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4 protocols using anti scp3

1

Immunohistochemical Analysis of Testicular Tissue

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Two months after transplantation, sections prepared from the testicular tissue were deparaffinized and dehydrated; then, the sections were boiled in buffer citrate at 100 °C (20 min) for antigen retrieval. In order to block nonspecific antigens and ensure permeabilization, the sections were exposed to 0.1% bovine serum albumin (BSA, Sigma-Aldrich, USA) in 0.1% triton X-100 for 1 h. Then, the sections were incubated at 4 °C overnight with the primary antibodies against the following markers (PLZF, SCP3): anti-PLZF (1:500, Santa Cruz, USA) and anti-SCP3 (1:400, Abcam, USA). Next, the sections on the slides were washed with PBS, and goat anti-rabbit secondary antibody conjugated with FITC (1:400, Abcam, USA) was added to the slides and maintained at room temperature for 2 h. Tissue sections of the testis were stained with DAPI to detect the cell nucleus and then observed under a fluorescence microscope (Olympus LX71, Japan) equipped with a camera.
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2

Immunocytochemical Characterization of Stem Cells

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Epithelial cells, oocyte-like cells, and colonies maintained on hAECs were fixed with 4% paraformaldehyde for 15 to 20 minutes at room temperature and permeabilized with 0.1% Triton X-100 for 10 minutes at room temperature. Cells were then blocked with blocking solution for 30 minutes and incubated with anti-OCT4 (rabbit anti-human 1:200; Santa Cruz), anti-NANOG (rabbit anti-human, 1:200; Chemicon, Rolling Meadows, IL, USA), anti-DAZL (goat anti human, 1:500; Santa Cruz), anti-STELLA (goat anti-human, 1:200; Santa Cruz), anti-ZPC (rabbit anti-human, 1:200; Santa Cruz), anti-SCP3 (rabbit anti-human, 1:800; Abcam), anti-GDF9 (rabbit anti-human, 1:200; Millipore), anti-SSEA4 (mouse anti-human, 1:100; Millipore), anti Tra-1-60 (mouse anti-human, 1:100; Millipore), and anti Tra-1-81(mouse anti-human, 1:100; Millipore) antibody for 1 hour at room temperature. Cells were then probed with fluorescein isothiocyanate-labeled IgG (1:200; Santa Cruz) or Rodamine (TRITC)-labeled IgG (1:100; Invitrogen) and incubated at room temperature for another 20 minutes. The slides were then covered with mounting medium (glycerol diluted 3:1 in PBS; Vector Laboratories, Burlingame, CA, USA). Fluorescence images were obtained with a Leica DMI3000 microscope.
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3

Comprehensive Immunofluorescence Analysis of Mouse Testis

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The mice were anesthetized using the 0.4% pentobarbital sodium (1 mL/100 g) solution. After that, the mice were perfused with 0.9% saline solution and treated with 4% paraformaldehyde. The testis and epididymis were carefully dissected and immersed in 30% sucrose solution for 2 days. The testis and epididymis were sliced into 15-μm-thick slices, and then the slices were washed with 0.01 M PBS three times for 5 min each time. The slices were then incubated with goat serum at 37°C for 60 min. Mouse monoclonal FtH antibody (1:200; Cat. No. ab104224, Abcam, Waltham, MA, United States), anti-FtL (1:400; Cat. No. 20403-1-AP ProteinTech, Rosemont, IL, United States), anti-DDX4 (1:400; Cat. No. CL488-67147, ProteinTech, Wuhan, China), anti-SCP3(1:400; No. ab97672, Abcam, Waltham, MA, United States), anti-GATA1 (1:400; Cat. No. 60011-1-Ig, ProteinTech, Wuhan, China), anti-Ki67 (1:400; No. ab115730 Abcam, Waltham, MA, United States), and anti-ZO1 (1:400; Cat. No. ab24950, Abcam, Waltham, MA, United States) were used as primary antibodies. The slices were incubated overnight at 4°C. Next, the slices were incubated with FITC-conjugated and rhodamine-conjugated secondary antibodies. Images were observed using a ZEISS LSM710.
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4

Immunophenotyping of Oocyte-like Cells

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IOSE80 cells, oocyte-like cells, and colonies maintained on hAECs were fixed with 4% paraformaldehyde for 15‒20 min at room temperature and permeabilized with 0.1% Triton X-100 for 10 min at room temperature. Cells were then blocked with 5% FBS in PBS for 30 min and incubated with primary antibodies, including anti-NANOG (rabbit anti-human; 1:200; Abcam, Cambridge, UK), anti-EpCAM (goat anti-human; 1:500; Santa Cruz Biotechnology), anti-IFITM3 (rabbit anti-human; 1:200; Novus Biologicals, Littleton, USA), anti-ZPC (rabbit anti-human; 1:200; Santa Cruz Biotechnology), anti-SCP3 (rabbit anti-human; 1:800; Abcam), anti-GDF9 (rabbit anti-human; 1:200; Millipore, Billerica, USA), anti-SSEA4 (mouse anti-human; 1:100; Millipore), anti-Tra-160 (mouse anti-human; 1:100; Millipore), and anti-Tra-1-81 (mouse anti-human; 1:100; Millipore) antibodies for 1 h at room temperature. Cells were then probed with fluorescein isothiocyanate-labelled IgG (1:200; Santa Cruz Biotechnology) or rhodamine (TRITC)-labelled IgG (1:100; Invitrogen, Carlsbad, USA) antibodies and incubated at room temperature for an additional 30 min. Each antibody was detected using corresponding secondary antibodies conjugated to fluorescein isothiocyanate. Fluorescence images were obtained using a Leica DMI3000 microscope or an SP8 confocal microscope (Leica Microsystems, Wetzlar, Germany).
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