Efficacy and safety of daratumumab in the treatment of relapsed/refractory multiple myeloma: A meta-analysis of randomized controlled trials.

BACKGROUND: Daratumumab as a monoclonal antibody has shown promising results in the treatment of relapsed/refractory multiple myeloma (RRMM). However, the efficacy and safety of daratumumab-based regimens compared to control regimens have not been fully established. METHODS: The search was conducted using electronic databases (PubMed, Web of Science, Embase, and Cochrane Central Register of Controlled Trials databases) up to December 2022. We conducted a meta-analysis of randomized controlled trials that evaluated the efficacy and safety of daratumumab in the treatment of RRMM. Data were extracted from eligible studies and were presented as hazard ratio or risk ratio (RR) with 95% confidence interval (CI). RESULTS: A total of 5 randomized controlled trials comprising 2003 patients were included in this meta-analysis. The results showed that daratumumab-based regimens significantly improved progression-free survival compared to control regimens (hazard ratio = 0.44, 95% CI 0.32-0.60, P < .00001). Additionally, daratumumab-based regimens significantly improved overall response rate compared to control regimens (RR = 1.25, 95% CI 1.16-1.36, P < .00001). the rate of minimal residual disease was also significantly higher in the daratumumab-based regimens (RR = 6.10, 95% CI 4.09-9.11, P < .00001). However, there was an increased risk of pneumonia, upper respiratory tract infections, and diarrhea in the daratumumab-based regimens. CONCLUSION: Our results suggest that daratumumab-based regimens are effective in the treatment of RRMM, improving progression-free survival, minimal residual disease, and overall response rate. However, there is an increased risk of pneumonia, upper respiratory tract infections, and diarrhea. Further studies are needed to determine the long-term safety and efficacy of daratumumab in the treatment of multiple myeloma.

PRL-3 and MMP9 Expression and Epithelial-Mesenchymal Transition Markers in Circulating Tumor Cells From Patients With Colorectal Cancer: Potential Value in Clinical Practice.

Objective: To evaluate the clinical correlation of epithelial-mesenchymal transition (EMT) with PRL-3 and MMP9 expression in the circulating tumor cells (CTCs) of patients with colorectal cancer (CRC). Materials and Methods: Between January 2016 and December 2018, the EMT phenotype-based subsets of CTCs and the expression levels of PRL-3 and MMP9 in CTCs were identified, and their clinical values in 172 patients were evaluated. The CTCs were isolated, classified, and counted using the CanPatrol™ CTC filtration system. The CTC subsets (epithelial cells, mesenchymal cells and biphenotypic cells), as well as PRL-3 and MMP9 expression, were detected by RNA in situ hybridization. Results: CTCs were detected in 93.0% (160/172) of the included patients with CRC. Positive PRL-3 and MMP9 expression in CTC and M-CTC was found in 75.0% (102/136) and 80.8% (97/120) of the patients, respectively. The proportion of patients with positive PRL-3 and MMP9 expression in M-CTC was significantly associated with distant metastasis (p<0.05). The patients with ≥6 CTCs tended to show poorer progression-free survival (PFS) and overall survival (OS) rates (p=0.016, 0.02, respectively), and the patients with ≥3 M-CTC also showed poor PFS (p=0.0013). Additionally, the patients with positive PRL-3 and MMP9 expression in CTCs had significantly poorer PFS (p=0.0024) and OS (p=0.095) than the patients with negative PRL-3 and MMP9 expression. Multivariate Cox analysis uncovered that positive PRL-3 and MMP9 expression in CTCs may be an independent prognostic factor for worse PFS. Conclusion: EMT phenotypes and CTC numbers can be used as prognostic indicators for metastasis and survival in patients with CRC, and the combination of PRL-3 and MMP9 expression in CTCs is a promising clinical marker for patients with CRC.

Expression of DNM3 is associated with good outcome in colorectal cancer.

