1.Evaluation of the clinical relevant effect of hospital-wide blood glucose management in perioperative cholelithiasis patients with type 2 diabetes
Jie YANG ; Shiwei LIU ; Wanrong DOU ; Le JIANG ; Qianqian YANG ; Ruixue DUAN ; Chenxia ZHANG ; Jie ZHENG
Chinese Journal of Clinical Nutrition 2024;32(1):44-49
Objective:To evaluate the clinical relevant effect of hospital-wide blood glucose management in perioperative cholelithiasis patients with type 2 diabetes.Methods:The subjects of the study were patients with type 2 diabetes mellitus complicated with cholelithiasis who were treated at the Baiqiu'en Hospital in Shanxi from September 2022 to October 2023. The patients were divided into hospital-wide blood sugar management group and conventional treatment group, according to different blood glucose management they received. The differences in preoperative blood glucose control, length of stay, postoperative complications, and hospitalization expenses between the two groups were compared.Results:Compare based on the median (quartiles) of the observed indicators, patients with cholelithiasis who underwent hospital-wide blood glucose management based on insulin pumps had a higher proportion of time in range [72.00(70.21, 82.90)% vs. 64.80 (61.55,70.50)%, P<0.001)], lower average blood glucose level [9.00 (8.55, 10.44) mmol/L vs. 11.50 (10.50, 12.50) mmol/L, P<0.001], and shorter hospital stay [8.00 (7.00,13.00) days vs. 10.00 (8.00, 12.00) ) days, P<0.05]. Moreover, the incidence of postoperative complications was lower [5(11.11)% vs. 15(33.33)%, P<0.05], and hospitalization expenses were lower [16 535.34 (14 271.44, 29 569.23) yuan vs. 18 633.85 (17 482.66) yuan , 22 855.02) yuan, P<0.05] in patients who received hospital-wide blood glucose management. Conclusion:Hospital-wide blood glucose management based on insulin pumps showed favorable effects in the perioperative clinical application in cholelithiasis patients with type 2 diabetes, and could contribute to shortening the average length of stay, reducing hospitalization costs, and reducing postoperative complications.
2.Arterial prophylactic occlusion technique in the application of surgery for locally advanced pancreatic cancer with arterial involvement after conversion therapy
Kailian ZHENG ; Xinyu LIU ; Xiaohan SHI ; Huan WANG ; Xiaoyi YIN ; Xinqian WU ; Lingyun GU ; Penghao LI ; Yikai LI ; Wei JING ; Shiwei GUO ; Bin SONG ; Suizhi GAO ; Gang JIN
Chinese Journal of Surgery 2024;62(10):938-946
Objective:To investigate and compare the clinical outcomes of the arterial pre-occlusion technique(APOT) and the traditional technique in the surgery of locally advanced pancreatic cancer with arterial involvement after conversion therapy.Methods:This is a retrospective cohort study. The clinical data of 145 patients with locally advanced pancreatic cancer with arterial involvement admitted to the Department of Hepato-Biliary-Pancreatic Surgery of the First Hospital Affiliated to Naval Medical University,from January 2020 to December 2022 were retrospectively analyzed. All patients completed neoadjuvant therapy for tumors, and the feasibility of radical surgical treatment was determined by a multidisciplinary collaborative team evaluation before surgery. According to whether the intraoperative artery was pre-occluded, 145 patients were divided into two groups, including 28 cases in the APOT group(16 males, 12 females, aged (59.0±9.4) years), and 117 cases in the routine surgery group(76 males, 41 females, aged (55.1±8.2) years). To ensure comparability of baseline data between the APOT group and the routine surgery group, a 1∶2 match was performed using the propensity score matching method, and the caliper value was 0.006 45. The t-test,the Mann-Whitney U test, χ2 test or Fisher′s exact test were used to compare the data between the two groups,respectively. Results:After matching the propensity score,there were 28 cases in the APOT group and 56 cases in the routine surgery group. There were no significant differences in gender,age,preoperative comorbidities,preoperative body mass index,surgical approaches,chemotherapy regimen,stereotactic body radiation therapy ratio,tumor markers,and type of invaded artery between the two groups (all P>0.05).The arterial occlusion time M(IQR) in the APOT group was 7.0(3.8)minutes(range:3 to 15 minutes),and no ischemic manifestations were observed in the distal target organs that blocked blood vessels after surgery. The operation time was (170.3±57.7)minutes in the APOT group and (235.0±80.2)minutes in the routine surgery group,and the difference was statistically significant ( t=-3.800, P<0.01). The APOT group also experienced less intraoperative blood loss(650(588)ml vs. 800(600)ml; U=1 026.500, P=0.021). No significant differences were found between the groups in combined vein resection and reconstruction,celiac trunk resection,early postoperative complications, readmission rates at 30 days,and postoperative length of stay(all P>0.05). Extra-arterial