1.Predictive value of early gastric cancer model for disease progression in high-risk pop-ulations
Sun SHUSHEN ; Song RUI ; Li XUE ; Lv HONGMIN
Chinese Journal of Clinical Oncology 2024;51(5):231-235
Objective:To assess the value of a model based on helicobacter pylori(Hp)status and peripheral blood levels of pepsinogen Ⅰ(PGⅠ),PGⅡ,and gastrin-17(G-17)for predicting disease progression in high-risk populations for gastric cancer.Methods:Retrospective se-lection of clinical data from 126 high-risk individuals for gastric cancer who underwent PGⅠ,PGⅡ,G-17,and C14 urea breath tests and gastro-scopy tissue biopsy at Tianjin University Jinnan Hospital from January 2023 to January 2024,Based on pathological biopsy results using gast-ric cancer tissues obtained by gastroscopy,the high-risk population for gastric cancer was assigned into normal control,precancerous lesion,and early gastric cancer groups.The diagnostic efficacies of PGⅠ,PGⅡ,G-17,C14 urea breath,and other indicators in each patient group were determined,and a predictive model was constructed.Results:The HP-positivity rate(82.35%)and PGⅡ level(22.73 ng/mL)in the early gastric cancer group were higher than those in the precancerous lesion and control groups.The PGI level(51.36 ng/mL)was lower in early gastric cancer than in precancerous lesions and control tissues.The G-17 level(5.17 pmol/L)was lower in the precancerous lesion group than in the control and early gastric cancer groups(P<0.05).Combined use of PGⅠ、PGⅡ、G-17and Hp,the area under curve(AUC)can reach 0.899,a sensitivity of 94.12%,and a specificity of 95.65%,making these factors ideal diagnostic tools for gastric cancer.According to the prediction model,the threshold for precancerous lesions was 10 points,and the critical value for early cancer was 19 points.Conclu-sions:Implementation of the C14 urea breath test combined with PGⅠ,PGⅡ,and G-17 detection in high-risk populations for gastric cancer can help monitor disease progression in high-risk populations for gastric cancer.
2.Epidemiological Characteristics of Lung Cancer Incidence in the Tumor Registration Area of Gansu Province from 2010 to 2019
LU ZHAOXIA ; MA JIXIONG ; MA JUHONG ; ZHOU HONG ; XUE JUANJUAN ; DING GAOHENG ; WANG YINDI ; LV ZHEN ; LIU YUQIN ; WANG BEN ; CHEN LILI
Chinese Journal of Lung Cancer 2024;27(2):88-95
Background and objective Lung cancer is the malignant tumor with the highest incidence rate and the heaviest disease burden in China.In recent years,lung cancer has shown a high incidence trend,seriously affecting the health of the population.In this paper,we analyze the characteristics of lung cancer incidence in 2019 and the trend of incidence rate from 2010-2019 in the tumor registration area of Gansu province,in order to provide a reference basis for the development of lung cancer prevention and control strategies in Gansu province.Methods By analyzing the cases of lung cancer incidence in the tumor registration area of Gansu province in 2019,we calculated the incidence rate,medium incidence rate,world in-cidence rate and other related indexes;we used Joinpoint to calculate the annual percentage change(APC)for trend analysis.Results In 2019,a total of 3757 new cases of lung cancer were reported in Gansu province,accounting for 14.96%of all new malignant tumors.The incidence rate,medium incidence rate and world incidence rate and world rate of lung cancer were 40.52/105,25.78/105,25.86/105;and the cumulative rate of 0-74 years old,and the truncation rate of 35-64 years old were 3.23%,40.03/105,respectively.The incidence of lung cancer rises with age,and is high in the age group of 40 years and above,and the incidence peaks in the male and female populations in the group of 75 years and above,and the group of 80 years and above,respectively.The crude incidence rate of lung cancer in the tumor registration area of Gansu province from 2010-2019 showed an overall increasing trend,and the rate of increase was relatively fast,with an APC 5.39%(P<0.05);Separately,accord-ing to gender,urban and rural areas,the incidence of lung cancer in all populations showed an increasing trend,and the APC of male,female,urban and rural populations were 4.98%,6.39%,6.26%,and 4.64%,respectively(all P<0.05).According to the trend analysis of lung cancer incidence rate by age group,only lung cancer incidence in the age group of 65 years and above increased at an annual average rate of 4.15%(P<0.05).Conclusion The incidence rate of lung cancer in the tumor registration area of Gansu province from 2010 to 2019 shows a rising trend year by year,and there are differences in the incidence of lung cancer in people of different genders,regions and age groups,so comprehensive prevention and control work should be carried out for the key populations of lung cancer incidence.
