1.Targeted therapy and immunotherapy for malignant mesothelioma
Basic & Clinical Medicine 2024;44(10):1342-1349
Malignant mesothelioma(MMe)is a malignant tumor originating from mesothelial tissues,occurring mostly in locations like pleura,pericardium and peritoneum.The extensive research on its treatment has been car-ried on as tackling to the challenge of poor prognosis of the disease.Conventional treatment modalities including sur-gery,chemotherapy and radiotherapy all exhibit limited efficacy,resulting in persistently low survival rates.Hence,exploring novel therapeutic approaches is paramount for improving the prognosis of mesothelioma patients.Targeted therapy and immunotherapy,as emerging cancer treatment modalities,exert their effects by targeting specific mo-lecular markers on tumor cells or immune cells,thus inhibiting tumor growth and metastasis,thereby offering new hope for mesothelioma treatment.This article provides a comprehensive review of recent research progress in targeted therapy and immunotherapy for mesothelioma.
2.Anti-inflammatory Effect and Mechanism of Duhuo Jishengtang on Rheumatoid Arthritis Rats Based on TLR2/p38 MAPK/NF-κB Signaling Pathway
Xiao LIANG ; Yalan LI ; Junhao ZHANG ; Haotian BAI ; Zhan XIAO ; Xin SUN ; Jing YANG ; Rui WANG
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(11):43-52
ObjectiveTo explore the anti-inflammatory effect of Duhuo Jishengtang (DHJST) on collagen-induced arthritis (CIA) model rats and its effect on the Toll-like receptor 2 (TLR2)/p38 mitogen-activated protein kinase (MAPK)/nuclear factor-κB (NF-κB) signaling pathway. MethodForty-eight male SD rats were randomly divided into the following six groups (n=8): normal group, model group, methotrexate (MTX) group, low-dose DHJST (DHJST-L) group, medium-dose DHJST (DHJST-M) group, and high-dose DHJST (DHJST-H) group. The CIA model was established by injecting bovine type Ⅱ collagen into the rat tail root with the collagen antibody induction method. After model induction, rats were treated with drugs by gavage. The rats in the MTX group received MTX at 2.0 mg·kg-1, three times a week, and those in the DHJST groups received DHJST at 3.8, 7.6, 15.2 g·kg-1·d-1 for 28 days. The rats in the normal group and the model group were given the same dose of normal saline. The weight of the rats was recorded, and the paw swelling degree was observed. The arthritis index and immune organ index were measured, and the changes in the microcirculation indexes of the rats were detected with a microcirculation detector. Hematoxylin-eosin (HE) staining was used to detect the pathological morphologic changes in rat synovial tissues and the apoptosis rate of synovial cells was detected by flow cytometry to determine the therapeutic effect of DHJST on rheumatoid arthritis. Enzyme-linked immunosorbent assay (ELISA) was used to detect the changes in serum levels of tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-17A, and interferon-γ (IFN-γ). The protein expression of TLR2, NF-κB p65, phosphorylated NF-κB p65 (p-NF-κB p65), p38 MAPK, and p-p38 MAPK was detected by Western blot. ResultCompared with the normal group, the model group showed reduced body weight (P<0.01), increased paw swelling degree, arthritis index, and immune organ index (P<0.01), increased comprehensive microvascular score and vascular resistance (P<0.01), significant hyperplasia of synovial tissues and massive infiltration of inflammatory cells as revealed by pathological sections, and up-regulated expression levels of TNF-α, IL-1β, IL-17A, and IFN-γ in serum, and TLR2, p-NF-κB p65/NF-κB p65 and p-p38 MAPK/p38 MAPK in synovial tissues (P<0.01). Compared with the model group, the DHJST groups showed increased body weight of rats (P<0.01), decreased paw swelling degree, arthritis index, and immune organ index (P<0.05, P<0.01), reduced comprehensive microvascular score and vascular resistance (P<0.05, P<0.01), improved synovial histopathological injury, increased apoptosis rate of synovial cells (P<0.01), and down-regulated levels of TNF-α, IL-1β, IL-17A, and IFN-γ in serum (P<0.05, P<0.01) and TLR2, p-NF-κB p65/NF-κB p65 and p-p38 MAPK/p38 MAPK in synovial tissues (P<0.05, P<0.01). ConclusionDHJST may alleviate the inflammatory reaction in CIA rats by regulating the TLR2/p38 MAPK/NF-κB signaling pathway, thus exerting its anti-rheumatoid arthritis effect.
