Podcast
Questions and Answers
What types of cells are primarily responsible for producing Interleukin 6 (IL-6)?
What types of cells are primarily responsible for producing Interleukin 6 (IL-6)?
- Only macrophages
- Both B-cells and collagen-producing cells
- T-cells, B-cells, and fibroblasts (correct)
- Lymphocytes and macrophages
Which of the following diseases is NOT associated with the inflammatory processes stimulated by IL-6?
Which of the following diseases is NOT associated with the inflammatory processes stimulated by IL-6?
- Atherosclerosis
- Rheumatoid arthritis (RA)
- Asthma (correct)
- Diabetes
What is the primary role of Interleukin 6 (IL-6) concerning fever?
What is the primary role of Interleukin 6 (IL-6) concerning fever?
- It neutralizes toxins to prevent fever.
- It acts as a mediator for fever and the acute phase response. (correct)
- It activates T-cells to produce antibodies.
- It suppresses the fever response.
Which of the following best describes how IL-6 is secreted?
Which of the following best describes how IL-6 is secreted?
In what condition may IL-6 stimulate autoimmune processes?
In what condition may IL-6 stimulate autoimmune processes?
Which of the following is an effect of Interleukin 1 receptor antagonist (IL-1Ra)?
Which of the following is an effect of Interleukin 1 receptor antagonist (IL-1Ra)?
Which therapy is a dimeric fusion protein that targets IL-1?
Which therapy is a dimeric fusion protein that targets IL-1?
Anakinra is classified as which type of therapy?
Anakinra is classified as which type of therapy?
Which condition is NOT mentioned as an off-label use for IL-1Ra?
Which condition is NOT mentioned as an off-label use for IL-1Ra?
Canakinumab is primarily classified as which type of molecule?
Canakinumab is primarily classified as which type of molecule?
What is the primary function of tumor necrosis factor α (TNF-α)?
What is the primary function of tumor necrosis factor α (TNF-α)?
Which cells are NOT identified as sources of TNF-α?
Which cells are NOT identified as sources of TNF-α?
Which transcription factor does TNF-α primarily stimulate to regulate inflammation?
Which transcription factor does TNF-α primarily stimulate to regulate inflammation?
Which of the following conditions is NOT associated with increased levels of TNF-α?
Which of the following conditions is NOT associated with increased levels of TNF-α?
What type of molecules are the primary effects of TNF-α on?
What type of molecules are the primary effects of TNF-α on?
Which of the following cells is NOT a source of TNF-α?
Which of the following cells is NOT a source of TNF-α?
Which cell type is primarily responsible for initiating the inflammatory cascade via TNF-α?
Which cell type is primarily responsible for initiating the inflammatory cascade via TNF-α?
In chronic immune-mediated diseases, TNF-α is primarily involved in which aspect?
In chronic immune-mediated diseases, TNF-α is primarily involved in which aspect?
Which antibody binds to CD20 and is under investigation for multiple sclerosis (MS)?
Which antibody binds to CD20 and is under investigation for multiple sclerosis (MS)?
What type of cell line is Ublituximab produced in?
What type of cell line is Ublituximab produced in?
Which antibody has a higher affinity towards CD20 compared to rituximab?
Which antibody has a higher affinity towards CD20 compared to rituximab?
Which antibody specifically binds to CD19?
Which antibody specifically binds to CD19?
What characteristic does Ublituximab have that enhances antibody-dependent cellular cytotoxicity (ADCC)?
What characteristic does Ublituximab have that enhances antibody-dependent cellular cytotoxicity (ADCC)?
Which therapy binds to CD19, ultimately resulting in B-cell death?
Which therapy binds to CD19, ultimately resulting in B-cell death?
What is the primary mechanism of action for Belimumab?
What is the primary mechanism of action for Belimumab?
What does afucosylation enhance in therapies like Inebilizumab?
What does afucosylation enhance in therapies like Inebilizumab?
Which condition is NOT mentioned in relation to Ianalumab?
Which condition is NOT mentioned in relation to Ianalumab?
Which cell line is employed in the production of Inebilizumab?
Which cell line is employed in the production of Inebilizumab?
Which cytokine does Belimumab target to reduce B-cell activity?
