Leucocyte scintigraphy with 111In-oxine for assessment of cell trafficking after extracorporeal photopheresis.
Identifieur interne : 000C39 ( Main/Exploration ); précédent : 000C38; suivant : 000C40Leucocyte scintigraphy with 111In-oxine for assessment of cell trafficking after extracorporeal photopheresis.
Auteurs : RBID : pubmed:22621185English descriptors
- KwdEn :
- Adult, Aged, Feasibility Studies, Female, Granulocytes (radionuclide imaging), Humans, Indium Radioisotopes (diagnostic use), Lymphocytes (radionuclide imaging), Male, Middle Aged, Organometallic Compounds (diagnostic use), Oxyquinoline (analogs & derivatives), Oxyquinoline (diagnostic use), Photopheresis, Prospective Studies.
- MESH :
- chemical , analogs & derivatives : Oxyquinoline.
- chemical , diagnostic use : Indium Radioisotopes, Organometallic Compounds, Oxyquinoline.
- radionuclide imaging : Granulocytes, Lymphocytes.
- Adult, Aged, Feasibility Studies, Female, Humans, Male, Middle Aged, Photopheresis, Prospective Studies.
Abstract
Extracorporeal photopheresis (ECP) is an established therapy for transplant rejection, graft-versus-host disease (GvHD) after allogeneic stem cell transplantation, cutaneous T-cell lymphoma and systemic autoimmune disorders such as systemic sclerosis. Knowledge regarding the in vivo behaviour of the cells after reinfusion is very limited. The aim of this prospective study was to investigate the path of 8-MOP-/UVA-exposed radiolabelled cells after ECP treatment and reinfusion. In this prospective single-centre study, peripheral blood mononuclear cells (PBMC) and neutrophils of 10 patients undergoing ECP as part of their regular treatment were labelled separately with (111) In-oxine after exposure to 8-MOP/UVA and prior to reinfusion. The fate of the labelled leucocytes was monitored at 10 min, 3.5 and 24 h following reinfusion with whole-body scintigraphy. Comparison of distribution patterns showed that PBMC and neutrophils have different kinetic patterns after intravenous reinjection. The most prominent difference was immediate retention of PBMC but not of neutrophils in the lungs corresponding to a signal three times more intense. After 24 h, more than 80% of both cell populations could be detected in liver and spleen. By means of a novel tool allowing for tracking of 8-MOP-/UVA-exposed leucocytes in ECP, we could show that organ-specific homing of leucocytes after ECP can be visualized in vivo and that migration patterns differ between PBMC and neutrophils. Based on our results, further studies should (i) extend the morphometric studies described here to specific ECP-responsive conditions and (ii) functionally address the interaction of ECP-modified PBMC with pulmonary tissue in experimental models.
DOI: 10.1111/j.1600-0625.2012.01491.x
PubMed: 22621185
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Knowledge regarding the in vivo behaviour of the cells after reinfusion is very limited. The aim of this prospective study was to investigate the path of 8-MOP-/UVA-exposed radiolabelled cells after ECP treatment and reinfusion. In this prospective single-centre study, peripheral blood mononuclear cells (PBMC) and neutrophils of 10 patients undergoing ECP as part of their regular treatment were labelled separately with (111) In-oxine after exposure to 8-MOP/UVA and prior to reinfusion. The fate of the labelled leucocytes was monitored at 10 min, 3.5 and 24 h following reinfusion with whole-body scintigraphy. Comparison of distribution patterns showed that PBMC and neutrophils have different kinetic patterns after intravenous reinjection. The most prominent difference was immediate retention of PBMC but not of neutrophils in the lungs corresponding to a signal three times more intense. After 24 h, more than 80% of both cell populations could be detected in liver and spleen. By means of a novel tool allowing for tracking of 8-MOP-/UVA-exposed leucocytes in ECP, we could show that organ-specific homing of leucocytes after ECP can be visualized in vivo and that migration patterns differ between PBMC and neutrophils. Based on our results, further studies should (i) extend the morphometric studies described here to specific ECP-responsive conditions and (ii) functionally address the interaction of ECP-modified PBMC with pulmonary tissue in experimental models.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">22621185</PMID><DateCreated><Year>2012</Year><Month>05</Month><Day>24</Day></DateCreated><DateCompleted><Year>2012</Year><Month>09</Month><Day>28</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1600-0625</ISSN><JournalIssue CitedMedium="Internet"><Volume>21</Volume><Issue>6</Issue><PubDate><Year>2012</Year><Month>Jun</Month></PubDate></JournalIssue><Title>Experimental dermatology</Title><ISOAbbreviation>Exp. Dermatol.</ISOAbbreviation></Journal><ArticleTitle>Leucocyte scintigraphy with 111In-oxine for assessment of cell trafficking after extracorporeal photopheresis.