1.Simultaneous Use of Three Endoscopes Combined With Holmium Laser in the Treatment of Gallstones Complicated With Common Bile Duct Stones:a Prospective Randomized Controlled Study
Junkai YANG ; Zedong HAO ; Wenliang GUO ; Zhiqiang WANG ; Biao WU
Chinese Journal of Minimally Invasive Surgery 2025;25(7):398-404
Objective To investigate the clinical effect of simultaneous use of three endoscopes(laparoscope,choledochoscope,and duodenoscope)combined with holmium laser in the treatment of gallstones complicated with common bile duct stones.Methods A prospective randomized controlled study was carried out.A total of 80 patients with cholecystolithiasis combined with choledocholithiasis in our hospital from August 2022 to January 2024 were selected and divided into three-endoscope group(n=40)and two-endoscope group(n=40)according to random number table method.Patients in the three-endoscope group underwent laparoscopic cholecystectomy(LC)and laparoscopic common bile duct exploration(LCBDE)combined with holmium laser lithotripsy,primary closure of the common bile duct,endoscopic retrograde cholangiopancreatography(ERCP),and endoscopic nasobiliary drainage(ENBD),while the two-endoscope group underwent LC+LCBDE+T-tube drainage.The intraoperative bleeding volume,operation time,hospitalization time,hospitalization costs,and postoperative complications between the two groups were observed and analyzed.Results There was no significant difference in intraoperative bleeding volume between the two groups[(55.6±14.3)ml vs.(53.2±16.3)ml,t=0.703,P=0.484].The operation time of the three-endoscope group was significantly longer than that in the two-endoscope group[214.5(171.5,246.8)min vs.178.0(151.0,227.8)min,Z=-2.069,P=0.039].The length of hospital stay in the three-endoscope group was significantly shorter than that in the two-endoscope group[(13.2±3.3)d vs.(16.2±3.7)d,t=3.864,P=0.001].The hospitalization costs were significantly higher in the three-endoscope group than those in the two-endoscope group[39 316.0(32 338.5,43 421.0)yuan vs.33 717.0(30 873.3,37 813.3)yuan,Z=-3.272,P=0.001].There were no significant differences in the incidence of postoperative pancreatitis[2.5%(1/40)vs.2.5%(1/40),χ2=0.000,P=1.000],the incidence of bile leakage[7.5%(3/40)vs.2.5%(1/40),χ2=0.263,P=0.615],and residual stone rate[7.5%(3/40)vs.0.0%(0/40),P=0.241]between the two groups.Forty cases in the three-endoscope group were followed up for 2-20 months,with a median of 13 months.One case of stone recurrence occurred at 8 months after surgery.Forty patients in the two-endoscope group were followed up for 1-21 months,with a median of 15 months.There was 1 case of stone recurrence at 6 and 10 months postoperatively,respectively.There was no statistically significant difference in stone recurrence rate between the two groups[2.5%(1/40)vs.5.0%(2/40),χ2=0.000,P=1.000].Conclusions LC+LCBDE combined with holmium laser lithotripsy,primary closure of the common bile duct,ERCP,and ENBD in the treatment of cholecystolithiasis and choledocholithiasis can shorten the hospitalization time.The replacement of T-tube with nasobiliary duct protects the function of the Oddi sphincter,which is more in line with the concept of minimally invasive surgery and worthy of clinical application.
