Mass Cytometry Applications for Cancer Research Pub Note PN 13–02_150505 Contents Cell cycle analysis of the human hematopoietic system by mass cytometry 4 Mapping phenotypic heterogeneity and progression of cancer cells by mass cytometry 5 High-resolution profiling of the baseline diversity in human NK cells 6 Bibliography 8 2 Mass Cytometry Applications for Cancer Research The CyTOF® Mass Cytometer uniquely isolates signal from over 30 probes into single channels with minimal signal overlap, thereby enabling system-wide singlecell proteomic studies. Typical probes used are target-specific antibodies conjugated to rare earth metals and targets studied include cell surface markers, cytokines, signaling proteins and nucleic acids. This document highlights applications uniquely enabled by mass cytometry in cancer research. More information is available on the Fluidigm website: www.fluidigm.com Mass Cytometry Applications for Cancer Research 3 Cell cycle analysis of the human hematopoietic system by mass cytometry Reference: Behbehani, G.K., et.al. Cytometry A 81:552-566. Uniquely CyTOF Simultaneous analysis of 36 parameters per sample in human bone marrow including: 25 cell surface markers 8 intracellular functional markers Proliferation, DNA content and viability Measurement of cell cycle distribution for 34 bone marrow subsets in a single sample Mass cytometric analysis of cell cycle distribution in human bone marrow erythroid cells. Healthy human bone marrow pulsed with 2-iodo-5-deoxyuridine (IdU) was analyzed using SPADE, an algorithm that clusters cell populations into a minimum spanning tree according to phenotypic similarities revealed through usage of 25 cell surface markers. Node color is scaled to the median expression intensity of CD45 (left) or the indicated markers used to identify erythroid subsets (right). The erythroid branch of the bone marrow is indicated by the large rectangle, with subsets shown in the four smaller rectangles. Cluster distribution in the G1, S, or G2 cell cycle phases is shown by red circles sized according to relative cellular frequency. Focusing on the erythroid lineage, G1 and S cells were confined to the erythroblast stage. 4 Mass Cytometry Applications for Cancer Research Simultaneous analysis of 25 cell surface molecules, 8 proteins designating G- and M-phases and IdU identifying S-phase cells, enabled system-wide mapping of cell cycle states across hematopoietic differentiation. The information-rich data provided by mass cytometry paves the way for in-depth investigation of therapeutic responses at the cell cycle level. Mapping phenotypic heterogeneity and progression of cancer cells by mass cytometry Reference: Amir el, A.D., et.al. Nature biotechnology 31:545-552. Uniquely CyTOF Simultaneous analysis of 33 parameters per sample in healthy and leukemic human bone marrow including 31 cell surface markers DNA content and viability In-depth phenotyping and visualization of cancer cell progression from diagnosis to relapse Phenotypic progression of acute myeloid leukemia (AML) cancer cells before chemotherapy and after disease relapse. Two bone marrow samples from an AML patient, one collected at diagnosis before chemotherapy, the other collected at disease relapse, were stained for 31 cell-surface markers then analyzed on a CyTOF mass cytometer. Data sets were merged and subjected to a nonlinear unsupervised dimensionality reduction algorithm (viSNE) to collapse high dimensional single-cell information into a two-dimensional map. The resulting contour maps (left) highlight cellular portions contributed by the ‘diagnosis’ sample in purple (upper left) and by the ‘relapse’ sample in red (lower left). Pseudocolored single-cell maps (right) were used to depict mean expression intensities for the indicated phenotypic markers. The viSNE map reveals pervasive cellular Flt3 expression unique to the diagnosis sample prior to chemotherapy, and emerging abnormal immature CD34+ populations displaying hallmarks of lineagecommitted cells at disease relapse. Mass Cytometry Applications for Cancer Research 5 CyTOF mass cytometry analysis provided detailed characterization of cancer cell progression from diagnosis to disease relapse on a cell by cell basis. Early and accurate detection