</ArticleTitle><Pagination><MedlinePgn>443-7</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1600-0625.2012.01491.x</ELocationID><Abstract><AbstractText>Extracorporeal photopheresis (ECP) is an established therapy for transplant rejection, graft-versus-host disease (GvHD) after allogeneic stem cell transplantation, cutaneous T-cell lymphoma and systemic autoimmune disorders such as systemic sclerosis. Knowledge regarding the in vivo behaviour of the cells after reinfusion is very limited. The aim of this prospective study was to investigate the path of 8-MOP-/UVA-exposed radiolabelled cells after ECP treatment and reinfusion. In this prospective single-centre study, peripheral blood mononuclear cells (PBMC) and neutrophils of 10 patients undergoing ECP as part of their regular treatment were labelled separately with (111) In-oxine after exposure to 8-MOP/UVA and prior to reinfusion. The fate of the labelled leucocytes was monitored at 10 min, 3.5 and 24 h following reinfusion with whole-body scintigraphy. Comparison of distribution patterns showed that PBMC and neutrophils have different kinetic patterns after intravenous reinjection. The most prominent difference was immediate retention of PBMC but not of neutrophils in the lungs corresponding to a signal three times more intense. After 24 h, more than 80% of both cell populations could be detected in liver and spleen. By means of a novel tool allowing for tracking of 8-MOP-/UVA-exposed leucocytes in ECP, we could show that organ-specific homing of leucocytes after ECP can be visualized in vivo and that migration patterns differ between PBMC and neutrophils. Based on our results, further studies should (i) extend the morphometric studies described here to specific ECP-responsive conditions and (ii) functionally address the interaction of ECP-modified PBMC with pulmonary tissue in experimental models.</AbstractText><CopyrightInformation>© 2012 John Wiley & Sons A/S.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Just</LastName><ForeName>Ulrike</ForeName><Initials>U</Initials><Affiliation>Department of Dermatology, University of Vienna, Vienna, Austria. ulrike.just@meduniwien.ac.at</Affiliation></Author><Author ValidYN="Y"><LastName>Dimou</LastName><ForeName>Elke</ForeName><Initials>E</Initials></Author><Author ValidYN="Y"><LastName>Knobler</LastName><ForeName>Robert</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>Klosner</LastName><ForeName>Gabriele</ForeName><Initials>G</Initials></Author><Author ValidYN="Y"><LastName>Ivancic-Brandenberger</LastName><ForeName>Erika</ForeName><Initials>E</Initials></Author><Author ValidYN="Y"><LastName>Greinix</LastName><ForeName>Hildegard</ForeName><Initials>H</Initials></Author><Author ValidYN="Y"><LastName>Becherer</LastName><ForeName>Alexander</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Trautinger</LastName><ForeName>Franz</ForeName><Initials>F</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Clinical Trial</PublicationType><PublicationType>Journal Article</PublicationType><PublicationType>Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Denmark</Country><MedlineTA>Exp Dermatol</MedlineTA><NlmUniqueID>9301549</NlmUniqueID><ISSNLinking>0906-6705</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Indium Radioisotopes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Organometallic Compounds</NameOfSubstance></Chemical><Chemical><RegistryNumber>14514-42-2</RegistryNumber><NameOfSubstance>indium oxine</NameOfSubstance></Chemical><Chemical><RegistryNumber>5UTX5635HP</RegistryNumber><NameOfSubstance>Oxyquinoline</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Feasibility Studies</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Granulocytes</DescriptorName><QualifierName MajorTopicYN="Y">radionuclide imaging</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Indium Radioisotopes</DescriptorName><QualifierName MajorTopicYN="Y">diagnostic use</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Lymphocytes</DescriptorName><QualifierName MajorTopicYN="Y">radionuclide imaging</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Middle Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Organometallic Compounds</DescriptorName><QualifierName MajorTopicYN="Y">diagnostic use</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Oxyquinoline</DescriptorName><QualifierName MajorTopicYN="Y">analogs & derivatives</QualifierName><QualifierName MajorTopicYN="N">diagnostic use</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y">Photopheresis</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Prospective Studies</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2012</Year><Month>5</Month><Day>25</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>5</Month><Day>25</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2012</Year><Month>9</Month><Day>29</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1111/j.1600-0625.2012.01491.x</ArticleId><ArticleId IdType="pubmed">22621185</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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