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Showing 3 results for Metastasis
Assesment of angiogenesis in basal cell carcinoma using CD31 & CD34 markers and relation with tumor invasiveness in histology
Zahra Safaei Naraghi, Mahdi Hadisi, Firouz Amani, Soulmaz Fathi,
Volume 1, Issue 3 (9-2010)
Abstract

Background and Aim: Tumor angiogenesis is essential for tumor growth and appears to play an importating role both in invasive growth and metastasis. Basal cell carcinomas (BCCs) and squamous cell carcinomas (SCCs) of the skin are derived from a similar cell type but differ in the invasive and metastatic potential. Basal cell carcinoma generally shows a relatively benign course in contrast to squamous cell carcinoma .This study investigates whether the behavior of these tumors could be explained by differences in their angiogenesis pattern.
Methods: Vessel counts were made of blood vessels in stroma and the body of 50 variants of BCC of skin samples including: nodular, micronodular, sclerosing and superficial, both after H&E and immunohistochemical staining for CD31 and CD34 markers.
Results: The body vessel counts of invasive variants (sclerosing & micronodular) differed significantly from the counts of noninvasive variants (nodular and superficial) using both CD31 & CD34 markers. The stromal vessel counts compared between invasive and noninvasive variants showed no significantly difference using CD31 & CD34 markers, respectively.
Conclusion: The invasive growth pattern of BCC variants correlated with the microvascular density and according to results, vessel counts of the body play a more important role.


Mechanisms of developement and metastasis of malignant melanoma
Ali Sadeghi Urmia, Babak Barati, Javid Taghinejad,
Volume 9, Issue 2 (7-2018)
Abstract
Cancer is a genetic condition. Some cancers are inherited, but most are caused by mutations in somatic cells. The cause of these mutations is inherent error in the transcription of DNA or exposure to carcinogens. Malignant melanoma is the most serious type of skin cancer which develops from pigment-containing cells known as melanocytes. The most potent risk factors for melanoma is the presence of multiple benign moles or abnormal spots, and family history of melanoma. Metastasis is a complex multi-stage process that results in development of secondary malignant growths and the spread of cancer cells to other areas of the body leading to patient’s death. Melanoma metastases are mainly to the lymph nodes, liver, lungs, and central nervous system. The aim of this article is to review the mechanisms of development and metastasis of melanoma by searching database such as SID, Google Scholar, American Electronic Library,Springer and PubMed.
Identification of key genes in melanoma metastasis and investigating their potential as biomarkers
Pegah Abbasi, Maryam Peymani, Dariush Farhud, Hamidreza Mahmoudi, Kamran Ghaedi,
Volume 13, Issue 2 (8-2022)
Abstract
Background and Aim: Considering the high global incidence of skin cancer and the high mortality rate caused by melanoma, it is important to identify the genes involved in this disease and predict effective drugs. Therefore, in this study, we have identified and investigated the expression level of effective and key genes in melanoma metastasis, as well as investigating their diagnostic potential as biological markers and finding effective drugs on the expression of these genes.
 
Methods: In this study, we have used 46 cancer samples without metastasis and 12 cancer samples with metastasis from the GEO database and from the GSE15605 study with 74 samples including 16 normal samples. Gene expression profile in this study was generated by GPL570 platform containing 54675 probes. The latest GPL570 annotation file has been downloaded and initial processing was done.
 
Results: The results showed that the expression level of candidate genes in metastasis samples had a significant change compared to normal samples. The results of analysing the data related to candidate genes in this study indicated that the drugs Glucosamine, Ad-E2F-1 plus Doxorubicn, GSI, Torcetrapib, Ribavirin and NSC319726 could be effective on the expression of MYH10, SPRR3 and TOP2A genes, respectively. On the other hand, the results from the drug bank database revealed that various drugs such as Amsacrine, Dexrazoxane, Valrubicin, Teniposide can have an inhibitory role on the TOP2A gene.
 
Conclusion: GEO database was used to identify key genes in melanoma metastasis and DRUGBANK was used to identify drugs that affect the expression of these genes.

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