Objective:To discuss the associations of mismatch repair(MMR)in gastric cancer with preoperative inflammatory indicators and clinicopathological features in the gastric cancer patients,and to construct a gastric cancer MMR predictive model based on preoperative inflammatory indicators and clinicopathological features of the gastric cancer patients,and to provide new ideas for evaluation of MMR status in gastric cancer.Methods:The data of 254 gastric cancer patients who underwent surgical treatment from September 2020 to October 2023 were included.According to the expression of MMR protein,the patients were divided into MMR normal(proficiout MMR,pMMR)group and MMR deficient(dMMR)group.The preoperative inflammatory indicators and clinicopathological features data of the gastric cancer patients in two groups were collected.The associations between inflammatory indicators,clinicopathological features,and MMR in dMMR group and pMMR group were analyzed using Chi-square test.The independent predictive factors for dMMR were selected to construct the nomogram.Receiver operating characteristic(ROC)curve and calibration curve were used to evaluate the predictive efficacy,and decision curve was used to evaluate the practicality of the predication model.Results:A total of 254 gastric cancer patients were included in the study,with 221 patients(87％)in pMMR group and 33 patients(13％)in dMMR group.There were statistically significant differences(P＜0.05)in age,tumor location,tumor differentiation degree,maximum tumor diameter,platelet-to-lymphocyte ratio(PLR),alkaline phosphatase(AKP),alkaline phosphatase-to-albumin ratio(AAR),fibrinogen(FB)-to-lymphocyte(FLR),FB-to-albumin(AL)(FAR),D-dimer(D-D),and FB of the gastric cancer patients between dMMR group and pMMR group.Univariate and multivariate Logistic regression analysis revealed maximum tumor diameter[odd ratio(OR)=2.958,95％confidence interval(CI):1.196-7.314,P=0.019],tumor location(OR=4.013,95％CI:1.596-10.089,P=0.003),tumor differentiation(OR=3.006,95％CI:1.250-7.230,P=0.014),FAR(OR=2.793,95％CI:1.179-6.616,P=0.020),and carbohydrate antigen 199(CA199)(OR=0.279,95％CI:0.084-0.929,P-0.038)were the independent predictors of dMMR.The area under the ROC curve(AUC)value of the gastric cancer MMR prediction model constructed based on inflammatory indicators and clinical pathological characteristics was 0.800 with the sensitivity of 0.851 and the specificity of 0.606.The calibration curve of the nomogram was found to fit the ideal curve well,and in Hosmer-Lemeshow test P=0.412,the clinical decision curve showed a better net benefit.Conclusion:The preoperative inflammatory indicators and clinicopathological features are associated with MMR in gastric cancer;maximum tumor diameter,tumor location,tumor differentiation,CA199,and FAR are the independent predictors of dMMR.The prediction model based on the above predictors could predict the MMR status of the dMMR gastric cancer patients.

Non-small cell lung cancer (NSCLC), a leading cause of cancer-related deaths worldwide, remains a significant clinical challenge despite advances in immune checkpoint inhibitors therapy, with drug resistance persisting as a major obstacle. Palmitoylation, a critical post-translational modification (PTM) primarily catalyzed by palmitoyltransferases of the zinc finger DHHC-type (ZDHHC), has recently demonstrated important implications in NSCLC. This review aims to elucidate the mechanisms and clinical potential of ZDHHC-mediated protein palmitoylation in NSCLC progression and immune escape.
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Humans ; Lipoylation ; Lung Neoplasms/pathology* ; Acyltransferases/genetics* ; Carcinoma, Non-Small-Cell Lung/pathology* ; Animals

