Larval Ring Drüsensektion: Isolierung der entwicklungsfreien endokrinen Organe von Drosophila
Published: April 30, 2023
Abstract
Quelle: Imura, E., et al. Protokolle zur Visualisierung steroidogener Organe und ihrer interaktiven Organe mit Immunostainierung in der Fruchtfliege Drosophila melanogaster. J. Vis. (2017).
Dieses Video beschreibt die Drosophila-Ringdrüse, eine komplexe endokrine Struktur, die für die Biosynthese und Sekretion von Ekdysteroiden und anderen Hormonen wichtig ist. Das vorgestellte Protokoll demonstriert seine Zerlegung, Fixierung und Immunfärbung.
Protocol
Dieses Protokoll ist ein Auszug aus Imura et al.,Protokolle zur Visualisierung steroidogener Organe und ihrer interaktiven Organe mit Immunostainierung in der Fruchtfliege Drosophila melanogaster, J. Vis. Exp. (2017). HINWEIS: Das Gesamtschema der Protokolle ist in Abbildung 1dargestellt. 1. Die Zerlegung der Larval Ringdrüse (RG) HINWEIS:</s…
Representative Results
Abbildung 1: Das Gesamtschema der Protokolle. Je nach Zweck der Experimente sind zwei unterschiedliche Seziermethoden auf Larven und erwachsene Weibchen anwendbar. Die Montagemethoden werden auch nach Probenbedingungen entwickelt. Befestigungs-, Färbe- und Bildgebungstechniken sind grundsätzlich in allen Proben üblich. Bitte klicke…
Materials
| Egg collection | |||
| tissue culture dish (55 mm) | AS ONE | 1-8549-02 | for grape-juice agar plates |
| collection cup | HIKARI KAGAKU | ||
| yeast paste | Oriental dry yeast, Tokyo | ||
| 100% grape juice | Welch Food Inc. | ||
| rearing larvae | |||
| small vials (12ml, 40×23.5 mm, PS) | SARSTEDT | 58.487 | |
| disposable loop | AS ONE | 6-488-01 | |
| standard fly food | The recipe is on the website of Bloomington stock center. | ||
| Dissection | |||
| dissecting microscope | Carl Zeiss | Stemi 2000-C | |
| dissecting microscope | Leica | S8 AP0 | |
| tissue culture dish (35 x 10 mm, non-treated) | IWAKI | 1000-035 | |
| Sylgard | TORAY | coarting silicon inside dishes | |
| Terumo needle (27G, 0.40 x 19 mm) | TERUMO | NN-2719S | A "knife" to cut the tissue |
| forceps, Inox, #5 | Dumont, Switzerland | ||
| insect pin (0.18 mm in diameter) | Shiga Brand | for fillet dissection | |
| micro scissors | NATSUME SEISAKUSHO CO LTD. | MB-50-10 | |
| Fixation | |||
| ultrapure water | Merck Millipore | ||
| phosphate buffered saline (PBS) | |||
| Formaldehyde | Nacalai tesque | 16222-65 | |
| Paraformaldehyde | Nacalai tesque | 02890-45 | |
| Triton-X100 | Nacalai tesque | 35501-15 | |
| microtubes (1.5 ml) | INA OPTIKA | CF-0150 | |
| Incubation | |||
| As one swist mixer TM-300 (rocker) | As one | TM-300 | rocker |
| Bovine Serum Albumin | SIGMA | 9048-46-8 | |
| Primary antibody | |||
| anti-Sro (guinea pig), 1:1000 | |||
| anti-GFP (rabbit), 1:1000 | Molecular Probes | A6455 | Shimada-Niwa ans Niwa, 2014 |
| anti-GFP (mouse mAb, GF200), 1:100 | Nakarai tesque | 04363-66 | |
| anti-5HT (rabbit), 1:500 | SIGMA | S5545 | |
| anti-Hts 1B1 (mouse) | Developmental Studies Hybridoma Bank (DSHB) | 1B1 | |
| anti-DE-cadherin (rat), 1:20 | DSHB | DCAD2 | |
| anti-nc82 (mouse), 1:50 | DSHB | nc82 | |
| Secondary antibody | |||
| Goat anti-Rabbit IgG (H+L) Secondary Antibody, Alexa Fluor 488 conjugate | Life Technologies | A-11008 | |
| Goat anti-Mouse IgG (H+L) Secondary Antibody, Alexa Fluor 488 conjugate | Life Technologies | A-11001 | |
| Goat anti-Rat IgG (H+L) Secondary Antibody, Alexa Fluor 546 conjugate | Life Technologies | A-11081 | |
| Goat anti-Guinea Pig IgG (H+L) Secondary Antibody, Alexa Fluor 555 conjugate | Life Technologies | A-21435 | |
| Alexa Fluor 546 dye-conjugated phalloidin | Life Technologies | A-22283 | |
| Mounting reagents | |||
| Micro slide glass | Matsunami Glass Ind.,Ltd. | SS7213 | |
| Square microscope cover glass | Matsunami Glass Ind.,Ltd. | C218181 | |
| FluorSave reagent (Mounting reagent) | Calbiochem | 345789 | |
| Transfer pipette 1 ml (Disposable dropper) | WATSON | 5660-222-1S | |
| Fly stocks | |||
| w; GMR45C06-GAL4 | from Bloomington Drosophila Stock Center. (#46260) | ||
| UAS–GFP; UAS–mCD8::GFP | gifts from K. Ito, The University of Tokyo. | ||
| w[1118] | |||
| w; phantom-GAL4#22/UAS-turboRFP | |||
| w; UAS-mCD8::GFP; TRH-GAL4 | Li, H. H. (2014) and Alekseyenko, O. V, Lee, C. & Kravitz, E. A. (2010) | ||
| w; UAS-mCD8::GFP | from Bloomington Drosophila Stock Center. (#32188) | ||
| yw;; nSyb-GAL4 | from Bloomington Drosophila Stock Center. (#51941) |
Cite This Article
Larval Ring Gland Dissection: Isolation of Developmental Endocrine Organs from Drosophila. J. Vis. Exp. (Pending Publication), e20145, doi: (2023).