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Printable Handouts
Navigable Slide Index
- Introduction
- Talk objectives
- Systemic Lupus Erythematosus (SLE)
- SLE images
- Pathogenesis of inflammation in SLE
- SLE – complement and disease activity
- Difficulties in complement assays
- Complement and disease activity
- Complement activation products: examples
- Complement activation products: do they help?
- The clinical evidence doesn’t quite fit
- Complement deficiency and SLE
- Complement deficiency and SLE (illustration)
- Complement and SLE: paradox
- Complement and lupus pathogenesis
- “Waste disposal” hypothesis
- Mechanisms in C1q regulation of autoimmunity
- C1q binding and dying cells disposal
- C3-dependent clearance of apoptotic cells
- Defective removal of dying cells leads to SLE
- Complement deficiency
- Complement and SLE: just an old story?
- Complement and SLE: ITGAM
- CD11b/CD18 (Mac-1/CR3)
- Cell surface expression of CD11
- Phagocytosis of hiC3b-coated beads by cells
- Complement and SLE: conclusions
- ‘SLE paradox'
- Anti-C1q antibodies and SLE
- Anti-C1q antibodies: detection
- Anti-C1q Abs: what do they recognise?
- Anti-C1q antibodies and SLE
- Are anti-C1q antibodies truly pathogenic?
- Administration of anti-C1q mAb to naïve mice
- Anti-C1q mAb & anti-GBM pretreated mice
- Anti-C1q antibodies and SLE (illustration)
- The development of anti-C1q antibodies in SLE
- Complement activation and renal inflammation
- Anti-C1q Abs: conclusions
- Complement and lupus nephritis
- Complement therapeutics
- Eculizumab (anti-C5 Ab) and SLE
- Complement and SLE: conclusions
- Complement and SLE: graphic summary
- Thank you
Topics Covered
- Measurement of complement in lupus
- The role of complement in lupus pathogenesis
- Anti-C1q antibodies (pathogenic or epiphenomenon?)
- Complement therapy in lupus
Links
Series:
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Therapeutic Areas:
Talk Citation
Botto, M. (2018, January 31). Complement and lupus [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved October 16, 2024, from https://doi.org/10.69645/XNTB1504.Export Citation (RIS)
Publication History
Financial Disclosures
- Prof. Marina Botto has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.
Other Talks in the Series: The Immune System - Key Concepts and Questions
Other Talks in the Series: The Complement System
Transcript
Please wait while the transcript is being prepared...
0:00
My name is Marina Botto.
I'm a Professor of Rheumatology at the Imperial College,
and I'm interested in the role of the complement in systemic lupus erythematosus.
0:14
In these slides, I'm just summarize some of
the key points that I would like to cover today.
First, I will start with a discussion of the value of measuring complement in lupus,
and discuss whether these measurement are clinically helpful.
Then I will briefly discuss the paradoxical role of complement in lupus pathogenesis,
and highlighting the different role of the C1q and C3.
And we'll also mention recent study linking lupus to
some genetic polymorphisms in the complement system to
demonstrate how complement biology is not just an old story.
I would like also to mention the role of
anti-C1q antibodies in the context of this disease.
Finally, I will close by mentioning the potential role
that complement therapy may have in this disease in the future.
1:27
Lupus is systemic autoimmune disease that affects mainly women,
and there is a female-male ratio of nine to one.
It's a disease that has higher prevalence in a certain ethnic groups and particularly,
African-Caribbean and Hispanic population.
It's a disease as it's chronic,
but is characterized by a clinical course with the flare and remissions.
And the key feature of the disease is the breakdown in immune tolerance.
It's usually abbreviated as SLE.