Journal: Research
Article Title: Endocannabinoids Block Headache and Anxiety Comorbidity via Two-Pronged Anterior Insular Projections
doi: 10.34133/research.1031
Figure Lengend Snippet: Knocking down MAGL in vAI-PrL and dAI-ovBNST synapses ameliorates headache and comorbid anxiety, respectively. (A to C and N to P) Experimental schedule for MAGL knockdown in vAI-PrL (A and B) and dAI-ovBNST (N and O) synapses, viral injections, and behavioral tests. Representative images show mCherry-expressing neurons in the AI (C and P) and EGFP-expressing neurons in PrL (C) and ovBNST (P). Scale bars, 500 μm. (D to F and Q to S) RNAscope and immunofluorescence costaining show the effective knockdown of the expression of MAGL mRNA in vAI-PrL (D to F) and dAI-ovBNST (Q to S) circuits. Dotted coils indicate neurons infected with AAV viruses. Scale bars, 100 μm (top) or 20 μm (bottom). (G and T) Von Frey tests show effects of MAGL-KD in vAI-PrL (G) or dAI-ovBNST (T) on cephalic cutaneous allodynia. (H to M and U to Z) OFT (H to J and U to W) and EPM tests (K to M and X to Z) show effects of MAGL-KD in vAI-PrL (H to M) or dAI-ovBNST (U to Z) on anxiety-like behaviors. MAGL-NC, MAGL noncoding control; MAGL-KD, MAGL knockdown. The data are presented as the mean ± SEM. ** P <0.01 versus MAGL-NC (F and S). * P <0.05, ** P <0.01 versus Vehicle + MAGL-NC (G to M and T to Z). Detailed statistical results are provided in Table .
Article Snippet: The following antibodies for immunofluorescence staining were employed: rabbit anti-c-fos primary antibodies (1:3,000, ab279289, Abcam), rabbit EGFP [1:100, 2555, Cell Signaling Technology (CST)] primary antibodies (1:100, 43590, CST), rabbit anti-mCherry primary antibodies (1:100, 43590, CST), donkey anti-rabbit Alexa Fluor 488 secondary antibodies (1:1,000, ab150113, Abcam), and donkey anti-rabbit Alexa Fluor 568 secondary antibodies (1:1,000, ab175470, Abcam).
Techniques: Knockdown, Expressing, RNAscope, Immunofluorescence, Infection, Control