Immunology Lab Techniques Course

Lesson 1 • Antigens, Antibodies, and Epitopes

Defines antigen structure, epitope mapping, and antibody architecture. Understanding these relationships is essential for designing and interpreting binding assays.

Lesson 2 • Laboratory Safety and Biosafety Levels

Covers biosafety classifications, personal protective equipment, and waste disposal for immunological work. Compliance with biosafety standards is compulsory before bench work begins.

Lesson 3 • Cytokines and Immune Signaling

Introduces cytokine families, receptors, and signaling cascades. This knowledge supports interpretation of functional assays and multiplex cytokine panels.

Lesson 4 • Innate and Adaptive Immunity Overview

Covers cellular and molecular components of both immune branches. Provides the biological context that underpins every assay performed in later chapters.

Lesson 1 • Pipetting Accuracy and Precision

Trains correct pipette selection, calibration checks, and technique for volumes from nanolitres to millilitres. Errors here propagate through every downstream assay.

Lesson 2 • Buffer Preparation and pH Control

Covers formulation of common immunology buffers and pH adjustment. Correct buffer composition directly affects antibody binding and cell viability.

Lesson 3 • Protein Quantification Methods

Compares BCA, Bradford, and absorbance-based assays for total protein measurement. Accurate protein quantification normalises samples before immunoassays.

Lesson 4 • Blood and Tissue Sample Collection

Describes venipuncture tubes, tissue biopsy handling, and pre-analytical variables. Proper collection prevents haemolysis and protein degradation that compromise results.

Lesson 1 • Detection Antibodies and Enzyme Conjugates

Addresses secondary antibody selection, HRP and AP conjugate chemistry, and substrate systems. Conjugate quality directly controls signal-to-noise ratio.

Lesson 2 • ELISA Troubleshooting and Validation

Systematically diagnoses high background, low signal, and hook effect artefacts. Validation parameters ensure assay performance meets regulatory and publication standards.

Lesson 3 • Plate Coating and Blocking Strategies

Covers antigen and capture antibody adsorption conditions and blocking agent selection. Inadequate blocking is the leading cause of high background in ELISA.

Lesson 4 • ELISA Principles and Format Selection

Explains antigen-antibody binding kinetics and the rationale for each ELISA format. Format choice determines sensitivity, specificity, and throughput for a given analyte.

Lesson 1 • Antibody Incubation and Detection

Addresses primary and secondary antibody dilution, incubation conditions, and ECL vs. fluorescent detection. Antibody optimisation prevents non-specific bands.

Lesson 2 • Image Acquisition and Densitometry

Teaches film exposure, digital imaging, and densitometric quantification of band intensity. Accurate densitometry requires normalisation to loading controls.

Lesson 3 • Troubleshooting Western Blot Artefacts

Identifies causes of high background, missing bands, and uneven transfer. Systematic troubleshooting reduces reagent waste and experimental failure rates.

Lesson 4 • SDS-PAGE Gel Electrophoresis

Covers gel casting, sample denaturation, and electrophoretic separation by molecular weight. Proper gel percentage selection resolves proteins in the target size range.

Lesson 1 • Fluorochrome Selection and Panel Design

Covers spectral overlap, spillover compensation, and fluorochrome brightness hierarchy. Poorly designed panels produce unresolvable populations and inaccurate phenotyping.

Lesson 2 • Data Analysis and Reporting

Covers software-based analysis, population statistics, and graphical presentation of flow data. Correct reporting includes compensation settings and gating logic for reproducibility.

Lesson 3 • Sample Staining Protocols

Details surface, intracellular, and intranuclear staining workflows. Each staining type requires specific fixation and permeabilisation conditions.

Lesson 4 • Flow Cytometer Instrumentation

Explains laser sources, optical filters, detectors, and fluidics systems. Understanding hardware prevents misinterpretation of instrument-specific artefacts.

Lesson 1 • Nuclear and Organelle Counterstaining

Addresses DAPI, propidium iodide, and organelle-specific dyes for contextual staining. Counterstains provide morphological reference for immune marker localisation.

Lesson 2 • Image Analysis and Quantification

Teaches fluorescence intensity measurement, co-localisation coefficients, and cell counting using image analysis software. Quantitative imaging converts visual data into statistically valid results.

Lesson 3 • Direct and Indirect Immunofluorescence

Explains primary and secondary antibody staining strategies and fluorophore selection for tissue sections. Indirect staining amplifies signal but requires additional specificity controls.

Lesson 4 • Confocal and Widefield Microscopy

Compares widefield epifluorescence and confocal laser scanning microscopy for resolution and depth. Confocal optical sectioning resolves co-localisation in three dimensions.

Lesson 1 • Phagocytosis and Oxidative Burst Assays

Measures macrophage and neutrophil phagocytic capacity and reactive oxygen species production. These assays evaluate innate immune effector function in vitro.

Lesson 2 • Cytotoxicity and Cell Death Assays

Explains LDH release, calcein-AM, and annexin V assays for measuring NK and CTL killing activity. Distinguishing apoptosis from necrosis requires complementary staining strategies.

Lesson 3 • Cytokine Secretion and ELISpot Assays

Covers ELISpot for single-cell cytokine secretion and multiplex bead-based cytokine panels. ELISpot detects rare antigen-specific cells at frequencies undetectable by ELISA.

Lesson 4 • Lymphocyte Proliferation Assays

Covers CFSE dilution, BrdU incorporation, and Ki-67 staining to quantify antigen-driven proliferation. Proliferation assays assess T-cell and B-cell responsiveness to stimuli.

Lesson 1 • Translational and Clinical Applications

Connects laboratory techniques to diagnostic immunology, vaccine development, and immunotherapy monitoring. Students evaluate how bench assays inform clinical decision-making.

Lesson 2 • Immunoprecipitation and Co-IP

Covers antigen capture with antibody-bead conjugates and co-immunoprecipitation of interacting proteins. These techniques map protein-protein interactions in immune signalling complexes.

Lesson 3 • Statistical Analysis for Immunology Data

Covers parametric and non-parametric tests, sample size calculation, and multiple comparison corrections. Appropriate statistics prevent false-positive conclusions in immunological studies.

Lesson 4 • Experimental Controls and Reproducibility

Defines positive, negative, isotype, and biological controls for each assay type. Rigorous controls are the foundation of reproducible and publishable immunological data.