Study Finds that Protein c-Rel Has Major Role in Psoriasis Inflammation

A recent study by Case Western Reserve University School of Medicine researchers illuminates the role of the protein NF-kB c-Rel in exacerbating psoriasis symptoms. The research, published in eBioMedicine, explored how c-Rel contributes to the function of dendritic cells (DCs) and responds to signals through Toll Like Receptor 7 (TLR7), which regulates innate immunity and inflammation.

The study found elevated levels of c-Rel in psoriasis patients' skin samples and demonstrated that mice lacking c-Rel were significantly protected from developing psoriasis and showed reduced inflammation. This suggests that c-Rel plays a crucial role in the inflammatory process associated with psoriasis.

Parameswaran Ramakrishnan, the study's principal investigator, stated, "We believe that by focusing on c-Rel and TLR7, scientists might be able to create more targeted treatments that reduce inflammation and help psoriasis symptoms". The research team also observed that the absence of c-Rel alleviated the inflammation causing red, scaly patches on the skin.

The study's findings highlight the potential link between viral TLR7 activation and worsening psoriatic disease. Various viruses that activate TLR7, including HIV, HPV, and HCV, have been associated with psoriasis development. This connection warrants further investigation into the TLR7-c-Rel-dependent molecular mechanisms regulating DC function.

“The research warrants future studies on TLR7-c-Rel-dependent molecular mechanism regulating DC function as a potential link for how viral TLR7 activation is involved in worsening psoriatic disease,” Ramakrishnan added. “From a broad perspective, it would be interesting to further explore the role of c-Rel and TLR7 in other biologically relevant diseases involving these proteins, such as systemic lupus erythematosus and wound-healing in diabetes.”