3.Safety of minimally invasive liver resection for resectable hepatocellular carcinoma complica-ted with portal hypertension: a multicenter study
Junhao ZHENG ; Guangchao YANG ; Zhanzhi MENG ; Wei CAI ; Li CAO ; Xukun WU ; Yedong LIU ; Mingheng LIAO ; Jieyi SHI ; Xin WANG ; Yao LI ; Qifan ZHANG ; Qiang GAO ; Jiwei HUANG ; Zhibo ZHANG ; Jianwei LI ; Dalong YIN ; Yong MA ; Xiao LIANG
Chinese Journal of Digestive Surgery 2023;22(4):481-488
Objective:To investigate the safety of minimally invasive liver resection for resectable hepatocellular carcinoma (HCC) complicated with portal hypertension.Methods:The propensity score matching and retrospective cohort study was conducted. The clinicopathological data of 807 patients with resectable HCC who underwent minimally invasive liver resection in 8 medical centers, including Sir Run Run Shaw Hospital, Affiliated with the Zhejiang University School of Medicine et al, from June 2011 to November 2022 were collected. There were 670 males and 137 females, aged 58(50,66)years. Of the 807 patients, 173 cases with portal hypertension were divided into the portal hypertension group, and 634 cases without portal hypertension were divided into the non-portal hypertension group. Observation indicators: (1) propensity score matching and comparison of general data of patients between the two groups after matching; (2) intraoperative and post-operative situations; (3) subgroup analysis. Propensity score matching was done by the 1:1 nearest neighbor matching method, with the caliper setting as 0.001. Measurement data with skewed distribution were represented as M( Q1, Q3), and comparison between groups was conducted using the rank sum test. Count data were described as absolute numbers, and comparison between groups was conducted using the chi-square test or Fisher exact probability. Comparison of ordinal data was constructed using the non-parameter rank sun test. Results:(1) Propensity score matching and comparison of general data of patients between the two groups after matching. Of the 807 patients, 268 cases were successfully matched, including 134 cases in the portal hypertension group and 134 cases in the non-portal hypertension group. The elimination of the tumor diameter and robot-assisted surgery confounding bias ensured comparability between the two groups after propensity score matching. (2) Intraoperative and postoperative situations. The occlusion time of porta hepatis, cases with intraoperative blood transfusion, cases with postoperative complication, cases with complication >Ⅱ grade of Clavien-Dindo classification, cases of Clavien-Dindo classification as Ⅰ grade, Ⅱ grade, Ⅲ grade, Ⅳ grade, cases with liver related complication were 27.0(15.0,43.0)minutes, 33, 55, 15, 13, 29, 14, 1, 37 in the portal hypertension group, versus 35.0(22.0,60.0)minutes, 17, 25, 5, 14, 9, 4, 1, 13 in the non-portal hypertension group, showing significant differences in the above indicators between the two groups ( Z=-2.15, χ2=6.30, 16.39, 4.38, 20.72, 14.16, P<0.05). (3) Subgroup analysis. Results of subgroups analysis showed that in cases with major live resection, the operation time, volume of intraoperative blood loss, duration of postoperative hospital stay were 243.5(174.6,296.3)minutes, 200.0(150.0,600.0)mL, 7.5(6.0,13.0)days in the portal hypertension group, versus 270.0(180.0,314.5)minutes, 200.0 (75.0,450.0)mL, 7.0(5.5,10.0)days in the non-portal hypertension group, showing no significant difference in the above indicators between the two groups ( Z=-0.54, -1.73, -0.92, P>0.05). In cases with non-major live resection, the operation time, volume of intraoperative blood loss, duration of postoperative hospital stay were 170.0(120.0,227.5)minutes, 100.0(50.0,200.0)mL, 8.0(5.0,10.0)days in the portal hypertension group, versus 170.0(120.0,227.5)minutes, 100.0(50.0,200.0)mL, 7.0(5.5,9.0)days in the non-portal hypertension group, showing no significant difference in the above indicators between the two groups ( Z=-1.39, -0.10, 1.05, P>0.05). In cases with anatomical liver resection, the operation time, volume of intraoperative blood loss, duration of postoperative hospital stay were 210.0(150.0,285.0)minutes, 150.0(50.0,200.0)mL, 8.0(6.0,9.3)days in the portal hypertension group, versus 225.5(146.3,306.8)minutes, 100.0(50.0,250.0)mL, 7.0(6.0,9.0)days in the non-portal hypertension group, showing no significant difference in the above indica-tors between the two groups ( Z=-0.75, -0.26, -0.91, P>0.05). In cases