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"The peripheral benzodiazepine receptor (PBR) has previously been reported as an oncogene in prostate, breast and colorectal cancers"

This is a quote from a paper in J Cancer. 2017; 8(16): 3343–3355.The title is:

The Prognostic Value of Peripheral Benzodiazepine Receptor in Patients with Esophageal Squamous Cell Carcinoma

The paper found that esophageal squamous cell carcinoma likewise (with breast, prostate, and colorectal cancers) expresses a protein similar to a benzodiazepine receptor, and all these cancers are promoted or activated by benzodiazepine molecules.

I believe that people with these cancers will still receive and use benzodiazepines for anxiety or as a part of anesthetics.

The greater significance is that these receptors can be used to make sensitive detection assays for metastasis and for progression of disease in these cancers.

Or, maybe, a different and novel route for chemo- or immunotherapy of these cancers can come from these findings.