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PÅVERKAR ALUMINIUMADJUVANTER FÖREKOMSTEN AV REAKTIVA SYRERADIKALER I FAGOCYTERANDE CELLER?
2021 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
DO ALUMINJUM ADJUVANTS AFFECT THE PRESENCE OF REACTIVE OXYGEN SPECIES IN PHAGOCYTIC CELLS? (English)
Abstract [sv]

Bland upptäckterna inom medicin är vaccin ett stort bidrag till folkhälsan, och det har en förebyggande roll mot infektionssjukdomar. Vacciner som innehåller delar av mikroorganismer behöver tillsats av adjuvanter för att aktivera immunförsvaret. Aluminiumadjuvanter används ofta i vaccin och dessa gör att fagocyterande celler blir inflammatoriska.Exempel på fagocyterande celler är monocyter som har differentierats till makrofager. Aluminiumadjuvanterna består av mikrometer-stora partiklar som tas upp av cellerna genom fagocytos, och efter fagocytos befinner sig aluminiumadjuvanterna i en fagosom. I fagosomen kommer reaktiva syreradikaler (ROS) att bildas för att underlätta nedbrytningen av fagocyterat material. För att undersöka om förekomst av ROS påverkas på grund av fagocytos av aluminiumadjuvanter studerades cellers innehåll av ROS efter inkubation med aluminiumadjuvanter. Aluminiumadjuvant testades på THP-1 celllinje och THP-1 celllinje som differentierades till makrofager. Förekomst av ROS har undersökts med proberna MitoSox och CellRox och har detekterats med flödescytometri. Små skillnader i cellernas innehåll av ROS erhölls efter inkubation med aluminiumadjuvant. Dock uppvisade proben CellRox mestadels en reduktion av cellernas innehåll av ROS efter inkubation och därmed fagocytos av aluminiumadjuvant.

Abstract [en]

Among the discoveries in medicine, vaccines are a major contribution to public health, and they have a preventive role against infectious diseases. The vaccines that contain parts of microorganisms need the addition of adjuvants to activate the immune system. Aluminum adjuvants are often used in vaccines and these cause phagocytic cells to become inflammatory. Examples of phagocytic cells are monocytes that have been differentiated into macrophages. The aluminum adjuvants consist of micrometer-sized particles that are taken up by the cells through phagocytosis, and after phagocytosis, the aluminum adjuvant is in a phagosome. In the phagosome, reactive oxygen radicals (ROS) will be formed to facilitate the degradation of phagocytic material. To investigate whether the presence of ROS is affected due to phagocytosis by aluminum adjuvants, the content of ROS in cells after incubation with aluminum adjuvants was studied. Aluminum adjuvant was tested on THP-1 cell line and THP-1 cell line which were differentiated into macrophages. The presence of ROS has been examined with the MitoSox and CellRox probes and has been detected by flow cytometry. Small differences of content of ROS in the cells were obtained after incubation with aluminum adjuvant. However, the CellRox probe showed mostly a reduction of the content of ROS in the cells after incubation and thus phagocytosis of aluminum adjuvant.

Place, publisher, year, edition, pages
2021. , p. 19
Keywords [sv]
Aluminiumadjuvant, CellRox, flödescytometri, MitoSox, ROS, THP-1 celler.
National Category
Biomedical Laboratory Science/Technology
Identifiers
URN: urn:nbn:se:mau:diva-43656OAI: oai:DiVA.org:mau-43656DiVA, id: diva2:1567777
Educational program
HS Biomedicinsk laboratorievetenskap
Supervisors
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Available from: 2021-11-11 Created: 2021-06-16 Last updated: 2021-11-11Bibliographically approved

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