with non-anatomical liver resection, the operation time, volume of intraoperative blood loss, duration of postoperative hospital stay were 173.5(120.0,231.5)minutes, 175.0(50.0,300.0)mL, 7.0(5.0,11.0)days in the portal hyper-tension group, versus 186.0(123.0,262.5)minutes, 100.0(50.0,200.0)mL, 7.0(5.0,9.5)days in the non-portal hypertension group, showing no significant difference in the above indicators between the two groups ( Z=-0.97, -1.12, -0.98, P>0.05). Conclusion:Minimally invasive liver resection or even major liver resection is safe and feasible for screened HCC patients complicated with portal hyper-tension, but attention should be paid to the prevention and treatment of postoperative complications.
4.Perioperative efficacy analysis of robotic surgical system assisted anatomic and non-anatomic hepatectomy
Tian HANG ; Zheyong LI ; Mingyu CHEN ; Jiang CHEN ; Junhao ZHENG ; Liye TAO ; Linghan GONG ; Zaibo YANG ; Chao SONG ; Xiao LIANG
Chinese Journal of Digestive Surgery 2023;22(4):497-504
Objective:To investigate the perioperative efficacy of robot surgical system assisted anatomic and non-anatomic hepatectomy.Methods:The propensity score matching and retrospective cohort study was conducted. The clinical data of 103 patients who underwent robot surgical system assisted hepatectomy in Sir Run Run Shaw Hospital, Affiliated with the Zhejiang University School of Medicine from March 2016 to December 2021 were collected. There were 54 males and 49 females, aged 56(range, 44?64)years. Of the 103 patients, 55 cases undergoing robot surgical system assisted anatomic hepatectomy were divided into the anatomic group, and 48 cases undergoing robot surgical system assisted non-anatomic hepatectomy were divided into the non-anatomic group. Observation indicators: (1) propensity score matching and comparison of general data of patients between the two groups after matching; (2) intraoperative conditions; (3) perioperative complications. Propensity score matching was done by the 1:1 nearest neighbor matching method. Measurement data with normal distribution were represented as Mean± SD, and comparison between groups was conducted using the t test. Measurement data with skewed distribution were expressed as M(range), and comparison between groups was conducted using the Mann-Whitney U test. Count data were described as absolute numbers or percentages, and comparison between groups was conducted using the chi-square test or Fisher exact probability. Comparison of ordinal data was conducted using the rank sum test. Results:(1) Propensity score matching and compari-son of general data of patients between the two groups after matching. Of the 103 patients, 94 cases were successfully matched, including 47 cases in the anatomic group and 47 cases in the non-anatomic group. The elimination of preoperative body mass index, preoperative platelet and preoperative albumin confounding bias ensured comparability between the two groups after propensity score matching. (2) Intraoperative conditions. After propensity score matching, the operation time and volume of intraoperative blood loss were 175(range, 120?240)minutes and 50(range, 50?100)mL in patients of the anatomic group, versus 155(range, 105?190)minutes and 100(range, 50?200)mL in patients of the non-anatomic group, showing significant differences in the above indicators between the two groups ( Z=1.97, 2.49, P<0.05). (3) Perioperative complications. After propensity score matching, cases with pleural fluid and/or ascites, case with biliary fistula, case with thrombosis, case with peritoneal infection, case with incision infection were 11, 1, 2, 4, 1 in patients of the anatomic group, versus 12, 0, 4, 1, 0 in patients of the non-anatomic group, showing no significant difference in the above indicators between the two groups ( P>0.05). Cases with complications classified as grade Ⅰ, grade Ⅱ, grade Ⅲ, grade Ⅳ of the Clavien-Dindo classification were 33, 14, 0, 0 in patients of the anatomic group, versus 28, 14, 3, 2 in patients of the non-anatomic group, showing no significant difference in the above indicators between the two groups ( Z=?1.38, P>0.05). Conclusions:Robotic surgical system assisted anatomic and non-anatomic hepatectomy are safe and feasible for clinical application. Compared with robot surgical system assisted non-anatomic hepatectomy, patients under-going robot surgical system assisted anatomic hepatectomy have long operation time and less volume of intraoperative blood loss.
