Researchers Use Menarini’s Liquid Biopsy Technology to Find Genetic Alterations in Cancer Cells that May Improve Prognosis and Treatment
Bologna, Italy and Huntingdon Valley, Pa. -- Menarini Silicon Biosystems, the pioneer of liquid biopsy technology, today announced two new studies describing genetic changes in circulating cancer cells that may improve cancer prognosis and help guide treatment. These studies were presented as posters at the June 22-24 virtual annual meeting II of the American Association for Cancer Research (AACR). Menarini’s CELLSEARCH® and DEPArrayTM NxT technologies were used to capture and isolate the circulating tumor cells for analysis. In one study, Massimo Cristofanilli, M.D., F.A.C.P., Associate Director of Translational Research at the Robert H. Lurie Cancer Center of Northwestern University, and colleagues collected blood samples from 239 patients with stage III/IV breast cancer, then isolated and selected more than 200 individual tumor cells from patients with HER2+ cells*. The scientists then sequenced the genetic codes of each of those cells.
Previously, Dr. Cristofanilli had shown that one specific genetic change in circulating tumor cells, the overexpression of a gene called HER2, was associated with more aggressive metastatic cancer and a worse prognosis. The new study revealed additional genetic alterations that occur more frequently in metastatic breast cancer cells, the most important being a genetic variant called the PTPN1 mutation.
“The new findings are exciting because they deepen our understanding of the mechanisms underlying the critical process of cancer metastasis,” said Dr. Cristofanilli. “The genetic alterations we found also could lead to the development of drugs that specifically target the mutations to improve the treatment of this deadly disease.”
In the second study, scientists led by Claudio Forcato, PhD, head of the Bioinformatics Unit at Menarini Silicon Biosystems, captured, isolated, and sequenced circulating cancer cells from three patients with multiple myeloma*. They then looked for a genetic phenomenon called “loss-of-heterozygosity” (LoH), in which one of the two alleles that are normally found at a specific spot in the genetic code is lost. They found such LoH events in the cancer cells from all of the multiple myeloma patients. “Our results suggest that loss-of-heterozygosity may be pervasive in multiple myeloma, and may offer a prognostic and predictive biomarker for the disease,” explained Dr. Forcato.
“These two new studies show how our technologies are advancing the understanding of cancers like metastatic breast cancer and multiple myeloma, and may lead to improved, more personalized treatment options for patients with these diseases,” said Fabio Piazzalunga, President and CEO of Menarini Silicon Biosystems, Inc.
CELLSEARCH** is the first and only clinically validated blood test cleared by the U.S. Food & Drug Administration (FDA) for detecting and counting CTCs to aid physicians in managing patients with metastatic breast, prostate, and colorectal cancers when used in conjunction with other clinical methods of monitoring. The test is also approved by the China Food & Drug Administration for use in monitoring patients with Metastatic Breast Cancer (MBC). The CELLSEARCH System is the most extensively studied CTC technology, with research published in more than 650 peer-reviewed publications.
DEPArray NxT is an image-based digital cell-sorting and isolation platform that enables clinical researchers to conduct molecular analyses on live or fixed cells with single-cell precision.
About Menarini Silicon Biosystems
Menarini Silicon Biosystems offers unique rare cell technologies and solutions that provide clinical researchers with access to unparalleled resolution in the study of cells and their molecular characterization. The company’s CELLSEARCH and DEPArray NxT technologies together provide an end-to-end solution* for enumeration and sorting of rare cells with single-cell precision.
Menarini Silicon Biosystems, based in Bologna, Italy, and Huntingdon Valley, Pa., U.S., is a wholly owned subsidiary of the Menarini Group, a multinational pharmaceutical, biotechnology and diagnostics company headquartered in Florence, Italy, with a turnover of €3.793 billion and over 17,000 employees in 140 countries.
*The CellSearch HER2 marker used in Study 1, the Circulating Multiple Myeloma Cell Kit used in Study 2, and the workflow described, are for research use only. Not for use in diagnostic procedures. The performance characteristics, safety, and effectiveness have not been established and are not cleared or approved by the FDA.
**For more information on the full intended use and limitations of CELLSEARCH system, please refer to the Instructions for Use on http://documents.cellsearchctc.com/.