SAN DIEGO, March 16, 2023 (GLOBE NEWSWIRE) — Histogen Inc. (NASDAQ: HSTO), a clinical-stage therapeutics company on developing potential first-in-class clinical and preclinical small molecule pan-caspase and caspase selective inhibitors that protect the body’s natural process to restore immune function, today announced that the US Patent and Trademark Office (USPTO) has issued US Patent No. 11,579,703 titled “Caspase Inhibitors and Methods of Use Thereof.”