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mHypoA-POMC-GFP1 cell line细胞株 BioVector NTCC质粒载体菌种细胞基因保藏中心

  • 价  格:¥989865
  • 货  号:mHypoA-POMC-GFP1
  • 产  地:北京
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mHypoA-POMC-GFP1 cell line细胞株

The mHypoA-POMC/GFP cell lines were generated using a proprietary platform technology enabling the creation of pools of immortalized hypothalamic neurons. These neurons were immortalized from four 8 week old male POMC-GFP mice (mouse 1-4) (strain C57BL/6J-Tg(Pomc-EGFP)1Low/J) hypothalamic primary cultures by retroviral transfer of SV40 T-Ag. These mice contain an eGFP transgene driven by the POMC promoter. The four immortalized hypothalamic pools were sorted on a cell sorting flow cytometer based on GFP fluorescence. Four cell lines representing the heterogeneous population of hypothalamic POMC neurons resulted: mHypoA-POMC/GFP lines 1–4.

These cells have been found to express an ever expanding array of neuropeptides, enzymatic markers and biologically active receptors. As such, these cells enable accurate in-vitro assays for use in the discovery, development and validation of new therapeutics targeted to central-nervous system diseases and disorders, including obesity, stress, and metabolic disorders, amongst others.

mPitA-POMC/GFP-1 was generated from a pool of immortalized pituitary neurons. These neurons were immortalized from 8 week old male POMC-GFP mouse (mouse 1) (strain C57BL/6J-Tg(Pomc-EGFP)1Low/J) pituitary primary cultures by retroviral transfer of SV40 T-Ag. The immortalized pituitary pool was sorted on a cell sorting flow cytometer based on GFP fluorescence as above. A cell line representing the heterogeneous population of POMC expressing pituitary neurons resulted: mPitA-POMC/GFP-1.

This pituitary cell line is easy to culture and has robust gene and protein expression. As such, this adult-derived pituitary cell line enables accurate assays for use in studies of progenitor cell characteristics and modulation, and the molecular analysis of hormone synthesis and secretion in differentiated cells.

Cell culture conditions:
Note: The adult cells typically grow slower when initially thawed than the embryonic mouse hypothalamic cell lines.
The adult cells appear behave more like primary cultures and appropriate attention should be taken to ensure the
successful expansion of the cells.

Note: All cell culture should be conducted in a cell culture hood, with sterile conditions. Standard tissue culture materials
(plates, pipettes etc.) are suitable.
The cells are grown in DMEM with 10% fetal bovine serum (FBS), 25 mM glucose and 1% penicillin/streptomycin and
maintained at 37°C with 5% CO2 (see below). The cells will grow in a monolayer culture, attached to the tissue culture
plate. The cells can be split when they are 70-90% confluent, with a plate ratio of 1:4. Trypsinization is recommended to
obtain single cells in suspension (Wash with 1x phosphate buffered saline (PBS), then add 1x trypsin-EDTA (0.5-1 ml per
100 mm plate) at 37°C for 1-5 min, followed by washing/resuspension in growth medium). Be fairly gentle at this stage to
avoid cell death. It will usually take 2 days for the plate to become confluent again, if the procedure is followed correctly.
These numbers may vary slightly from lab to lab, depending upon technique.

Recommend media requirements:
DMEM: Sigma D5796 (with 4500 mg/L glucose, L-glutamine (0.584 g/L), sodium bicarbonate (3.7 g/L) without sodium pyruvate)
Fetal Bovine Serum (US): BioVector-30-2020
Penicillin/Streptomycin, Liquid: Biochrome AG, A2213, contains 10,000 units of penicillin and 10,000 μg of streptomycin/ml
Trypsin-EDTA: BioVector-15400-054
Cell line thawing:
The cell vial is removed from liquid nitrogen and thawed quickly in a 37°C water bath. The cells are initially incubated in
a 60 mm tissue culture plate in growth medium, as described above.

IMPORTANT NOTE: The same day, after the cells have attached to the plate (approximately 4-6 h), the medium
should be refreshed to remove the DMSO. (If this procedure is not followed and the DMSO is removed the following
day, the cells will likely be dead.)
Cell line freezing:
It is highly recommended to freeze a few aliquots of the cells immediately after the initial growth/split to avoid losing the
cell line. Freezing medium is the same as the growth medium described above, but supplemented with 10% sterile
dimethylsulfoxide (DMSO).
Target concentration of cells is 105
/ml of freezing medium. Cryogenic vials are placed in a NALGENETM Cryo 1°C
Freezing Container overnight in a -80°C freezer. The next day the vials are transferred to a liquid nitrogen tank. It is
recommended to test the cells for regrowth after freezing to be sure that the freezing procedure was performed correctly.
Recommended Conditions for Measuring Marker Expression:
How the total RNA is isolated and treated and the quality of the cDNA kit can affect whether one can reliably detect
transcripts in PCR experiments. It is recommended to use RNA isolation columns from either Qiagen or Life
Technologies to isolate RNA from the cell lines. Use the High Capacity cDNA archive kit made by Applied Biosystems
to make cDNA from at least 1 µg of total RNA. Also, when doing subsequent PCR tests, it is recommended to use the
published primer sets as they have been shown to work (see reference below). Note that expression of the majority of
markers on the screen profile were validated using the Qiagen PCR array for mouse obesity genes (Cat# PAMM-017A).
GFP expression should be measured using an Ab directed against GFP, see the reference below for a specific protocol.
The GFP signal by itself is too weak to detect.

References:
Nazarians-Armavil, Anaies, et al. (2014) Cellular insulin resistance disrupts hypothalamic mHypoA-POMC/GFP
neuronal signaling pathways. Journal of Endocrinology 220.1: 13-24.

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