1.Progress on the role of heat shock proteins and cell apoptosis in inflammatory bowel disease
Junye DU ; Xiaolin YE ; Tianzhuo ZHANG ; Jie WU
International Journal of Pediatrics 2025;52(10):665-670
Inflammatory bowel disease(IBD)is a type of disease characterized by chronic intestinal inflammation,mainly including Crohn's disease,ulcerative colitis,and undifferentiated IBD. Its pathogenesis is very complex and involves multiple factors. In recent years,studies have shown that heat shock proteins(HSPs)and cell apoptosis play important roles in the occurrence and progression of IBD. HSPs not only participate in cellular stress response,but also play a crucial role in regulating cell apoptosis. The specific mechanism of the interaction between HSPs and apoptosis in IBD is currently unclear. This article reviews the relationship and mechanism between HSPs and apoptosis in the occurrence and development of IBD,explores the roles of HSPs and apoptosis in IBD,and proposes potential treatment strategies to provide more effective treatment options for IBD patients in the future.
2.Progress on T lymphocytes in pediatric inflammatory bowel disease
Yan KONG ; Tianzhuo ZHANG ; Jie WU
International Journal of Pediatrics 2024;51(10):649-653
The prevalence of pediatric inflammatory bowel disease(PIBD)is on the rise globally,leading to a significant disease burden.While there is some comprehension of PIBD's causes,the precise mechanisms remain uncertain.Recent studies have increasingly focused on the interplay of genetic susceptibility,environmental factors,and immune response,with particular emphasis on the involvement of T lymphocytes.Investigating the activation,migration and response patterns of T lymphocytes in PIBD holds promise for identifying potential biomarkers and therapeutic targets.This exploration could offer fresh insights for early detection and personalized treatment strategies for children with IBD.This article reviews the pivotal role of T lymphocytes in the development of PIBD,their connection to genetic mutations,and their utility in clinical monitoring,in order to enhance the understanding of PIBD's pathogenesis,and provide reference for both basic research and clinical applications.
3.FERM domain-containing protein FRMD6 activates the mTOR signaling pathway and promotes lung cancer progression.
Tianzhuo WANG ; Huiying GUO ; Lei ZHANG ; Miao YU ; Qianchen LI ; Jing ZHANG ; Yan TANG ; Hongquan ZHANG ; Jun ZHAN
Frontiers of Medicine 2023;17(4):714-728
FRMD6, a member of the 4.1 ezrin-radixin-moesin domain-containing protein family, has been reported to inhibit tumor progression in multiple cancers. Here, we demonstrate the involvement of FRMD6 in lung cancer progression. We find that FRMD6 is overexpressed in lung cancer tissues relative to in normal lung tissues. In addition, the enhanced expression of FRMD6 is associated with poor outcomes in patients with lung squamous cell carcinoma (n = 75, P = 0.0054) and lung adenocarcinoma (n = 94, P = 0.0330). Cell migration and proliferation in vitro and tumor formation in vivo are promoted by FRMD6 but are suppressed by the depletion of FRMD6. Mechanistically, FRMD6 interacts and colocalizes with mTOR and S6K, which are the key molecules of the mTOR signaling pathway. FRMD6 markedly enhances the interaction between mTOR and S6K, subsequently increasing the levels of endogenous pS6K and downstream pS6 in lung cancer cells. Furthermore, knocking out FRMD6 inhibits the activation of the mTOR signaling pathway in Frmd6-/- gene KO MEFs and mice. Altogether, our results show that FRMD6 contributes to lung cancer progression by activating the mTOR signaling pathway.
4.Application value of contrast-enhanced ultrasound in the diagnosis of tuberculous diaphragmatic muscle abscess
Wenzhi ZHANG ; Gaoyi YANG ; Jianping XU ; Jun MENG ; Tianzhuo YU
Chinese Journal of General Practitioners 2015;14(6):453-454
Contrast-enhanced ultrasound images of tuberculous diaphragmatic muscle abscess of 26 surgically confirmed patients were retrospectively analyzed.The coincidence rate of preoperative diagnosis was 77%.The contrast-enhanced ultrasound images could be divided into three types of homogeneous,uneven and non-enhancement.Contrast-enhanced ultrasonography could decipher the blood supply characteristics and the different extents of tuberculous diaphragmatic muscle abscess.Thus it has important diagnostic values in the diagnosis of tuberculous diaphragmatic muscle abscess.
5.The value of contrast-enhanced ultrasound in the diagnosis of tuberculous mesenteric lymphadenitis
Gaoyi, YANG ; Wenzhi, ZHANG ; Jun, LI ; Dan, ZHAO ; Jun, MENG ; Tianzhuo, YU ; Na, FENG
Chinese Journal of Medical Ultrasound (Electronic Edition) 2015;(7):531-535
Objective To investigate the value of contrast-enhanced ultrasonography (CEUS) in the diagnosis of tuberculous mesenteric lymphadenitis by analyzing its enhancement pattern. Methods The conventional ultrasound and contrast-enhanced ultrasound images of 62 patients with tuberculous mesenteric lymphadenitis confirmed by needle core biopsy or surgery were retrospectively analyzed. The location, size, shape, internal echo and posterior enhancement of mesenteric lymph nodes were recorded. All cases were divided into two groups:the maximum diameter of the lymph node≤20 mm and the maximum diameter of the lymph node >20 mm, and the patterns of enhancement in two groups were analyzed. Results The conventional ultrasound of 62 cases with tuberculous mesenteric lymph nodes showed enlargement. And the echogenicity was hypoechoic or heterogeneity, containing punctate or clusters of calcification in 19 cases (30.6%). After CEUS, there were three forms of enhancements:rim enhancement in 29 cases (46.8%);inhomogeneous enhancement in 21cases (33.9%);non-enhancement in 12 cases (19.3%). Rim enhancement was more common in the≤20 mm group, while inhomogeneous enhancement was more common in the lymph nodes>20 mm. There was statistically significant difference of the enhancement type between the≤20 mm group and the>20 mm group (χ2=6.782, P=0.034). Conclusions Most of tuberculous mesenteric lymph nodes showed rim and inhomogeneous enhancement in CEUS, and the sizes of mesenteric lymph node tuberculosis influenced the CEUS enhancement patterns. CEUS may provide useful information for the diagnosis of the tuberculous mesenteric lymph node.

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