2.Modified Lianpoyin Formula Treats Hp-associated Gastritis by Regulating Mitochondrial Autophagy and NLRP3 Inflammasome Signaling Pathway
Siyi ZHANG ; Haopeng DANG ; Wenliang LYU ; Wentao ZHOU ; Wei GUO ; Lin LIU ; Lan ZENG ; Yujie SUN ; Luming LIANG ; Yi ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(21):178-187
ObjectiveTo explore the effect of modified Lianpoyin formula (LPYJWF) in the treatment of Helicobacter pylori (Hp)-associated gastric mucosal damage based on mitochondrial autophagy and NLRP3 inflammasome signaling pathway. MethodsA total of 60 eight-week-old Balb/c male mice were assigned via the random number table method into control, model, high-dose LPYJWF (LPYJWF-H, 27.3 g·kg-1·d-1), medium-dose LPYJWF (LPYJWF-M, 13.65 g·kg-1·d-1), low-dose LPYJWF (LPYJWF-L, 6.83 g·kg-1·d-1), and quadruple therapy groups. Except the control group, other groups were modeled for Hp infection. Mice were administrated with LPYJWF at corresponding doses by gavage. Quadruple therapy group was given omeprazole (6.06 mg·kg-1·d-1) + amoxicillin (303 mg·kg-1·d-1) + clarithromycin (151.67 mg·kg-1·d-1) + colloidal pectin capsules (30.3 mg·kg-1·d-1) by gavage. The control group was given an equal volume of 0.9% NaCl for 14 days. Hematoxylin-eosin (HE) staining was used to observe the pathological changes of gastric mucosa, and Warthin-Starry (W-S) silver staining was used to detect Hp colonization. Transmission electron microscopy was employed to observe the mitochondrial ultrastructure of the gastric tissue, and immunofluorescence co-localization assay was adopted to detect the expression of mitochondrial transcription factor A (TFAM) and translocase of the outer mitochondrial membrane member 20 (TOMM20). The water-soluble tetrazolium salt method and thiobarbituric acid method were used to determine the levels of superoxide dismutase (SOD) and malondialdehyde (MDA), respectively, in the gastric tissue. Western blot was employed to measure the protein levels of PTEN-induced kinase 1 (PINK1), Parkin, p62, microtubule-associated protein 1 light chain 3 (LC3), NOD-like receptor protein 3 (NLRP3), apoptosis-associated speck-like protein containing a CARD (ASC), interleukin-1β (IL-1β), and interleukin-18 (IL-18). Real-time quantitative PCR was employed to assess the mRNA levels of PINK1, Parkin, p62, and LC3. ResultsCompared with the control group, the model group presented obvious gastric mucosal damage, colonization of a large number of Hp, severe mitochondrial damage, vacuolated structures due to excessive autophagy, reduced TOMM20 and TFAM co-expression in the gastric mucosal tissue, and reduced SOD and increased MDA (P<0.01). In addition, the gastric tissue in the model group showed up-regulated protein and mRNA levels of PINK1, Parkin, and LC3 and down-regulated protein and mRNA levels of p62 (P<0.01, as well as increased expression of inflammasome-associated proteins NLRP3, ASC, IL-1β, and IL-18 (P<0.01). Compared with the model group, the LPYJWF and quadruple therapy groups showed alleviated pathological damage of gastric mucosa, reduced Hp colonization, mitigated mitochondrial damage, and increased co-expression of TOMM20 and TFAM. The SOD level was elevated in the LPYJWF-L group (P<0.01), and the MDA levels became lowered in the LPYJWF and quadruple therapy groups (P<0.05, P<0.01). Furthermore, the LPYJWF and quadruple therapy groups showed down-regulated mRNA levels of PINK1, Parkin, and LC3 and protein levels of PINK1 and Parkin, and up-regulated mRNA level of p62 (P<0.01). The LPYJWF-M, LPYJWF-H, and quadruple therapy groups showcased down-regulated LC3 Ⅱ/LC3 Ⅰ level (P<0.05, P<0.01) and up-regulated protein level of p62 (P<0.01). The expression of inflammasome-associated proteins NLRP3, ASC, IL-1β, and IL-18 were reduced in the LPYJWF and quadruple therapy groups (P<0.05, P<0.01). ConclusionLPYJWF ameliorates gastric mucosal damage and exerts mucosa-protective effects in Hp-infected mice, which may be related to the inhibition of excessive mitochondrial autophagy, thereby inhibiting the activation of the NLRP3 inflammasome pathway.
