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6 protocols using ab13970

1

Immunostaining of Skin Sections

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Paraffin- or optimal cutting temperature compound-embedded tissues were sectioned and stained6 (link)7 (link) using the following primary antibodies (all diluted 1:100 unless stated otherwise) for immunofluorescence labelling: Lrig: R&D Systems, FAB3688G; CD26: R&D Systems, AF954; Sca1: R&D Systems, AF1226; PDGFRa: R&D Systems, AF1062; Collagen III: Abcam, ab7778, Collagen11a1: Abcam, ab64883; Elastin: Abcam, ab21610; Caveolin: Cell Signaling Technology, 3267; phospho-Histone H3 (Ser10) antibody: Cell Signalling Technology, 970; Active Caspase-3: RnD Systems, AF835; K14: Covance, PRB-155P, 1:500; GFP: Abcam, ab13970, 1:500; RFP: Rockland, 600-401-379, 1:300. EdU staining was performed with a Click-it EdU imaging kit (Invitrogen) according to the manufacturer's recommendations. Images were acquired with a Nikon A1 Upright Confocal microscope. Images of H&E- and Herovici-stained sections were acquired with a Hamamatsu slide scanner. Representative images of skin from two to three independent experiments with at least three biological replicates per group are shown.
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2

Immunohistochemical Analysis of Mouse Brain

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Both male and female mice (9–14 weeks old) were
transcardially perfused with 0.1 M phosphate buffered saline (PBS) followed
by 10% formalin. Brains were dissected out and post-fixed in 10% formalin
for several hours and then cryoprotected in 30% sucrose (0.1 M PBS). Serial
40 μm sections were collected and incubated with the following
primary antibodies overnight at 4°C: rabbit anti-S100β
(1:1,000; Abcam, ab41548), mouse anti-NeuN (1:1,000; Millipore, MAB377),
chicken anti-GFP (1:1,000; Abcam, ab13970), rabbit anti-RFP (1:1,000;
Rockland, 600–401-379), chicken anti-RFP (1:1,000; a gift from Dr.
Brecha’s laboratory at UCLA), rabbit anti-GAT-3 (1:500; a gift from
Dr. Brecha’s laboratory at UCLA), rabbit antiKir4.1 (1:1,500;
Alomone, APC-035), rabbit anti-DARPP-32 (1:200; Abcam, ab40801) or mouse
anti-HA (1:1,000; Covance, MMS-101R). Sections were then incubated with the
following secondary antibodies (1:1,000; Molecular Probes): Alexa Fluor 488
goat anti-chicken (A11039), Alexa Fluor 488 goat anti-rabbit (A11008), Alexa
Fluor 546 goat anti-mouse (A11003), Alexa Fluor 546 goat anti-chicken
(A11040) and Alexa Fluor 594 goat anti-rabbit (R37007) at room temperature
for 2 h. Fluorescence imaging was acquired with a 40× oil-immersion
objective lens (NA 1.3) under a laser-scanning confocal microscope
(Olympus).
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3

Immunohistochemistry for Fluorescent Markers

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IHC. Tissue was processed for GFP, mCherry, dsRed and/or c-Fos (FOS-IR) IHC as previously described (D’Agostino et al., 2016 ). Briefly, mice were transcardially perfused with phosphate buffered saline (PBS) followed by 10% neutral buffered formalin (Sigma-Aldrich). Brains were extracted, post-fixed in 10% neutral buffered formalin at 4°C, cryoprotected in 20% sucrose at 4°C and then sectioned coronally on a freezing sliding microtome at 25 μm. Tissue was processed for chicken anti-GFP (1:1000; AbCam, ab13970), rabbit anti-dsRED (1:1000; Rockland, 600-401-379), goat anti-mCherry/RFP (1:1000; Sicgen, AB0040-200) or anti-c-FOS (1:5000, rabbit, Calbiochem, PC38) primary antibodies and a biotinylated donkey anti-rabbit (1:500, Jackson ImmunoResearch Laboratories, Inc.) or Alexa Fluor (1:500, Life Technologies) secondary antibodies using standard protocols previously described (Lam et al., 2009 (link), Heisler et al., 2006 (link)). Tissue was then mounted on slides, cover slipped and the NTS visualized using an Axioskop II microscope (Carl Zeiss, Oberkochen, Germany) and Adobe Photoshop CS5 software. Images of single-label immuoreactivity (IR) for GFP or mCherry were used to visualize and analyze NTS injection sites.
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4

In Vivo Tracing of Cre-Expressing Neurons

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AAV-U6-CARMIL3 Cterm sg1-HITI-smFP-P2A-mCherry-SynI-Cre virus was intracortically infused in P0 Cas9 KI mice as described above. Mice were perfused at P14 and brains were cryosectioned to 40 μm sections. Brain slices were then permeabilized for 2 h in 0.2% Triton X-100 and then blocked for 2 h in blocking buffer (Abcam, ab1265870). Slices were then incubated in primary antibodies: Rat Anti-HA (Sigma, 3F10, 1:200), Chicken Anti-GFP (Abcam, ab13970, 1:1000), and Rabbit anti-RFP (Rockland, 600-041-379, 1:1000) for 72 h. Slices were then washed three times in PBS for hour each wash and incubated in secondary antibodies: Alexa Fluor 647 Goat anti-Rat (ThermoFisher, A-21247, 1:1000), Alexa Fluor 488 Goat anti-Chicken (ThermoFisher, A-11006, 1:1000), and Alexa Fluor 555 Goat anti-Rabbit (ThermoFisher, A32732, 1:1000) for 24 h. Slices were then washed three times in PBS for hour each wash and mounted on slides. Slices were imaged and tiled on a Zeiss LSM 710 confocal microscope.
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5

Immunolabeling of Cortical Neurons

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Cerebral cortical sections and neurons were immunolabeled as previously described (Guo et al., 2017 ; Schmid et al., 2003 (link); Weimer et al., 2008 (link); Yokota et al., 2007 (link)) with the following primary antibodies: anti-GFP (chicken, 1:1000; Abcam, ab13970), anti-RFP (rabbit, 1:500; Rockland, cat. nr. 600–401-379), anti-ACIII (rabbit polyclonal, 1:100; Santa Cruz, sc-56855), anti-Tau (mouse 1:1000, Millipore, MAB3420), anti-Map2 (chicken polyclonal, 1:1000, Abcam, ab5392), Immunoreactivity was detected by incubation with appropriate AlexaFluor 488 or Cy3-conjugated secondary antibodies (Invitrogen and Jackson ImmunoResearch). AlexaFluor 488, 647 or Cy3-conjugated (Invitrogen and Jackson ImmunoResearch) secondary antibodies were used. Nuclei were counterstained with DAPI (Sigma).
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6

Dual Immunofluorescence Staining Protocol

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Primary antibodies used for the first round are: mouse anti-Fasciclin II (DSHB, 1D4), 1:20; Chicken anti-GFP (abcam, ab13970), 1:400; Rabbit anti-RFP (Rockland), 1:400. Conjugated secondary antibodies used for the first round are: Goat anti-mouse Alexa-405 (A31553, Thermo Fisher Scientific), 1:250; Goat anti-chicken Alexa-488 (A32931, Thermo Fisher Scientific), 3:500; Donkey anti-rabbit Alexa-568 (A10042, Thermo Fisher Scientific), 1:500. Primary antibody used for the second round is: mouse anti-Chaoptin (DSHB, 24B10), 1:20. Conjugated secondary antibody used for the second round is: Donkey anti-mouse Alexa-647 (A31571, Thermo Fisher Scientific), 1:100.
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