The aim of this study is to reveal the potential value of dynamin3 (DNM3) in colorectal cancer (CRC) evaluation of clinical diagnosis and prognosis. A total of 100 tissue samples were collected from 50 patients with stages I-IV, CRC tissues (n = 50) paired with non-cancerous adjacent colorectal tissues (n = 50). The expression levels of DNM3 were detected in 50 cases of CRC tissues and 50 cases of non-cancerous adjacent colorectal tissues by real-time fluorescent quantitative reverse transcription-polymerase chain reaction (RT-PCR). Immunohistochemical method (IHC) was conducted to semi-quantify the expression of DNM3 protein. Results showed that the relative expression of DNM3 mRNA in CRC tissues was 0.634-fold of that in non-cancerous adjacent colorectal tissues. The positive rate of DNM3 protein in CRC tissues (42.0%) was much lower than that in non-cancerous adjacent colorectal tissues (66.0%; P < 0.05). The expression level of DNM3 protein in CRC tissues was dependent on tumor size, degree of histological differentiation, and clinical stage (P < 0.05). The expression level of DNM3 mRNA in CRC tissues was significantly correlated with tumor size and pathology classification (P < 0.05). The research shows that detecting the expression of DNM3 helps in analyzing the tumor size, degree of histological differentiation, and clinical stage. Expression of DNM3 may be associated with good outcome in CRC.

Function and histopathology of a cell adhesion molecule TSLC1 in cancer.

Even less than a decade since the discovery of TSLC1, overwhelming evidence demonstrates that the loss of TSLC1 expression by methylation-mediated epigenetic silencing or LOH is crucially implicated in various processes during tumorigenesis. Here, we summarize TSLC1 function, highlighting the concept that TSLC1 mediates the formation of tumor suppressor network via its multidomain structure and bridges extracellular adhesive activity with intracellular signaling. Next, we focus on the histopathology of TSLC1 in various cancers and the association with clinicopathological characteristics. On the basis of these, we propose that TSLC1 represents a promising biomarker for cancer diagnosis and a potential target for cancer therapy.

Clinical study of XiangShaLiuJunZi decoction combined with S-1 as maintenance therapy for stage III or IV gastric carcinoma and colorectal carcinoma.

INTRODUCTION: S-1, a new oral fluorouracil chemotherapeutical drug, has been increasingly used in clinical maintenance after first-line chemotherapy for stage III or IV gastric carcinoma (GC) and colorectal carcinoma (CRC) for its own advantages. XiangshaLiujunzi Decoction (XSLJZD), a classic traditional Chinese medicine (TCM) formula with effects of alleviating the adverse reactions of chemotherapy and improving the quality of life of cancer patients has been gradually confirmed, with no more reports about the maintenance therapy mode of combination of chemotherapeutic drugs and TCM. We designed the study of XSLJZD combined with S-1 in the maintenance therapy of Stage III or IV GC and CRC, and hoped that this research program will go further and comprehensively evaluate its efficacy and safety. OBJECTIVES: The aim of this study was to determine the efficacy and safety of XSLJZD combined with S-1 in the maintenance therapy of stage III or IV GC and CRC. METHODS: This study is an open, single-center, randomized study. Patients with stage III or stage IV GC and CRC will be randomized (1:1) into S-1group, S-1 combined with XSLJZD group for 5 years of maintenance therapy. The primary endpoint was progression-free survival, and secondary end point was overall survival and Quality of Life Assessment (QOLA), which include an improvement in symptoms before and after treatment, Karnofsky Performance Status, and adverse events assessment. DISCUSSION: This study will provide meaningful clinical information about the combination of chemotherapeutic drugs S-1 with TCM in the maintenance therapy of stage III or IV GC and CRC. TRIAL REGISTRATION: Chinese Clinical Trial Registry: ChiCTR-INR-16008575.

[Effect of Shenqi Fuzheng injection combined with chemotherapy in treating advanced colorectal carcinoma].