dissection was performed in all patients,with arterial resection and reconstruction in 3 cases: 2 cases in the APOT group(1 case involving the superior mesenteric artery and 1 case involving the common hepatic artery) and 1 case in the routine group(involving the common hepatic artery). Postoperative abdominal bleeding occurred in 4 cases,with 3 cases in the routine group,1 case in the routine group. The R0 resection rate was 85.7%(24/28) in the APOT group and 80.4%(45/56) in the routine group,without significant differences between the groups( P=0.763). The median overall survival time was 27.6 months for the APOT group and 22.5 months for the routine group,while the median disease-free survival was 11.7 months and 16.8 months,respectively,with no significant differences between the two groups( P=0.532, P=0.927). Conclusion:The arterial pre-occlusion technique can be used for extra-arterial dissection in patients with locally advanced pancreatic cancer involving the arteries,reducing surgery time and intraoperative blood loss.
3.Arterial prophylactic occlusion technique in the application of surgery for locally advanced pancreatic cancer with arterial involvement after conversion therapy
Kailian ZHENG ; Xinyu LIU ; Xiaohan SHI ; Huan WANG ; Xiaoyi YIN ; Xinqian WU ; Lingyun GU ; Penghao LI ; Yikai LI ; Wei JING ; Shiwei GUO ; Bin SONG ; Suizhi GAO ; Gang JIN
Chinese Journal of Surgery 2024;62(10):938-946
Objective:To investigate and compare the clinical outcomes of the arterial pre-occlusion technique(APOT) and the traditional technique in the surgery of locally advanced pancreatic cancer with arterial involvement after conversion therapy.Methods:This is a retrospective cohort study. The clinical data of 145 patients with locally advanced pancreatic cancer with arterial involvement admitted to the Department of Hepato-Biliary-Pancreatic Surgery of the First Hospital Affiliated to Naval Medical University,from January 2020 to December 2022 were retrospectively analyzed. All patients completed neoadjuvant therapy for tumors, and the feasibility of radical surgical treatment was determined by a multidisciplinary collaborative team evaluation before surgery. According to whether the intraoperative artery was pre-occluded, 145 patients were divided into two groups, including 28 cases in the APOT group(16 males, 12 females, aged (59.0±9.4) years), and 117 cases in the routine surgery group(76 males, 41 females, aged (55.1±8.2) years). To ensure comparability of baseline data between the APOT group and the routine surgery group, a 1∶2 match was performed using the propensity score matching method, and the caliper value was 0.006 45. The t-test,the Mann-Whitney U test, χ2 test or Fisher′s exact test were used to compare the data between the two groups,respectively. Results:After matching the propensity score,there were 28 cases in the APOT group and 56 cases in the routine surgery group. There were no significant differences in gender,age,preoperative comorbidities,preoperative body mass index,surgical approaches,chemotherapy regimen,stereotactic body radiation therapy ratio,tumor markers,and type of invaded artery between the two groups (all P>0.05).The arterial occlusion time M(IQR) in the APOT group was 7.0(3.8)minutes(range:3 to 15 minutes),and no ischemic manifestations were observed in the distal target organs that blocked blood vessels after surgery. The operation time was (170.3±57.7)minutes in the APOT group and (235.0±80.2)minutes in the routine surgery group,and the difference was statistically significant ( t=-3.800, P<0.01). The APOT group also experienced less intraoperative blood loss(650(588)ml vs. 800(600)ml; U=1 026.500, P=0.021). No significant differences were found between the groups in combined vein resection and reconstruction,celiac trunk resection,early postoperative complications, readmission rates at 30 days,and postoperative length of stay(all P>0.05). Extra-arterial dissection was performed in all patients,with arterial resection and reconstruction in 3 cases: 2 cases in the APOT group(1 case involving the superior mesenteric artery and 1 case involving the common hepatic artery) and 1 case in the routine group(involving the common hepatic artery). Postoperative abdominal bleeding occurred in 4 cases,with 3 cases in the routine group,1 case in the routine group. The R0 resection rate was 85.7%(24/28) in the APOT group and 80.4%(45/56) in the routine group,without significant differences between the groups( P=0.763). The median overall survival time was 27.6 months for the APOT group and 22.5 months for the routine group,while the median disease-free survival was 11.7 months and 16.8 months,respectively,with no significant differences between the two groups( P=0.532, P=0.927). Conclusion:The arterial pre-occlusion technique can be used for extra-arterial dissection in patients with locally advanced pancreatic cancer involving the arteries,reducing surgery time and intraoperative blood loss.
