Juvenile idiopathic arthritis (JIA) is one of the most common chronic inflammatory rheumatic diseases in children,with onset before age 16 and lasting for more than 6 weeks.JIA is a highly heterogeneous condition with...Juvenile idiopathic arthritis (JIA) is one of the most common chronic inflammatory rheumatic diseases in children,with onset before age 16 and lasting for more than 6 weeks.JIA is a highly heterogeneous condition with various consequences for health and quality of life.For some JIA patients,early detection and intervention remain challenging.As a result,further investigation of the complex and unknown mechanisms underlying JIA is required.Advances in technology now allow us to describe the biological heterogeneity and function of individual cell populations in JIA.Through this review,we hope to provide novel ideas and potential targets for the diagnosis and treatment of JIA by summarizing the current findings of single-cell RNA sequencing studies and understanding how the major cell subsets drive JIA pathogenesis.展开更多
Objective:To retrospectively investigate the clinicopathological characteristics of ovarian juvenile granulosa cell tumors(JGCTs)and to evaluate the safety of fertility-sparing surgery.Methods:In this study,surgically...Objective:To retrospectively investigate the clinicopathological characteristics of ovarian juvenile granulosa cell tumors(JGCTs)and to evaluate the safety of fertility-sparing surgery.Methods:In this study,surgically treated patients with JGCTs diagnosed between January 2004 and October 2018 in our center were identified.Clinicopathological data,survival outcomes,and recurrence rates were examined in these patients.Results:A total of 8 patients were included.All patients were premenarchal girls or young women(age range,9-32 years).Irregular vaginal bleeding was the most common presenting symptom.Of them,seven patients were classified with Stage I JGCTs,and they underwent fertility-sparing surgery.One patient who had Stage IIIC JGCT and had completed childbearing underwent complete surgery.Seven patients received adjuvant chemotherapy.The median follow-up duration in the total cohort was 64 months(range,2-117 months).The overall survival rate in the fertility-sparing group was 100%,whereas the patient with Stage IIIC JGCT died 1 month after the treatment.Conclusions:Fertility-sparing surgery might not show a negative impact on oncologic outcomes.Fertility sparing could be considered a modified option for patients with Stage I JGCTs.However,due to the limited number of patients,the conclusion must be interpreted with caution,and larger or multicenter studies are needed before conclusions can be drawn.展开更多
To validate the protective efficacy against schistosomiasis by immunization with cells from juvenile Schistosoma japonicum in a murine model; to analyze possible factors related to protection, in this study, two indep...To validate the protective efficacy against schistosomiasis by immunization with cells from juvenile Schistosoma japonicum in a murine model; to analyze possible factors related to protection, in this study, two independent repeated vaccination trials were performed. After three subcutaneous vaccinations, in trial one, in the absence of adjuvant, primary juvenile worm cells (pJCs) from S. japonicum induced remarkable average reductions in worm burden (54.3%), liver eggs per gram (LEPG) load (59.8%) as well as egg granulomas size (66.5%) compared to PBS control group (P【0.01), which were significantly higher than those elicited by fractions of juvenile worm cells (JCFs) or fractions of juvenile worms (JWFs) (P【0.05). Non-cell components of worms (WNCs) showed no significant protection. In trial two, compared to PBS control group, significant protective effect was also observed for cultured juvenile worm cells (cJCs) from S. japonicum with 58.4% worm reduction; 68.1% LEPG reduction (P【0.01). However, cultured adult worms cells (cACs) showed significantly higher worm burden (P【0.05); egg burden (P【0.01) when compared to cJCs. Immunological analysis of trial two revealed that cJCs engendered a Th1-biased mixed Th1/Th2 type of immune response while cACs elicited a Th2-type response. Our data indicated that immunization with both primary; cultured cells from S. japonicum juvenile worms provided high immunoprotection, for which the physical character of immunogens, stage-specific parasite; the type of immune response induced might be responsible, suggesting that vaccination with whole cells from S. japonicum larvae is a promising approach to produce protective immunity against schistosomiasis.展开更多
目的分析T细胞活化免疫球蛋白抑制V型结构域(V-domain Ig suppressor of T cell activation,VISTA)在幼年特发性关节炎(juvenile idiopathic arthritis,JIA)患儿外周血的表达情况,探讨其在发病中的作用。方法前瞻性收集不同亚型JIA患儿...目的分析T细胞活化免疫球蛋白抑制V型结构域(V-domain Ig suppressor of T cell activation,VISTA)在幼年特发性关节炎(juvenile idiopathic arthritis,JIA)患儿外周血的表达情况,探讨其在发病中的作用。方法前瞻性收集不同亚型JIA患儿(47例)及健康儿童(10例)的外周血,利用流式细胞术检测CD14+单核细胞、CD4+T淋巴细胞、CD8+T淋巴细胞上VISTA、干扰素-γ(interfern-γ,IFN-γ)、肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)的表达情况。结果VISTA在JIA患儿中的表达水平比健康儿童低(P<0.05);不同亚型JIA患儿VISTA表达差异有统计学意义,以全身型表达水平最低(P<0.05);不同免疫细胞表达VISTA差异有统计学意义,单核细胞表面VISTA表达水平更高(P<0.05)。相关性分析发现CD4+T细胞上VISTA与IFN-γ(r=-0.436,P<0.05)、TNF-α(r=-0.382,P<0.05)表达呈负相关,CD8+T细胞上VISTA与IFN-γ(r=-0.348,P<0.05)、TNF-α(r=-0.487,P<0.05)表达呈负相关;CD14+单核细胞上VISTA与IFN-γ(r=-0.582,P<0.05)、TNF-α(r=-0.603,P<0.05)表达呈负相关。结论VISTA表达不足可能与JIA发病相关,增强VISTA的免疫调节作用可能是未来治疗JIA的途径之一。展开更多
基金supported by grants from the National Key R&D Program of China(No.2021YFC2702003).
