Monitoring photodynamic therapy of head and neck malignancies with optical spectroscopies

Figure 3 Signal transducer and activator of transcription 3 crosslinking as a molecular marker for local photodynamic therapy dose. Signal transducer and activator of transcription 3 (STAT3) crosslinking for Patient-1 and Patient-2 with a human hypopharyngeal carcinoma cell line (FaDu) shown as a control. Adapted from the reference[74] with the permission. PDT: Photodynamic therapy.