4.Analysis of osteoporosis-related biomarker levels in patients with subclinical hypothyroidism complicated with type 2 diabetes mellitus
Jie ZHENG ; Ruixue DUAN ; Yuxiang ZHAO ; Xin LI ; Xiaoqin CHEN ; Shiwei LIU
Chinese Journal of Health Management 2024;18(4):279-283
Objective:To investigate the levels of osteoporosis-related biomarkers in individuals with subclinical hypothyroidism complicated by type 2 diabetes mellitus.Methods:A cross-sectional study. From January 2021 to June 2022, 40 patients with subclinical hypothyroidism, 40 patients with type 2 diabetes, 40 patients with type 2 diabetes complicated with subclinical hypothyroidism, and 40 individuals receiving physical examination in Shanxi Bethune Hospital were selected as subjects in this study. The glucose and lipid metabolism indexes and bone metabolism indexes of the subjects were detected, and the differences and correlations of the metabolic indexes among the groups were analyzed by t-tests, nonparametric tests or correlation analysis. Results:Compared with healthy group, beta C-terminal cross-linked telopeptides of type Ⅰ collagen (β-CTX) level in type 2 diabetes group was higher [(344.60±125.61) vs (227.56±68.33) pg/ml] ( t=-5.176, P<0.001), osteocalcin (OC) and total procollagen type 1 aminoterminal peptide (t-PINP) were both lower [(15.76±4.70) vs (28.02±5.83)ng/ml, (43.49±13.63) vs (59.58±15.80) ng/ml] ( t=10.352, t=4.874, P<0.001). The β-CTX level in type 2 diabetes patients complicated with hypothyroidism was higher than that in patients with simple subclinical hypothyroidism [(380.51±122.22) vs (212.41±44.17) pg/ml] ( t=-8.180 ,P<0.001), but the levels of OC and t-PINP were both lower [(13.67±4.06) vs (26.12±4.55) ng/ml, (38.76±9.53) vs (61.50±12.31) ng/ml] ( t=12.897, P<0.001); but there was no significant difference in the three biomarkers between patients with type 2 diabetes mellitus complicated by subclinical hypothyroidism and those with type 2 diabetes mellitus alone. [β-CTX: (380.51±122.22) vs (344.60±125.61) pg/ml, OC: (13.67±4.06) vs (15.76±4.70) ng/ml, t-PINP: (38.76±9.53) vs (43.49±13.63) ng/ml] ( t=1.296,1.890,-1.799 ,all P>0.05). In the patients with type 2 diabetes mellitus complicated by subclinical hypothyroidism, the β-CTX was positively correlated with fasting blood glucose (FBG) and glycosylated hemoglobin (HbA1c)( r=0.293,0.487,all P<0.05), while OC and t-PINP were negatively correlated with FBG and HbA1c ( r=-0.560,-0.502,-0.289,-0.326, P<0.05). Conclusion:Changes of serum osteoporosis-related biomarkers in subclinical hypothyroidism patients with type 2 diabetes indicate the increased risk of osteoporosis in those patients.
