scholarly journals Anticancer effects of the engineered stem cells transduced with therapeutic genes via a selective tumor tropism caused by vascular endothelial growth factor toward HeLa cervical cancer cells

2013 ◽  
Vol 36 (4) ◽  
pp. 347-354 ◽  
Author(s):  
Hye-Sun Kim ◽  
Bo-Rim Yi ◽  
Kyung-A Hwang ◽  
Seung U. Kim ◽  
Kyung-Chul Choi
Keyword(s):  
Cervical Cancer ◽  
Stem Cells ◽  
Vascular Endothelial Growth Factor ◽  
Growth Factor ◽  
Cancer Cells ◽  
Vascular Endothelial ◽  
Anticancer Effects ◽  
Tumor Tropism ◽  
Cervical Cancer Cells ◽  
Endothelial Growth Factor

Vascular Endothelial Growth Factor (VEGF-C) Protein Expression Related with Lymphangiogensis in Iraqi Cervical Cancer Patients

2019 ◽  
pp. 27-40
Keyword(s):  
Cervical Cancer ◽  
Vascular Endothelial Growth Factor ◽  
Growth Factor ◽  
Cancer Cells ◽  
P Value ◽  
Vascular Endothelial ◽  
Chi Square ◽  
C Protein ◽  
Cervical Cancer Cells ◽  
Endothelial Growth Factor

Objective: Metastatic spread of tumor cells to distant organs is the leading cause of mortality from cancer. Although metastatic tumor spread can occur via a different mechanism. lymphangiogenic factors recognized were vascular endothelial growth factor (VEGF)–C and –D, which bind to a tyrosine kinase receptor, VEGF receptor (R)–3. Binding affinities to VEGFR-2 receptor increase on the lymphatic and blood endothelium therefore enables both growth factors to also exert lymphangiogenic and angiogenic effects and increased incidence of lymph node metastasis. The aim of this study is to evaluate the VEGF-C protein expression in cervical cancer cells and lymph vessels and found the relationship of this marker with lymphangiogensis of Iraqi cervical cancer samples. Method: In this study, expression of VEGF-C was noticed in 55 cervical samples by Immuno- histochemistry. 35 cases diagnosed as invasive cervical cancer in addition to 20 normal samples consider as control. Immunohistochemistry was performed and the cytoplasm level of VEGF-C was scored by the percentage of positive cells and intensity. Results: The present data evaluated the prognostic significance of VEGF-C to cervical cancer, cytoplasm staining was seen in 29 cases (82.9 %) in cervical cancer tissues. Only 4 out of 35 cases (11.4 %) displayed cytoplasmic and nuclear tissue. There is significant difference of VEGF-C staining in lymphatic vessels and cancer cells (χ2= 5.04, p = 0.023*) regarding to positive expression (20/ 57.1%), (25/ 71.4 %) respectively and negative VEGF-C staining 15 (42.9%), 10 (28.6 %) respectively. High positive percentage of VEGF-C expression in cytoplasm of malignant cases in score 2& 3 (25.7%, 45.7 %, P-value= 0.0392 *, 0.029* respectively) as compared to normal cases (15%, 30% respectively). Demographic criteria of patients revealed association with VEGF-C expression patterns. Differentiation Well + moderately and histologic type Squamous carcinoma showed significantly associated with VEGF-C (P=0.0071** & 0.0071** respectively). Positive VEGF-C staining in cancer cells had more lymphatic vessel (17/68 %) as compared to negative cases (3/30 %) with Chi-Square 8.263, p value= 0.0061**. Also, positive VEGF-C staining had more lymph node associated (9/36%) compared to negative cases (1/10 %) with Chi-Square 13.503, p value= 0.0001**. Conclusion: In conclusion, high expression of vascular endothelial growth factor was noticed in cervical cancer cells and lymph vascular invasion indicating the important role of this marker as prognostic factor for Iraqi cervical cancer. Additionally, these results suggested that VEGF-C promoted cervical cancer metastasis using immunohistochemistry technique. Our findings offer new vision into the role of VEGF-C in cervical cancer development and give potential target for study the lymphangiogensis of tumor in Iraqi women.

scholarly journals Brain Tumor Tropism of Transplanted Human Neural Stem Cells Is Induced by Vascular Endothelial Growth Factor

