1.Genetically-modified, redirected T cells target hepatitis B surface antigen-positive hepatocytes and hepatocellular carcinoma lesions in a clinical setting
Xueshuai WAN ; Karin WISSKIRCHEN ; Tao JIN ; Lu YANG ; Xiaorui WANG ; Xiang’an WU ; Fang LIU ; Yu WU ; Christy MA ; Yong PANG ; Qi LI ; Ke ZHANG ; Ulrike PROTZER ; Shunda DU
Clinical and Molecular Hepatology 2024;30(4):735-755
Background/Aims:
Hepatitis B virus (HBV)-DNA integration in HBV-related hepatocellular carcinoma (HBV-HCC) can be targeted by HBV-specific T cells. SCG101 is an autologous, HBV-specific T-cell product expressing a T-cell receptor (TCR) after lentiviral transduction recognizing the envelope-derived peptide (S20-28) on HLA-A2. We here validated its safety and efficacy preclinically and applied it to an HBV-related HCC patient (NCT05339321).
Methods:
Good Manufacturing Practice-grade manufactured cells were assessed for off-target reactivity and functionality against hepatoma cells. Subsequently, a patient with advanced HBV-HCC (Child-Pugh class A, Barcelona Clinic Liver Cancer stage B, Eastern Cooperative Oncology Group performance status 0, hepatitis B e antigen-, serum hepatitis B surface antigen [HBsAg]+, HBsAg+ hepatocytes 10%) received 7.9×107 cells/kg after lymphodepletion. Safety, T-cell persistence, and antiviral and antitumor efficacy were evaluated.
Results:
SCG101, produced at high numbers in a closed-bag system, showed HBV-specific functionality against HBV-HCC cells in vitro and in vivo. Clinically, treatment was well tolerated, and all adverse events, including transient hepatic damage, were reversible. On day 3, ALT levels increased to 1,404 U/L, and concurrently, serum HBsAg started decreasing by 3.84 log10 and remained <1 IU/mL for over six months. HBsAg-expressing hepatocytes in liver biopsies were undetectable after 73 days. The patient achieved a partial response according to modified RECIST with a >70% reduction in target lesion size. Transferred T cells expanded, developed a stem cell-like memory phenotype, and were still detectable after six months in the patient’s blood.
Conclusions
SCG101 T-cell therapy showed encouraging efficacy and safety in preclinical models and in a patient with primary HBV-HCC and concomitant chronic hepatitis B with the capability to eliminate HBsAg+ cells and achieve sustained tumor control after single dosing.
2.The effect of artificial oocyte activation on the short- and long-term development of offspring
Shuming SHAO ; Yimin ZHANG ; Xiaorui ZHANG ; Fang FANG ; Qun LU ; Jie LIU ; Chaomei ZENG
Chinese Journal of Applied Clinical Pediatrics 2022;37(17):1355-1357
Intracytoplasmic sperm injection (ICSI) is an important treatment option for male infertility at pre-sent.However, a few patients still suffer from repeated ICSI fertilization failure because their sperm is unable to activate oocytes.Artificial oocyte activation (AOA) technology can improve the fertilization rate, pregnancy rate, live birth rate, etc., but it remains unknown whether AOA has short- and long-term effect on offspring.In this article, recent literature about the effect of AOA technology on perinatal outcomes, genetics, physical development and neurological development of offspring was summarized.This paper aims to provide reference for reproductive medicine workers and pediatricians in clinical practice.