5.Development of a risk prediction model for acute cerebral infarction in patients with type 2 diabetes mellitus
Rong YANG ; Jie ZHENG ; Jiaojiao GUO ; Caiyun GUO ; Shiwei LIU
Chinese Journal of Health Management 2024;18(12):886-893
Objective:To develop a risk prediction model of acute cerebral infarction (ACI) in patients with type 2 diabetes mellitus (T2DM).Methods:It was a cross-sectional study. The clinical data of 798 patients with T2DM hospitalized in the Department of Endocrinology and Neurology of Shanxi Bethune Hospital from August 2021 to October 2023 were collected. Based on whether they had concurrent ACI, the patients were divided into T2DM with ACI group (case group) and pure T2DM group (control group). The patients were then allocated to a training set ( n=558) and a validation set ( n=240) in a 7∶3 ratio by the sample functions in R software. LASSO regression was employed to screen and optimize variables, and a multivariate logistic regression analysis was used to establish the nomogram prediction model. The discriminative ability, calibration, and clinical usefulness of the risk prediction model were assessed with receiver operating characteristic (ROC) curves, calibration curves, and decision curve analysis, respectively. Results:LASSO regression identified gender, age, systolic blood pressure, fasting plasma glucose (FPG), albumin (ALB), and carotid vascular condition as the variables for prediction. The multivariable logistic regression analysis showed that female ( OR=0.489, 95% CI: 0.308-0.778) and ALB ( OR=0.846, 95% CI: 0.795-0.901) were protective factors for ACI occurrence in T2DM patients, while age ( OR=1.051, 95% CI:1.025-1.077), systolic blood pressure ( OR=1.047, 95% CI: 1.034-1.059), FPG ( OR=1.185, 95% CI: 1.089-1.288), and carotid plaque ( OR=7.359, 95% CI: 3.050-17.756) were risk factors. The area under the ROC curve (AUC) for risk of ACI in the training set was 0.863(95% CI: 0.833-0.893), and it was 0.846(95% CI: 0.797-0.896) for the validation set. Calibration curves and the Hosmer-Lemeshow goodness-of-fit test indicated good model fit (training set χ2=8.311, P=0.404; validation set χ2=3.957, P=0.861). Decision curve analysis showed that the clinical effectiveness of the model was higher when the threshold probabilities of the training set and the validation set was 0.02-0.93 and 0.12-0.99, respectively. Conclusion:In this study, a prediction model of ACI risk in T2DM patients was successfully established.
6.Clinical manifestations and hormonal profile characteristics of different pathological types of adrenocortical adenoma hypercortisolism
Lin LIU ; Shiwei CHEN ; Jingcui GUO ; Xiaoteng YU ; Zheng ZHANG ; Ying GAO ; Junqing ZHANG
Chinese Journal of Urology 2024;45(4):287-293
Objective:To explore the clinical manifestations and characteristics of serum adrenal cortex hormone spectrum in patients with adrenocortical hypercortisolism with different pathological types of adrenal adenoma.Methods:A retrospective analysis was conducted on 68 patients with adrenal Cushing's syndrome who underwent surgical treatment in the Department of Endocrinology and/or Urology, Peking University First Hospital from January 2018 to June 2022. Among them, 12 patients had obvious eosinophilic changes in pathology(eosinophilic group), and 56 patients had no obvious eosinophilic changes(non-eosinophilic group). Among eosinophilic group, one male and 11 females, age(49.83±9.87) years old, body mass index (BMI)(25.86±3.21) kg/m 2, systolic blood pressure (140.25±20.72)mmHg(1 mmHg=0.133 kPa), diastolic blood pressure(91.00±14.87)mmHg, 7 cases were overt Cushing's syndrome. Among non-eosinophilic group, 14 males and 32 females, age(52.91±10.82) years old, BMI (26.06 ± 3.57) kg/m 2; ystolic blood pressure (142.13±16.71) mmHg, diastolic blood pressure (83.63±11.41) mmHg; 16 cases of overt Cushing's syndrome. There was no statistically significant difference in the above indicators between the two groups ( P>0.05).In terms of laboratory tests, 0: 00 cortisol levels in the eosinophilic group and non-eosinophilic groups were 14.95(5.93, 23.2) ng/dl and 6.69(4.07, 11.35) ng/dl ( P=0.044), the cortisol levels after 1mg dexamethasone inhibition test were 20.19(11.29, 26.92) ng/dl and 5.94(2.68, 12.90) ng/dl ( P=0.005), and 8: 00, 16: 00, and 0: 00, ACTH levels were 2.08 (1.02, 2.90) pg/ml and 8.37(2.30, 11.67) pg/ml ( P=0.006), 1.22(1.00, 3.20) pg/ml, and 4.22(1.80, 6.33) pg/ml ( P=0.012), 0.65 (0, 2.63) pg/ml, and 2.76(1.44, 5.57) pg/ml( P=0.023), serum triglyceride were 1.92(1.31, 2.50) mmol/L