·Fungal keratitis(FK) is a worldwide visual impairment disease. This infectious fungus initiates the primary innate immune response and, later the adaptive immune response. The inflammatory process is related to ...·Fungal keratitis(FK) is a worldwide visual impairment disease. This infectious fungus initiates the primary innate immune response and, later the adaptive immune response. The inflammatory process is related to a variety of immune cells, including macrophages, helper T cells, neutrophils, dendritic cells, and Treg cells, and is associated with proinflammatory, chemotactic and regulatory cytokines. All-trans retinoic acids(ATRA)have diverse immunomodulatory actions in a number of inflammatory and autoimmune conditions. These retinoids regulate the transcriptional levels of target genes through the activation of nuclear receptors.Retinoic acid receptor α(RAR α), retinoic acid receptor γ(RAR γ), and retinoid X receptor α(RXR α) are expressed in the cornea and immune cells. This paper summarizes new findings regarding ATRA in immune and inflammatory diseases and analyzes the perspective application of ATRA in FK.展开更多
Objective: To investigate the relationship among glucocorticoid receptor (GCR) level, immunological classification and clinical efficacy of chemotherapy in acute lymphoblastic leukemia (ALL) children. Methods: The GCR...Objective: To investigate the relationship among glucocorticoid receptor (GCR) level, immunological classification and clinical efficacy of chemotherapy in acute lymphoblastic leukemia (ALL) children. Methods: The GCR level of venous blood lymphocytes was measured by receptor radioligand binding assay in 50 cases with childhood ALL and 41 normal children. The immunological classification of 32 children with ALL was analyzed by ABC immunoenzymatic method. Results: The GCR number in venous blood lymphocytes of normal children was 4651±1617 binding sites/cell. The normal range (95%) was 1482–7800 binding sites/cell. The GCR level of 50 cases with ALL (6695±5256 binding sites/cell) was significantly higher than that of the normal ones (t=2.50, P<0.05). The GCR level of the ALL children with good prognosis was significantly higher than that of bad prognosis (t=4.39, P<0.001). The relationship between immunological classification and GCR level of 32 cases with children ALL was as follows: GCR level of T-ALL and B-ALL were significantly lower than AUL, C-ALL and pre-B-ALL; the prognosis of T-ALL and B-ALL was also bad; the GCR level of the group with good prognosis was significantly higher than that with bad prognosis in all immunological types. Conclusion: The GCR level of the peripheral venous blood lymphocytes in children ALL may be an important biochemistry indicator and used to predict prognosis and guide combination chemotherapy. The relationship between GCR and immunological classification can be useful to the expectation of prognosis.展开更多
目的:探索CD19 CAR-T细胞治疗复发/难治性B-ALL后细胞因子水平的变化及其临床意义。方法:选取2015年8月至2018年2月我院血液科接受CD19 CAR-T细胞治疗的复发/难治性B-ALL患者23例,应用CBA技术和免疫比浊法检测输注前后血清中IL-6、IFN-...目的:探索CD19 CAR-T细胞治疗复发/难治性B-ALL后细胞因子水平的变化及其临床意义。方法:选取2015年8月至2018年2月我院血液科接受CD19 CAR-T细胞治疗的复发/难治性B-ALL患者23例,应用CBA技术和免疫比浊法检测输注前后血清中IL-6、IFN-γ、IL-10、TNF-α和CRP水平。然后根据CTCAE v4.0将发生CRS的患者分为轻度CRS组(1~2级)和重度CRS组(3~5级),比较两组细胞因子水平的差异及治疗反应。结果:①CD19 CAR-T细胞输注前后患者血清中IL-6(2.00~28.50 vs 34.50~112.00)、IFN-γ(2.13~3.12 vs 4.35~10.07)、IL-10(1.00~1.80 vs 4.01~39.92)、TNF-α(2.91~4.60 vs 4.99~40.18)差异均具有统计学意义(P=0.000,0.000,0.001,0.002);②轻度CRS组和重度CRS患者相比,血清中IL-6(28.75~61.25 vs 91.00~1 074.00)、IFN-γ(3.93~7.28 vs 12.53~15.30)、IL-10(3.13~7.47 vs 39.92~84.97)、TNF-α(4.60~15.77 vs 40.18~62.51)和CRP(4.95~46.86 vs 37.81~120.17)差异均具有统计学意义(P=0.004、0.004、0.003、0.000、0.045);③CD19 CAR-T治疗后完全缓解(包括血象未完全恢复患者)组与未缓解组间上述细胞因子与CRP水平均差异无统计学意义;④IL-6显著升高的重度CRS患者,应用IL-6受体拮抗剂治疗后均好转。结论:IL-6、IFN-γ、IL-10、TNF-α细胞因子的水平可作为判断CRS严重程度的实验室参考指标,并可指导临床靶向选择细胞因子拮抗剂,但对CD19 CAR-T疗效预测价值有待进一步验证。展开更多
