response to corticosteroid in LOHC
出处 《Chinese Medical Journal》 SCIE CAS CSCD 2011年第10期1517-1523,共7页 中华医学杂志(英文版)
关键词 late-onset hemorrhagic cystitis hematopoietic stem cell transplantation immune etiology CD19^+ CD5^+ B lymphocyte late-onset hemorrhagic cystitis hematopoietic stem cell transplantation immune etiology CD19^+ CD5^+ B lymphocyte
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