3.Modified Lianpoyin Formula Treats Hp-associated Gastritis by Regulating Mitochondrial Autophagy and NLRP3 Inflammasome Signaling Pathway
Siyi ZHANG ; Haopeng DANG ; Wenliang LYU ; Wentao ZHOU ; Wei GUO ; Lin LIU ; Lan ZENG ; Yujie SUN ; Luming LIANG ; Yi ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(21):178-187
ObjectiveTo explore the effect of modified Lianpoyin formula (LPYJWF) in the treatment of Helicobacter pylori (Hp)-associated gastric mucosal damage based on mitochondrial autophagy and NLRP3 inflammasome signaling pathway. MethodsA total of 60 eight-week-old Balb/c male mice were assigned via the random number table method into control, model, high-dose LPYJWF (LPYJWF-H, 27.3 g·kg-1·d-1), medium-dose LPYJWF (LPYJWF-M, 13.65 g·kg-1·d-1), low-dose LPYJWF (LPYJWF-L, 6.83 g·kg-1·d-1), and quadruple therapy groups. Except the control group, other groups were modeled for Hp infection. Mice were administrated with LPYJWF at corresponding doses by gavage. Quadruple therapy group was given omeprazole (6.06 mg·kg-1·d-1) + amoxicillin (303 mg·kg-1·d-1) + clarithromycin (151.67 mg·kg-1·d-1) + colloidal pectin capsules (30.3 mg·kg-1·d-1) by gavage. The control group was given an equal volume of 0.9% NaCl for 14 days. Hematoxylin-eosin (HE) staining was used to observe the pathological changes of gastric mucosa, and Warthin-Starry (W-S) silver staining was used to detect Hp colonization. Transmission electron microscopy was employed to observe the mitochondrial ultrastructure of the gastric tissue, and immunofluorescence co-localization assay was adopted to detect the expression of mitochondrial transcription factor A (TFAM) and translocase of the outer mitochondrial membrane member 20 (TOMM20). The water-soluble tetrazolium salt method and thiobarbituric acid method were used to determine the levels of superoxide dismutase (SOD) and malondialdehyde (MDA), respectively, in the gastric tissue. Western blot was employed to measure the protein levels of PTEN-induced kinase 1 (PINK1), Parkin, p62, microtubule-associated protein 1 light chain 3 (LC3), NOD-like receptor protein 3 (NLRP3), apoptosis-associated speck-like protein containing a CARD (ASC), interleukin-1β (IL-1β), and interleukin-18 (IL-18). Real-time quantitative PCR was employed to assess the mRNA levels of PINK1, Parkin, p62, and LC3. ResultsCompared with the control group, the model group presented obvious gastric mucosal damage, colonization of a large number of Hp, severe mitochondrial damage, vacuolated structures due to excessive autophagy, reduced TOMM20 and TFAM co-expression in the gastric mucosal tissue, and reduced SOD and increased MDA (P<0.01). In addition, the gastric tissue in the model group showed up-regulated protein and mRNA levels of PINK1, Parkin, and LC3 and down-regulated protein and mRNA levels of p62 (P<0.01, as well as increased expression of inflammasome-associated proteins NLRP3, ASC, IL-1β, and IL-18 (P<0.01). Compared with the model group, the LPYJWF and quadruple therapy groups showed alleviated pathological damage of gastric mucosa, reduced Hp colonization, mitigated mitochondrial damage, and increased co-expression of TOMM20 and TFAM. The SOD level was elevated in the LPYJWF-L group (P<0.01), and the MDA levels became lowered in the LPYJWF and quadruple therapy groups (P<0.05, P<0.01). Furthermore, the LPYJWF and quadruple therapy groups showed down-regulated mRNA levels of PINK1, Parkin, and LC3 and protein levels of PINK1 and Parkin, and up-regulated mRNA level of p62 (P<0.01). The LPYJWF-M, LPYJWF-H, and quadruple therapy groups showcased down-regulated LC3 Ⅱ/LC3 Ⅰ level (P<0.05, P<0.01) and up-regulated protein level of p62 (P<0.01). The expression of inflammasome-associated proteins NLRP3, ASC, IL-1β, and IL-18 were reduced in the LPYJWF and quadruple therapy groups (P<0.05, P<0.01). ConclusionLPYJWF ameliorates gastric mucosal damage and exerts mucosa-protective effects in Hp-infected mice, which may be related to the inhibition of excessive mitochondrial autophagy, thereby inhibiting the activation of the NLRP3 inflammasome pathway.
