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This protocol attempts to establish a repeatable protocol for primary neurons and glia isolation from rat bladder for further cellular experiments.
The lower urinary tract has two main functions, namely, periodic urine storage and micturition; these functions are mediated through central and peripheral neuroregulation. Although extensive research on the lower urinary tract nervous system has been conducted, most studies have focused on primary culture. This protocol introduces a method for the isolation and culture of bladder neurons and glia from Sprague–Dawley rats. In this method, the neurons and glia were incubated in a 37 °C, 5% CO2 incubator for 5–7 days. As a result, they grew into mature shapes suitable for related subsequent immunofluorescence experiments. Cells were morphologically observed using an optical microscope. Neurons, synaptic vesicles, and glia were identified by β-III-tubulin and MAP-2, Synapsin-1, and GFAP staining, respectively. Meanwhile, immunocytochemistry was performed on several neurotransmitter-related proteins, such as choline acetyltransferase, DYNLL2, and SLC17A9.
The lower urinary tract has two main functions: periodic urine storage and micturition1. The lower urinary tract nervous system (LUTNS) controls these functions and is delicate and susceptible to many neuropathies, which can be innate (porphyria), acquired (Lyme disease), secondary to disease states (diabetic cystopathy), drug induced (hemorrhagic cystitis), surgery caused (abdominoperineal resection), or injury caused (traumatic spinal cord injury)2,3,4,5,6,
All experimental protocols and animal procedures complied with the ethical principle guidelines of the National Research Council.
1. Preparation of materials
In the process of primary cell culture, the cells acquired were round with bright and clear boundaries before the attached state. As the neurons grew, dendrites and axons started to be distinct. After 5–7 days of culture, the neurons reached a mature form with long projections, which were ideal for imaging or function studies. Although most of the impurities and cell debris could be removed due to changing media, certain residuals attached to poly-D-lysine and laminin coating were visible (Figu.......
Plate Preparation
The use of glass coverslips in 6-, 12-, or 48-well culture plates for immunofluorescent or calcium imaging experiments is an economical and sample-sparing operation. Cells grow well in plates without coverslips during the preparation of primary cell cultures. Therefore, coverslips are dispensable in experiments, such as Western blot or polymerase chain reaction. Furthermore, coating is a necessary step before plating cells, with or without coverslips. Laminin and poly-D-lysine are.......
This study was supported by the National Natural Science Foundation of China (Grant no. 81673676) and Dongguan Science and Technology Bureau (Grant no. 2019622101002). The authors thank Dr. Maryrose Sullivan (Assistant Professor in Surgery, Harvard Medical School) for technical consulting.
....Name | Company | Catalog Number | Comments |
0.25% trypsin | Gibico | 15050065 | Enzyme digestion |
48-well culture plate | Corning | 3548 | Coating dish |
antibiotic/antimycotic | Gibico | 15240062 | Culture media/Rinse media |
Anti-Glial Fibrillary Acidic Protein Antibody | Santa Cruz | sc-33673 | ICC |
B-27 | Gibico | 17504044 | Culture media |
BSA Fraction V | Gibico | 332 | Enzyme digestion |
Choline Acetyltransferase Antibody | Abcam | ab18736 | ICC |
CO2 Incubator | Heraeus | B16UU | Cells culture |
Collagenase type II | Sigma | 2593923 | Enzyme digestion |
DMEM/F-12 | Gibico | 11330032 | Rinse media |
DYNLL2 Antibody | Santa Cruz | sc-13969 | ICC |
Fetal Bovine Serum | Gibico | 10100147 | Culture media/Rinse media |
Forceps | Shanghai Jin Zhong Medical Devices | 1383 | 10 cm; Sterile operation |
Glass breakers | Huan Qiu Medical Devices | 1101 | 50 ml; Sterile operation |
Glass coverslips | WHB Scientific | WHB-48-CS | Coating dish |
Glass dishes | Huan Qiu Medical Devices | 1177 | 100 mm; Sterile operation |
Goat Anti-Rat IgG(H+L), Mouse ads-Alexa Fluor 488 | Southernbiotech | 3050-30 | ICC |
Goat Anti-Rat IgG(H+L), Mouse ads-Alexa Fluor 555 | Southernbiotech | 3050-30 | ICC |
Hoechst 33342 | BD | 561908 | ICC |
Laminar flow bench | Su Jie Medical Devices | CB 1400V | Sterile operation |
Laminin | Sigma | L2020 | Coating dish |
L-glutamine | Gibico | 25030081 | Culture media |
MAP-2 Antibody | Affinity | AF5156 | ICC |
Murine GDNF | Peprotech | AF45044 | Culture media |
Neurobasal-A Medium | Gibico | 10888022 | Culture media |
Ophthalmic scissors | Shanghai Jin Zhong Medical Devices | J21010 | 12.5 cm; Sterile operation |
Pipettes | Eppendorf | 3120000240 | 100-1000 ul; Reagent and sample pipetting |
Pipettes | Eppendorf | 3120000267 | 10-100 ul; Reagent and sample pipetting |
Poly-D-lysine | Sigma | P7280 | Coating dish |
Refrigerated centrifuge | Ping Fan Instrument | TGL-16A | Enzyme digestion |
Shaking incubator | Haimen Kylin-Bell Lab Instruments | T8-1 | Enzyme digestion |
SLC17A9 Antibody | MBL International | BMP079 | ICC |
Spoons nucleus divider | Shanghai Jin Zhong Medical Devices | YZR030 | 12 cm; Sterile operation |
Substance P Antibody | Santa Cruz | sc-58591 | ICC |
Surgical scissors | Shanghai Jin Zhong Medical Devices | J21130 | 16 cm; Sterile operation |
Surgical towel | Fu Kang Medical Devices | 5002 | 40 x 50 cm; Sterile operation |
Synapsin-1 Antibody | CST | 5297T | ICC |
Tubulin beta Antibody(β-III-tubulin) | Affinity | AF7011 | ICC |
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