Abstract
Quantum dots (QDs) are nanometer scale fluorescent semiconductors that are increasingly used as labeling tools in biological research. These nanoparticles have physical properties, such as high quantum yield and resistance to photobleaching, that make them attractive molecular probes for tracking hematologic cells. Here, we show that QDs attached to a transporter protein effectively label all hematologic cells tested, including cell lines and malignant and non-malignant patient samples. We demonstrate that dividing cells can be tracked through at least four cell divisions. In leukemic cell lines, some cells remain labeled for 2 weeks. We show that QDs can be used to follow cells as they differentiate. QDs are seen in monocyte-like and neutrophil-like progeny of labeled HL-60 myeloblasts exposed to Vitamin D analogues and DMSO, respectively. QDs are also observed in monocytes generated from labeled CD34+ cells. In addition, QDs attached to streptavidin can target cells with differing cell surface markers, including CD33. In summary, QDs have the ability to bind to specific cells of interest, be taken up by a diverse range of hematologic cells, and followed through many divisions and through differentiation. These results establish QDs as extremely useful molecular imaging tools for the study of hematologic cells.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 643-651 |
| Number of pages | 9 |
| Journal | Leukemia Research |
| Volume | 31 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2007 |
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Keywords
- Cell tracking
- Fluorescence microscopy
- Hematopoiesis
- Nanotechnology
ASJC Scopus subject areas
- Cancer Research
- Hematology
- Oncology
Cite this
Quantum dot labeling and tracking of human leukemic, bone marrow and cord blood cells. / Garon, Edward B.; Marcu, Laura; Luong, Quang; Tcherniantchouk, Oxana; Crooks, Gay M.; Koeffler, H. Phillip.
In: Leukemia Research, Vol. 31, No. 5, 05.2007, p. 643-651.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Quantum dot labeling and tracking of human leukemic, bone marrow and cord blood cells
AU - Garon, Edward B.
AU - Marcu, Laura
AU - Luong, Quang
AU - Tcherniantchouk, Oxana
AU - Crooks, Gay M.
AU - Koeffler, H. Phillip
PY - 2007/5
Y1 - 2007/5
N2 - Quantum dots (QDs) are nanometer scale fluorescent semiconductors that are increasingly used as labeling tools in biological research. These nanoparticles have physical properties, such as high quantum yield and resistance to photobleaching, that make them attractive molecular probes for tracking hematologic cells. Here, we show that QDs attached to a transporter protein effectively label all hematologic cells tested, including cell lines and malignant and non-malignant patient samples. We demonstrate that dividing cells can be tracked through at least four cell divisions. In leukemic cell lines, some cells remain labeled for 2 weeks. We show that QDs can be used to follow cells as they differentiate. QDs are seen in monocyte-like and neutrophil-like progeny of labeled HL-60 myeloblasts exposed to Vitamin D analogues and DMSO, respectively. QDs are also observed in monocytes generated from labeled CD34+ cells. In addition, QDs attached to streptavidin can target cells with differing cell surface markers, including CD33. In summary, QDs have the ability to bind to specific cells of interest, be taken up by a diverse range of hematologic cells, and followed through many divisions and through differentiation. These results establish QDs as extremely useful molecular imaging tools for the study of hematologic cells.
AB - Quantum dots (QDs) are nanometer scale fluorescent semiconductors that are increasingly used as labeling tools in biological research. These nanoparticles have physical properties, such as high quantum yield and resistance to photobleaching, that make them attractive molecular probes for tracking hematologic cells. Here, we show that QDs attached to a transporter protein effectively label all hematologic cells tested, including cell lines and malignant and non-malignant patient samples. We demonstrate that dividing cells can be tracked through at least four cell divisions. In leukemic cell lines, some cells remain labeled for 2 weeks. We show that QDs can be used to follow cells as they differentiate. QDs are seen in monocyte-like and neutrophil-like progeny of labeled HL-60 myeloblasts exposed to Vitamin D analogues and DMSO, respectively. QDs are also observed in monocytes generated from labeled CD34+ cells. In addition, QDs attached to streptavidin can target cells with differing cell surface markers, including CD33. In summary, QDs have the ability to bind to specific cells of interest, be taken up by a diverse range of hematologic cells, and followed through many divisions and through differentiation. These results establish QDs as extremely useful molecular imaging tools for the study of hematologic cells.
KW - Cell tracking
KW - Fluorescence microscopy
KW - Hematopoiesis
KW - Nanotechnology
UR - http://www.scopus.com/inward/record.url?scp=34147196556&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34147196556&partnerID=8YFLogxK
U2 - 10.1016/j.leukres.2006.08.006
DO - 10.1016/j.leukres.2006.08.006
M3 - Article
C2 - 17027955
AN - SCOPUS:34147196556
VL - 31
SP - 643
EP - 651
JO - Leukemia Research
JF - Leukemia Research
SN - 0145-2126
IS - 5
ER -