Research Article

Full-Length TrkB Variant in NSCLC Is Associated with Brain Metastasis

Figure 4

Immunohistochemical detection of BDNF protein expression in section of metastasis from the skin, liver, and bone. The BDNF immunostaining was strongly expressed in the different metastatic sites studied (a, b). Note the specific clear immunostaining within cancer cells in metastatic cancer cells. ×20.
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(b)