3.Effect of rTMS combined with CBT on alcohol craving and cognitive function in patients with alcohol dependence
Chang CHENG ; Hongxuan WANG ; Weibian YANG ; Xiaohong WANG ; Chuanyi KANG ; Xiaorui HU ; Jia LU ; Huaizhi WANG ; Na ZHAO ; Xiaohe FAN ; Mei YANG ; Jianzhong YANG ; Yanjie JIA ; Yingjie ZHANG ; Xuhui ZHOU ; Lei LIU ; Yong CHI ; Ying PENG ; Jian HU
Chinese Journal of Behavioral Medicine and Brain Science 2022;31(8):685-691
Objective:To explore the effect of repetitive transcranial magnetic stimulation (rTMS) combined with cognitive behavioral therapies (CBT) on the cognitive function and alcohol craving in patients with alcohol dependence.Methods:From March 2019 to September 2021, a total of 150 patients with alcohol dependence were enrolled and randomly divided into rTMS treatment group (rTMS+ sham CBT, n=41), CBT treatment group (CBT+ sham rTMS, n=34), rTMS+ CBT treatment group( n=36) and control group (sham rTMS+ sham CBT, n=39). At baseline (before treatment), 2nd week, 8th week, 12th week and 24th week, alcohol dependence scale (ADS) was used to evaluate the degree of alcohol dependence, the obsessive compulsive drinking scale (OCDS) was used to assess patients' drinking craving, and Montreal cognitive assessment scale (MoCA) was used to assess the overall cognitive level of patients.SPSS 23.0 statistical software was used to compare the differences of ADS, OCDS and MoCA scale scores of the four groups by repeated measure ANOVA and simple effect analysis. Results:(1)The patients in the four groups were evaluated with ADS scale at baseline, 12th week and 24th week respectively.The interaction of group×time( F=1.279, P=0.279) and the main effect of group were not significant ( F=0.882, P=0.454), and the main effect of time was significant ( F=12.925, P<0.001) .Further simple effect analysis showed that the ADS score of rTMS+ CBT group was lower than that of baseline(14.48±5.70, 10.00±6.51) ( P=0.01) at 24th week.(2)Patients in the four groups were assessed with OCDs scale at baseline, 2nd week, 8th week, 12th week and 24th week, and the interaction of group×time was significant ( F=2.015, P=0.042). Further simple effect analysis showed that the OCDs scores of rTMS group and rTMS+ CBT group at each follow-up time node were lower than those at baseline period (all P<0.05). (3)Patients in the four groups were assessed with MoCA scale at baseline, 8th week, 12th week and 24th week, and the interaction of group×time was not significant ( F=1.660, P=0.106), and the main effect of group and the main effect of time were significant ( F=2.964, P=0.038; F=14.239, P<0.001). Further simple effect analysis showed that the score of MoCA scale in CBT group at the 24th week was higher than that at baseline (21.73±5.81, 24.60±3.98)( P=0.029), the score of MoCA scale in rTMS+ CBT group at the 24th week was higher than that at the 8th week (23.50±6.01, 25.95±2.87) ( P=0.006), and the score of MoCA scale in rTMS group at the 12th week was higher than that in control group (22.08±6.64, 26.64±2.46)( P=0.009). Conclusion:rTMS combined with CBT can be effective in improving alcohol craving and cognitive function in patients with alcohol dependence, and has a good long-term effect.
4.Advances in gene editing of Corynebacterium glutamate.
Juanjuan YANG ; Xiaoyu MA ; Xiaorui WANG ; Zhaohui ZHANG ; Shan WANG ; Huimin QIN ; Shuhong MAO ; Fuping LU
Chinese Journal of Biotechnology 2020;36(5):820-828
Corynebacterium glutamicum, an important microorganism to produce amino acids and organic acids, has been widely applied in food and medicine fields. Therefore, using editing tools to study the function of unknown genes in C. glutamicum has great significance for systematic development of industrial strain with efficient and novel production capability. Recently, gene editing has been greatly developed. Traditional gene editing based on homologous recombination and gene editing mediated by nuclease are successfully applied in C. glutamicum. Among these, the CRISPR system has been developed to be a main tool used for gene knockout of C. glutamicum due to its advantages of efficiency, simplicity and good target specificity. However, more efficient and reliable knockout system is still urgently demanded, to help develop high-performing strains in industrial application.
