Name: isolation and culture of human fungiform taste papillae cells
Uploaded: 2012-05-17T12:00:00
Description: Watch this Scientific Journal Video about Isolation and Culture of Human Fungiform Taste Papillae Cells at JoVE.com

نشكر ايمي مايرز وQuayson ESI للمهارات الفنية والمساعدة. وأيد هذا العمل في جزء من جبهة الخلاص الوطني 0216310 وGivaudan منح شركة (المجموع).

1. الحصول على الإنسان النتوئات طعم كمئي <ol style=";text-align:right;direction:rtl"><li style=";text-align:right;direction:rtl"> إزالة 4-8 طعم كمئي الإنسان الحليمات من السطح الظهري للجزء الأمامي من اللسان باستخدام microscissors ربيع المنحني. </li><li style=";text-align:right;direction:rtl"> المكان على الفور الى حل العزلة (26 NaHCO 3 مم،</...

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لقد حافظنا على الخلايا التي تم الحصول عليها من الإنسان كمئي حليمات التذوق لأكثر من 8 ممرات، والذي يمتد لفترة 12 شهرا. هذه الثقافات توليد خلايا جديدة، وكثير منها تنضج في المختبر إلى المرحلة حيث أنها تعبر عن العديد من علامات النضج أنواع طعم الخلية برعم، بالإضافة إل?...

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isolation and culture of human fungiform taste papillae cells

Taste cells are highly specialized, with unique histological, molecular and physiological characteristics that permit detection of a wide range of simple stimuli and complex chemical molecules contained in foods. In human, individual fungiform papillae contain from zero to as many as 20 taste buds. There is no established protocol for culturing human taste cells, although the ability to maintain taste papillae cells in culture for multiple cell cycles would be of considerable utility for characterizing the molecular, regenerative, and functional properties of these unique sensory cells. Earlier studies of taste cells have been done using freshly isolated cells in primary culture, explant cultures from rodents, or semi-intact taste buds in tissue slices1,2,3,4. Although each of these preparations has advantages, the development of long-term cultures would have provided significant benefits, particularly for studies of taste cell proliferation and differentiation. Several groups, including ours, have been interested in the development and establishment of taste cell culture models. Most attempts to culture taste cells have reported limited viability, with cells typically not lasting beyond 3-5 d5,6,7,8. We recently reported on a successful method for the extended culture of rodent taste cells9. We here report for the first time the establishment of an in vitro culture system for isolated human fungiform taste papillae cells. Cells from human fungiform papillae obtained by biopsy were successfully maintained in culture for more than eight passages (12 months) without loss of viability. Cells displayed many molecular and physiological features characteristic of mature taste cells. Gustducin and phospholipase C &beta;2, (PLC-&beta;2) mRNA were detected in many cells by reverse transcriptase-polymerase chain reaction and confirmed by sequencing. Immunocytochemistry analysis demonstrated the presence of gustducin and PLC-&beta;2 expression in cultured taste cells. Cultured human fungiform cells also exhibited increases in intracellular calcium in response to appropriate concentrations of several taste stimuli indicating that taste receptors and at least some of the signalling pathways were present. These results sufficient indicate that taste cells from adult humans can be generated and maintained for at least eight passages. Many of the cells retain physiological and biochemical characteristics of acutely isolated cells from the adult taste epithelium to support their use as a model taste system. This system will enable further studies of the processes involved in proliferation, differentiation and function of mammalian taste receptor cells in an in vitro preparation.
Human fungiform taste papillae used for establishing human fungiform cell culture were donated for research following proper informed consent under research protocols that were reviewed and approved by the IRB committee. The protocol (#0934) was approved by Schulman Associates Institutional Review Board Inc., Cincinnati, OH. Written protocol below is based on published parameters reported by Ozdener et al. 201110.

Watch this Scientific Journal Video about Isolation and Culture of Human Fungiform Taste Papillae Cells at JoVE.com

Isolation and Culture of Human Fungiform Taste Papillae Cells

نحن تهدف لوضع بروتوكول للتكرار لعزل والمحافظة عليها على المدى الطويل الثقافات من الخلايا البشرية كمئي حليمات الذوق. واستمرت بنجاح من خلايا الحليمات كمئي الإنسان التي تم الحصول عليها بواسطة الخزعة في ثقافة لأكثر من ثمانية ممرات (12 شهرا) دون فقدان للحيوية.

العزلة والثقافة من خلايا الإنسان حليمات كمئية طعم

Taste cells are highly specialized, with unique histological, molecular and physiological characteristics that permit detection of a wide range of simple ...

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Neuroscience

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