All-trans retinoic acid (ATRA) triggers a wide range of effects on vertebrate development by regulating cell proliferation, differentiation, and apoptosis. ATRA activates retinoic acid receptors (RARs) which heterodim...All-trans retinoic acid (ATRA) triggers a wide range of effects on vertebrate development by regulating cell proliferation, differentiation, and apoptosis. ATRA activates retinoic acid receptors (RARs) which heterodimerize with retinoid X receptors (RXRs). RAR/RXR heterodimers function as ATRA-dependent transcriptional regulators by binding to retinoic acid response elements (RAREs). To identify RAR/RXR heterodimer-binding sites in the human genome, we performed a modified yeast one-hybrid assays and identified 193 RAR/RXR heterodimer-binding fragments in the human genome. The putative target genes included genes involved in development process and cell differentiation. Gel mobility shift assays indicated that 160 putative RAREs could directly interact with the RAR/RXR heterodimer. Moreover, 19 functional regulatory single nucleotide polymorphisms (rSNPs) on the RAR/RXR-binding sequences were identified by analyzing the difference in the DNA-binding affinities. These results provide insights into the molecular mechanisms underlying the physiological and pathological actions of RAR/RXR heterodimers.展开更多
[目的]观察全反式维甲酸(alltransretinoicacid,ATRA)体外对人神经母细胞瘤细胞系SK N SH细胞生长的影响并对其作用机制进行初步探讨。[方法]SK N SH细胞经ATRA处理后 ,采用相差显微镜、神经纤维银染法、透射电镜观察、逆转录PCRmRNA检...[目的]观察全反式维甲酸(alltransretinoicacid,ATRA)体外对人神经母细胞瘤细胞系SK N SH细胞生长的影响并对其作用机制进行初步探讨。[方法]SK N SH细胞经ATRA处理后 ,采用相差显微镜、神经纤维银染法、透射电镜观察、逆转录PCRmRNA检测等手段 ,观察ATRA对SK N SH细胞生长的影响。[结果]ATRA作用SK N SH细胞12天后 ,细胞形态发生显著变化 ,表现为明显分化 ;出现神经原性表型 ,多个细胞形成神经节 ,节间形成粗而长的类神经纤维 ;尼氏小体和银染法亦证明SK N SH细胞产生显著分化。透射电镜观察结果表明 ,ATRA对该细胞无明显凋亡诱导作用。ATRA对SK N SH细胞的维甲酸受体 β(RARβ)表达水平有上调作用。[结论]ATRA对神经母细胞瘤细胞体外能产生明显诱导分化作用 ,此作用与ATRA上调细胞的RARβ展开更多
基金Supported by National Natural Science Foundation of China(No.81300727)Jilin University Basic Scientific Research Operating Expenses Fund(Research Fund of the Bethune B Plan of Jilin University,2012No.2012230)
文摘·Fungal keratitis(FK) is a worldwide visual impairment disease. This infectious fungus initiates the primary innate immune response and, later the adaptive immune response. The inflammatory process is related to a variety of immune cells, including macrophages, helper T cells, neutrophils, dendritic cells, and Treg cells, and is associated with proinflammatory, chemotactic and regulatory cytokines. All-trans retinoic acids(ATRA)have diverse immunomodulatory actions in a number of inflammatory and autoimmune conditions. These retinoids regulate the transcriptional levels of target genes through the activation of nuclear receptors.Retinoic acid receptor α(RAR α), retinoic acid receptor γ(RAR γ), and retinoid X receptor α(RXR α) are expressed in the cornea and immune cells. This paper summarizes new findings regarding ATRA in immune and inflammatory diseases and analyzes the perspective application of ATRA in FK.
文摘Objective: To investigate the relationship among glucocorticoid receptor (GCR) level, immunological classification and clinical efficacy of chemotherapy in acute lymphoblastic leukemia (ALL) children. Methods: The GCR level of venous blood lymphocytes was measured by receptor radioligand binding assay in 50 cases with childhood ALL and 41 normal children. The immunological classification of 32 children with ALL was analyzed by ABC immunoenzymatic method. Results: The GCR number in venous blood lymphocytes of normal children was 4651±1617 binding sites/cell. The normal range (95%) was 1482–7800 binding sites/cell. The GCR level of 50 cases with ALL (6695±5256 binding sites/cell) was significantly higher than that of the normal ones (t=2.50, P<0.05). The GCR level of the ALL children with good prognosis was significantly higher than that of bad prognosis (t=4.39, P<0.001). The relationship between immunological classification and GCR level of 32 cases with children ALL was as follows: GCR level of T-ALL and B-ALL were significantly lower than AUL, C-ALL and pre-B-ALL; the prognosis of T-ALL and B-ALL was also bad; the GCR level of the group with good prognosis was significantly higher than that with bad prognosis in all immunological types. Conclusion: The GCR level of the peripheral venous blood lymphocytes in children ALL may be an important biochemistry indicator and used to predict prognosis and guide combination chemotherapy. The relationship between GCR and immunological classification can be useful to the expectation of prognosis.
