-
Je něco špatně v tomto záznamu ?
68Ga-labelled desferrioxamine-B for bacterial infection imaging
M. Petrik, E. Umlaufova, V. Raclavsky, A. Palyzova, V. Havlicek, J. Pfister, C. Mair, Z. Novy, M. Popper, M. Hajduch, C. Decristoforo
Jazyk angličtina Země Německo
Typ dokumentu časopisecké články, práce podpořená grantem
Grantová podpora
19-10907S
Grantová Agentura České Republiky
DRO FNOl 00098892
Ministerstvo Zdravotnictví Ceské Republiky
NV19-03-00069
Ministerstvo Zdravotnictví Ceské Republiky
CZ.02.1.01/0.0/0.0/16_019/0000868
European Regional Development Fund
Medline Complete (EBSCOhost) od 2002-01-01 do Před 1 rokem
Nursing & Allied Health Database (ProQuest) od 2002 do Před 1 rokem
Health & Medicine (ProQuest) od 2002 do Před 1 rokem
Odkazy
PubMed
32734456
DOI
10.1007/s00259-020-04948-y
Knihovny.cz E-zdroje
- MeSH
- deferoxamin * MeSH
- myši MeSH
- PET/CT MeSH
- počítačová rentgenová tomografie MeSH
- pozitronová emisní tomografie MeSH
- radioizotopy galia * MeSH
- Staphylococcus aureus MeSH
- tkáňová distribuce MeSH
- zvířata MeSH
- Check Tag
- myši MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
PURPOSE: With the increase of especially hospital-acquired infections, timely and accurate diagnosis of bacterial infections is crucial for effective patient care. Molecular imaging has the potential for specific and sensitive detection of infections. Siderophores are iron-specific chelators recognized by specific bacterial transporters, representing one of few fundamental differences between bacterial and mammalian cells. Replacing iron by gallium-68 without loss of bioactivity is possible allowing molecular imaging by positron emission tomography (PET). Here, we report on the preclinical evaluation of the clinically used siderophore, desferrioxamine-B (Desferal®, DFO-B), radiolabelled with 68Ga for imaging of bacterial infections. METHODS: In vitro characterization of [68Ga]Ga-DFO-B included partition coefficient, protein binding and stability determination. Specific uptake of [68Ga]Ga-DFO-B was tested in vitro in different microbial cultures. In vivo biodistribution was studied in healthy mice and dosimetric estimation for human setting performed. PET/CT imaging was carried out in animal infection models, representing the most common pathogens. RESULTS: DFO-B was labelled with 68Ga with high radiochemical purity and displayed hydrophilic properties, low protein binding and high stability in human serum and PBS. The high in vitro uptake of [68Ga]Ga-DFO-B in selected strains of Pseudomonas aeruginosa, Staphylococcus aureus and Streptococcus agalactiae could be blocked with an excess of iron-DFO-B. [68Ga]Ga-DFO-B showed rapid renal excretion and minimal retention in blood and other organs in healthy mice. Estimated human absorbed dose was 0.02 mSv/MBq. PET/CT images of animal infection models displayed high and specific accumulation of [68Ga]Ga-DFO-B in both P. aeruginosa and S. aureus infections with excellent image contrast. No uptake was found in sterile inflammation, heat-inactivated P. aeruginosa or S. aureus and Escherichia coli lacking DFO-B transporters. CONCLUSION: DFO-B can be easily radiolabelled with 68Ga and displayed suitable in vitro characteristics and excellent pharmacokinetics in mice. The high and specific uptake of [68Ga]Ga-DFO-B by P. aeruginosa and S. aureus was confirmed both in vitro and in vivo, proving the potential of [68Ga]Ga-DFO-B for specific imaging of bacterial infections. As DFO-B is used in clinic for many years and the estimated radiation dose is lower than for other 68Ga-labelled radiopharmaceuticals, we believe that [68Ga]Ga-DFO-B has a great potential for clinical translation.
Department of Analytical Chemistry Faculty of Science Palacky University Olomouc Czech Republic
Department of Nuclear Medicine Medical University Innsbruck Anichstrasse 5 A 6020 Innsbruck Austria
Institute of Microbiology of the Czech Academy of Sciences v v i Prague Czech Republic
- 000
- 00000naa a2200000 a 4500
- 001
- bmc21019318
- 003
- CZ-PrNML
- 005
- 20210830100903.0
- 007
- ta
- 008
- 210728s2021 gw f 000 0|eng||
- 009
- AR
- 024 7_
- $a 10.1007/s00259-020-04948-y $2 doi
- 035 __
- $a (PubMed)32734456
- 040 __
- $a ABA008 $b cze $d ABA008 $e AACR2
- 041 0_
- $a eng
- 044 __
- $a gw
- 100 1_
- $a Petrik, Milos $u Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, CZ-77900, Olomouc, Czech Republic. milos.petrik@upol.cz
- 245 10
- $a 68Ga-labelled desferrioxamine-B for bacterial infection imaging / $c M. Petrik, E. Umlaufova, V. Raclavsky, A. Palyzova, V. Havlicek, J. Pfister, C. Mair, Z. Novy, M. Popper, M. Hajduch, C. Decristoforo
- 520 9_