and 1.31(1.04, 1.80) mmol/L ( P=0.026), and the differences were statistically significant. In terms of target organ damage, there were 6 cases and 10 cases ( P=0.017) in the eosinophilic group and non eosinophilic group with ventricular wall hypertrophy, 1 case and 0 cases( P=0.030) in the aortic dissection group, and 4 cases and 5 cases ( P=0.024) with four or more types of target organ damage, respectively, with statistically significant differences. Two groups of preoperative serum adrenal cortex hormone profiles were detected by liquid chromatography tandem mass spectrometry. The differences in adrenal cortex hormone profiles and hormone ratios between the two groups were compared. Age, gender, and statistically significant indicators were included in a multivariate logistic regression model to analyze the correlation between each indicator and eosinophilic changes. Results:Adrenal cortical hormone profile of the two groups showed that the serum estrone levels in the eosinophilic group and non-eosinophilic group were 20.27(13.49, 39.81) pg/ml and 12.59(8.08, 21.18) pg/ml ( P=0.034), and 11-hydroxyandrostenedione levels were 692.34(536.19, 1 049.66) pg/ml and 1 157.60(710.78, 1 539.30) pg/ml( P=0.026), with statistically significant differences; There were no statistically significant difference in the expression levels of other hormones ( P>0.05). In terms of hormone ratio, the estradiol/testosterone ratios in the eosinophilic and non eosinophilic groups were 0.14(0.08, 0.62) and 0.04(0.01, 0.09)( P=0.008), the estrone/androstenedione ratios were 0.06(0.05, 0.12) and 0.04(0.03, 0.06)( P=0.007), the 11-hydroxyandrostenedione/androstenedione ratios were 2.26(1.30, 2.69) and 4.03(2.48, 5.25)( P=0.008), the estriol/estrone ratios were 0.10(0.03, 0.29) and 0.25(0.12, 0.51)( P=0.016), the estriol/estradiol were 0.22(0.03, 0.30) and 0.33(0.12, 0.73)( P=0.032), and the differences were statistically significant. The results of multivariate analysis showed that estrone ( OR=1.04, 95% CI 1.01-1.07, P=0.009) and estrone/androstenedione ( OR=25 008 670.29, 95% CI 8.45-74 015 852 572 024.10, P=0.025) were independently associated with eosinophilic pathology. Conclusions:Adrenocortical hypercortisolism patients with eosinophilic pathology have higher levels of serum cortisol secretion, more pronounced inhibition of the hypothalamic pituitary adrenal axis, more significant metabolic disorders and target organ damage, and higher production of estrone.
7.Impact of dynamically-modified management on patients with type 2 diabetes mellitus in the context of diagnosis-related group system
Jie ZHENG ; Shiwei LIU ; Qianqian YANG ; Ruixue DUAN ; Wanrong DOU ; Chenxia ZHANG
Chinese Journal of Clinical Nutrition 2023;31(6):330-335
Objective:To analyze and compare the effects of conventional treatment and the dynamic 3C therapy, continuous glucose monitoring system, and on outcomes, length of hospital stay and medical costs in patients with type 2 diabetes mellitus.Methods:A total of 122 type 2 diabetes mellitus patients who visited the Department of Endocrinology of Shanxi Baiqiu'en Hospital between June 2022 and December 2022 were selected and randomized at 1:1 into the control group and the experimental group using the randomized numerical table method. The t-test and non-parametric test were used as appropriate to compare the glycemic control, length of hospital stay and medical costs of the two groups.Results:Before treatment, there was no significant difference in the indicators for blood glucose levels and fluctuations between the two groups ( P>0.05). After treatment, the glycosylated hemoglobin, fasting plasma glucose, and 2-hour postprandial blood glucose decreased in both groups. Moreover, the glycosylated hemoglobin, fasting plasma glucose, and 2-hour postprandial blood glucose showed more significant decreases in the experimental group compared with the control group after treatment. The glycemic variability indicators, including the time out of range, standard deviation of blood glucose, and the largest amplitude of glycemic excursion, decreased after treatment in both groups. The time in range increased after treatment. After treatment, the standard deviation of blood glucose and the largest amplitude of glycemic excursion in the experimental group were lower than those in the control group, and the length of hospital stay in the experimental group was shortened (all P<0.05). Conclusion:3C therapy contributes to better glycemic control and shorter hospital stay in patients with type 2 diabetes mellitus.