OBJECTIVE: To compare the therapeutic effect and toxicity of chemotherapy, used alone or in combined with Shenqi Fuzheng Injection (SFI), for the treatment of advanced colorectal carcinoma (ACRC). METHODS: One hundred and fifty-two patients with ACRC were equally randomized by digital table, to the treated group, treated by chemotherapy of FOLFOX regimen combined with SFI, and the control group treated by FOLFOX regimen alone. The therapeutic effect and adverse reaction of the treatment in patients were assessed. RESULTS: The effective rate (CR +PR) was 63.2% (48/76) in the treated group and 46.1% (35/76) in the control group, showing significant difference between the two groups (P < 0.05). The median survival time in the two groups was 31 weeks and 28 weeks respectively. CD4/CD8 ratio was significantly increased in the treated group (1.56 +/- 0.21, 1.64 +/- 0.28, P < 0.05), but significantly decreased in the control group (1.58 +/- 0.22, 1.46 +/- 0.33, P < 0.01). Quality of life in the former group was higher than that in the latter group (P < 0.05). Times/case of nausea, vomiting, leukopenia occurring in the control group was more than those in the treated group A (P < 0.05). CONCLUSION: By combining with SFI, some adverse reactions of chemotherapy (such as nausea, vomiting, leukopenia) and its influence on patients' immunity could be alleviated in treating ACRC, which might enhance the efficacy of chemotherapy, and improve the quality of life and prolong the median survival time in patients.

An efficient method that combines the ThinPrep cytologic test with E6/E7 mRNA testing for cervical cancer screening.

Background: Cervical cancer is strongly associated with persistent human papillomavirus (HPV) infections. The ThinPrep cytologic test (TCT), HPV DNA detection, and E6/E7 mRNA testing are widely used to screen for cervical abnormalities. Purpose: This study aimed to find a suitable method for cervical cancer diagnosis (but not for cervical cancer distant metastasis), especially among women whose TCT results are atypical squamous cells of undetermined significance (ASCUS) or worse (including ASCUS). Patients and methods: A total of 301 samples from Wenzhou People's Hospital from June 2014 to September 2017 were collected, we conducted comparative analysis of the diagnostic performance of several conventional screening methods both individually and in combination. Results: We compared the sensitivity, specificity, positive predictive value, negative predictive value, and Youden index retrospectively estimated not only by single TCT, HPV DNA detection, or E6/E7 mRNA testing but also by combination methods, such as TCT+HPV DNA, TCT+E6/E7 mRNA, or TCT+HPV DNA+E6/E7 mRNA. Screening under TCT+E6/E7mRNA was confirmed with relatively higher sensitivity of 76.1% (95% CI: 0.659-0.841), specificity of 74.6% (95% CI: 0.681-0.803), and the highest Youden index of 0.507. Conclusion: The joint screening methods showed relatively reliable specificity and sensitivity for cervical disease screening, and detection by TCT+E6/E7 mRNA has the potential to be a widely used clinical method for cervical cancer screening.

Hospitalization costs of treating colorectal cancer in China: A retrospective analysis.