- $a PURPOSE: With the increase of especially hospital-acquired infections, timely and accurate diagnosis of bacterial infections is crucial for effective patient care. Molecular imaging has the potential for specific and sensitive detection of infections. Siderophores are iron-specific chelators recognized by specific bacterial transporters, representing one of few fundamental differences between bacterial and mammalian cells. Replacing iron by gallium-68 without loss of bioactivity is possible allowing molecular imaging by positron emission tomography (PET). Here, we report on the preclinical evaluation of the clinically used siderophore, desferrioxamine-B (Desferal®, DFO-B), radiolabelled with 68Ga for imaging of bacterial infections. METHODS: In vitro characterization of [68Ga]Ga-DFO-B included partition coefficient, protein binding and stability determination. Specific uptake of [68Ga]Ga-DFO-B was tested in vitro in different microbial cultures. In vivo biodistribution was studied in healthy mice and dosimetric estimation for human setting performed. PET/CT imaging was carried out in animal infection models, representing the most common pathogens. RESULTS: DFO-B was labelled with 68Ga with high radiochemical purity and displayed hydrophilic properties, low protein binding and high stability in human serum and PBS. The high in vitro uptake of [68Ga]Ga-DFO-B in selected strains of Pseudomonas aeruginosa, Staphylococcus aureus and Streptococcus agalactiae could be blocked with an excess of iron-DFO-B. [68Ga]Ga-DFO-B showed rapid renal excretion and minimal retention in blood and other organs in healthy mice. Estimated human absorbed dose was 0.02 mSv/MBq. PET/CT images of animal infection models displayed high and specific accumulation of [68Ga]Ga-DFO-B in both P. aeruginosa and S. aureus infections with excellent image contrast. No uptake was found in sterile inflammation, heat-inactivated P. aeruginosa or S. aureus and Escherichia coli lacking DFO-B transporters. CONCLUSION: DFO-B can be easily radiolabelled with 68Ga and displayed suitable in vitro characteristics and excellent pharmacokinetics in mice. The high and specific uptake of [68Ga]Ga-DFO-B by P. aeruginosa and S. aureus was confirmed both in vitro and in vivo, proving the potential of [68Ga]Ga-DFO-B for specific imaging of bacterial infections. As DFO-B is used in clinic for many years and the estimated radiation dose is lower than for other 68Ga-labelled radiopharmaceuticals, we believe that [68Ga]Ga-DFO-B has a great potential for clinical translation.
- 650 _2
- $a zvířata $7 D000818
- 650 12
- $a deferoxamin $7 D003676
- 650 12
- $a radioizotopy galia $7 D005710
- 650 _2
- $a myši $7 D051379
- 650 _2
- $a PET/CT $7 D000072078
- 650 _2
- $a pozitronová emisní tomografie $7 D049268
- 650 _2
- $a Staphylococcus aureus $7 D013211
- 650 _2
- $a tkáňová distribuce $7 D014018
- 650 _2
- $a počítačová rentgenová tomografie $7 D014057
- 655 _2
- $a časopisecké články $7 D016428
- 655 _2
- $a práce podpořená grantem $7 D013485
- 700 1_
- $a Umlaufova, Eva $u Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, CZ-77900, Olomouc, Czech Republic
- 700 1_
- $a Raclavsky, Vladislav $u Department of Microbiology, Faculty of Medicine and Dentistry, Palacky University and University Hospital, Olomouc, Czech Republic
- 700 1_
- $a Palyzova, Andrea $u Institute of Microbiology of the Czech Academy of Sciences v.v.i., Prague, Czech Republic
- 700 1_
- $a Havlicek, Vladimir $u Institute of Microbiology of the Czech Academy of Sciences v.v.i., Prague, Czech Republic $u Department of Analytical Chemistry, Faculty of Science, Palacky University, Olomouc, Czech Republic
- 700 1_
- $a Pfister, Joachim $u Department of Nuclear Medicine, Medical University Innsbruck, Anichstrasse 5, A-6020, Innsbruck, Austria
- 700 1_
- $a Mair, Christian $u Department of Nuclear Medicine, Medical University Innsbruck, Anichstrasse 5, A-6020, Innsbruck, Austria
- 700 1_
- $a Novy, Zbynek $u Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, CZ-77900, Olomouc, Czech Republic
- 700 1_
- $a Popper, Miroslav $u Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, CZ-77900, Olomouc, Czech Republic
- 700 1_
- $a Hajduch, Marian $u Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, CZ-77900, Olomouc, Czech Republic
- 700 1_
- $a Decristoforo, Clemens $u Department of Nuclear Medicine, Medical University Innsbruck, Anichstrasse 5, A-6020, Innsbruck, Austria. Clemens.Decristoforo@i-med.ac.at
- 773 0_
- $w MED00007222 $t European journal of nuclear medicine and molecular imaging $x 1619-7089 $g Roč. 48, č. 2 (2021), s. 372-382
- 856 41
- $u https://pubmed.ncbi.nlm.nih.gov/32734456 $y Pubmed
- 910 __
- $a ABA008 $b sig $c sign $y p $z 0
- 990 __
- $a 20210728 $b ABA008
- 991 __
- $a 20210830100903 $b ABA008
- 999 __
- $a ok $b bmc $g 1690198 $s 1139764
- BAS __
- $a 3
- BAS __
- $a PreBMC
- BMC __
- $a 2021 $b 48 $c 2 $d 372-382 $e 20200730 $i 1619-7089 $m European journal of nuclear medicine and molecular imaging $n Eur J Nucl Med Mol Imaging $x MED00007222
- GRA __
- $a 19-10907S $p Grantová Agentura České Republiky
- GRA __
- $a DRO FNOl 00098892 $p Ministerstvo Zdravotnictví Ceské Republiky
- GRA __
- $a NV19-03-00069 $p Ministerstvo Zdravotnictví Ceské Republiky
- GRA __
- $a CZ.02.1.01/0.0/0.0/16_019/0000868 $p European Regional Development Fund
- LZP __
- $a Pubmed-20210728