Objective:To observe the effect of robot-assisted gait training (RAGT) supplemented with intermittent theta burst stimulation (iTBS) of the cerebellum in restoring lower limb function after anterior cruciate ligament reconstruction (ACLR).Methods:Eighty ACLR patients were randomly divided into a control group, a magnetic stimulation group, a robot group and a combined group, each with 20 members. The robot and magnetic stimulation groups underwent RAGT and cerebellar iTBS before conventional training, while the combined group received iTBS followed by RAGT and then conventional training. The treatments were administered once a day, three days per week for four weeks. Before and after the intervention, the peak torque ratio of the knee flexors and extensors (H/Q), peak torque of the knee extensors (PT), and knee repositioning angle difference were measured. Knee function and balance (using the Berg Balance Scale (BBS)) were also assessed.Results:The combined group demonstrated significantly better quadriceps PT and H/Q% than the other 3 groups. Knee repositioning angle difference improved significantly in all of the groups after the treatment, with the combined group showing the smallest difference (5.00±1.21)°, significantly better than the other three groups. Lysholm and BBS scores had also improved significantly in all of the groups, with the combined group′s improvements again significantly better than those of the other groups.Conclusion:Intermittent theta burst stimulation of the cerebellum combined with robot-assisted gait training can significantly improve knee function and balance after ACLR.

Objective To explore the expression level of zinc finger CCCH-type containing 13 (ZC3H13)in gastric cancer based on bioinformatics techniques,along with clinicopathological stag-ing,prognostic survival,immune infiltration,correlation analysis,protein-protein interactions,and enrichment analysis.Methods Using the UALCAN database and the Gene Expression Profiling Inter-active Analysis(GEPIA)databases,the expression differences of ZC3H13 between normal gastric tis-sues and gastric cancer tissues,as well as the significance of clinical pathological data were compared.The correlation between ZC3H13 expression levels in gastric cancer tissues and patient survival progno-sis was assessed using univariate survival analysis through the Kaplan-Meier Plotter website and the GEPIA database.The relationship between ZC3H13 expression and immune infiltration levels in gastric cancer was explored using the Tumor Immune Estimation Resource(TIMER)database.Co-expression genes significantly correlated with ZC3H13 expression in gastric cancer were identified through the Linkedomics database.The protein-protein interaction network of ZC3H13 and its common target genes in gastric cancer was constructed using the STRING website,followed by Gene Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)enrichment analyses.Results Compared to normal gastric tissues,ZC3H13 was significantly upregulated in gastric cancer,and its high ex-pression was closely associated with patient age,ethnicity,tissue subtype,and other factors.Pa-tients with high ZC3H13 expression showed no statistically significant difference in overall survival(OS)or progression-free survival(PFS)time compared to patients with low expression(P＞0.05).Immune analysis revealed a significant negative correlation between ZC3H13 expression and the infiltration density of CD8+T cells,macrophages,neutrophils,and dendritic immune cells in gastric cancer(P＜0.05).Correlation analysis showed that ZC3H13 expression in gastric cancer was significantly positively correlated with the gene expression of DAK,DDK1,and BCL7C,and negatively correlated with the expression of FAM10A4,SLC6A7,and TAC1(P＜0.05).The pro-tein interaction network indicated that proteins interacting with ZC3H13 in gastric cancer included VIRMA,WTAP,METTL3,METTL14,RBM15,and others.Enrichment analysis revealed that dif-ferentially expressed genes in gastric cancer were mainly enriched in RNA polymerase,nucleotide excision repair,thyroid hormone signaling pathway,and other pathways.Conclusion ZC3H13 is overexpressed in gastric cancer,and its elevated expression is linked to the clinicopathological stage,patient survival time,and immune cell infiltration levels.Additionally,ZC3H13 may partici-pate in the initiation and progression of gastric cancer through interactions with key molecules such as VIRMA and METTL3.These findings suggest that ZC3H13 could serve as a potential biomarker and therapeutic target for gastric cancer prognosis.

Drug delivery system (DDS) holds promise in reducing off-target effects of antitumor drugs. The carriers of antitumor drug DDS mainly include nanoparticles, small molecules, nucleic acids, peptides, antibodies and cells, which carry antitumor drugs through linker to deliver the drugs to specific tumor tissues and cells. DDS will propel progress in the field of cancer precision medicine.

