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Lica JJ, Wieczór M, Grabe GJ, Heldt M, Jancz M, Misiak M, Gucwa K, Brankiewicz W, Maciejewska N, Stupak A, Bagiński M, Rolka K, Hellmann A, Składanowski A. Effective Drug Concentration and Selectivity Depends on Fraction of Primitive Cells. Int J Mol Sci 2021; 22:ijms22094931. [PMID: 34066491 PMCID: PMC8125035 DOI: 10.3390/ijms22094931] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/15/2021] [Accepted: 04/23/2021] [Indexed: 12/25/2022] Open
Abstract
Poor efficiency of chemotherapeutics in the eradication of Cancer Stem Cells (CSCs) has been driving the search for more active and specific compounds. In this work, we show how cell density-dependent stage culture profiles can be used in drug development workflows to achieve more robust drug activity (IC50 and EC50) results. Using flow cytometry and light microscopy, we characterized the cytological stage profiles of the HL-60-, A-549-, and HEK-293-derived sublines with a focus on their primitive cell content. We then used a range of cytotoxic substances—C-123, bortezomib, idarubicin, C-1305, doxorubicin, DMSO, and ethanol—to highlight typical density-related issues accompanying drug activity determination. We also showed that drug EC50 and selectivity indices normalized to primitive cell content are more accurate activity measurements. We tested our approach by calculating the corrected selectivity index of a novel chemotherapeutic candidate, C-123. Overall, our study highlights the usefulness of accounting for primitive cell fractions in the assessment of drug efficiency.
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Affiliation(s)
- Jan Jakub Lica
- Department of Molecular Biochemistry, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland; (K.G.); (K.R.)
- Correspondence:
| | - Miłosz Wieczór
- Department of Physical Chemistry, Faculty of Chemistry, Gdansk University of Technology, 80-233 Gdansk, Poland;
| | - Grzegorz Jan Grabe
- Department of Microbiology, Harvard Medical School, 4 Blackfan Circle, Boston, MA 02115, USA;
| | - Mateusz Heldt
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdansk University of Technology, 80-233 Gdansk, Poland; (M.H.); (M.J.); (M.M.); (W.B.); (N.M.); (M.B.); (A.S.)
| | - Marta Jancz
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdansk University of Technology, 80-233 Gdansk, Poland; (M.H.); (M.J.); (M.M.); (W.B.); (N.M.); (M.B.); (A.S.)
| | - Majus Misiak
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdansk University of Technology, 80-233 Gdansk, Poland; (M.H.); (M.J.); (M.M.); (W.B.); (N.M.); (M.B.); (A.S.)
| | - Katarzyna Gucwa
- Department of Molecular Biochemistry, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland; (K.G.); (K.R.)
| | - Wioletta Brankiewicz
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdansk University of Technology, 80-233 Gdansk, Poland; (M.H.); (M.J.); (M.M.); (W.B.); (N.M.); (M.B.); (A.S.)
| | - Natalia Maciejewska
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdansk University of Technology, 80-233 Gdansk, Poland; (M.H.); (M.J.); (M.M.); (W.B.); (N.M.); (M.B.); (A.S.)
| | - Anna Stupak
- Polpharma Biologics S.A., Gdansk Science & Technology Park, Building A, 80-172 Gdansk, Poland;
| | - Maciej Bagiński
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdansk University of Technology, 80-233 Gdansk, Poland; (M.H.); (M.J.); (M.M.); (W.B.); (N.M.); (M.B.); (A.S.)
| | - Krzysztof Rolka
- Department of Molecular Biochemistry, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland; (K.G.); (K.R.)
| | - Andrzej Hellmann
- Department of Hematology and Transplantology, Medical University of Gdansk, 80-214 Gdansk, Poland;
| | - Andrzej Składanowski
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdansk University of Technology, 80-233 Gdansk, Poland; (M.H.); (M.J.); (M.M.); (W.B.); (N.M.); (M.B.); (A.S.)
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