4.Screening and analysis of cancer-related differences of LncRNAs in patients with oral lichen planus based on high throughput sequencing technology
Wenliang DONG ; Yidan HUANG ; Wenzhuo GUO ; Huixia YANG ; Jing ZHANG
Journal of Practical Stomatology 2025;41(1):80-87
Objective:To screen and analyze the carcinogenesis-related differential expression profile of long non-coding RNAs(LncRNAs)in oral lichen planus(OLP)mucosa tissue,and preliminarily analyze their functions,to explore their possible role in the development of OLP.Methods:High-throughput sequencing technology was used to construct differential expression profile from 5 cases of erosive OLP lesions and 5 of normal oral mucosa.LncRNAs that are closely related to the carcinogenesis of OLP were ob-tained by bioinformatics analysis.Results:400 LncRNAs associated with OLP were screened,of which 250 were up-regulated and 150 were down-regulated,and 5 LncRNAs were obtained with differential expression associated with OLP carcinogenesis:LncRNA 54055,100128560,399717,378825 and 100130231.Conclusion:400 LncRNAs are differentially expressed in the mucosa of erosive OLP lesions,and 5 of them are related to the incidence and carcinogenesis tendency of OLP.
5.Predicting mortality risk in severe ards patients using indirect calorimetry-based oxygen consumption and carbon dioxide production rates
Ke GUAN ; Huihuang ZOU ; Yuna HU ; Ling YE ; Yanwei CHENG ; Jingjing NIU ; Cunzhen WANG ; Ke QIN ; Tingyuan ZHANG ; Bin YANG ; Yuhan SUN ; Wenliang ZHU ; Qingbo FAN ; Zhisong GUO ; Yongchun CHEN ; Wenjie WANG
Chinese Journal of Emergency Medicine 2025;34(3):396-403
Objective:To investigate the relationship between oxygen consumption (VO 2), carbon dioxide production (VCO 2), and Oxygen Consumption/lactate (VO 2/Lac) with risk of death in patients with severe ARDS. Methods:A retrospective cohort study method was used, and the study subjects were hospitalized for >5 days adult patients with severe ARDS in the central intensive care unit of Henan Provincial People's Hospital from 1 March 2020 to 30 June 2023. The following patients were excluded: IC test was not completed on the 4th day of ICU admission, IC test results were unreliable, mechanical ventilation duration had exceeded 48 h at the time of ICU transfer or admission, palliative care patients and pregnant and parturient women. Using indirect calorimetry to determine VO 2 and VCO 2 values on the 4th day of admission, reviewing medical records to obtain general condition, disease information, blood gas analysis (including lactate value), diagnostic and therapeutic measures, and following up deaths by telephone and time of death. The primary outcome measure was death at 90 days, and the secondary outcome measure was death at 28 days, length of stay in ICU, total length of stay, and total hospitalization cost. Cox regression analysis and linear regression analysis were used to investigate the relationship between VO 2, VCO 2, VO 2/Lac and primary and secondary outcome indexes. Results:A total of 216 patients were enrolled, 78 patients (36.1%) died and 138 patients (63.9%) survived at 90 days. After correction for confounders, the results of multifactorial Cox regression analysis suggested that compared with the Q4 group, HR (95% CI) for 90-day risk of death in the VO 2 Q1 and Q2 groups was 3.21 (1.38, 7.49) and 3.24 (1.42, 7.38), and HR (95% CI) for 90-day risk of death in the VCO 2 Q1, Q2 and Q3 groups was 5.88 (2.33, 14.84), 4.26 (1. 60, 11.34) and 3.54 (1.34, 9.35), respectively, and the HR (95% CI) for 90-day risk of death in the VO 2/Lac Q1, Q2 and Q3 groups were 8.72 (3.01, 25.25), 8.43 (2.91, 24.47) and 4.04 (1.34, 12.17) respectively. P-trends were all <0.05, indicating that VO 2, VCO 2 and VO 2/Lac were linearly and negatively associated with the risk of 90-day mortality. In addition, VO 2, VCO 2, and VO 2/Lac were negatively associated with 28-day risk of death and higher VO 2/Lac was negatively associated with length of ICU stay. Conclusions:VO 2, VCO 2 and VO 2/Lac were negatively associated with 90-day mortality risk and 28-day mortality risk in patients with severe ARDS and may be independent risk factors predicting mortality risk of such patients.