5.Status and enlightenment of core competence of disaster nursing in China
Guirong LI ; Huaping HUANG ; Zhuoxin YANG ; Junhao ZHANG ; Lijia WANG
Chinese Journal of Modern Nursing 2023;29(10):1261-1266
In recent years, the research on the core competence of disaster nursing in China has been relatively active in recent years, but has not yet formed a scale and perfect system. This paper introduces the related concepts of disaster nursing core competence, the development of International Council of Nurses (ICN) disaster nursing core competence framework, summarizes the disaster nursing core competence of different disaster characteristics and rescue groups in China, the evaluation tools of disaster nursing core competence, the cultivation of core competence, and the factors affecting the competence, and puts forward some thoughts and prospects for the construction of disaster nursing core competence in the future.
6.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
7.Volatile Oil of Linderae Radix Induces Apoptosis and Autophagy of Gastric Cancer AGS Cells via AMPK/mTOR Signaling Pathway
Xiao LIANG ; Yalan LI ; Junhao ZHANG ; Haotian BAI ; Zhan XIAO ; Xin SUN ; Wulong WEN ; Jing YANG ; Rui WANG
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(15):42-50
ObjectiveTo investigate the effects of the volatile oil of Linderae Radix on the apoptosis and autophagy of human gastric cancer cell line AGS, and to explore the regulatory role of adenosine monophosphate-activated protein kinase (AMPK)/mammalian target of rapamycin (mTOR) signaling pathway in this process. MethodThe volatile oil of Linderae Radix was extracted by steam distillation, and the effect of the volatile oil on the viability of AGS cells was detected by thiazolyl tetrazolium (MTT) colorimetry. The optimal intervention dose and time were determined according to the half maximal inhibitory concentration (IC50) for subsequent research. The blank, low, medium, and high-dose volatile oil (0, 15, 30, 60 mg·L-1) groups and the positive drug cyclophosphamide (CTX, 350 mg·L-1) group were designed. AGS cells were treated with different doses of volatile oil for 48 h. The changes in cell proliferation, cycle, and migration were measured by colony formation assay, flow cytometry, and cell scratch test, respectively. Hematoxylin-eosin (HE) staining was employed to observe the changes of cell morphology, Annexin-V/propidium iodide (PI) double staining to measure the apoptosis, and acridine orange (AO) staining to measure the autophagy level of the cells. Western blotting was employed to determine the expression of the autophagy effectors Beclin-1, p62, microtubule-associated protein 1-light chain 3 (LC3), B-cell lymphoma-2 (Bcl-2), Bcl-2-associated X protein (Bax), cleaved Caspase-3, cleaved poly ADP-ribose polymerase (PARP), adenosine monophosphate-activated protein kinase (AMPK), phosphorylated AMPK (p-AMPK), mTOR, and phosphorylated mTOR (p-mTOR). ResultCompared with the blank group, 24 h and 48 h of intervention with the volatile oil of Linderae Radix inhibited the viability of AGS cells in a concentration- and time-dependent manner (P<0.05, P<0.01). Compared with the blank group, the volatile oil decreased the cell proliferation and migration (P<0.05, P<0.01) and blocked the AGS cell cycle in G2/M phase (P<0.05, P<0.01) in a concentration-dependent manner. The cells treated with the volatile oil became spherical and smaller, with the formation of apoptotic bodies and increased apoptosis rate (P<0.05, P<0.01). As the dose of the volatile oil increased, the number of autophagosomes increased and the red fluorescence gradually enhanced, indicating the elevated level of autophagy. Compared with the blank group, different doses of volatile oil up-regulated the protein levels of Beclin-1, LC3 Ⅱ/LC3 Ⅰ, cleaved Caspase-3, cleaved PARP, Bax/Bcl-2, and AMPK (P<0.05, P<0.01) and down-regulated the protein levels of p62 and p-mTOR (P<0.05, P<0.01). ConclusionThe volatile oil of Linderae Radix induces the apoptosis and exerts the autophagy-mediated growth inhibition of AGS cells by regulating the AMPK/mTOR signaling pathway.