Which cytokine does Belimumab target to reduce B-cell activity?
In which clinical condition is Ianalumab currently undergoing Phase III trials?
In which clinical condition is Ianalumab currently undergoing Phase III trials?
What effect does Ianalumab have on B-cells?
What effect does Ianalumab have on B-cells?
What is the primary mechanism of action of Ustekinumab?
What is the primary mechanism of action of Ustekinumab?
Which of the following therapies selectively binds to the p19 subunit of IL-23?
Which of the following therapies selectively binds to the p19 subunit of IL-23?
In which year was Guselkumab approved?
In which year was Guselkumab approved?
What type of cells does Risankizumab use for manufacturing?
What type of cells does Risankizumab use for manufacturing?
Which condition is NOT listed under the clinical applications for Tildrakizumab?
Which condition is NOT listed under the clinical applications for Tildrakizumab?
What type of antibody is Mirikizumab classified as?
What type of antibody is Mirikizumab classified as?
How does Guselkumab affect pro-inflammatory cytokine release?
How does Guselkumab affect pro-inflammatory cytokine release?
What is the molecular format of Ustekinumab?
What is the molecular format of Ustekinumab?
Which therapy has been investigated for Crohn's disease?
Which therapy has been investigated for Crohn's disease?
Which of the following statements is true about the clinical applications of the therapies mentioned?
Which of the following statements is true about the clinical applications of the therapies mentioned?
Flashcards
TNF-α
TNF-α
A protein released by immune cells, primarily monocytes and their descendants, that triggers inflammation.
Macrophages
Macrophages
Cells that engulf and destroy foreign invaders and cellular debris.
Macrophages / NF-κB
Macrophages / NF-κB
TNF-α stimulates these cells to release pro-inflammatory cytokines.
Chronic Inflammation
Chronic Inflammation
A type of inflammatory response that lasts for a long time.
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Autoimmune Diseases
Autoimmune Diseases
A group of immune-related diseases involving inflammation of the joints.
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TNF-α and Autoimmunity
TNF-α and Autoimmunity
TNF-α plays a significant role in the pathogenesis of many autoimmune conditions.
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Cytokine
Cytokine
A molecule that signals between cells, initiating various physiological responses, often associated with inflammation.
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Inflammatory Response
Inflammatory Response
TNF-α triggers and amplifies the inflammatory response.
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Interleukin-6 (IL-6)
Interleukin-6 (IL-6)
A protein that signals between cells, promoting inflammation and immune responses. It's produced by various immune cells, especially macrophages, in response to microbial molecules.
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Acute phase response
Acute phase response
A rapid and coordinated response to infection or injury, involving the release of inflammatory mediators, like IL-6, to protect the body.
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IL-6 and disease
IL-6 and disease
IL-6 plays a role in the development and progression of numerous diseases, including diabetes, atherosclerosis, rheumatoid arthritis, and systemic lupus erythematosus.
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What is IL-1Ra?
What is IL-1Ra?
Interleukin-1 receptor antagonist (IL-1Ra) is a naturally occurring protein that competes with and inhibits the inflammatory effects of Interleukin-1 (IL-1), a powerful inflammatory cytokine.
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How does Anakinra work?
How does Anakinra work?
Anakinra is a recombinant human IL-1 receptor antagonist (IL-1Ra) protein that acts as a decoy to prevent IL-1 from triggering inflammation. Similar to IL-1Ra, it binds to the IL-1 receptor and blocks the signal.
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What is Canakinumab's mechanism of action?
What is Canakinumab's mechanism of action?
Canakinumab is a monoclonal antibody that specifically targets IL-1β, a specific type of Interleukin-1, involved in the inflammatory process. It works by neutralizing IL-1β, preventing its binding to its receptor and thus reducing inflammation.
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How does Rilonacept work?
How does Rilonacept work?
Rilonacept is a fusion protein composed of parts of the IL-1 receptor and its accessory protein, coupled to an antibody fragment. This allows it to bind and neutralize both IL-1α and IL-1β, effectively blocking their inflammatory effects.
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What are IL-1β-targeted therapies?
What are IL-1β-targeted therapies?
