Journal: Neural Regeneration Research
Article Title: Overexpression of the inwardly rectifying potassium channel Kir4.1 or Kir4.1 Tyr 9 Asp in Müller cells exerts neuroprotective effects in an experimental glaucoma model
doi: 10.4103/NRR.NRR-D-24-00461
Figure Lengend Snippet: Effects of Kir4.1 overexpression and Kir4.1Tyr 9 Asp overexpression on GFAP expression in cultured Müller glial cells. (A, B) Representative immunoblots (A) and densitometric quantification (B) showing changes in GFAP expression in non-treated and DHPG-treated cultured Müller cells infected with lentiviruses overexpressing the eGFP control (LV-NC), Kir4.1, and Kir4.1 Tyr 9 Asp. All data are normalized to GADPH and then to Ctr. One-way analysis of variance (Tukey–Kramer multiple comparisons test) was performed (** P < 0.01, vs . Ctr group). (C) Double immunofluorescence staining showing changes in GFAP (Cy3, red) expression in non-treated (c1–c12) and DHPG-treated (c13–24) cultured Müller cells infected with lentiviruses overexpressing the eGFP Ctr (LV-NC) (c4–c6 and c16–c18), Kir4.1 (c7–c9 and c19–c21), and Kir4.1 Tyr 9 Asp (c10–c12 and c22–c24) mutation. Kir4.1 overexpression and Kir4.1 Tyr 9 Asp overexpression reduced the DHPG-induced increase in GFAP expression in Müller cells. GFP (indicated by Alexa488) and DAPI are shown in green and blue, respectively. Scale bars: 20 µm. Ctr: Control; DHPG: (S)-3,5-dihydroxyphenylglycine; eGFP: enhanced green fluorescent protein; GAPDH: glyceraldehyde-3-phosphate dehydrogenase; GFAP: glial fibrillary acidic protein; GFP: green fluorescent protein; LV-NC: eGFP control lentiviruses.
Article Snippet: The secondary antibodies used were donkey anti-mouse Cy3 (1:500, Cat# 715-165-151, RRID: AB_2315777) and donkey anti-rabbit 488 (1:500, Cat# 711-545-152, RRID: AB_2313584, Jackson ImmunoResearch Labs).
Techniques: Over Expression, Expressing, Cell Culture, Western Blot, Infection, Control, Double Immunofluorescence Staining, Mutagenesis