BACKGROUND: The objective of this study was to explore the influence factors of hospitalization costs of treating colorectal cancer in China. And the study provides new estimates on hospitalization costs and length of hospital stay for patients with colorectal cancer in China. METHODS: Data for inpatient hospitalization associated with colorectal cancer were obtained from a 3-tier hospital in Guangdong Province and were analyzed post hoc. We conducted descriptive statistical methods, Wilcoxon rank-sum tests (for 2 groups) and the Kruskal-Wallis test (for more than 2 groups) to analyze the hospitalization costs of treating colorectal cancer. RESULTS: The analysis included 8021 patients (female: 40.54%; mean age; 61.80 ±â€Š13.28 years; male: 59.46%; mean age: 61.80 ±â€Š13.28 years). The overall mean length of hospital stay was 11.35 days. Over the 5 years, the mean length of hospital stay showed a small decrease from 12.22 days in 2012 to 10.69 days in 2016, while per-day costs showed a trend of increase between 2012 and 2015 (increase from < 1190.94 to < 1382.50). The mean length of hospital stay was statistically significant difference was found for sexes (P = .039) and insurance status (P < .001). The mean hospitalization costs were < 16,279.58. Mean hospitalization costs were different among the UEBMI, the URBMI and the Unspecified (< 17,114.58, < 15,555.05, and < 17,735.30, respectively; P < .001). CONCLUSION: The study showed that hospitalization costs increase were associated with a small decreasing length of hospital stay and increasing per-day hospitalization costs. Moreover, the proportion of the hospitalization costs reimbursed by insurances increased. For inpatients with UEBMI, it possibly lead to over treatment and the medical expense rise which result in medical resources waste and significant society costs. The rising hospitalization costs may lead to a remarkably increased financial burden in the future in China.

Association of PHD3 and HIF2α gene expression with clinicopathological characteristics in human hepatocellular carcinoma.

Egl-9 family hypoxia-inducible factor (HIF)3/prolyl hydroxylase 3 (EGLN3/PHD3) serves a role in the progression and prognosis of cancer. PHD3 is able to induce apoptosis in HepG2 cells. In the present study, the protein levels of PHD3 and HIF2α were analyzed by western blot analysis and immunohistochemistry in 84 paired hepatocellular carcinoma (HCC) tissues and adjacent non-tumor liver tissues. The mRNA levels of PHD3 and HIF2α were analyzed by reverse transcription-quantitative polymerase chain reaction. PHD3 was overexpressed in HCC tissues compared with adjacent liver tissues (mRNA expression: P<0.001; protein expression: P=0.003; immunohistochemistry positive rate: P=0.001). The high level of expression of PHD3 in HCC tissues was associated with good differentiation (mRNA expression: P=0.002; protein expression: P<0.001) and small tumor size (mRNA expression: P<0.001; protein expression: P=0.002). In addition, HIF2α expression was lower in HCC tissues compared with adjacent liver tissues (mRNA expression: P<0.001; protein expression: P=0.002; immunohistochemistry positive rate: P=0.002). No statistically significant associations were identified between HIF2α expression and clinicopathological characteristics. Pearson's and Spearman's correlation coefficients revealed no correlation between HIF2α and PHD3 expression in HCC. In conclusion, PHD3 expression acts as a favorable prognostic marker for patients with HCC. There is no correlation between PHD3 and HIF2α expression in HCC.

Addition of bevacizumab to systemic therapy for locally advanced and metastatic nasopharyngeal carcinoma.

Radiotherapy is a vital treatment option for patients with nasopharyngeal carcinoma (NPC). Concurrent cisplatin-based radiochemotherapy with or without adjuvant chemotherapy had acquired good clinical effects with good local control rates. However, a number of patients present with metastasis following systemic regimens or initial diagnosis of locally advanced NPC, which cause difficulty for subsequent therapy. Therefore, there is an urgent requirement to discover novel targeted therapies. The present report describes one case of a patient with NPC and multiple metastases. The patient was treated with systemic therapy in combination with bevacizumab, palliative radiotherapy and chemotherapy following treatment with cetuximab and concurrent chemoradiotherapy in 2015. Following the addition of bevacizumab, metastases were reduced or disappeared after >2 months, and the duration of progression-free survival was 7 months. Bevacizumab is a monoclonal antibody that targets VEGF, and it is associated with angiogenesis, which causes the growth, invasion and progression of tumors. In previous studies, bevacizumab has been approved for the treatment of several types of malignant cancer and it has been able to effectively improve prognosis. In the present review, the effect of adding bevacizumab to systemic therapy for the treatment of NPC was analyzed, with a particular focus on advanced and metastatic diseases. A growing number of phase I/II clinical trials involving bevacizumab for NPC have been conducted with clinical outcomes showing improved rates of overall survival and progression-free survival as well as improvements in the quality of life of patients. However, severe or deadly toxicities can also result from combination treatment with bevacizumab. In the future, bevacizumab may become a common addition to systemic therapy for the treatment of locally advanced and metastatic NPC.

