Researchers are investigating the use of monoclonal antibodies (mAbs) to treat a newly discovered autoimmune disease called ‘Cytokine Storm Syndrome’ (CSS). In CSS, the body produces excessive amounts of pro-inflammatory cytokines, leading to severe tissue damage. The researchers are exploring two potential mAb-based therapies: one that directly neutralizes the excessive cytokines and another that targets and depletes the specific immune cells producing these cytokines.
b. Contrast the mechanism of action of the cytokine-neutralizing mAb with that of a mAb designed to deplete the immune cells producing the cytokines. Which approach might be more likely to cause long-term immunosuppression, and why?
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Create Free Account Log inThis is a free VCE Units 3 & 4 Biology practice question worth 4 marks, testing your understanding of Immunotherapy developments. It falls under How do organisms respond to pathogens? in Unit 4: How does life change and respond to challenges?. Submit your answer above to receive instant AI-powered marking and personalised feedback.
In this unit students consider the continual change and challenges to which life on Earth has been, and continues to be, subjected. They study the human immune system and the interactions between its components to provide immunity to a specific pathogen. Students consider how the application of biological knowledge can be used to respond to bioethical issues and challenges related to disease. Students consider how evolutionary biology is based on the accumulation of evidence over time. They investigate the impact of various change events on a population’s gene pool and the biological consequences of changes in allele frequencies. Students examine the evidence for relatedness between species and change in life forms over time using evidence from paleontology, structural morphology, molecular homology and comparative genomics. Students examine the evidence for structural trends in the human fossil record, recognising that interpretations can be contested, refined or replaced when challenged by new evidence. Students demonstrate and apply their knowledge of how life changes and responds to challenges through investigation of a selected case study, data analysis and/or bioethical issue. Examples of investigation topics include, but are not limited to: deviant cell behaviour and links to disease; autoimmune diseases; allergic reactions; development of immunotherapy strategies; use and application of bacteriophage therapy; prevention and eradication of disease; vaccinations; bioprospecting for new medical treatments; trends, patterns and evidence for evolutionary relationships; population and species changes over time in non-animal communities such as forests and microbiota; monitoring of gene pools for conservation planning; role of selective breeding programs in conservation of endangered species; or impact of new technologies on the study of evolutionary biology. A student-designed scientific investigation involving the generation of primary data related to cellular processes and/or how life changes and responds to challenges is undertaken in either Unit 3 or Unit 4, or across both Units 3 and 4, and is assessed in this unit, Outcome 3. The design, analysis and findings of the investigation are presented in a scientific poster format as outlined in the study design.
In this area of study students focus on the immune response of organisms to specific pathogens. Students examine unique molecules called antigens and how they illicit an immune response, the nature of immunity and the role of vaccinations in providing immunity. They explain how technological advances assist in managing immune system disorders and how immunotherapies can be applied to the treatment of other diseases. Students consider that in a globally connected world there are biological challenges that can be mediated by identification of pathogens, the prevention of spread and the development of treatments for diseases.
the development of immunotherapy strategies, including the use of monoclonal antibodies for the treatment of autoimmune diseases and cancer
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