3.RBM46 is essential for gametogenesis and functions in post-transcriptional roles affecting meiotic cohesin subunits.
Yue LV ; Gang LU ; Yuling CAI ; Ruibao SU ; Liang LIANG ; Xin WANG ; Wenyu MU ; Xiuqing HE ; Tao HUANG ; Jinlong MA ; Yueran ZHAO ; Zi-Jiang CHEN ; Yuanchao XUE ; Hongbin LIU ; Wai-Yee CHAN
Protein & Cell 2023;14(1):51-63
RBM46 is a germ cell-specific RNA-binding protein required for gametogenesis, but the targets and molecular functions of RBM46 remain unknown. Here, we demonstrate that RBM46 binds at specific motifs in the 3'UTRs of mRNAs encoding multiple meiotic cohesin subunits and show that RBM46 is required for normal synaptonemal complex formation during meiosis initiation. Using a recently reported, high-resolution technique known as LACE-seq and working with low-input cells, we profiled the targets of RBM46 at single-nucleotide resolution in leptotene and zygotene stage gametes. We found that RBM46 preferentially binds target mRNAs containing GCCUAU/GUUCGA motifs in their 3'UTRs regions. In Rbm46 knockout mice, the RBM46-target cohesin subunits displayed unaltered mRNA levels but had reduced translation, resulting in the failed assembly of axial elements, synapsis disruption, and meiotic arrest. Our study thus provides mechanistic insights into the molecular functions of RBM46 in gametogenesis and illustrates the power of LACE-seq for investigations of RNA-binding protein functions when working with low-abundance input materials.
Animals
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Mice
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3' Untranslated Regions/genetics*
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Cell Cycle Proteins/metabolism*
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Gametogenesis/genetics*
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Meiosis/genetics*
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Nuclear Proteins/genetics*
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RNA-Binding Proteins/genetics*
4.S1PR1 serves as a viable drug target against pulmonary fibrosis by increasing the integrity of the endothelial barrier of the lung.
Mengyao HAO ; Rong FU ; Jun TAI ; Zhenhuan TIAN ; Xia YUAN ; Yang CHEN ; Mingjin WANG ; Huimin JIANG ; Ming JI ; Fangfang LAI ; Nina XUE ; Liping BAI ; Yizhun ZHU ; Xiaoxi LV ; Xiaoguang CHEN ; Jing JIN
Acta Pharmaceutica Sinica B 2023;13(3):1110-1127
Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease with unclear etiology and limited treatment options. The median survival time for IPF patients is approximately 2-3 years and there is no effective intervention to treat IPF other than lung transplantation. As important components of lung tissue, endothelial cells (ECs) are associated with pulmonary diseases. However, the role of endothelial dysfunction in pulmonary fibrosis (PF) is incompletely understood. Sphingosine-1-phosphate receptor 1 (S1PR1) is a G protein-coupled receptor highly expressed in lung ECs. Its expression is markedly reduced in patients with IPF. Herein, we generated an endothelial-conditional S1pr1 knockout mouse model which exhibited inflammation and fibrosis with or without bleomycin (BLM) challenge. Selective activation of S1PR1 with an S1PR1 agonist, IMMH002, exerted a potent therapeutic effect in mice with bleomycin-induced fibrosis by protecting the integrity of the endothelial barrier. These results suggest that S1PR1 might be a promising drug target for IPF therapy.
5.Outcomes of allograft from donor kidney microthrombi and secondary recipient thrombotic microangiopathy: should we consider loosening the belt?
