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<a name="x_x_Chapter1" style="font-family: "Times New Roman", serif; font-size: 12pt; color: inherit;"><b><span style="font-size:14.0pt; font-family:"Calibri",sans-serif; color:black">NAME:</span></b></a><span style="font-family: "Times New Roman", serif; font-size: 12pt;"></span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: black;"> </span><span style="font-size: 14pt; font-family: Calibri, sans-serif; color: black;">Mohsen
Fathi</span><br>
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<b><span style="font-size:14.0pt; font-family:"Calibri",sans-serif; color:#201F1E">COMMITTEE CHAIR:</span></b><b><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#201F1E">
</span></b><span style="font-size:14.0pt; font-family:"Calibri",sans-serif; color:#201F1E">Dr. Navin Varadarajan</span></p>
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<b><span style="font-size:14.0pt; font-family:"Calibri",sans-serif; color:#201F1E">DATE:</span></b><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#201F1E"> </span><span style="font-size:14.0pt; font-family:"Calibri",sans-serif">Monday,
November 30, 2020</span></p>
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<b><span style="font-size:14.0pt; font-family:"Calibri",sans-serif; color:#201F1E">TIME</span></b><span style="font-size:14.0pt; font-family:"Calibri",sans-serif; color:#201F1E">:</span><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#201F1E">
</span><span style="font-size:14.0pt; font-family:"Calibri",sans-serif">3:00 PM</span></p>
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<b><span style="font-size:14.0pt; font-family:"Calibri",sans-serif; color:#201F1E">LOCATION:</span></b><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#201F1E"> </span><span style="font-size:14.0pt; font-family:"Calibri",sans-serif">Zoom
Information Below</span></p>
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<b><span style="font-size:14.0pt; font-family:"Calibri",sans-serif; color:#201F1E">TITLE:</span></b><b><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#201F1E"> </span></b><b><span style="font-size:14.0pt; font-family:"Calibri",sans-serif; color:#201F1E">Single-Cell
Screening of Exosome Secretion in Breast Cancer</span></b><b><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#201F1E"></span></b></p>
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<b><span style="font-size:14.0pt">Abstract: </span></b><span style="font-size:14.0pt"></span></p>
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"Exosomes mediate intercellular communication in health and disease. Conventional assays are limited in profiling exosomes secreted from large populations of cells and are unsuitable for studying the functional consequences of individual cells exhibiting varying
propensity for exosome secretion. Here, we developed a high throughput single-cell technique that enabled the mapping of exosome secretion dynamics. By utilizing clinically relevant models of breast cancer, we established that non-metastatic cancer cells secrete
more exosomes than metastatic cancer cells. We established isogenic clonal cell lines from non-metastatic cells with differing propensities for exosome secretion and showed that exosome secretion is an inheritable property preserved during cell division. Combined
in vitro and in vivo studies with these cell lines suggested that exosome secretion can impede tumor formation. In human non-metastatic breast tumors, tumors with the higher secretion of exosomes have a better prognosis compared to tumors with the lower secretion
of exosomes. As another application for our technique and to identify markers relevant to exosome secretion in metastatic cell lines, we profiled the cellular transcriptome of isogenic metastatic cell lines with varied exosome secretion rates established with
our method. The genes identified with the highest expression and correlation in the high secretor clone were significantly associated with poor survival and low CD8 T cell infiltration in breast cancer patients. Our single-cell methodology can become an essential
tool that enables the direct integration of exosome secretion with multiple cellular functions." </p>
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<b>Zoom ID info:</b><span style="color:#005A58"></span></p>
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Time: Nov 30, 2020 03:00 PM Central Time (US and Canada)</p>
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Meeting ID: 943 5232 9911</p>
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