No longer sold by Abcam. Is this result non-specific?

No longer sold by Abcam. Is the positivity non-specific?

Amazing ( to me) positivity in Bergmann glia processes of the Cerebellum Molecular layer.

Non-specific?

Fibrous astrocytes

Fly Dishevelled homologue: not sure if this is specific but, fibrous astrocytes are positive ( also there is a punctate nuclear/perinuclear positivity).

Ab no longer sold by Abcam.

Human stem cells into mouse host.

Dentate gyrus

Is this positivity specific?

Are these neuro-endocrine ( APUD) cells?