Name: transformation of probiotic yeast and their recovery from gastrointestinal immune tissues following oral gavage in mice
Uploaded: 2016-02-08T14:00:00
Description: Watch this Scientific Journal Video about Transformation of Probiotic Yeast and Their Recovery from Gastrointestinal Immune Tissues Following Oral Gavage in Mice at JoVE.com

Авторы признают финансирование через Детского Центра иммунологии и вакцинам и NIH Нью Новатор премии (1DP2AI112242-01) присуждена Трейси Дж Агнца. Авторы также благодарят Наталью П. Дегтярева за щедрое вклада Rad1 S. CEREVISIAE.

1. УФ мутагенеза для генерации Ауксотрофные штаммов дрожжей <ol><li> Создать кривые выживаемости определение необходимой дозы УФ-облучения <ol><li> Подготовьте YPD (дрожжевой экстракт пептон декстроза) носитель и другие реагенты, перечисленные в таблице 1, в соответствии со стандарт?...

<ol>
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Вместе протоколы в данном документе описываются основные шаги, необходимые для разработки и тестирования ауксотрофных пробиотических штаммов дрожжей для доставки гетерологичной терапевтического белка в кишечнике. Эта манипуляция и тестирование рекомбинантного пробиотика дрожжей ...

<table border="0" cellpadding="0" cellspacing="0" width="704">
	<tbody>
		<tr height="63">
			<td height="63" style="height:63px;width:216px;">SmartSpec 3000 Spectrophotometer</td>
			<td style="width:107px;">BioRad</td>
			<td style="width:107px;">170-2501</td>
			<td style="width:275px;">Example of spectrophotometer for determining cell concentration and OD600 of yeast cultures</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">New Brunswick Roller Drum</td>
			<td style="width:107px;">Eppendorf</td>
			<td style="width:107px;">M1053-4004</td>
			<td style="width:275px;">Example of roller drum for yeast culture incubation</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">UV Stratalinker 2400</td>
			<td style="width:107px;">Stratagene</td>
			<td style="width:107px;">400075-03</td>
			<td style="width:275px;">Example stratalinker</td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:216px;">Stuart Colony Counter SC6PLUS</td>
			<td style="width:107px;">11983044</td>
			<td style="width:107px;">Fisher Scientific</td>
			<td style="width:275px;">Plate stand with magnification records colony count upon sensing pressure from pen</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Scienceware Colony Counter&#160;</td>
			<td style="width:107px;">F378620002</td>
			<td style="width:107px;">Bel-Art Scienceware</td>
			<td style="width:275px;">Hand held colony counter pen</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Replica plating device</td>
			<td style="width:107px;">Fisherbrand</td>
			<td>09-718-1</td>
			<td rowspan="2" style="width:275px;">Example of replica plating stand and pads&#160;</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Velveteen squares</td>
			<td style="width:107px;">Fisherbrand</td>
			<td>09-718-2</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">&#160;L shaped sterile cell spreaders&#160;</td>
			<td style="width:107px;">Fisherbrand</td>
			<td style="width:107px;">14665230</td>
			<td style="width:275px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Deoxyribonucleic acid, single stranded from salmon testes</td>
			<td style="width:107px;">Sigma-Aldrich</td>
			<td style="width:107px;">D7656-1ML</td>
			<td style="width:275px;">Example carrier DNA for yeast LiOAc transformation</td>
		</tr>
		<tr height="126">
			<td height="126" style="height:126px;width:216px;">Gavage needles</td>
			<td style="width:107px;">Braintree Scientific</td>
			<td style="width:107px;">N-PK&#160;002</td>
			<td style="width:275px;">For mice 15-20 g, the suggested needle is a 22 gauge (1.25 mm ball), 1 in long, straight reusable gavage needle. For mice weighing greater than 20 g, 20 gauge or larger straight or curved gavage needles may be used</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">1mL sterile slip-tip disposable tuberculin syringe&#160;</td>
			<td style="width:107px;">Becton Dickinson</td>
			<td style="width:107px;">BD 309659</td>
			<td style="width:275px;"></td>
		</tr>
		<tr height="84">
			<td height="84" style="height:84px;width:216px;">Blunt forceps such as Electron Microscopy Sciences 7&#34; (178 mm) serrated tip, broad grip forceps</td>
			<td style="width:107px;">Electron Microscopy Sciences</td>
			<td style="width:107px;">77937-28</td>
			<td style="width:275px;">Example of blunt forceps needed for dissection&#160;</td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:216px;">Straight and curved dissection scissors&#160;</td>
			<td style="width:107px;">Electron Microscopy Sciences&#160;</td>
			<td style="width:107px;">72966-02 and 72966-03</td>
			<td style="width:275px;">Examples of scissors needed for dissection&#160;</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">IMDM</td>
			<td style="width:107px;">Life technologies</td>
			<td style="width:107px;">12440053</td>
			<td style="width:275px;"></td>
		</tr>
	</tbody>
</table>

transformation of probiotic yeast and their recovery from gastrointestinal immune tissues following oral gavage in mice

Development of recombinant oral therapy would allow for more direct targeting of the mucosal immune system and improve the ability to combat gastrointestinal disorders. Adapting probiotic yeast in particular for this approach carries several advantages. These strains have not only the potential to synthesize a wide variety of complex heterologous proteins but are also capable of surviving and protecting those proteins during transit through the intestine. Critically, however, this approach requires expertise in many diverse laboratory techniques not typically used in tandem. Furthermore, although individual protocols for yeast transformation are well characterized for commonly used laboratory strains, emphasis is placed here on alternative approaches and the importance of optimizing transformation for less well characterized probiotic strains. Detailing these methods will help facilitate discussion as to the best approaches for testing probiotic yeast as oral drug delivery vehicles and indeed serve to advance the development of this novel strategy for gastrointestinal therapy.

Генерация кривой выживаемости следующей УФ-облучения требует металлизацию разбавленных дрожжевых клеток таким образом, что различные колониеобразующих единиц (КОЕ) способны образовывать. Каждый образец 500 мкл собирали, как описано выше, содержит около 5 х 10 6 кл...

Watch this Scientific Journal Video about Transformation of Probiotic Yeast and Their Recovery from Gastrointestinal Immune Tissues Following Oral Gavage in Mice at JoVE.com

Transformation of Probiotic Yeast and Their Recovery from Gastrointestinal Immune Tissues Following Oral Gavage in Mice

Представленные здесь единое описание методов, которые могут быть использованы для разработки, преобразования, администрировать и проверить гетерологичный экспрессию белка пробиотических дрожжей сахаромицеты буларди.

Трансформация пробиотических дрожжей и их восстановление из желудочно-иммунных тканей После желудочный зонд у мышей

Development of recombinant oral therapy would allow for more direct targeting of the mucosal immune system and improve the ability to combat ...

Research

JoVE Journal

Immunology and Infection

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DNA adducts and oxidized DNA bases are examples of DNA lesions that are useful biomarkers for the toxicity assessment of substances that are ...