IL-1β-targeted therapies are medications specifically designed to block the activity of Interleukin-1β, a key inflammatory mediator. These drugs work by interfering with IL-1β's signaling pathway, reducing inflammation and potentially improving symptoms in various inflammatory and autoimmune diseases.
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Ulcerative Colitis (UC)
Ulcerative Colitis (UC)
A type of inflammatory bowel disease (IBD) characterized by inflammation and ulcers in the colon.
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Crohn's Disease (CD)
Crohn's Disease (CD)
A type of inflammatory bowel disease (IBD) affecting any part of the digestive tract from mouth to anus, causing inflammation and ulcers.
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Psoriatic Arthritis (PsA)
Psoriatic Arthritis (PsA)
A chronic autoimmune disease affecting the joints, skin, and other organs, characterized by inflammation.
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Interleukin-23 (IL-23)
Interleukin-23 (IL-23)
A cytokine that plays a role in inflammation and autoimmune disorders.
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Th17 Cells
Th17 Cells
A type of immune cell that helps regulate the immune response and is involved in inflammation.
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Ustekinumab
Ustekinumab
A protein that binds to the p40 subunit of both IL-12 and IL-23, preventing them from activating their receptors.
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Guselkumab
Guselkumab
A protein that selectively binds to the p19 subunit of IL-23, preventing it from initiating inflammation.
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Risankizumab
Risankizumab
A protein that binds to the p19 subunit of IL-23, preventing its action on the IL-23 receptor.
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Tildrakizumab
Tildrakizumab
A protein that binds to the p19 subunit of IL-23 and neutralizes its ability to cause inflammation.
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Mirikizumab
Mirikizumab
A protein that binds to the p19 subunit of IL-23 and inhibits its activity, currently under investigation for various inflammatory conditions.
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Anti-B cell therapy
Anti-B cell therapy
A type of antibody therapy designed specifically to target and eliminate B cells, contributing to the suppression of the immune response.
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Antibody-dependent cellular cytotoxicity (ADCC)
Antibody-dependent cellular cytotoxicity (ADCC)
A type of immunotherapy that helps the immune system recognize and attack cancer cells. It uses antibodies to target specific proteins on the surface of cancer cells, leading to their destruction.
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Antibody-dependent cellular phagocytosis (ADCP)
Antibody-dependent cellular phagocytosis (ADCP)
A type of immunotherapy that helps the immune system recognize and attack cancer cells. It uses antibodies to target specific proteins on the surface of cancer cells, leading to their destruction.
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Fucose
Fucose
A sugar molecule that is often found on antibodies. Decreasing the fucose content on an antibody enhances its ability to trigger ADCC and ADCP, making it more effective at eliminating targeted cells.
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Afucosylation
Afucosylation
A process used to modify antibodies to make them more effective. This typically involves reducing fucose content, enhancing their ability to trigger ADCC and ADCP.
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B-Cell
B-Cell
A type of cell that plays a key role in the immune response. They are responsible for producing antibodies, which help to fight infections and other diseases.
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Anti-BAFF therapy
Anti-BAFF therapy
A type of antibody therapy that targets and blocks the activity of B cell activating factor (BAFF), which is a protein involved in B cell development and survival.
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Belimumab
Belimumab
A type of monoclonal antibody therapy that directly binds to and neutralizes the cytokine B cell activating factor (BAFF), preventing its interaction with B cells and reducing their activation.
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Ofatumumab
Ofatumumab
A monoclonal antibody therapy used to treat multiple sclerosis (MS) that targets the CD20 antigen on B cells. It is a human IgG1 antibody produced in a murine cell line (NS0).
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Ublituximab
Ublituximab
A monoclonal antibody used to treat multiple sclerosis (MS). It is a chimeric IgG1 antibody produced in a rat cell line (YB2/0). It has a low fucose content, enhancing antibody-dependent cellular cytotoxicity (ADCC).
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Inebilizumab
Inebilizumab
A humanized afucosylated IgG1 monoclonal antibody used to treat neuromyelitis optica spectrum disorder (NMOSD). It binds to CD19, a B-cell surface antigen, and triggers cell death.
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Humanized Antibody
Humanized Antibody
A type of monoclonal antibody that is modified to be more similar to human antibodies, reducing the risk of an immune response.