8.A highly selective C-rhamnosyltransferase from Viola tricolor and insights into its mechanisms.
Bo-Yun HAN ; Zi-Long WANG ; Junhao LI ; Qing JIN ; Hao-Tian WANG ; Kuan CHEN ; Yang YI ; Hans ÅGREN ; Xue QIAO ; Min YE
Acta Pharmaceutica Sinica B 2023;13(8):3535-3544
C-Glycosides are important natural products with various bioactivities. In plant biosynthetic pathways, the C-glycosylation step is usually catalyzed by C-glycosyltransferases (CGTs), and most of them prefer to accept uridine 5'-diphosphate glucose (UDP-Glc) as sugar donor. No CGTs favoring UDP-rhamnose (UDP-Rha) as sugar donor has been reported, thus far. Herein, we report the first selective C-rhamnosyltransferase VtCGTc from the medicinal plant Viola tricolor. VtCGTc could efficiently catalyze C-rhamnosylation of 2-hydroxynaringenin 3-C-glucoside, and exhibited high selectivity towards UDP-Rha. Mechanisms for the sugar donor selectivity of VtCGTc were investigated by molecular dynamics (MD) simulations and molecular mechanics with generalized Born and surface area solvation (MM/GBSA) binding free energy calculations. Val144 played a vital role in recognizing UDP-Rha, and the V144T mutant could efficiently utilize UDP-Glc. This work provides a new and efficient approach to prepare flavonoid C-rhamnosides such as violanthin and iso-violanthin.
9.Research progress of exosome drug loading system
Wulong WEN ; Weiye ZHANG ; Junhao ZHANG ; Xiao LIANG ; Zhan XIAO ; Xin SUN ; Jing YANG ; Rui WANG
China Pharmacy 2023;34(10):1271-1275
Exosome is a kind of vesicle secreted by a variety of cells with lipid bilayer membrane structure, which has good biocompatibility, high targeting and high stability, and is a natural nanoscale drug carrier with great development potential in drug delivery system. In this paper, exosomes and their properties, exosome drug delivery pathways and methods, the design strategy of engineered exosome drug delivery systems for targeted disease therapy, and the application of exosome drug delivery systems in the treatment of a variety of diseases were reviewed. Exosome drug delivery pathways could be divided into two categories: exogenous and endogenous. Common exosome drug delivery methods included electroporation, co-incubation, and ultrasound. Engineered exosome drug delivery system can further improve drug loading and enhance drug targeting. The main way of engineering is to modify exosome surface through genetic engineering technology, physical modification, chemical modification, etc. Exosome drug delivery system provides a new idea for targeted therapy of arthritis, tumor, brain and other diseases.
10.Progress of studies on DOTATATE-based α/β radionuclide therapy for neuroendocrine neoplasm
Delong HUANG ; Junhao WU ; Yuhang HE ; Yuanhang HAN ; Chunbo ZHANG ; Qiuya YANG
Chinese Journal of Nuclear Medicine and Molecular Imaging 2023;43(10):627-630
Neuroendocrine neoplasm (NEN) is a type of heterogeneous tumor that originates from peptidergic neurons and neuroendocrine cells. The presence of over-expressed somatostatin receptors (SSTR) on the surface of NEN tumor cells has led to the administration of radiolabeled somatostatin analogs (SSA) in combination with over-expressed SSTR, which is called peptide receptor radionuclide therapy (PRRT). The 1, 4, 7, 10-tetraazacyclododecane-1, 4, 7, 10-tetraacceticacid- D-Phe1-Tyr3-Thr8-octreotide (DOTATATE)-based α/β radionuclide therapy is one of the representative therapeutic methods of PRRT. This article reviews the progress of research on α/β radionuclide therapy based on DOTATATE and its related combination therapy, drug toxicity and safety, as well as expectation for modalities with clinical value for NEN treatment.

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