文摘目的:探索CD19 CAR-T细胞治疗复发/难治性B-ALL后细胞因子水平的变化及其临床意义。方法:选取2015年8月至2018年2月我院血液科接受CD19 CAR-T细胞治疗的复发/难治性B-ALL患者23例,应用CBA技术和免疫比浊法检测输注前后血清中IL-6、IFN-γ、IL-10、TNF-α和CRP水平。然后根据CTCAE v4.0将发生CRS的患者分为轻度CRS组(1~2级)和重度CRS组(3~5级),比较两组细胞因子水平的差异及治疗反应。结果:①CD19 CAR-T细胞输注前后患者血清中IL-6(2.00~28.50 vs 34.50~112.00)、IFN-γ(2.13~3.12 vs 4.35~10.07)、IL-10(1.00~1.80 vs 4.01~39.92)、TNF-α(2.91~4.60 vs 4.99~40.18)差异均具有统计学意义(P=0.000,0.000,0.001,0.002);②轻度CRS组和重度CRS患者相比,血清中IL-6(28.75~61.25 vs 91.00~1 074.00)、IFN-γ(3.93~7.28 vs 12.53~15.30)、IL-10(3.13~7.47 vs 39.92~84.97)、TNF-α(4.60~15.77 vs 40.18~62.51)和CRP(4.95~46.86 vs 37.81~120.17)差异均具有统计学意义(P=0.004、0.004、0.003、0.000、0.045);③CD19 CAR-T治疗后完全缓解(包括血象未完全恢复患者)组与未缓解组间上述细胞因子与CRP水平均差异无统计学意义;④IL-6显著升高的重度CRS患者,应用IL-6受体拮抗剂治疗后均好转。结论:IL-6、IFN-γ、IL-10、TNF-α细胞因子的水平可作为判断CRS严重程度的实验室参考指标,并可指导临床靶向选择细胞因子拮抗剂,但对CD19 CAR-T疗效预测价值有待进一步验证。
文摘All-trans retinoic acid (ATRA) triggers a wide range of effects on vertebrate development by regulating cell proliferation, differentiation, and apoptosis. ATRA activates retinoic acid receptors (RARs) which heterodimerize with retinoid X receptors (RXRs). RAR/RXR heterodimers function as ATRA-dependent transcriptional regulators by binding to retinoic acid response elements (RAREs). To identify RAR/RXR heterodimer-binding sites in the human genome, we performed a modified yeast one-hybrid assays and identified 193 RAR/RXR heterodimer-binding fragments in the human genome. The putative target genes included genes involved in development process and cell differentiation. Gel mobility shift assays indicated that 160 putative RAREs could directly interact with the RAR/RXR heterodimer. Moreover, 19 functional regulatory single nucleotide polymorphisms (rSNPs) on the RAR/RXR-binding sequences were identified by analyzing the difference in the DNA-binding affinities. These results provide insights into the molecular mechanisms underlying the physiological and pathological actions of RAR/RXR heterodimers.
文摘[目的]观察全反式维甲酸(alltransretinoicacid,ATRA)体外对人神经母细胞瘤细胞系SK N SH细胞生长的影响并对其作用机制进行初步探讨。[方法]SK N SH细胞经ATRA处理后 ,采用相差显微镜、神经纤维银染法、透射电镜观察、逆转录PCRmRNA检测等手段 ,观察ATRA对SK N SH细胞生长的影响。[结果]ATRA作用SK N SH细胞12天后 ,细胞形态发生显著变化 ,表现为明显分化 ;出现神经原性表型 ,多个细胞形成神经节 ,节间形成粗而长的类神经纤维 ;尼氏小体和银染法亦证明SK N SH细胞产生显著分化。透射电镜观察结果表明 ,ATRA对该细胞无明显凋亡诱导作用。ATRA对SK N SH细胞的维甲酸受体 β(RARβ)表达水平有上调作用。[结论]ATRA对神经母细胞瘤细胞体外能产生明显诱导分化作用 ,此作用与ATRA上调细胞的RARβ
