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Osteosarcoma

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Overview

As the most common type of bone cancer in male adolescents and young adults between the ages of 10 and 25, osteosarcoma originates most often from the wide ends of long bones, such as the femur, tibia in the leg, and the humerus in the upper arm. The tumor is highly malignant and can spread rapidly to other bones or/and to the lungs. Despite surgery and combination chemotherapy improvements in outcome during the last 30 years for patients with local disease, the 5-year survival rate of the sufferers with this metastatic disease remains low. CAR-T cells therapy is an attractive approach to overcome the limitation caused by the low HER2 expression level of this disease, as the engagement of a limited number of modified T-cell receptor molecules would be sufficient to trigger a cytotoxic anti-tumor effect response.

Signs, symptoms and treatments

Symptoms of osteosarcoma may be present at the tumor site, such as sharp or dull pain, welling, limping, decreased joint motion. However, the symptoms are common to other health problems, which make the diagnosis of osteosarcoma to be challenging. So it always takes weeks to months to get the diagnosis after the symptoms appearing.

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