6.Simultaneous Use of Three Endoscopes Combined With Holmium Laser in the Treatment of Gallstones Complicated With Common Bile Duct Stones:a Prospective Randomized Controlled Study
Junkai YANG ; Zedong HAO ; Wenliang GUO ; Zhiqiang WANG ; Biao WU
Chinese Journal of Minimally Invasive Surgery 2025;25(7):398-404
Objective To investigate the clinical effect of simultaneous use of three endoscopes(laparoscope,choledochoscope,and duodenoscope)combined with holmium laser in the treatment of gallstones complicated with common bile duct stones.Methods A prospective randomized controlled study was carried out.A total of 80 patients with cholecystolithiasis combined with choledocholithiasis in our hospital from August 2022 to January 2024 were selected and divided into three-endoscope group(n=40)and two-endoscope group(n=40)according to random number table method.Patients in the three-endoscope group underwent laparoscopic cholecystectomy(LC)and laparoscopic common bile duct exploration(LCBDE)combined with holmium laser lithotripsy,primary closure of the common bile duct,endoscopic retrograde cholangiopancreatography(ERCP),and endoscopic nasobiliary drainage(ENBD),while the two-endoscope group underwent LC+LCBDE+T-tube drainage.The intraoperative bleeding volume,operation time,hospitalization time,hospitalization costs,and postoperative complications between the two groups were observed and analyzed.Results There was no significant difference in intraoperative bleeding volume between the two groups[(55.6±14.3)ml vs.(53.2±16.3)ml,t=0.703,P=0.484].The operation time of the three-endoscope group was significantly longer than that in the two-endoscope group[214.5(171.5,246.8)min vs.178.0(151.0,227.8)min,Z=-2.069,P=0.039].The length of hospital stay in the three-endoscope group was significantly shorter than that in the two-endoscope group[(13.2±3.3)d vs.(16.2±3.7)d,t=3.864,P=0.001].The hospitalization costs were significantly higher in the three-endoscope group than those in the two-endoscope group[39 316.0(32 338.5,43 421.0)yuan vs.33 717.0(30 873.3,37 813.3)yuan,Z=-3.272,P=0.001].There were no significant differences in the incidence of postoperative pancreatitis[2.5%(1/40)vs.2.5%(1/40),χ2=0.000,P=1.000],the incidence of bile leakage[7.5%(3/40)vs.2.5%(1/40),χ2=0.263,P=0.615],and residual stone rate[7.5%(3/40)vs.0.0%(0/40),P=0.241]between the two groups.Forty cases in the three-endoscope group were followed up for 2-20 months,with a median of 13 months.One case of stone recurrence occurred at 8 months after surgery.Forty patients in the two-endoscope group were followed up for 1-21 months,with a median of 15 months.There was 1 case of stone recurrence at 6 and 10 months postoperatively,respectively.There was no statistically significant difference in stone recurrence rate between the two groups[2.5%(1/40)vs.5.0%(2/40),χ2=0.000,P=1.000].Conclusions LC+LCBDE combined with holmium laser lithotripsy,primary closure of the common bile duct,ERCP,and ENBD in the treatment of cholecystolithiasis and choledocholithiasis can shorten the hospitalization time.The replacement of T-tube with nasobiliary duct protects the function of the Oddi sphincter,which is more in line with the concept of minimally invasive surgery and worthy of clinical application.
7.Screening and analysis of cancer-related differences of LncRNAs in patients with oral lichen planus based on high throughput sequencing technology
Wenliang DONG ; Yidan HUANG ; Wenzhuo GUO ; Huixia YANG ; Jing ZHANG
Journal of Practical Stomatology 2025;41(1):80-87
Objective:To screen and analyze the carcinogenesis-related differential expression profile of long non-coding RNAs(LncRNAs)in oral lichen planus(OLP)mucosa tissue,and preliminarily analyze their functions,to explore their possible role in the development of OLP.Methods:High-throughput sequencing technology was used to construct differential expression profile from 5 cases of erosive OLP lesions and 5 of normal oral mucosa.LncRNAs that are closely related to the carcinogenesis of OLP were ob-tained by bioinformatics analysis.Results:400 LncRNAs associated with OLP were screened,of which 250 were up-regulated and 150 were down-regulated,and 5 LncRNAs were obtained with differential expression associated with OLP carcinogenesis:LncRNA 54055,100128560,399717,378825 and 100130231.Conclusion:400 LncRNAs are differentially expressed in the mucosa of erosive OLP lesions,and 5 of them are related to the incidence and carcinogenesis tendency of OLP.