CRISPR-Cas Systems
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Clustered Regularly Interspaced Short Palindromic Repeats
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Corynebacterium glutamicum
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genetics
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Gene Editing
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trends
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Glutamic Acid
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Industrial Microbiology
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trends
5. Outcomes of 33 patients with anaplastic large cell lymphoma treated after hematopoietic stem cell transplantation
Ning LU ; Xiaofan LI ; Yujun DONG ; Yini WANG ; Xiaorui FU ; Yamei WU ; Yuhang LI ; Maihong WANG ; Nainong LI ; Hanyun REN ; Zhao WANG ; Mingzhi ZHANG ; Xiaoxiong WU ; Liangding HU ; Yao LIU ; Wenrong HUANG
Chinese Journal of Hematology 2020;41(2):117-122
Objective:
To explore the efficacy and prognostic factors of hematopoietic stem cell transplantation (HSCT) for the treatment of patients with anaplastic large cell lymphoma (ALCL) .
Methods:
The clinical records of 33 ALCL patients after HSCT were collected and analyzed retrospectively to evaluate the rates of overall survival (OS) and recurrence after autologous (auto-HSCT) and allogeneic HSCT (allo-HSCT) and the factors influencing prognosis.
Results:
The median-age of this cohort of 33 ALCL cases at diagnosis was 31 (12-57) years old with a male/female ratio of 23/10, 24 cases (72.7%) were ALK+ and 9 ones (27.3%) ALK-. Of them, 25 patients (19 ALK+ and 6 ALK-) underwent auto-HSCT and 8 cases (5 ALK+ and 3ALK-) allo-HSCT with a median follow-up of 18.7 (4.0-150.0) months. Disease states before HSCT were as follows: only 6 patients achieved CR status and received auto-HSCT, 16 patients achieved PR (14 cases by auto-HSCT and 2 ones allo-HSCT) , the rest 11 cases were refractory/relapse (5 cases by auto-HSCT and 6 ones allo-HSCT) . There were 7 cases died of disease progression (5 after auto-HSCT and 2 allo-HSCT) and 5 cases treatment-related mortality (TRM) (2 after auto-HSCT and 3 allo-HSCT) , TRM of two groups were 8.0% and 37.5%, respectively. Both the median progression-free survival (PFS) and OS were 15 months after auto-HSCT, the median PFS and OS after allo-HSCT were 3.7 (1.0-90.0) and 4.6 (1.0-90.0) months, respectively. There was no statistically significant difference in terms of survival curves between the two groups (OS and PFS,
6.Development on Visuo-haptic Augmented Reality in Rehabilitation for Upper Extremities and Hands (review)
Jia LIU ; Jingjing ZHANG ; Xu CHEN ; Xiaorui ZHANG ; Xiong LU
Chinese Journal of Rehabilitation Theory and Practice 2018;24(5):544-548
Visuo-haptic augmented reality is an active research topic in the field of human-computer interaction, which helps to enhance the patient's realism when it is applied in the field of upper limb rehabilitation. In this paper, several existing visuo-haptic augmented reality systems on rehabilitation were compared and analyzed from the aspects of system composition, interaction modes and applicable objects.
