Cleavable Light-Erased Antibody Reporter (CLEAR)

Researchers at the Jawaharlal Nehru Centre for Advanced Scientific Research have developed a novel imaging platform called Cleavable Light-Erased Antibody Reporter (CLEAR). The technology enables visualization of a very large number of proteins within the same biological sample using a single fluorescent marker.

Importance of Protein Mapping

Proteins are the main regulators of biological functions and are important targets for medicines as well as disease diagnosis. A detailed proteomic map showing the identity and spatial organization of proteins within tissues can help scientists and doctors better understand diseases such as cancer and neurological disorders.

Challenge in Existing Imaging Techniques

Conventional imaging methods face limitations because they can visualize only a limited number of proteins simultaneously. The requirement of multiple fluorescent markers often causes signal overlap and reduces imaging efficiency, making comprehensive spatial protein mapping difficult.

How CLEAR Works

The CLEAR platform overcomes these limitations by using a single fluorophore in repeated imaging cycles. After each cycle, the fluorescent signal is erased, allowing researchers to image additional proteins in the same biological sample while maintaining high spatial resolution.

Significance of the Technology

The CLEAR imaging platform can enable high-resolution and multiplexed protein imaging in cells and tissues. This could transform biomedical research and clinical diagnostics by providing a more comprehensive understanding of protein organization in biological systems.

Potential Applications

The technology can improve early disease detection, particularly in cancer biology, immunology, and neurological disorders. It may also help researchers study immune responses, tumour microenvironments, and complex brain disorders more effectively.

Source: PIB