Breast cancer laterality and molecular subtype likely share a common risk factor.

BACKGROUND: To investigate the epidemiological features of breast cancer laterality and molecular subtypes in southern China. MATERIALS AND METHODS: A total of 2,049 cases who were diagnosed with unilateral breast cancer in the past 5 years were classified based on laterality and molecular subtypes. Molecular subtypes were defined in accordance with the 2013 St. Gallen recommendations. RESULTS: Breast cancer was more likely to be diagnosed in the left breast than in the right at a rate of around 5%. In the case of invasive carcinomas, the right breast was more commonly affected than the left in young (<40 years old) patients (left-to-right [L:R] ratio 0.80, 95% CI 0.65, 0.98), whereas the opposite trend was found in old (≥40 years old) patients (L:R ratio 1.06, 95% CI 1.02, 1.73). Except for invasive mucinous and invasive medullary breast cancers, the other histological types occurred more frequently on the left side than on the right. In situ cancer with a defined subtype was likely to be diagnosed as luminal B(HER-2+). Except for invasive medullary and invasive nonspecific cancers, other invasive carcinomas with a defined subtype were most likely to be diagnosed as luminal B(HER-2-). The age of ≥40 years was a risk factor for luminal B(HER-2+), and a significant correlation was present between the right breast and luminal B(HER-2+). CONCLUSION: We explored the risk factors of breast cancer laterality and various molecular subtypes and found that age may be a predictor of breast cancer laterality. We found that age and laterality are the probable risk factors of the luminal B(HER-2+) type of breast cancer. These results provide a basis for the epidemiological characterization of breast cancer.

Construction of a recombinant eukaryotic expression vector containing DNM3 gene and its expression in colon cancer cells.

INTRODUCTION: Dynamin 3 (DNM3) is a large GTPase that possesses mechanochemical properties and has been shown to be involved in malignancies. However, most studies about DNM3 are observational, and knowledge of the precise molecular mechanism of DNM3 remains limited. MATERIALS AND METHODS: We constructed a PCDH-CMV-MCS-EF1a-GFP-Puro-DNM3 recombinant eukaryotic expression vector, which was then transfected into SW620 and LoVo cells. One cell line was divided into three groups. DNM3 mRNA and protein expression was analyzed by quantitative real-time PCR and Western blot assay. To investigate DNM3 biological activity in colon cancer SW620 and LoVo cell line, we performed cell proliferation, transwell migration, and invasion assay. Matrix metalloproteinase (MMP)-2 and MMP-9 protein expressions were detected by Western blot. RESULT: We successfully constructed a PCDH-CMV-MCS-EF1a-GFP-Puro-DNM3 recombinant eukaryotic expression vector, and stable DNM3 expression was observed in SW620 and LoVo cell lines. The vector overexpressing DNM3 inhibited the proliferation, weak invasion, and migration ability of colon cancer SW620 and LoVo cells relative to those in the control group (all P<0.001). DNM3 downregulated the protein expression of MMP-2 and MMP-9. CONCLUSION: DNM3 may weaken the malignant behavior of colon cancer and may have promoted the invasion and migration of colon cancer by regulating the expression of MMP-2 and MMP-9.

Bilateral thoracic kidneys combined with inferior vena cava located behind the anterior abdominal wall: A case report and review of literature.

