商品编号


LK002060



品牌


Worthington



公司


Worthington Biochemical Corporation



公司分类


Products



Size

1 bx

商品信息
Hepatocyte Isolation SystemSource: N/AKit for performing five separate adult rat liver perfusions. Contains five single use CLSH enzyme vials, five single use DNase vials, 10X CMF-Hank's Balanced Salt Solution, L-15 Media Powder, 0.15M MOPS buffer,7.5% Sodium Bicarbonate Solution, and optimized protocol. The kit is use-tested by
Worthington
to assure performance.Store at 2-8°C.
Most tr
ADI
tional methods published for isolating hepatocytes use crude and partially purified enzyme preparations including various types of
Collagenase
and other proteases. More recently the use of better characterized preparations of
Collagenase
such as
Worthington
Types 1 and 4 (CLS-1, 4) have provided better results. All crude
Collagenase
preparations can contain lot-variable contaminating proteases, esterases and other enzymes requiring researchers to pre-screen several lots of enzyme and/or continually modify isolation parameters and protocols.
The
Worthington
Hepatocyte Isolation System has been developed to provide researchers with a reliable, convenient, and consistent hepatocyte cell isolation system. By using the pre-optimized combination of enzymes contained in this kit, it is poss
IBL
e to minimize the lot-to-lot variation and improve the quality of the isolated hepatocytes. In addition,
Worthington
use-tests each lot by isolating hepatocytes from adult rat to assure performance, reli
ABI
lity, and consistent yield of viable cells.
The method is based on that described by Berry, M.N., modified by Seglen, P.O. (Methods in Cell
BIOLOG
y, vol XIII, David M. Prescott ed., Academic Press, 1976; Chapter 4, "Preparation of Isolated Rat Liver Cells", pp 29-83), and further optimized in conjunction with several researchers.
St
ABI
lity/Storage
: The reagents are stable at ambient temperatures for the periods of time expected in normal shipping procedures, but the package should be refrigerated upon arrival. Contents may be stored at 2-8°C for 4-6 months before use. Store at 2-8°C.
Package Contents The package contains sufficient materials for five separate adult rat liver perfusions. For larger or smaller tissue applications, prepare proportionate volumes of reagents at each step and combine them in the same ratio as described in the protocol.
Vial #1: 10X CMF-HBSS Concentrate, 1 bottle, 500ml Sterile calcium- and magnesium-free Hank's Balanced Salt Solution (CMF-HBSS). The solution is used for washing and perfusing the liver prior to the addition of the dissociating enzyme solution.
Vial #2: 22,500 Units
Collagenase
and 30 Units Elastase, 5 Vials
Worthington

Collagenase
(Code: CLS-1) and elastase (Code: ESL), filtered through 0.22?m pore size membrane, and lyophilized. Before use, reconstitute with the L-15/MOPS solution and swirl gently to dissolve contents as directed in the following procedure. Store unreconstituted vials at 2–8°C.
Vial #3: 1,000 Units DNase I each, 5 Vials
Worthington
DNase I (Code: D), filtered through 0.22?m pore size membrane, and lyophilized. Before use, reconstitute with L-15/MOPS solution and swirl gently to dissolve contents as directed in the following procedure. Store unreconstituted vials at 2–8°C.
Vial #4: 0.15M MOPS, pH 7.5, 1 bottle, 75ml 0.15M MOPS, pH 7.5 buffer concentrate, used to buffer the reconstituted Leibovitz L-15 media. Vial #5: 7.5% Sodium Bicarbonate (NaHCO3), 1 bottle, 100ml 7.5% Sodium bicarbonate concentrate, used to buffer the diluted CMF-HBSS.
Pouch, containing Leibovitz L-15 Media Powder, 1 x 1L Reconstitute entire contents of pouch by cutting open top of envelope and pouring contents into beaker containing approximately 800ml of cell culture grade water. Rinse pouch 2 - 3 times with an additional 100ml water. Bring total volume to 1000ml and filter through a 0.22 micron pore size membrane.
References
Alpini et al., "Recent Advances in the Isolation of Liver Cells", Hepatology (1994) 20:494-514.
Berry, M.N., Edwards, A.M., and Barritt, G.J.; Isolated Hepatocytes: Preparation, Properties and Applications, RH Burdon and PH Van Knippenberg, eds., Elsevier, Amsterdam, New York, Oxford, Chapt. 2, 1991.
Chen H-L, Wu H-l, Fon C-C, Chen P-J, Lai, M-Y, Chen D-S (1998) Long-term culture of hepatocytes from human adults. Biomedical Science 5:435-440
DeRobertis, E.D.P., Saez, F.A. and DeRobertis, E.M.F.: Cell
BIOLOG
y, 6th ed., W.B. Saunders Co., Philadelphia, PA, 1975.
Freshney, R. Ian: Culture of Animal Cells, Alan R. Liss, Inc., New York, 2000.
Hanks, J.H., and Wallace, R.E.: Proc. Soc. Exp. Biol. Med., 71, 196 1949.
Jakoby, W.B., and Pastan, I.H.: Methods in Enzymology Vol. LVIII p. 121, Academic Press, 1979.
Le Cluyse EL (2001) Human hepatocyte systems for the in vitro evaluation of cytochrome P450 enzyme expression and regulation. Eur. J Pharm Sci 13:343-368.
Le Cluyse EL, PL Bullock, A Parkinson (1996) Strategies for restoration and maintenance of normal hepatic structure and function in long-term cultures of rat hepatocytes. Adv. Drug Del Rev 22:133-186.
Leibovitz, A.: The Growth and Maintenance of Tissue/Cell Cultures in Free Gas Exchange with the Atmosphere, Am. J. Hyg., 78, 173, 1963.
Seglen, P.O., Methods in Cell
BIOLOG
y, Vol. XIII, David M. Prescott ed., Ch. 4, pp. 29-83, Academic Press, 1976.
Worthington
Enzyme Manual,
Worthington
Biochemical Corp., Freehold, NJ, 1993.
Worthington
Tissue Dissociation Guide, Worthington Biochemical Corp., Lakewood, NJ, 2003.?
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