Tumor-related death is often associated with tumor metastasis. Metastasis process includes the acquisition of dissemination traits of tumor cells, dormancy awakening, and distant growth. Changing dissemination traits of cancer cells, maintaining and killing dormant tumor cells, editing pre-metastatic microenvironment, and reprogramming hallmarks of cancer will be key to block tumor metastasis. Bevacizumab, denosumab and cilengitide have been approved for clinical therapies. Tumor screening based on blood tests combined with artificial intelligence will provide new targeted metastasis strategies for clinical treatment.

Objective:To evaluate the feasibility and safety of performing multi-procedure remote urological surgeries by integrating 5G communication technology with domestically manufactured robotic surgical systems.Methods:Patients requiring urological laparoscopic surgery for benign lesions or tumors were prospectively enrolled at Gansu Provincial Hospital from May 2023 to June 2024. Inclusion criteria included age ≥18 years, body mass index (BMI) between 18 and 30 kg/m 2, and American Society of Anesthesiologists (ASA) classification Ⅰ-Ⅲ. Tumor-related surgical indicators were as follows: renal tumors staged ≤T 2, solitary tumors, or maximum diameter ≤10 cm; intermediate- to low-risk prostate cancer (clinical stage ≤T 2b), with preoperative prostate-specific antigen (PSA) ≤20 ng/ml or Gleason score ≤7; adrenal tumors with a diameter ≤7 cm or ≥3 cm for non-functional adenomas; and bladder tumors staged ≤T 2. Exclusion criteria included participation in other investigational drug or device clinical trials within the past 1 month, pregnancy or breastfeeding, and patients requiring emergency surgery. Patients with severe cardiovascular or circulatory diseases contraindicating surgery, and individuals with epilepsy, psychiatric disorders, or cognitive impairments were also excluded. Additionally, patients with active bleeding, coagulation disorders, or platelet counts <80×10 9/L were excluded. A 5G communication link was established between the main campus and the new branch of Gansu Provincial Hospital, approximately 70 km apart. Remote surgeries were performed using the domestically manufactured robotic surgical system (Toumai MT-1000). Perioperative key indicators, intraoperative network conditions, and robotic system performance were systematically recorded. Results:This study involved 14 patients, comprising 3 cases of renal cysts, 3 cases of renal tumors, 3 cases of nonfunctional kidneys, 2 cases of adrenal tumors, 1 case of bladder tumor, 1 case of prostate cancer, and 1 case of ureteral-bladder wall thickening with pelvic ureteral stones. The cohort included 7 male and 7 female patients, with an average age of (57.4±12.3) years, a BMI of (24.6±3.0) kg/m 2, and ASA classifications of grade Ⅱ in 9 cases and grade Ⅲ in 5 cases. All remote surgeries were successfully completed without the need for conversion to alternative surgical methods. Three renal cyst unroofing decompression procedures were performed, with an average console operation time of (32.0±6.6) minutes and intraoperative blood loss of (13.3±2.9) ml. Two partial nephrectomies were conducted, with console operation times of 140 and 160 minutes, intraoperative blood loss of 20 ml each, and warm ischemia times of 19 and 25 minutes, respectively. The preoperative estimated glomerular filtration rates (eGFR) for these cases were 115.2 and 107.3 ml/(min·1.73m 2), and postoperative eGFR were 102.0 and 95.5 ml/(min·1.73m 2), respectively. Four radical nephrectomies were completed, with an average console operation time of (50.2±13.7) minutes and intraoperative blood loss of (20.5±13.2) ml. Two adrenal tumor resections were performed, each with console operation times of 45 and 50 minutes and intraoperative blood loss of 10 ml. Additionally, one partial bladder resection was conducted, requiring a console operation time of 60 minutes and resulting in intraoperative blood loss of 10 ml. A single radical prostatectomy was carried out, with a console operation time of 180 minutes, intraoperative blood loss of 120 ml, and pre- and postoperative PSA levels of 11.7 ng/ml and 0.06 ng/ml, respectively. One ureteral-bladder reimplantation was also performed, with a console operation time of 240 minutes and intraoperative blood loss of 10 ml. The average total delay for the 14 remote surgeries ranged from 194 to 250 ms, while the average network transmission delay ranged from 13 to 55 ms. During the procedures, six instances of sudden large fluctuations in network transmission delay were observed, ranging from 333 to 654 ms. These fluctuations resolved automatically within approximately 10 seconds but resulted in temporary disruptions: 2 cases of master-slave console lock (reset process lasted around 5 seconds) and 1 case of switching to the local console for emergency hemostasis (lasting approximately 7 minutes). These interruptions did not significantly affect the surgical process. Postoperative complications in all patients were classified as Clavien-Dindo grade Ⅰ and were unrelated to the surgical procedures or equipment. No cancer was detected in the resection margins of malignant tumors. Follow-up evaluations at three months, including blood tests, liver and kidney function tests, and CT scans of the surgical sites, revealed no significant abnormalities or adverse events. Conclusions:5G communication technology, with an average total latency of less than 250 ms, enables domestic surgical robots to perform multi-procedural remote urological surgeries effectively. However, during procedures requiring extensive suturing for urological reconstruction or managing unplanned intraoperative bleeding, network latency fluctuations exceeding 333 ms can extend the operation time and may necessitate switching to local control for emergency hemostasis.