8.Predictive value of neutrophil-lymphocyte ratio for Trousseau’s syndrome in patients with acute multiple cerebral infarctions
Lelin YU ; Hailong SHANG ; Hongdi DU ; Ying WANG ; Yichao WANG ; Changhe XU ; Zhenkai LI ; Shiwei ZHAO ; Fanghui ZHENG ; Hailin SHEN
International Journal of Cerebrovascular Diseases 2022;30(3):174-178
Objective:To investigate the predictive value of neutrophil-lymphocyte ratio (NLR) for Trousseau’s syndrome (TS) in patients with acute multiple cerebral infarctions (AMCI).Methods:The patients with AMCI in Suzhou Kowloon Hospital, Shanghai Jiaotong University School of Medicine from July 2013 to March 2022 were retrospectively enrolled. The demographic and baseline clinical data of patients with TS and those without TS were compared. Multivariate logistic regression analysis was used to determine the independent influencing factors of TS-AMCI, and receiver operating characteristic (ROC) curve was used to evaluate the predictive value of NLR for TS-AMCI. Results:A total of 59 patients with AMCI were enrolled, including 43 males and 16 females, aged 64.9±14.0 years. There were 16 patients in the TS-AMCI group and 43 in the non-TS-AMCI group. The proportions of patients with diabetes mellitus, hypertension and previous stroke or transient ischemic attack in the TS-AMCI group were significantly lower than those in the non-TS-AMCI group (all P<0.05), while the proportion of patients with ischemic heart disease were significantly higher than that in the non-TS-AMCI group ( P<0.05). The proportion of patients with bilateral infarction in the TS-AMCI group was significantly higher than that in the non-TS-AMCI group ( P<0.001). The D-dimer, NLR, white blood cell count, neutrophil count, monocyte count, percentage of neutrophils, total cholesterol and low-density lipoprotein cholesterol in the TS-AMCI group were significantly higher than those in the non-TS-AMCI group (all P<0.001), while the lymphocyte count, lymphocyte percentage, red blood cell count, hemoglobin and hematocrit were significantly lower than those in the non-TS-AMCI group (all P<0.001). Multivariate logistic regression analysis showed that high NLR was an independent predictor of TS-AMCI (odds ratio [ OR] 2.897, 95% confidence interval [ CI] 1.270-6.527; P=0.011), while high hemoglobin was independently negatively correlated with TS-AMCI ( OR 0.839, 95% CI 0.723-0.975; P=0.022). ROC curve analysis showed that the area under the curve of NLR for predicting TS-AMCI was 0.929 (95% CI 0.831-0.979; P<0.001). When the NLR cutoff value was 4.01, the corresponding Youden index was 0.744. At this time, the sensitivity and specificity were 100% and 74.42% respectively. Conclusion:NLR has high predictive value for TS-AMCI.
9.PRKCDBP Methylation is a Potential and Promising Candidate Biomarker for Non-small Cell Lung Cancer.
Jing LI ; Lin QI ; Mingfang ZHANG ; Caiyun YAO ; Jinan FENG ; Zhonghua ZHENG ; Chujia CHEN ; Shiwei DUAN ; Yuanlin QI
Chinese Journal of Lung Cancer 2022;25(2):78-85
BACKGROUND:
The occurrence and development of lung cancer are closely linked to epigenetic modification. Abnormal DNA methylation in the CpG island region of genes has been found in many cancers. Protein kinase C delta binding protein (PRKCDBP) is a potential tumor suppressor and its epigenetic changes are found in many human malignancies. This study investigated the possibility of PRKCDBP methylation as a potential biomarker for non-small cell lung cancer (NSCLC).
METHODS:
We measured the methylation levels of PRKCDBP in the three groups of NSCLC tissues. Promoter activity was measured by the dual luciferase assay, with 5'-aza-deoxycytidine to examine the effect of demethylation on the expression level of PRKCDBP.
