scholarly journals Construction and Validation of a Lung Cancer Diagnostic Model Based on 6-Gene Methylation Frequency in Blood, Clinical Features, and Serum Tumor Markers

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Chunyan Kang ◽  
Dandan Wang ◽  
Xiuzhi Zhang ◽  
Lingxiao Wang ◽  
Fengxiang Wang ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Survival Rate ◽  
Tumor Marker ◽  
Cancer Patients ◽  
Clinical Information ◽  
Diagnostic Model ◽  
Tissue Samples ◽  
Methylation Frequency ◽  
Lung Cancer Patients ◽  
Model Based

Lung cancer has a high mortality rate. Promoting early diagnosis and screening of lung cancer is the most effective way to enhance the survival rate of lung cancer patients. Through computer technology, a comprehensive evaluation of genetic testing results and basic clinical information of lung cancer patients could effectively diagnose early lung cancer and indicate cancer risks. This study retrospectively collected 70 pairs of lung cancer tissue samples and normal human tissue samples. The methylation frequencies of 6 genes (FHIT, p16, MGMT, RASSF1A, APC, DAPK) in lung cancer patients, the basic clinical information, and tumor marker levels of these patients were analyzed. Then, the python package “sklearn” was employed to build a support vector machine (SVM) classifier which performed 10-fold cross-validation to construct diagnostic models that could identify lung cancer risk of suspected cases. Receiver operation characteristic (ROC) curves were drawn, and the performance of the combined diagnostic model based on several factors (clinical information, tumor marker level, and methylation frequency of 6 genes in blood) was shown to be better than that of models with only one pathological feature. The AUC value of the combined model was 0.963, and the sensitivity, specificity, and accuracy were 0.900, 0.971, and 0.936, respectively. The above results revealed that the diagnostic model based on these features was highly reliable, which could screen and diagnose suspected early lung cancer patients, contributing to increasing diagnosis rate and survival rate of lung cancer patients.

Long-Term Survival Associated With Complete Resection After Induction Chemotherapy in Stage IIIA (N2) and IIIB (T4N0-1) Non–Small-Cell Lung Cancer Patients: The Spanish Lung Cancer Group Trial 9901

2007 ◽  
Vol 25 (30) ◽  
pp. 4736-4742 ◽  
Author(s):  
Pilar Garrido ◽  
José Luis González-Larriba ◽  
Amelia Insa ◽  
Mariano Provencio ◽  
Antonio Torres ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Survival Rate ◽  
Cancer Patients ◽  
Induction Chemotherapy ◽  
Complete Resection ◽  
Small Cell ◽  
Stage Iiib ◽  
Small Cell Lung ◽  
Stage Iiia ◽  
Lung Cancer Patients

PurposeTo assess the activity of induction chemotherapy followed by surgery in stage IIIA and selected stage IIIB non–small-cell lung cancer patients.Patients and MethodsMediastinoscopy proof of either positive N2 (IIIA) or T4N0-1 (IIIB) disease was required. Induction therapy was three cycles of cisplatin/gemcitabine/docetaxel, followed by surgery.ResultsFrom December 1999 to March 2003, 136 patients were entered onto the study; the clinical response rate in 129 assessable patients was 56%. The overall complete resection rate was 68.9% of patients eligible for surgery (72% of stage IIIA patients and 66% of stage IIIB patients) and 48% of all assessable patients. Eight (12.9%) of 62 completely resected patients had a pathologic complete response. Seven patients (7.8%) died during the postoperative period. The median overall survival time was 15.9 months, 3-year survival rate was 36.8%, and 5-year survival rate was 21.1%, with no significant differences in survival between stage IIIA and stage IIIB patients. Median survival time was 48.5 months for 62 completely resected patients, 12.9 months for 13 incompletely resected patients, and 16.8 months for 15 nonresected patients (P = .005). Three- and 5-year survival rates were 60.1% and 41.4% for completely resected patients, 23.1% and 11.5% for incompletely resected patients, and 31.1% and 0% for nonresected patients, respectively. In the multivariate analysis, complete resection (hazard ratio [HR] = 0.35; P < .0001), clinical response (HR = 0.32; P < .0001), and age younger than 60 years (HR = 0.64; P = .027) were the most powerful prognostic factors.ConclusionInduction chemotherapy followed by surgery is effective in stage IIIA and in selected stage IIIB patients attaining complete resection.

scholarly journals Evaluation of chemotherapy response between Paclitaxel-Cisplatin, Paclitaxel -Gemcitabine and Gemcitabine - Cisplatin among non - resectable lung cancer patients, A retrospective study in tertiary care hospital.