Yamei CHENG ; Luying GUO ; Xue REN ; Zhenzhen YANG ; Junhao LV ; Huiping WANG ; Wenhan PENG ; Hongfeng HUANG ; Jianyong WU ; Jianghua CHEN ; Rending WANG
Journal of Zhejiang University. Science. B 2023;24(6):524-529
There is currently a huge worldwide demand for donor kidneys for organ transplantation. Consequently, numerous marginal donor kidneys, such as kidneys with microthrombi, are used to save patients' lives. While some studies have shown an association between the presence of microthrombi in donor kidneys and an increased risk for delayed graft function (DGF) (McCall et al., 2003; Gao et al., 2019), other studies have demonstrated that microthrombi negatively impact the rate of DGF (Batra et al., 2016; Hansen et al., 2018), but not graft survival rate (McCall et al., 2003; Batra et al., 2016; Gao et al., 2019). In contrast, Hansen et al. (2018) concluded that fibrin thrombi were not only associated with reduced graft function six months post-transplantation but also with increased graft loss within the first year of transplantation. On the other hand, Batra et al. (2016) found no significant differences in the DGF rate or one-year graft function between recipients in diffuse and focal microthrombi groups. To date, however, the overall influence of donor kidney microthrombi and the degree of influence on prognosis remain controversial, necessitating further research.
Humans
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Thrombotic Microangiopathies
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Transplantation, Homologous
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Tissue Donors
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Kidney
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Allografts
6.A Virtual Reality Platform for Context-Dependent Cognitive Research in Rodents.
Xue-Tong QU ; Jin-Ni WU ; Yunqing WEN ; Long CHEN ; Shi-Lei LV ; Li LIU ; Li-Jie ZHAN ; Tian-Yi LIU ; Hua HE ; Yu LIU ; Chun XU
Neuroscience Bulletin 2023;39(5):717-730
Animal survival necessitates adaptive behaviors in volatile environmental contexts. Virtual reality (VR) technology is instrumental to study the neural mechanisms underlying behaviors modulated by environmental context by simulating the real world with maximized control of contextual elements. Yet current VR tools for rodents have limited flexibility and performance (e.g., frame rate) for context-dependent cognitive research. Here, we describe a high-performance VR platform with which to study contextual behaviors immersed in editable virtual contexts. This platform was assembled from modular hardware and custom-written software with flexibility and upgradability. Using this platform, we trained mice to perform context-dependent cognitive tasks with rules ranging from discrimination to delayed-sample-to-match while recording from thousands of hippocampal place cells. By precise manipulations of context elements, we found that the context recognition was intact with partial context elements, but impaired by exchanges of context elements. Collectively, our work establishes a configurable VR platform with which to investigate context-dependent cognition with large-scale neural recording.
Animals
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Mice
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Rodentia
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Virtual Reality
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Cognition
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Recognition, Psychology
8.Preclinical and early clinical studies of a novel compound SYHA1813 that efficiently crosses the blood-brain barrier and exhibits potent activity against glioblastoma.
Yingqiang LIU ; Zhengsheng ZHAN ; Zhuang KANG ; Mengyuan LI ; Yongcong LV ; Shenglan LI ; Linjiang TONG ; Fang FENG ; Yan LI ; Mengge ZHANG ; Yaping XUE ; Yi CHEN ; Tao ZHANG ; Peiran SONG ; Yi SU ; Yanyan SHEN ; Yiming SUN ; Xinying YANG ; Yi CHEN ; Shanyan YAO ; Hanyu YANG ; Caixia WANG ; Meiyu GENG ; Wenbin LI ; Wenhu DUAN ; Hua XIE ; Jian DING
Acta Pharmaceutica Sinica B 2023;13(12):4748-4764
Glioblastoma (GBM) is the most common and aggressive malignant brain tumor in adults and is poorly controlled. Previous studies have shown that both macrophages and angiogenesis play significant roles in GBM progression, and co-targeting of CSF1R and VEGFR is likely to be an effective strategy for GBM treatment. Therefore, this study developed a novel and selective inhibitor of CSF1R and VEGFR, SYHA1813, possessing potent antitumor activity against GBM. SYHA1813 inhibited VEGFR and CSF1R kinase activities with high potency and selectivity and thus blocked the cell viability of HUVECs and macrophages and exhibited anti-angiogenetic effects both in vitro and in vivo. SYHA1813 also displayed potent in vivo antitumor activity against GBM in immune-competent and immune-deficient mouse models, including temozolomide (TMZ) insensitive tumors. Notably, SYHA1813 could penetrate the blood-brain barrier (BBB) and prolong the survival time of mice bearing intracranial GBM xenografts. Moreover, SYHA1813 treatment resulted in a synergistic antitumor efficacy in combination with the PD-1 antibody. As a clinical proof of concept, SYHA1813 achieved confirmed responses in patients with recurrent GBM in an ongoing first-in-human phase I trial. The data of this study support the rationale for an ongoing phase I clinical study (ChiCTR2100045380).