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Antibody Therapeutics for Cancer
- Antibody therapeutics target various cancer-related factors like growth factors and immune checkpoints,
- Growth factor targets include EGFR/HER1 (cetuximab, panitumumab), HER2 (trastuzumab, pertuzumab), and VEGF (bevacizumab, ranibizumab, aflibercept, ramucirumab).
- Immune checkpoint targets include CTLA-4 (ipilimumab), PD-1 (nivolumab, pembrolizumab), PD-L1 (atezolizumab, durvalumab), and CD20 (rituximab, ofatumumab, obinutuzumab).
- Additional targeted therapies involve EpCAM and CD3 (atumaxomab) and CD3 and CD19 (blinatumomab).
Antibody Therapeutics for Autoimmune, Cardiovascular, and Infectious Diseases
- Antibody therapeutics are used to treat autoimmune, cardiovascular, and infectious diseases.
Autoimmune Diseases
- Autoimmune diseases affect 3-10% of the general population,
- These disorders involve dysregulated inflammation against self-antigens.
- They can affect various body parts (e.g., heart, brain, nerves, muscles, skin, eyes, joints, lungs, kidneys, glands, digestive tract),
- Numerous autoimmune disorders exist, with over 100 different types.
Autoimmune Diseases: Treatments
- Conventional treatments for autoimmune diseases often suppress general immune function to modulate inflammation.
- Recent advancements in disease pathogenesis and drug manufacturing techniques have led to targeted immunotherapy, including monoclonal antibodies (mAbs) and fusion proteins targeting specific molecular mediators or cell-surface markers.
- Targeted TNF protein therapeutics have improved autoimmune disease treatment.
Autoimmune Diseases: Targets
- Autoimmune inflammation involves dysregulated immune cell activation, inflammatory cytokines, and intracellular signaling molecules.
- Key molecules in the inflammatory pathway are therapeutic targets for autoimmune diseases.
Targets
- Targets include cytokines, B and T cells, and kinases.
- Emerging targets and therapeutic approaches are also being investigated.
Cytokine-Targeted Therapies
- Specific antibodies are targeted against various cytokines (e.g., TNF-α, IL-1, IL-6, IL-17) in autoimmune diseases.
- Drugs include etanercept, infliximab, adalimumab, golimumab, certolizumab, and others that target their specific receptors.
Tumor Necrosis Factor α (TNF-α)-Targeted Therapies
- TNF-α is a pro-inflammatory cytokine produced by immune cells.
- These therapies target TNF-α to reduce its inflammatory effects in autoimmune diseases like rheumatoid arthritis, psoriasis, and others.
- Specific drugs include infliximab, etanercept, adalimumab, and certolizumab pegol.
Tumor Necrosis Factor α (TNF-α)-Targeted Therapies - Mechanisms
- Various formats include chimeric IgG1, fusion proteins, humanized IgG1, humanized IgG1 Fab fragments ,and humanized IgG1.
Type 1 Interferons (IFNs)-Targeted Therapies
- Type 1 interferons (e.g., IFN-α, IFN-β) play major roles in inflammatory responses and autoimmune disorders.
- Anifrolumab is a targeted therapy that inhibits type 1 interferon activity.
Cell-Targeted Therapies
- Cell therapies target B- or T-cells to treat autoimmune disorders.
- Strategies include targeting antigens on B-cells (using anti-CD20 antibodies like rituximab) or regulating T-cell activity (e.g., abatacept).
B-Cell-Targeted Therapies
- Antibodies that target specific B-cell molecules (e.g., CD20, BAFF) or manipulate cytokine pathways.
- Therapies for B cells include Rituximab, Ocrelizumab, Ofatumumab, and others.
T-Cell-Targeted Therapies
- Strategies to regulate T cell activity, including targeting key molecules involved in T-cell activation and regulation (such as CTLA-4, CD40).
- Therapies for T cells include abatacept.
Kinase-Targeted Therapies
- Kinase inhibitors (e.g., JAK inhibitors like tofacitinib and baricitinib) are used to treat various autoimmune disorders.
Emerging Targets and New Approaches
- Novel therapeutic approaches, including CAR T-cell therapy, low-dose IL-2 therapy, and immune tolerance induction are being investigated.
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