8.Application of Mendelian randomization analysis in exploring the etiology of nonalcoholic fatty liver disease
Ziwei GUO ; Qingjuan WU ; Yongan YE ; Lanyu CHEN ; Wenliang LYU
Journal of Clinical Hepatology 2024;40(3):589-593
Nonalcoholic fatty liver disease (NAFLD) is an abnormal lipid metabolic disorder of the liver characterized by accumulation of a large amount of lipids in the liver, and it is currently the most common liver disease around the world. Mendelian randomization (MR) incorporates genomic data into traditional epidemiological study designs to infer the causal relationship between exposure factors and disease risk. In recent years, MR has been widely used in studies on inference of the etiology of NAFLD. This article systematically summarizes the advances in the application of MR in NAFLD research, so as to provide new ideas for understanding the nature of the disease and scientific interventions.
9.Inhibitory effect of lead on GABA A receptor-mediated currents and GABAergic synaptic transmission in rat cortical neurons
Wenliang GAO ; Hong ZHANG ; Yi YUAN ; Rui GUO ; Xingyang LIU ; Xianhua DENG ; Hao SUN
Chinese Journal of Pharmacology and Toxicology 2024;38(1):31-38
OBJECTIVE To investigate the inhibitory effect and mechanism of lead(Pb2+)on γ-amino-butyric acid(GABA)A receptor-mediated currents(IGABA)and GABAergic synaptic transmission in rat cortical neurons.METHODS ①The cortical neurons from 0 d Sprague Dawley(SD)rats were cultured for experiments.The cultured cells(7-14 d)were recorded using the patch-clamp technique to analyze the effects of Pb2+ at different concentrations(1,5,10,50 and 100 μmol·L-1)on IGABA induced by GABA 100 μmol·L-1.② The effects of Pb2+ 50 μmol·L-1 on IGABA induced by GABA at different concentrations(1,10,50,100,500 and 100 μmol·L-1)were detected.③Brain slices(350 μm)were prepared from SD rats(15-19 d).The spontaneous inhibitory post-synaptic currents(sIPSCs),miniature inhibitory post-synaptic currents(mIPSCs)and current injection-induced action potential(AP)were recorded to detect the effects of Pb2+ 10 μmol·L-1 on the amplitude and frequency of sIPSCs and mIPSCs,and the frequency of AP.RESULTS ①Pb2+ inhibited IGABA in a concentration-dependent manner,and IC50 was(68±20)μmol·L-1.②Pb2+ also suppressed the maximum current induced by GABA(P<0.01),with a significant increase of the GABA′s EC50 from(20±6)μmol·L-1 to(87±39)μmol·L-1,indicating that Pb2+ might inhibit IGABA in a non-competitive mechanism.③Pb2+ 10 μmol·L-1 inhibited the frequency(P<0.01)rather than the ampli-tude of sIPSCs reversibly,but had no effect on eigher the frequency or amplitude of mIPSCs.In addi-tion,Pb2+ decreased the frequency of evoked AP by current injection(P<0.01)and reduced the overall excitability of rat cortical neurons.CONCLUSION Pb2+ can significantly inhibit IGABA in primary cultured neurons.In the brain slice experiment,Pb2+ may affect sIPSCs frequency by inhibiting the AP of cortical neurons,suggesting that there are different intrinsic mechanisms through which Pb2+ inhibits both IGABA in primary cultured neurons and the frequency of sIPSCs in brain slice neurons,which points to the complexity of the mechanism of Pb2+ poisoning.