Ectopic thoracic kidneys are the rarest form of renal ectopia. Moreover, congenital abnormality of a primary anterior inferior vena cava (IVC) located behind the anterior abdominal wall is extremely rare. To date, only one such case has been reported. Herein, we report a rare case of a 55-year-old Chinese male with bilateral thoracic kidneys combined with an anterior IVC, a malformed liver, and a large-round-folds navel. The classification, clinical characteristics, and management options of a thoracic kidney was also summarized by literature review. To our best knowledge, the simultaneous detection of such multiple complex abnormalities has not been reported.

Positive expression of Y-box binding protein 1 and prognosis in non-small cell lung cancer: a meta-analysis.

BACKGROUND: Y-box binding protein 1 (YB-1) belongs to the cold shock domain protein family involved in transcription and translation. We conducted a meta-analysis of the association between YB-1 expression and the survival and clinicopathological features in NSCLC. METHODS: PubMed and Embase were searched to identify studies that evaluated the YB-1 expression (by immunohistochemistry) and overall survival (OS) in NSCLC. Hazard ratios (HRs) and 95% confidence intervals (CI) of OS were pooled. Odds ratios (ORs) of clinicopathological features were computed. Meta-analysis was performed using STATA 12.0 software. RESULTS: Data on 692 NSCLC patients were collected from six eligible studies. Meta-analysis revealed that YB-1 was associated with worse OS (HR = 1.59, 95% CI [1.27, 2.00], P < 0.001, fixed effect), tumor stage (OR = 0.43, 95% CI [0.22-0.82], P = 0.01, random effect), and depth of invasion (OR = 0.37, 95%CI [0.22-0.63], P < 0.001, fixed effect). A subgroup was analyzed by IHC staining to determine the location of YB-1 positive expression. Poor OS was observed in nucleus staining (pooled HR = 1.86, 95% CI [1.41, 2.45], P < 0.001). However, no statistical significance was observed in combined cytoplasmic and nuclear staining (pooled HR = 1.14, 95% CI [0.76, 1.72], P = 0.536). CONCLUSIONS: Meta-analysis indicated that YB-1 overexpression is correlated with worse OS and clinicopathological features in NSCLC. Subgroup analysis revealed that the nucleus expression of YB-1 may be more closely associated with NSCLC prognosis than cytoplasmic expression.

[Changes and clinical significance of serum soluble Apo-1/Fas in pancreatic cancer].

OBJECTIVE: To detect changes of serum soluble Apo-1/Fas (sApo-1/Fas) in pancreatic cancer patients and to investigate its clinical value in assessing the effect of chemotherapy. METHODS: The serum level of sApo-1/Fas in 30 normal control subjects and 58 pancreatic cancer patients were detected using enzyme-linked immunosorbent assay (ELISA), and the sApo-1/Fas level of 48 pancreatic cancer patients, before and after chemotherapy was compared. RESULTS: Compared with the level of the control group, the level of serum soluble Apo-1/Fas was significantly correlated with clinical stage but not with age, sex or pathologic type of pancreatic cancer. It was elevated gradually from stage II to IV (P < 0.01). However, it would obviously decrease in pancreatic cancer patients after chemotherapy (P < 0.01). CONCLUSION: The serum soluble Apo-1/Fas may be involved in the development of pancreatic cancer, and it may be used as one parameter to assess the disease status and prognosis of pancreatic cancer patient.

Small cell carcinoma of the urinary bladder: A case report and review of the literature.

Small cell carcinoma of the urinary bladder (SCBC) is a type of rare malignant tumor of the urinary tract. As it does not have specific symptoms and its epidemiological features are similar to transitional cell carcinoma of the bladder, it is often misdiagnosed. SCBC is highly aggressive, metastasizes very early and has a poor prognosis, and consequently, it has become a focus for urological surgeons and oncologists. An 82-year-old male visited the Department of Urinary Surgery, in the Affiliated Hospital of Guangdong Medical College (Zhanjiang, China), due to gross hematuria that had persisted for one week. Abdominal computed tomography showed a neoplasm of ~6×6×7 cm on the anterior wall of the bladder. The initial diagnosis was of uroepithelial cell carcinoma of the bladder and surgery was performed to remove the tumor. However, the subsequent pathological examination suggested that the tumor was an SCBC. Small cell carcinoma is a highly malignant disease, with a high mortality rate, and it rarely occurs in the bladder. Upon review of a large number of studies, SCBC was not found to present with specific symptoms, making the early diagnosis of the disease difficult, however, commonly occurring symptoms included dysuria, painless gross hematuria and urinary tract obstruction.