of phenotypically aberrant populations is paramount to prognosis and correctly assigning treatment decisions. Combining high resolution examination of cellular heterogeneity and detection of minimal residual disease, mass cytometry emerges as a powerful method for cancer research. High-resolution profiling of the baseline diversity in human NK cells Reference: Horowitz, A., et al. SciTransl Med 5, 208ra145. Uniquely CyTOF Simultaneous measurement of 38 parameters per cell in blood samples from monozygotic twins and unrelated human donors including: 28 NK cell receptors 8 cell surface phenotyping markers DNA content and cell viability Use of mass cytometry to reveal a baseline repertoire of over 100,000 phenotypically distinct NK cells shaped by genetic and environmental determinants in humans High-dimensional mass cytometry profiling of the NK cell repertoire uncovers a unique diversity of inhibitory and activating receptor expression patterns. 6 Mass Cytometry Applications for Cancer Research Peripheral blood NK cells from monozygotic twins 5a and 5b (Fig. A) or two healthy unrelated individuals 003 and 007 (Fig. B) were analyzed by SPADE through clustering NK cell subsets into a minimum spanning tree according to the expression of 28 cell surface receptors. Node color is scaled to the median expression intensity of the activating NKG2D and KIR2SD4 receptors, or the inhibitory NKG2A and KIR2DL1 receptors. Nodes are sized according to the relative cell abundance within the entire population of NK cells. High-resolution phenotyping by mass cytometry uncovered a remarkable breadth and diversity in human NK cells with over 100,000 phenotypically distinguishable subsets. By interrogating the diversity of this repertoire in unrelated healthy individuals and monozygotic twins, inhibitory functions of NK cells were found to be tightly regulated by host genetics. In striking contrast, the expression and the combinatorial arrangement of activating receptors is shaped by environmental cues, thereby ensuring a highly diverse repertoire of NK cells in the face of infectious challenges and cancer. Mass Cytometry Applications for Cancer Research 7 Bibliography Han, L., et al. Single-cell mass cytometry reveals intracellular survival/proliferative signaling in FLT3-ITD-mutated AML stem/progenitor cells. Cytometry A 2015. Hansmann, L., et al. Mass cytometry analysis shows that a novel memory phenotype B cell is expanded in multiple myeloma. Cancer Immunol Res 2015. Chang, Q., et al. Single-cell measurement of the uptake, intratumoral distribution and cell cycle effects of cisplatin using mass cytometry. Int J Cancer 136 (5): 12021209, 2014. Di Palma, S., et al. Unraveling cell populations in tumors by single-cell mass cytometry. Curr Opin Biotechnol 2014. Fienberg, H.G., et al. Mass Cytometry to Decipher the Mechanism of Nongenetic Drug Resistance in Cancer. Curr Top Microbiol Immunol 2014. Giesen, C., et al. Highly multiplexed imaging of tumor tissues with subcellular resolution by mass cytometry. Nat Methods 2014. Sachs, Z., et al. NRASG12V oncogene facilitates self-renewal in a murine model of acute myelogenous leukemia. Blood 2014. Strauss-Albee, D.M., et al. Coordinated Regulation of NK Receptor Expression in the Maturing Human Immune System. J Immunol 2014. Amir el, A.D., et al. viSNE enables visualization of high dimensional single-cell data and reveals phenotypic heterogeneity of leukemia. Nat Biotechnol 31 (6): 545-552, 2013. Horowitz, A., et al. Genetic and environmental determinants of human NK cell diversity revealed by mass cytometry. SciTransl Med 5 (208): 208ra145, 2013. Tanner, S.D., et al. An introduction to mass cytometry: fundamentals and applications. Cancer Immunol Immunother 62 (5): 955-965, 2013. Behbehani, G.K., et al. Single-cell mass cytometry adapted to measurements of the cell cycle. Cytometry A 81 (7): 552-566, 2012. Ornatsky, O.I., et al. Study of cell antigens and intracellular DNA by identification of element-containing labels and metallointercalators using inductively coupled plasma mass spectrometry. Anal Chem 80 (7): 2539-2547, 2008. 8 Mass Cytometry Applications for Cancer Research For technical support visit fluidigm.com/support
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