10.Clinical features of TFE3-rearranged renal cell carcinoma
Shuoming ZHOU ; Wenliang MA ; Xiang DONG ; Guangxiang LIU ; Changwei JI ; Gutian ZHANG ; Weidong GAN ; Hongqian GUO
Chinese Journal of Urology 2023;44(6):427-433
Objective:A single-center analysis was performed to assess the significant clinical features and prognostic factors of TFE3-rearranged renal cell carcinoma (TFE3 rRCC).Methods:The clinical data of 85 confirmed cases of TFE3 rRCC patients at the Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University from January 2007 to February 2023 were analyzed retrospectively. Among these patients, there were 39 males and 46 females, with a median age of 32 (26, 45) years. All patients underwent preoperative CT scans, 21/85 cases (24.7%) of TFE3 rRCC exhibited the characteristic feature of "circular calcification" with plain CT imaging, and enhanced CT scan showed that the tumor enhancement during the arterial phase was lower than the adjacent renal cortex. Among the 85 patients in this cohort, the median tumor diameter was 4.8(3.2, 6.5). Thirty-two patients underwent partial nephrectomy (NSS), while 51 patients underwent radical nephrectomy (RN). Two patients with distant metastasis at the time of diagnosis received only sunitinib therapy. Forty-three patients received adjuvant treatment, including 14 patients who received targeted therapy. There were 29 patients in AJCC stage Ⅲ/Ⅳ, with 10 patients presenting with venous tumor thrombus and 14 patients with lymph node metastasis. Histopathology, TFE3 immunohistochemistry, and break-apart TFE3 FISH probe detection were performed on all 85 cases, while 52 patients underwent RT-PCR and/or DNA sequencing. By combining the clinical and pathological data, we summarized the diagnostic Methods for TFE3 rRCC, evaluated the impact of surgical approaches (RN and NSS) on the survival outcomes of cT 1a/b patients, and assessed the influence of genetic subtypes (ASPL, NONO, PRCC, SFPQ, and others) on the survival outcomes of all patients. Furthermore, we analyzed the risk factors for disease progression. Results:TFE3 rRCC exhibited variable histopathological features, and the presence of acinar-like structures with psammoma bodies may be a relatively typical characteristic. All 85 patients showed positive TFE3 immunohistochemical staining. In 6 cases of TFE3 rRCC, break-apart TFE3 FISH probe yielded negative results. However, final confirmation was achieved through genetic sequence, with 5 cases diagnosed as NONO-TFE3 subtype and 1 case as RBM10-TFE3 subtype. Among the 85 patients, 52 underwent RT-PCR and/or DNA sequencing, revealing a total of 8 TFE3 fusion subtypes, including 11 cases of ASPL-TFE3, 8 cases of PRCC-TFE3, 10 cases of NONO-TFE3, 15 cases of SFPQ-TFE3, 1 case of CLTC-TFE3, 2 cases of LUC7L3-TFE3, 4 cases of MED15-TFE3, and 1 case of RBM10-TFE3. The survival analysis results revealed that among the 12 patients with cT 1b stage tumors who underwent radical nephrectomy (RN), the progression-free survival (PFS) was 35 (14, 109) months, which was significantly better than the NSS group ( P=0.041). However, for the 14 patients with cT 1a stage tumors who underwent RN, there was no statistically significant difference in overall survival (OS) and PFS compared to the NSS group, with OS being 55(27, 134) months and PFS being 71(41, 134) months. Stratifying according to TFE3 fusion subtypes, it was found that patients with ASPL-TFE3 fusion had a significantly lower PFS compared to those with non-ASPL-TFE3 fusion subtypes ( P=0.029). Survival analysis revealed that tumor diameter, surgical approach, adjuvant therapy, AJCC staging, venous tumor thrombus, and lymph node metastasis were associated with OS and PFS( P<0.05). The results of the multivariate Cox regression analysis showed that AJCC stage Ⅲ/Ⅳ( HR=2.393, 95% CI 1.418-4.039, P=0.001) and venous tumor thrombus ( HR=3.543, 95% CI 1.159-10.827, P=0.026) were independent risk factors for progression-free survival (PFS). Conclusions:During the non-enhanced phase of CT scan, TFE3 rRCC tumors can exhibit a circular calcification. TFE3 immunohistochemistry is an important screening method for TFE3 rRCC.Break-apart TFE3 FISH probe detection is considered the diagnostic gold standard, and gene sequencing, if feasible, can provide the subtype diagnosis of TFE3 rRCC. For cT 1a stage TFE3 rRCC, partial nephrectomy (NSS) is a viable option, while caution should be taken in selecting NSS for cT1b stage patients. Patients with ASPL-TFE3 fusion subtype have a worse prognosis. AJCC stage Ⅲ/Ⅳ and venous tumor thrombus indicate poor prognosis in TFE3 rRCC.

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