2020 ◽  
Vol 38 (4) ◽  
pp. 172-175
Author(s):  
Md Harun Or Rashid ◽  
Quadrat E Elahi ◽  
Md Ashraful Alam ◽  
Fatima Sarker
Keyword(s):  
Lung Cancer ◽  
Survival Rate ◽  
Survival Time ◽  
Cancer Patients ◽  
Median Survival ◽  
Median Survival Time ◽  
Chemotherapy Response ◽  
Care Hospital ◽  
Lung Cancer Patients ◽  
Significant Difference

Background: To compare the survival rate of paclitaxel plus cisplatin (PC arm), paclitaxel plus gemcitabine (PG arm) and gemcitabine plus cisplatin (GC arm) in chemotherapy patients with non resectable lung cancer. Methods: This was a retrospective observational study to evaluate chemotherapy response among non resectable lung cancer patients with their survival at cancer center CMH, Dhaka since 01 July 2013 to 31 March 2015. One hundred fifty-four (154) non resectable lung cancer patients were randomly divided into three groups, 50 patients in PC arm, 51 patients in PG arm and 53 patients in GC arm. In PC arm paclitaxel 175 mg/m2 (day 1) with cisplatin 75mg/m2 (day 1), in PG arm Paclitaxel 175 mg/m2 (day 1) with gemcitabine 1000 mg/m2 (days 1 and 8) and in GC arm gemcitabine 1000 mg/m2 (days 1 and 8) with cisplatin 100mg/m2 (day 1). Results: Patients characteristics were similar between the three groups. The overall response rate was 40% in the PC arm,43.1% in the PG arm, 43.4% in the GC arm. The median survival time in PC arm was 8.5 months, in PG arm was 8.8 months, in GC arm was 9.2 months. The major side effect was myelosuppression which accounts 71% patients. The average treatment costs were 57% and 30% lower in PC arm as compared with GC and PG arm respectively. Conclusion: The median survival time, disease free survival time and 1-year survival rate in PC, PG, GC arms without significant difference. Treatment were well tolerable; quality of life parameter was mostly similar but paclitaxel with cisplatin was most cost effective than others chemotherapy regimen. J Bangladesh Coll Phys Surg 2020; 38(4): 172-175

scholarly journals PDS5B inhibits cell proliferation, migration, and invasion via upregulation of LATS1 in lung cancer cells

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Hui Xu ◽  
Wenjing Zhou ◽  
Fan Zhang ◽  
Linhui Wu ◽  
Juan Li ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Cell Viability ◽  
Cancer Patients ◽  
Immunohistochemical Study ◽  
Migration And Invasion ◽  
Tissue Samples ◽  
Lung Cancer Patients ◽  
Underlying Mechanisms ◽  
Mtt Assays

AbstractPDS5B (precocious dissociation of sisters 5B) plays a pivotal role in carcinogenesis and progression. However, the biological functions of PDS5B in lung cancer and its underlying mechanisms are not fully elucidated. In the present study, we used MTT assays, wound-healing assays, and transwell migration and invasion approach to examine the cell viability, migration, and invasion of non-small cell lung cancer (NSCLC) cells after PDS5B modulation. Moreover, we investigated the function of PDS5B overexpression in vivo. Furthermore, we detected the expression of PDS5B in tissue samples of lung cancer patients by immunohistochemical study. We found that upregulation of PDS5B repressed cell viability, migration, and invasion in NSCLC cells, whereas downregulation of PDS5B had the opposite effects. We also observed that PDS5B overexpression retarded tumor growth in nude mice. Notably, PDS5B positively regulated LATS1 expression in NSCLC cells. Strikingly, low expression of PDS5B was associated with lymph node metastasis in lung cancer patients. Our findings suggest that PDS5B might be a therapeutic target for lung cancer.

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