Implant (IMAGE) Washington University School of Medicine Caption Researchers at Washington University School of Medicine in St. Louis have genetically engineered cells that, when implanted in mice, deliver a biologic drug in response to inflammation. Pictured is an implant consisting of a woven scaffold coated with the engineered cartilage cells that release a drug in response to inflammation. Credit Guilak lab Washington University Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.