Objective:To observe the effect of robot-assisted gait training (RAGT) supplemented with intermittent theta burst stimulation (iTBS) of the cerebellum in restoring lower limb function after anterior cruciate ligament reconstruction (ACLR).Methods:Eighty ACLR patients were randomly divided into a control group, a magnetic stimulation group, a robot group and a combined group, each with 20 members. The robot and magnetic stimulation groups underwent RAGT and cerebellar iTBS before conventional training, while the combined group received iTBS followed by RAGT and then conventional training. The treatments were administered once a day, three days per week for four weeks. Before and after the intervention, the peak torque ratio of the knee flexors and extensors (H/Q), peak torque of the knee extensors (PT), and knee repositioning angle difference were measured. Knee function and balance (using the Berg Balance Scale (BBS)) were also assessed.Results:The combined group demonstrated significantly better quadriceps PT and H/Q% than the other 3 groups. Knee repositioning angle difference improved significantly in all of the groups after the treatment, with the combined group showing the smallest difference (5.00±1.21)°, significantly better than the other three groups. Lysholm and BBS scores had also improved significantly in all of the groups, with the combined group′s improvements again significantly better than those of the other groups.Conclusion:Intermittent theta burst stimulation of the cerebellum combined with robot-assisted gait training can significantly improve knee function and balance after ACLR.