Surgical resection and post-operative radiotherapy in an adult renal neuroblastoma patient with multiple bone and joint metastases: A case report.

Renal neuroblastoma is uncommon, particularly in adults, with only a few cases having been reported in studies published in the English language. The incidence is only 0.12 cases/1 million individuals in those aged >20 years. Studies of the pathogenesis, biological characteristics, treatment and prognosis of renal neuroblastoma are limited due to this low incidence. The present study reports the case of a 22-year-old adult female who was diagnosed with a left renal neuroblastoma by computed tomography (CT), bone scan and pathological examination. The patient underwent a left nephroureterectomy, ipsilateral lymph node dissection and post-operative radiotherapy, prior to discharge 60 days after admittance. At the nine-month follow-up examination, the patient showed no evidence of recurrence, progression or metastatic disease on the CT scans of the chest, abdomen and pelvis. Renal neuroblastoma is extremely uncommon in adults. The diagnosis and treatment of renal neuroblastoma is complicated by the overall low incidence, lack of specific treatment guidelines, advanced disease state due to late presentation, and its associated co-morbidities. Further study of the pathogenesis, biological and clinical characteristics, and treatment of renal neuroblastoma is required to provide an optimal treatment for patients and to improve the patient's quality of life.

Primary Pulmonary Paraganglioma: A Case Report and Review of Literature.

Primary pulmonary paraganglioma is a rare disease. We report a case of a 37-year old female patient with space-occupying lesions in the right lower pulmonary lobe during a routine examination without any symptoms. The patient underwent video-assisted thoracoscopic surgery (VATS) resection of the right middle lobe and dissection of hilar and mediastinal lymph nodes under general anesthesia. She recovered without recrudescence. Preoperative diagnosis is difficult. Accurate diagnosis requires pathological examination, and immunohistochemical test is particularly important. Complete resection is the first treatment option for solitary primary pulmonary paraganglioma; however, VATS is a better technique. Given the high local control rates and few complications of radiotherapy, it is considered as a standard treatment.

Effects of α-enolase (ENO1) over-expression on malignant biological behaviors of AGS cells.

OBJECTIVE: To investigate the effects of α-Enolase (ENO1) over-expression on the proliferative and migratory abilities of AGS cells. METHODS: The target gene was cloned and mounted to the eukaryotic expression vector pcDNA3.1(+), then was transfected into gastric cancer cell lines AGS. mRNA and protein level of ENO1 in AGS cells were verified by real-time quantitative RT-PCR and Western Blot, respectively. The effects of over-expression of ENO1 on proliferative and migratory abilities of AGS cells were detected by the experiments of CCK-8, colony formation and wound healing assays. RESULTS: The eukaryotic expression vector pcDNA3.1(+)/eno1 was successfully constructed, and verified by sequencing. It was shown from the cell proliferation curves that the proliferative ability of AGS-ENO1 transfected group was higher than that of the control group after 72 hours (t = 3.44, P = 0.04), meanwhile, the number of the cell-colonies of the AGS-ENO1 group were significantly greater than that of the control group (t = 5.26, P = 0.01). For the ability of migration, it was significantly enhanced in the over-expression ENO1 cells than in the negative cells (t = 7.35, P < 0.001). CONCLUSION: The over-expression of ENO1 protein can enhance the abilities of proliferation and migration in gastric cancer cells of AGS, which indicates that ENO1 may be an important potential tumor-marker associated with the development of gastric cancer.