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Articles 1 - 5 of 5
Full-Text Articles in Cell and Developmental Biology
Rho Gtpases: Big Players In Breast Cancer Initiation, Metastasis And Therapeutic Responses, Brock Humphries, Zhishan Wang, Chengfeng Yang
Rho Gtpases: Big Players In Breast Cancer Initiation, Metastasis And Therapeutic Responses, Brock Humphries, Zhishan Wang, Chengfeng Yang
Toxicology and Cancer Biology Faculty Publications
Rho GTPases, a family of the Ras GTPase superfamily, are key regulators of the actin cytoskeleton. They were originally thought to primarily affect cell migration and invasion; however, recent advances in our understanding of the biology and function of Rho GTPases have demonstrated their diverse roles within the cell, including membrane trafficking, gene transcription, migration, invasion, adhesion, survival and growth. As these processes are critically involved in cancer initiation, metastasis and therapeutic responses, it is not surprising that studies have demonstrated important roles of Rho GTPases in cancer. Although the majority of data indicates an oncogenic role of Rho GTPases, …
Elucidating Mechanisms Of Metastasis With Implantable Biomaterial Niches, Ryan Adam Carpenter
Elucidating Mechanisms Of Metastasis With Implantable Biomaterial Niches, Ryan Adam Carpenter
Doctoral Dissertations
Metastasis is the leading cause of cancer related deaths, yet it remains the most poorly understood aspect of tumor biology. This can be attributed to the lack of relevant experimental models that can recapitulate the complex and lengthy progression of metastatic relapse observed in patients. Mouse models have been widely used to study cancer, however they are critically limited to study metastasis. Most models generate aggressive metastases in the lung without the use of unique cell lines or specialized injection techniques. This limits the ability to study disseminated tumor cells (DTCs) in other relevant metastasis prone tissues. Prolonged observation of …
Breast Cancer Sub-Clones That Metastasize To Lung And Bone Exhibit Different Metabolic Preferences, Mollie Merrell
Breast Cancer Sub-Clones That Metastasize To Lung And Bone Exhibit Different Metabolic Preferences, Mollie Merrell
Honors Theses
Metastasis is responsible for the majority of cancer related deaths. In breast cancer the lungs and bones are the major sites for metastasis. Previous studies used the metastatic aggressive MDA-MB-231 breast cancer line to isolate sub-clones that preferentially invade the lungs (LM line) or bones (BoM line). While genes associated with the tissue specific metastasis have been identified, it is unknown if metabolic adaptations contribute to the growth of the LM and BoM lines in their respective organs. The goal of this study was to test the hypothesis that the LM and BoM lines exhibit differences in glucose and glutamine …
Perplexing Role Of P-Glycoprotein In Tumor Microenvironment, Kianna Robinson, Venkataswarup Tiriveedhi
Perplexing Role Of P-Glycoprotein In Tumor Microenvironment, Kianna Robinson, Venkataswarup Tiriveedhi
Biology Faculty Research
Development of multidrug resistance (MDR) still remains a major obstacle to the long-term success of cancer therapy. P-glycoprotein (P-gp) is a well-identified membrane transporter with capability to efflux drug molecules out of the cancer cell leading to reduced efficiency of chemotherapy. Cancer cells upregulate P-gp expression as an adaptive response to evade chemotherapy mediated cell death. While several P-gp inhibitors have been discovered by in silico and pre-clinical studies, very few have successfully passed all phases of the clinical trials. Studies show that application of P-gp inhibitors in cancer therapy regimen following development of MDR achieved limited beneficial outcomes. While, …
Molecular Mechanisms Underlying Migratory And Immune-Evasion Properties Of Circulating Tumor Cells, Jeannette A. Huaman
Molecular Mechanisms Underlying Migratory And Immune-Evasion Properties Of Circulating Tumor Cells, Jeannette A. Huaman
Dissertations, Theses, and Capstone Projects
Metastasis is the leading cause of cancer deaths worldwide. However, there exist only limited treatment options and they are often ineffective. An important aspect of metastasis that requires study, but has previously been understudied is circulating tumor cells (CTCs). CTCs are a critical step in the metastatic cascade. They can be analyzed for the identification of key mechanisms in metastasis. To this end, we isolated CTCs from a syngeneic mouse model of hepatocellular carcinoma (HCC) and a human xenograft mouse model of castration-resistant prostate cancer (CRPC). From these mouse models, primary tumor and CTC lines were established. Functional characterization of …