9.Establishment of basic principles and methods of acupuncture standardization in traditional Chinese medicine
GUO Yi ; LI Zhenji ; LIU Baoyan ; SANG Binsheng ; FU Qiang ; ZHAO Xue ; CHEN Bo ; CHEN Zelin ; YANG Huayuan ; HE Liyun ; YANG Yi ; LV Zhongqian ; ZHAO Tianyi ; LI Dan ; FU Hua ; YUAN Xinru
Digital Chinese Medicine 2023;6(1):3-8
Standardization is the universal language of the world, and standardization of traditional Chinese medicine (TCM) is essential for its communication in China and globally. However, the principles and methods of TCM acupuncture standardization have been unclear and inadequate in the early stages. Based on an investigative approach to understanding the current status, identifying problems, and finding solutions, our team has established basic principles of TCM acupuncture that embody Chinese wisdom, evaluated the international strategic environment systematically, proposed the principle of “importance of harmony and exercise of impartiality”, and established basic working principles. A series of methods for TCM acupuncture standard development and evaluation have been constructed, including general standards for the revision of TCM acupuncture standards, the first TCM acupuncture clinical research management specification, a shared full chain technology platform, a data center, and an evaluation research base for TCM acupuncture clinical research. Evaluation criteria for ancient literature and expert experience, a recommendation method for the “three main and three auxiliaries” TCM guideline for prevention were established, and quantifiable assessment methods of TCM standard applicability were proposed. These findings provide methodological guidance for TCM acupuncture standardization.
10.PTEN mutation predicts unfavorable fertility preserving treatment outcome in the young patients with endometrioid endometrial cancer and atypical hyperplasia
Yu XUE ; Youting DONG ; Yaochen LOU ; Qiaoying LV ; Weiwei SHAN ; Chao WANG ; Xiaojun CHEN
Journal of Gynecologic Oncology 2023;34(4):e53-
Objective:
This study aimed to investigate the impact of molecular classification and PTEN, KRAS and PIK3CA gene mutation on the outcome of fertility-preserving treatment in the patients with endometrioid endometrial cancer (EEC) and endometrial atypical hyperplasia (EAH).
Methods:
This is a single-center retrospective study. A total of 135 patients with EEC and EAH receiving fertility-preserving treatment and molecular classification were reviewed. The distribution of the four types of molecular classification was described. The impact of non-specific molecular profile (NSMP), mismatch repair-deficiency (MMRd), and PTEN, KRAS and PIK3CA gene mutation on the outcome of fertility-preserving treatment was analyzed.
Results:
Of the patients analyzed, 86.7% (117/136) were classified as having NSMP; 14 (10.4%), MMRd; 1 (0.7%), POLEmut EAH; and 3 (2.2%), p53abn EEC. The patients having NSMP and MMRd achieved similar 16-, 32-, and 48-week complete response rates. The patients harboring tier I and tier II PTEN mutations (PTENmut-Clin) achieved lower cumulative 32-week CR rates than those with PTEN-others (without PTENmut-Clin) (22/47, 46.8% vs. 50/74, 67.6%; p=0.023; odds ratio=0.422; 95% confidence interval [CI]=0.199–0.896). Insulin-resistance (hazard ratio [HR]=0.435; 95% CI=0.269–0.702; p=0.001) and PTENmut-Clin (HR=0.535; 95% CI=0.324–0.885; p=0.015) were independent negative predictors for lower 32-week CR rates.
Conclusion
PTENmut-Clin is an independent risk factor for unfavorable fertility-preserving treatment outcomes in the patients with EEC and EAH. The patients with MMRd receiving fertility-preserving treatment achieved outcomes similar to those of the patients with NSMP. The molecular profiles might guide fertility-preserving treatment in the prognosis and clinical decisions.

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