1
|
Papadopoulou LC, Ingendoh-Tsakmakidis A, Mpoutoureli CN, Tzikalou LD, Spyridou ED, Gavriilidis GI, Kaiafas GC, Ntaska AT, Vlachaki E, Panayotou G, Samiotaki M, Tsiftsoglou AS. Production and Transduction of a Human Recombinant β-Globin Chain into Proerythroid K-562 Cells To Replace Missing Endogenous β-Globin. Mol Pharm 2018; 15:5665-5677. [PMID: 30375878 DOI: 10.1021/acs.molpharmaceut.8b00857] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Protein replacement therapy (PRT) has been applied to treat severe monogenetic/metabolic disorders characterized by a protein deficiency. In disorders where an intracellular protein is missing, PRT is not easily feasible due to the inability of proteins to cross the cell membrane. Instead, gene therapy has been applied, although still with limited success. β-Thalassemias are severe congenital hemoglobinopathies, characterized by deficiency or reduced production of the adult β-globin chain. The resulting imbalance of α-/β-globin chains of adult hemoglobin (α2β2) leads to precipitation of unpaired α-globin chains and, eventually, to defective erythropoiesis. Since protein transduction domain (PTD) technology has emerged as a promising therapeutic approach, we produced a human recombinant β-globin chain in fusion with the TAT peptide and successfully transduced it into human proerythroid K-562 cells, deficient in mature β-globin chain. Notably, the produced human recombinant β-globin chain without the TAT peptide, used as internal negative control, failed to be transduced into K-562 cells under similar conditions. In silico studies complemented by SDS-PAGE, Western blotting, co-immunoprecipitation and LC-MS/MS analysis indicated that the transduced recombinant fusion TAT-β-globin protein interacts with the endogenous native α-like globins to form hemoglobin α2β2-like tetramers to a limited extent. Our findings provide evidence that recombinant TAT-β-globin is transmissible into proerythroid K-562 cells and can be potentially considered as an alternative protein therapeutic approach for β-thalassemias.
Collapse
Affiliation(s)
- Lefkothea C Papadopoulou
- Laboratory of Pharmacology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki 54124 , Macedonia , Greece
| | - Alexandra Ingendoh-Tsakmakidis
- Laboratory of Pharmacology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki 54124 , Macedonia , Greece
| | - Christina N Mpoutoureli
- Laboratory of Pharmacology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki 54124 , Macedonia , Greece
| | - Lamprini D Tzikalou
- Laboratory of Pharmacology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki 54124 , Macedonia , Greece
| | - Efthymia D Spyridou
- Laboratory of Pharmacology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki 54124 , Macedonia , Greece
| | - George I Gavriilidis
- Laboratory of Pharmacology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki 54124 , Macedonia , Greece
| | - Georgios C Kaiafas
- Laboratory of Pharmacology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki 54124 , Macedonia , Greece
| | - Agoritsa T Ntaska
- Laboratory of Pharmacology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki 54124 , Macedonia , Greece
| | - Efthymia Vlachaki
- Adult Thalassemia Unit , Hippokrateion General Hospital , Thessaloniki 54642 , Greece
| | | | | | - Asterios S Tsiftsoglou
- Laboratory of Pharmacology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki 54124 , Macedonia , Greece
| |
Collapse
|