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Updated: Nov 30, 2025
Determination of the Relative Potency of an Anti-TNF Monoclonal Antibody mAb by Neutralizing TNF Using an In Vitro Bioanalytical Method
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Methods for Evaluation of TNF-α Inhibition Effect
1Department of Pharmacy, BITS-Pilani Hyderabad Campus, Hyderabad, Telangana State, India.
Abstract:
Tumor necrosis factor superfamily (TNFSF) ligands and receptors have distinctive structural characters that link them to cell growth, cell survival, or cell death. Some of these can activate both inflammatory and apoptotic pathways, depending on target cell types and other extrinsic stimuli. Many of the TNF receptor superfamily molecules are expressed in cells of the immune system, which may be central to autoimmune and inflammatory diseases as well as cancer. However, the function of TNFSF members is not just restricted to immune cells. Members of TNFSF have been linked to an array of pathophysiologies, including cancer, neurologic, cardiovascular, pulmonary, autoimmune, and metabolic diseases. TNF-α of TNFSF is a pro-inflammatory cytokine produced by macrophages/monocytes, widely implicated in the pathogenesis of inflammatory disorders. In view of these facts, TNF-α has been recommended as an important target for discovering drugs for autoimmune and inflammatory diseases and cancer. Various cell-based assays to understand the role of TNF-α in inflammation and to estimate the concentrations of TNF-α levels in body fluids such as plasma, synovium, etc., are being followed by researchers. In this chapter, methods of cell viability assay, ELISA assay, RT-PCR, and western blot analysis for estimating LPS-induced TNF-α protein expressions are described in detail.
Insights
Tumor necrosis factor superfamily (TNFSF) molecules, including TNF-α, are crucial in cell growth, survival, and death. This study details methods for measuring TNF-α expression, vital for understanding inflammatory diseases and cancer drug discovery.
Area of Science:
- Immunology and Molecular Biology
- Cellular Biology
- Pathophysiology
Background:
- Tumor necrosis factor superfamily (TNFSF) ligands and receptors regulate cell growth, survival, and death.
- TNFSF members, particularly TNF-α, are implicated in diverse pathophysiologies including cancer and autoimmune diseases.
- TNF-α, a pro-inflammatory cytokine, plays a central role in inflammatory disorders and is a key drug target.
Purpose of the Study:
- To outline methods for assessing the role of TNF-α in inflammation.
- To detail techniques for quantifying TNF-α levels in biological samples.
- To provide a comprehensive guide for researchers studying TNF-α expression.
Main Methods:
- Cell viability assays to assess cellular responses.
- Enzyme-linked immunosorbent assay (ELISA) for quantifying TNF-α protein levels.
- Reverse transcription-polymerase chain reaction (RT-PCR) and Western blot analysis for gene and protein expression studies.
Main Results:
- Detailed descriptions of established methods for estimating LPS-induced TNF-α protein expression.
- Provides a framework for researchers to quantify TNF-α in various biological contexts.
- Highlights the utility of these assays in disease research.
Conclusions:
- The described methods are essential for understanding TNF-α's role in inflammation and disease.
- Accurate measurement of TNF-α is critical for developing targeted therapies.
- This chapter serves as a valuable resource for researchers in immunology, oncology, and related fields.
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