7.Impact of Valsartan on Sarcoplasmic Reticulum Ryanodine Receptor2 in Myocardiocyte of Heart Failure Rabbits
Fuzheng QU ; Xiaolu ZHANG ; Jingwu SUN ; Xianliang LIU ; Dong WANG ; Mengsong SHI ; Xiuhua WANG ; Aiyan QU ; Xinlei LU ; Hongxia ZHOU ; Lin CHENG ; Haofei KANG ; Xiaorui YI ; Jing LIU
Chinese Circulation Journal 2017;32(4):390-394
Objective: To explore sarcoplasmic reticulum ryanodine receptor2 (RyR 2) expression and calcium releasing function in chronic heart failure (CHF) rabbits and to study the impact of long term valsartan treatment in relevant animals. Methods: HF model was established by volume overloading with pressure overloading in experimental rabbits. 27 rabbits were divided into 3 groups: Sham group, HF group and HF+valsartan group. n=9 in each group and the animals were treated for 7 weeks. Left ventricular structure, hemodynamic parameters, expression and functional changes of myocardiocyte sarcoplasmic reticulum RyR 2 were observed and compared among different groups. Results: Compared with Sham group, HF group had increased left ventricular mess index (LVMI), left ventricular end diastolic pressure (LVEDP) and decreased left ventricular shortening fraction, LVEF, all P<0.05. Compared with HF group, HF+valsartan group showed decreased LVMI, LVEDP and increased left ventricular shortening fraction, LVEF, all P<0.05. Sarcoplasmic reticulum RyR 2 expression and calcium releasing function were lower in HF group than Sham group, P<0.05; while they were both higher in HF+valsartan group than HF group, P<0.05. Conclusion: Long term application of valsartan could improve the cardiac function which might be related to increased myocardial sarcoplasmic reticulum RyR 2 expression and calcium releasing function in experimental CHF rabbits.
8.Case report and literature review of dental original cutaneous sinus tract
Xiaorui GUO ; Wenyue CHANG ; Qun LU ; Qianjuan YANG ; Qingxia BAI ; Zhaojuan LIU
Journal of Practical Stomatology 2016;32(1):48-52
Objective:To study the clinical characteristics of odontogenic cutaneous fistula.Methods:6 cases of odontogenic cutane-ous fistula were represented and the reports of 60 cases of the lesion were reviewed.Results:The fistula was mainly located in cheek, chin,para-nasal part,sub-mandibular area and the lower border of the mandible,and respectively corresponding to mandibular third molar,mandibular incisor,maxillary canine,mandibular first and second molar,the corresponding teeth were mainly in mandible (71 .2%).In middle and old aged patients the lesion usually in para-nasal or mandible area,In younger patients the lesion mostly loca-ted in cheek or sub-mandibular area.After root canal therapy for the teeth with apical periodontitis or extraction of none-curable teeth,the odontogenic cutaneous sinus tract disappeared.Conclusion:Proper treatment of focal teeth can cure the odontogenic cutaneous fistulas.
9.The effects of miR-20a on the osteogenic differentiation potential of the inflammatory PDLSCs
Qianjuan YANG ; Wenjia LIU ; Wenyue CHANG ; Xiaorui GUO ; Hong WANG ; Qi CHEN ; Qun LU
Journal of Practical Stomatology 2016;32(2):186-189
Objective:To study the effects of miR-20a on the osteogenic differentiation potential of inflammatory periodontal liga-ment cells(IPDLSCs).Methods:Cells were isolated and cultured from the healthy and inflammatory periodontal ligament samples (HPDLSCs and IPDLSCs)respectively.miR-20a expression was analyzed by qRT-PCR.Alizarin red staining,Western blot and PCR were used to evaluate the osteogenic differentiation potential of IPDLSCs after transient transinfection of miR-20a mimics or inhib-itor.Results:miR-20a expression in IPDLSCs was lower than that in HPDLSCs,and the osteogenic differentiation potential of IP-DLSCs were promoted by miR-20a mimics,and reduced by miR-20a inhibitor.Conclusion:The miR-20a in IPDLSCs was down reg-ulated.miR-20a can promote the osteogenic differentiation potential of IPDLSCs.
10.Research on the medical insurance system and operating mode in South Korea
Feng CHANG ; Meiyan JI ; Yun LU ; Penglei CUI ; Xiaorui ZHU
Chinese Journal of Health Policy 2015;8(12):41-46
Objectives To provide reference for the improve of health care system and healthcare insurance con-trolling method, through researching on the value-based healthcare paying system in South Korea. Methods The basic characteristics of the Korean health care system was researched, Specifically, its reform experiences of value-based health insurance review and assessment paying system,which government took. Results South Korea’s health care pay-ing system had achieved both good social and policy effects. Conclusions Value-based health care paying system is the main reason for the reducing of health care expenditures and making of scientific health policy.

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