Neoplasia ◽  
2005 ◽  
Vol 7 (6) ◽  
pp. 623-630 ◽  
Author(s):  
Nils Ole Schmidt ◽  
Wojciech Przylecki ◽  
Wendy Yang ◽  
Mateo Ziu ◽  
Yang Teng ◽  
...  
Keyword(s):  
Stem Cells ◽  
Vascular Endothelial Growth Factor ◽  
Brain Tumor ◽  
Growth Factor ◽  
Neural Stem Cells ◽  
Vascular Endothelial ◽  
Human Neural Stem Cells ◽  
Tumor Tropism ◽  
Endothelial Growth Factor

A novel approach for the discrimination of culture medium from Vascular Endothelial Growth Factor (VEGF) overexpressing colorectal cancer cells

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Sinem Tunçer ◽  
Rafig Gurbanov
Keyword(s):  
Colorectal Cancer ◽  
Vascular Endothelial Growth Factor ◽  
Growth Factor ◽  
Ftir Spectroscopy ◽  
Cancer Cells ◽  
Lower Amount ◽  
Vascular Endothelial ◽  
Colorectal Cancer Cells ◽  
Endothelial Growth Factor

AbstractObjectivesThe expression level of Vascular Endothelial Growth Factor (VEGF) is assumed as a prognostic marker for several tumor types, including colorectal cancer. Therefore, the determination of pre- and post-therapy levels of VEGF appears to have great value in the assessment of tumor prognosis. Enzyme-Linked Immunosorbent Assay (ELISA) is commonly used for the determination of serum or plasma VEGF levels, but the method is costly and time-consuming. In this study, we aimed to describe a rapid and cost-effective analysis method to discriminate VEGF overexpressing colorectal cancer-derived conditioned medium (CM).MethodsAttenuated Total Reflection (ATR)-Fourier Transform Infrared (FTIR) spectroscopy, combined with Principal Component Analysis (PCA) and Linear Discriminant Analysis (LDA), was used to differentiate VEGF overexpressing colorectal cancer cell line CM from CM obtained from the corresponding control cells which express and secrete relatively lower amount of VEGF.ResultsSamples belong to VEGF overexpressing colorectal cancer cells were clearly distinguished from the control group with very high PC scores as PC1 + PC2 = 96%. Besides, a 100% accurate distinction between these two groups was achieved by the LDA analysis.ConclusionsATR-FTIR spectroscopy combined with pattern recognition techniques was able to discriminate CM of VEGF overexpressing colorectal cancer cells with high efficiency and accuracy.

scholarly journals Porcine ovarian cortex-derived putative stem cells can differentiate into endothelial cells in vitro

2021 ◽  
Author(s):  
Kamil Wartalski ◽  
Gabriela Gorczyca ◽  
Jerzy Wiater ◽  
Zbigniew Tabarowski ◽  
Małgorzata Duda
Keyword(s):  
Stem Cells ◽  
Vascular Endothelial Growth Factor ◽  
Endothelial Cells ◽  
Growth Factor ◽  
Primary Component ◽  
Marker Genes ◽  
Vascular Endothelial ◽  
Ovarian Cortex ◽  
Endothelial Growth Factor

AbstractEndothelial cells (ECs), the primary component of the vasculature, play a crucial role in neovascularization. However, the number of endogenous ECs is inadequate for both experimental purposes and clinical applications. Porcine ovarian putative stem cells (poPSCs), although not pluripotent, are characterized by great plasticity. Therefore, this study aimed to investigate whether poPSCs have the potential to differentiate into cells of endothelial lineage. poPSCs were immunomagnetically isolated from postnatal pig ovaries based on the presence of SSEA-4 protein. Expression of mesenchymal stem cells (MSCs) markers after pre-culture, both at the level of mRNA: ITGB1, THY, and ENG and corresponding protein: CD29, CD90, and CD105 were significantly higher compared to the control ovarian cortex cells. To differentiate poPSCs into ECs, inducing medium containing vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF), insulin-like growth factor (IGF), epidermal growth factor (EGF), ascorbic acid, and heparin was applied. After 14 days, poPSC differentiation into ECs was confirmed by immunofluorescence staining for vascular endothelial cadherin (VECad) and vascular endothelial growth factor receptor-2 (VEGFR-2). Semi-quantitative WB analysis of these proteins confirmed their high abundance. Additionally, qRT-PCR showed that mRNA expression of corresponding marker genes: CDH5, KDR was significantly higher compared with undifferentiated poPSCs. Finally, EC functional status was confirmed by the migration test that revealed that they were capable of positive chemotaxis, while tube formation assay demonstrated their ability to develop capillary networks. In conclusion, our results provided evidence that poPSCs may constitute the MSC population in the ovary and confirmed that they might be a potential source of ECs for tissue engineering.

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