文摘Juvenile idiopathic arthritis (JIA) is one of the most common chronic inflammatory rheumatic diseases in children,with onset before age 16 and lasting for more than 6 weeks.JIA is a highly heterogeneous condition with various consequences for health and quality of life.For some JIA patients,early detection and intervention remain challenging.As a result,further investigation of the complex and unknown mechanisms underlying JIA is required.Advances in technology now allow us to describe the biological heterogeneity and function of individual cell populations in JIA.Through this review,we hope to provide novel ideas and potential targets for the diagnosis and treatment of JIA by summarizing the current findings of single-cell RNA sequencing studies and understanding how the major cell subsets drive JIA pathogenesis.
文摘Objective:To retrospectively investigate the clinicopathological characteristics of ovarian juvenile granulosa cell tumors(JGCTs)and to evaluate the safety of fertility-sparing surgery.Methods:In this study,surgically treated patients with JGCTs diagnosed between January 2004 and October 2018 in our center were identified.Clinicopathological data,survival outcomes,and recurrence rates were examined in these patients.Results:A total of 8 patients were included.All patients were premenarchal girls or young women(age range,9-32 years).Irregular vaginal bleeding was the most common presenting symptom.Of them,seven patients were classified with Stage I JGCTs,and they underwent fertility-sparing surgery.One patient who had Stage IIIC JGCT and had completed childbearing underwent complete surgery.Seven patients received adjuvant chemotherapy.The median follow-up duration in the total cohort was 64 months(range,2-117 months).The overall survival rate in the fertility-sparing group was 100%,whereas the patient with Stage IIIC JGCT died 1 month after the treatment.Conclusions:Fertility-sparing surgery might not show a negative impact on oncologic outcomes.Fertility sparing could be considered a modified option for patients with Stage I JGCTs.However,due to the limited number of patients,the conclusion must be interpreted with caution,and larger or multicenter studies are needed before conclusions can be drawn.
基金Supported by the National Natural Science Foundation of China (Grant No. 30570952)
文摘To validate the protective efficacy against schistosomiasis by immunization with cells from juvenile Schistosoma japonicum in a murine model; to analyze possible factors related to protection, in this study, two independent repeated vaccination trials were performed. After three subcutaneous vaccinations, in trial one, in the absence of adjuvant, primary juvenile worm cells (pJCs) from S. japonicum induced remarkable average reductions in worm burden (54.3%), liver eggs per gram (LEPG) load (59.8%) as well as egg granulomas size (66.5%) compared to PBS control group (P【0.01), which were significantly higher than those elicited by fractions of juvenile worm cells (JCFs) or fractions of juvenile worms (JWFs) (P【0.05). Non-cell components of worms (WNCs) showed no significant protection. In trial two, compared to PBS control group, significant protective effect was also observed for cultured juvenile worm cells (cJCs) from S. japonicum with 58.4% worm reduction; 68.1% LEPG reduction (P【0.01). However, cultured adult worms cells (cACs) showed significantly higher worm burden (P【0.05); egg burden (P【0.01) when compared to cJCs. Immunological analysis of trial two revealed that cJCs engendered a Th1-biased mixed Th1/Th2 type of immune response while cACs elicited a Th2-type response. Our data indicated that immunization with both primary; cultured cells from S. japonicum juvenile worms provided high immunoprotection, for which the physical character of immunogens, stage-specific parasite; the type of immune response induced might be responsible, suggesting that vaccination with whole cells from S. japonicum larvae is a promising approach to produce protective immunity against schistosomiasis.
