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Method Article
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July 8th, 2025
Source: Mizutani, Y. et al., Use of Anti-phospho-girdin Antibodies to Visualize Intestinal Tuft Cells in Free-Floating Mouse Jejunum Cryosections. J. Vis. Exp. (2018)
This video illustrates an immunofluorescence-based method for visualizing intestinal tuft cells in free-floating mouse jejunum cryosections. Within the intestinal villi, the co-localization of green fluorescence at the luminal tip with an extended red rootlet mass indicates the presence of tuft cells.
All procedures involving animal models have been reviewed by the local institutional animal care committee and the JoVE veterinary review board.
1. Preparations
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Figure 1: Gelatin filling of jejunum sections for morphological preservation of cryosections
(A) Photographs of procedures for intraluminal filling of mouse jejunum with gelatin. (A1) The beveled tip of an 18.......
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| Name | Company | Catalog Number | Comments |
|---|---|---|---|
| Slc:DDY 6-week-old female mice | Chubu Kagaku Shizai | Not applicable | |
| Disodium hydrogenphosphate 12-water (Na2HPO412H2O) | Wako | 196-02835 | |
| Sodium dihydroenphosphate Dihydrate (NaH2PO42H2O | Wako | 199-02825 | |
| Sodium chloride (NaCl) | Wako | 199-10665 | |
| Triton X-100, Polyoxyethylene(10) octylphenyl ether | Katayama Chemical | Not applicable | |
| Sucrose | Wako | 190-00013 | |
| 10% buffered neutral formalin solution | Muto Chemical | 20215 | Step 1.3. |
| Phalloidin-fluorescent dye conjugate, Alexa Fluor 594 phalloidin | ThermoFisher Scientific | A12381 | |
| Methanol | Nacalai Tesque | 21915-35 | |
| DAPI (4',6-diamidino-2-phenylindole, dihydrochloride) | ThermoFisher Scientific | D1306 | |
| N.N-dimethylformamide (DMF) | Nacalai Tesque | 13015-75 | |
| Bovine serum albumin | Sigma | A9647-10G | |
| 18-gauge stainless steel straight needle | Terumo | NN-1838R | |
| U.S.P. 6-0, 60 cm nylon cut suture, Crownjun | Kono Seisakusho | Not applicable | |
| 22-gauge winged needle | Terumo | SV-22DLK | |
| 20 mL TERUMO syringe | Terumo | SS-20ES | |
| 50 mL centrifuge tube | TPP | 91050 | |
| 15 mL Iwaki centrifuge tubes | Iwaki | 2325-015 | |
| 1.5 mL micro test tube | Star | RSV-MTT1.5 | |
| Gelatin powder, Gelare-blanc | Nitta Biolab | 2809 | |
| Embedding compound for frozen tissue specimen, O.C.T. Compound 118 mL 12 piece | Sakura FineTech | 4583 | |
| Cryomold, CRYO DISH No. 3, 125 piece, well size 20 x 25 x 5 (mm) | Shoei Work's | 1101-3 | |
| Isopentane | Nacalai Tesque | 26404-75 | |
| Falcon cell culture dish 35 x 10mm Easy-Grip | Corning | 353001 | |
| Antigen retrieval solution concentrate, Target Retrieval Solution pH 9 10x | Dako | S2367 | Antigen retrieval solution concentrate in step 4.2.2. |
| Protein Block | Dako | X0909 | Blocking solution in 4.2.5. |
| Phospho-Y1798 girdin (pY1798) antibodies | Immuno-Biological Laboratories (IBL) = Company X | 28143 | Phospho-Y1798 girdin antibodies in step 4.2.6. |
| Goat anti-Rabbit IgG (H+L) Highly Cross-Adsorbed Secondary Antibody, Alexa Fluor 488 | ThermoFisher Scientific | A11034 | |
| Aquous mounting media, Prolong Gold Antifade Mountant | ThermoFisher Scientific | P36930 | |
| Coverslips, Matsunami Micro Cover Glass 22 x 22 mm 100 pcs Thickness No.1 | Matsunami Glass | C022221 | |
| Entellan New, xylene-based mounting media for microscopy | Merck Millipore | 107961 | |
| MAS-coated slide glass white | Matsunami Glass | MI-MAS-01 | |
| Wooden Mappe KO-type | Shoei Work's | 99-40007 | |
| Immersion Oil 518 F Fluorescence Free 20 ml | Zeiss | 444960 | |
| Pipettes, Pipetman P (P2, P20, P200, P1000) | Gilson | F144801, F123600, F123601, F123602 | |
| Ultrapure water production system | Advantec | GS-590 | |
| Plastic glove, Star Nitrile Glove | Star | RSU-NGVM | |
| Cryostat | Leica Microsystems | CM1950 | |
| Deep freezer, SANYO Ultra Low | Sanyo | MDF-382 | |
| Showcase refrigerator | Nihon Freezer | NC-ME50EC | |
| Water bath, Thermominder SDminiN (to dissolve gelatin at 50 C) | Taitec | 0068750-000 | |
| Hybridization incubator (for antigen retrieval at 50 C) | Taitec | HB-100 | |
| Incubation chamber for immunostaining | Cosmo Bio | 10DO | |
| Reciprocal shaker for immunohistochemistry (for room temperature) | Taitec | NR-1 | |
| Reciprocal shaker for immunohistochemistry (for 4 C) | Tokyo Rika Kikai | MMS-3010 | |
| Stereoscopic microscope (for tissue handling) | Olympus | SZ61 | |
| Stereoscopic microscope (for Figure 1B) | Leica Microsystems | M165FC | |
| Fluorescence microscope (for Figure 3) | Nikon | E800 | |
| Confocal laser-scanning microscope | Zeiss | LSM700 |