Objective:To evaluate the feasibility and safety of performing multi-procedure remote urological surgeries by integrating 5G communication technology with domestically manufactured robotic surgical systems.Methods:Patients requiring urological laparoscopic surgery for benign lesions or tumors were prospectively enrolled at Gansu Provincial Hospital from May 2023 to June 2024. Inclusion criteria included age ≥18 years, body mass index (BMI) between 18 and 30 kg/m 2, and American Society of Anesthesiologists (ASA) classification Ⅰ-Ⅲ. Tumor-related surgical indicators were as follows: renal tumors staged ≤T 2, solitary tumors, or maximum diameter ≤10 cm; intermediate- to low-risk prostate cancer (clinical stage ≤T 2b), with preoperative prostate-specific antigen (PSA) ≤20 ng/ml or Gleason score ≤7; adrenal tumors with a diameter ≤7 cm or ≥3 cm for non-functional adenomas; and bladder tumors staged ≤T 2. Exclusion criteria included participation in other investigational drug or device clinical trials within the past 1 month, pregnancy or breastfeeding, and patients requiring emergency surgery. Patients with severe cardiovascular or circulatory diseases contraindicating surgery, and individuals with epilepsy, psychiatric disorders, or cognitive impairments were also excluded. Additionally, patients with active bleeding, coagulation disorders, or platelet counts <80×10 9/L were excluded. A 5G communication link was established between the main campus and the new branch of Gansu Provincial Hospital, approximately 70 km apart. Remote surgeries were performed using the domestically manufactured robotic surgical system (Toumai MT-1000). Perioperative key indicators, intraoperative network conditions, and robotic system performance were systematically recorded. Results:This study involved 14 patients, comprising 3 cases of renal cysts, 3 cases of renal tumors, 3 cases of nonfunctional kidneys, 2 cases of adrenal tumors, 1 case of bladder tumor, 1 case of prostate cancer, and 1 case of ureteral-bladder wall thickening with pelvic ureteral stones. The cohort included 7 male and 7 female patients, with an average age of (57.4±12.3) years, a BMI of (24.6±3.0) kg/m 2, and ASA classifications of grade Ⅱ in 9 cases and grade Ⅲ in 5 cases. All remote surgeries were successfully completed without the need for conversion to alternative surgical methods. Three renal cyst unroofing decompression procedures were performed, with an average console operation time of (32.0±6.6) minutes and intraoperative blood loss of (13.3±2.9) ml. Two partial nephrectomies were conducted, with console operation times of 140 and 160 minutes, intraoperative blood loss of 20 ml each, and warm ischemia times of 19 and 25 minutes, respectively. The preoperative estimated glomerular filtration rates (eGFR) for these cases were 115.2 and 107.3 ml/(min·1.73m 2), and postoperative eGFR were 102.0 and 95.5 ml/(min·1.73m 2), respectively. Four radical nephrectomies were completed, with an average console operation time of (50.2±13.7) minutes and intraoperative blood loss of (20.5±13.2) ml. Two adrenal tumor resections were performed, each with console operation times of 45 and 50 minutes and intraoperative blood loss of 10 ml. Additionally, one partial bladder resection was conducted, requiring a console operation time of 60 minutes and resulting in intraoperative blood loss of 10 ml. A single radical prostatectomy was carried out, with a console operation time of 180 minutes, intraoperative blood loss of 120 ml, and pre- and postoperative PSA levels of 11.7 ng/ml and 0.06 ng/ml, respectively. One ureteral-bladder reimplantation was also performed, with a console operation time of 240 minutes and intraoperative blood loss of 10 ml. The average total delay for the 14 remote surgeries ranged from 194 to 250 ms, while the average network transmission delay ranged from 13 to 55 ms. During the procedures, six instances of sudden large fluctuations in network transmission delay were observed, ranging from 333 to 654 ms. These fluctuations resolved automatically within approximately 10 seconds but resulted in temporary disruptions: 2 cases of master-slave console lock (reset process lasted around 5 seconds) and 1 case of switching to the local console for emergency hemostasis (lasting approximately 7 minutes). These interruptions did not significantly affect the surgical process. Postoperative complications in all patients were classified as Clavien-Dindo grade Ⅰ and were unrelated to the surgical procedures or equipment. No cancer was detected in the resection margins of malignant tumors. Follow-up evaluations at three months, including blood tests, liver and kidney function tests, and CT scans of the surgical sites, revealed no significant abnormalities or adverse events. Conclusions:5G communication technology, with an average total latency of less than 250 ms, enables domestic surgical robots to perform multi-procedural remote urological surgeries effectively. However, during procedures requiring extensive suturing for urological reconstruction or managing unplanned intraoperative bleeding, network latency fluctuations exceeding 333 ms can extend the operation time and may necessitate switching to local control for emergency hemostasis.

Optical tweezers are a means to manipulate objects with light. Optical tweezers can obtain a nanometer space, piconewton force, and a millisecond resolution; thus, they are excellently suited for studying biological processes from the single-cell to the single-molecule level. Optical tweezers can screen and manipulate tumor cells, study single molecule, and monitor cancer treatments. Thus, optical tweezers will promote the progress of cancer research and treatments.