RESULTS:
The methylation levels of PRKCDBP in tumor tissues and 3 cm para-tumor were higher than those of distant (>10 cm) non-tumor tissues. Receiver operating characteristic (ROC) curve analysis between tumor tissues and distant non-tumor tissues showed that the area under the line (AUC) was 0.717. Dual luciferase experiment confirmed that the promoter region was able to promote gene expression. Meanwhile, in vitro methylation of the fragment (PRKCDBP_Me) could significantly reduce the promoter activity of the fragment. Demethylation of 5'-aza-deoxycytidine in lung cancer cell lines A549 and H1299 showed a significant up-regulation of PRKCDBP mRNA levels.
CONCLUSIONS
PRKCDBP methylation is a potential and promising candidate biomarker for non-small cell lung cancer.
Biomarkers/metabolism*
;
Carcinoma, Non-Small-Cell Lung/pathology*
;
Cell Line, Tumor
;
DNA Methylation
;
Gene Expression Regulation, Neoplastic
;
Humans
;
Intracellular Signaling Peptides and Proteins/genetics*
;
Lung Neoplasms/pathology*
;
Promoter Regions, Genetic
10.Effects of m 6A methylase METTL14 mediated long-chain non-coding RNA EIF3J-AS1 on the migration and invasion of cholangiocarcinoma cells
Liu OUYANG ; Hao ZHENG ; Wenying CHENG ; Yuanping TAO ; Huifen LI ; Xiaoling LI ; Lei ZHANG ; Bo LI ; Shiwei GUO ; Xiangui HU ; Gang JIN
Chinese Journal of Pancreatology 2021;21(2):123-128
Objective:To investigate the effects of methyltransferase-like protein 14 (METTL14)-mediated long-chain non-coding RNA EIF3J antisense RNA1 (Inc EIF3J-AS1) on the migration and invasion of cholangiocarcinoma cells and its mechanism.Methods:From September 2017 to December 2018, 10 pairs of cholangiocarcinoma and adjacent normal tissues were collected from the First Affiliated Hospital of Naval Medical University, which were surgically resected and pathologically confirmed. The expression of METTL14 mRNA and Inc EIF3J-AS1 in cholangiocarcinoma tissues was detected by fluorescence quantitative PCR, and the protein expression of METTL14 was detected by Western blotting. Cholangiocarcinoma cell lines HUCCTI and RBE were divided into control group and METTL14 or Inc EIF3J-AS1 knockdown group. The corresponding normal lentivirus was transfected in the control group, and METTL14 or Inc EIF3J-AS1 knockdown group was transfected with lentivirus that interfered with the expression of METTL14 or Inc EIF3J-AS1, respectively. Transwell assay was used to detect the ability of cell migration and invasion, and Western blotting was used to detect the expression of epidermal growth factor receptor (EGFR) and AKT protein.Results:The expressions of METTL14 mRNA and lnc EIF3J-AS1 in cholangiocarcinoma tissues were significantly higher than those in adjacent normal tissues (0.075±0.012 vs 0.031±0.006, 0.140±0.032 vs 0.064±0.012), and there was a positive correlation between expression of METTL4 mRNA and expression of lnc EIF3J-AS1 ( r=0.883, P=0.0007). The expression of METTL14 protein in cholangiocarcinoma tissues was higher than that in adjacent normal tissues (0.354±0.131 vs 0.187±0.183). Compared with the control group, the expression of lnc EIF3J-AS1 was significantly lower in METTL14 or Inc EIF3J-AS1 knockdown group (0.217±0.020 vs 1.000±0.052, 0.149±0.066 vs 1.000±0.045). The migration and invasion ability of cell lines HUCCTI and RBE decreased significantly in lnc EIF3J-AS1 knockout group (5.00±0.58 vs 23.33±0.33, 20.33±0.67 vs 70.67±0.33; 12.00±0.58 vs 25.00±2.52, 22.33±0.89 vs 43.67±0.33). The expression of EGFR and p-AKT/AKT protein were also significantly decreased (0.109±0.015 vs 1.000±0.018, 0.226±0.036 vs 1.000±0.051; 0.118±0.052 vs 1.000±0.069, 0.132±0.098 vs 1.000±0.023). The above differences were statistically significant (all P<0.05). Conclusions:Abnormal expression of lnc EIF3J-AS1 in cholangiocarcinoma mediated by METTL14 can promote tumor cell migration and invasion.

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