AFT024 ATCC ® SCRC-1007™ Mus musculus This cell line, immor

Permits and Restrictions	View Permits
Organism	Mus musculus, mouse
Tissue	Liver; Stroma
Cell Type	Fibroblast SV40 immortalized, SV40 transformed
Product Format	frozen
Morphology	Fibroblast
Culture Properties	Adherent
Biosafety Level	2 [Cells contain SV-40 Viral DNA sequences] Appropriate safety procedures should always be used with this material. Laboratory safety is discussed in the following publication: *Biosafety in Microbiological and Biomedical Laboratories*, 5th ed. HHS Publication No. (CDC) 93-8395. U.S. Department of Health and Human Services, Centers for Disease Control and Prevention. Washington DC: U.S. Government Printing Office (2007). The entire text is available online at http://www.cdc.gov/biosafety/publications/bmbl5/index.htm.
Age	14 to 14.5 day gestation embryo
Applications	SCRC-1007 can serve as a support layer for stem cells at 37°C; however, to insure that all AFT024 cells are mitotically inactive, irradiation or Mitomycin C treatment is recommended.
Storage Conditions	liquid nitrogen vapor phase

Derivation	This cell line, immortalized with temperature sensitive SV-40 T antigen, was derived from murine fetal liver stromal cells. They represent cells obtained from the microenvironment of the liver that support purified mouse and human CD34+CD38- hematopoietic stem/progenitor cells.
Comments	These cells represent cells obtained from the microenvironment of the liver that support purified mouse and human CD34+CD38- hematopoietic stem/progenitor cells. Delta-like (Dlk1) /preadipocyte factor-1 (pref-1) is preferentially expressed in AFT024 cells and functions as a positive stem cell regulator. Due to the presence of the temperature sensitive SV40 T antigen, the AFT024 cells must be grown at 33°C. At 33°C, T antigen binds anti-oncogenes and allows cell division. At higher temperatures, such as 37°C, T antigen is inactivated and the cells can no longer divide.

Derivation

This cell line, immortalized with temperature sensitive SV-40 T antigen, was derived from murine fetal liver stromal cells. They represent cells obtained from the microenvironment of the liver that support purified mouse and human CD34+CD38- hematopoietic stem/progenitor cells.

Comments

These cells represent cells obtained from the microenvironment of the liver that support purified mouse and human CD34+CD38- hematopoietic stem/progenitor cells. Delta-like (Dlk1) /preadipocyte factor-1 (pref-1) is preferentially expressed in AFT024 cells and functions as a positive stem cell regulator. Due to the presence of the temperature sensitive SV40 T antigen, the AFT024 cells must be grown at 33°C. At 33°C, T antigen binds anti-oncogenes and allows cell division. At higher temperatures, such as 37°C, T antigen is inactivated and the cells can no longer divide.

Complete Growth Medium	The base medium for this cell line is ATCC-formulated Dulbecco's Modified Eagle's Medium, Catalog No. 30-2002. To make the complete growth medium, add the following components to the base medium: 2-mercaptoethanol to a final concentration of 0.05 mM; fetal bovine serum to a final concentration of 10%.
Subculturing	Volumes used in this protocol are for 75 cm² flask; proportionally reduce or increase amount of dissociation medium for culture vessels of other sizes. Remove and discard culture medium. Briefly rinse the cell layer with 1X PBS (Ca⁺²/Mg⁺²-free, ATCC SCRR-2201) to remove all traces of serum that contains trypsin inhibitor. Add 2.0 to 3.0 mL of 0.25% (w/v) Trypsin / 0.53 mM EDTA solution to flask and observe cells under an inverted microscope until cell layer is dispersed (usually within 5 to 15 minutes). Note: To avoid clumping do not agitate the cells by hitting or shaking the flask while waiting for the cells to detach. Cells that are difficult to detach may be placed at 33°C to facilitate dispersal. Add 6.0 to 8.0 mL of complete growth medium and aspirate cells by gently pipetting. Add appropriate aliquots of cell suspension to new culture vessels. Subcultivation ratio: 1:4 –1:8 Place culture vessels in incubators at 33°C. Note: For more information on enzymatic dissociation and subculturing of cell lines consult Chapter 10 in Culture of Animal Cells, a manual of Basic Technique by R. Ian Freshney, 3rd edition, published by Alan R. Liss, N.Y., 1994. Medium Renewal Two to three times weekly
Cryopreservation	Complete growth medium supplemented with 5% (v/v) DMSO
Culture Conditions	Atmosphere: Air, 95%; carbon dioxide (CO₂), 5% Temperature: 33°C Max Temperature: 33°C Min Temperature: 31°C

Population Doubling Time	40 to 48 hrs

Name of Depositor	KA Moore
References	Moore KA, et al. Hematopoietic activity of a stromal cell transmembrane protein containing epidermal growth factor-like repeat motifs. Proc. Natl. Acad. Sci. USA 94: 4011-4016, 1997. PubMed: 9108096 Miller JS, et al. Single adult human CD34(+)/Lin-/CD38(-) progenitors give rise to natural killer cells, B-lineage cells, dendritic cells, and myeloid cells. Blood 93: 96-106, 1999. PubMed: 9864151 Moore KA, et al. In vitro maintenance of highly purified, transplantable hematopoietic stem cells. Blood 89: 4337-4347, 1997. PubMed: 9192756 Hachney JA, et al. A molecular profile of a hematopoietic stem cell niche. Proc. Natl. Acad. Sci. USA 99: 13061-13066, 2002. PubMed: 12226475 Punzel M, et al. The myeloid-lymphoid initiating cell (ML-IC) assay assesses the fate of multipotent human progenitors in vitro. Blood 93: 3750-3756, 1999. PubMed: 10339481 Thiemann FT, et al. The murine stromal cell line AFT024 acts specifically on human CD34+CD38- progenitors to maintain primitive function and immunophenotype in vitro. Exp. Hematol. 26: 612-619, 1998. PubMed: 9657136 Lewis ID, et al. Umbilical cord blood cells capable of engrafting in primary, secondary, and tertiary xenogeneic hosts are preserved after ex vivo culture in a noncontact system. Blood 97: 3441-3449, 2001. PubMed: 11369635

Name of Depositor

KA Moore

References

Moore KA, et al. Hematopoietic activity of a stromal cell transmembrane protein containing epidermal growth factor-like repeat motifs. Proc. Natl. Acad. Sci. USA 94: 4011-4016, 1997. PubMed: 9108096

Miller JS, et al. Single adult human CD34(+)/Lin-/CD38(-) progenitors give rise to natural killer cells, B-lineage cells, dendritic cells, and myeloid cells. Blood 93: 96-106, 1999. PubMed: 9864151

Moore KA, et al. In vitro maintenance of highly purified, transplantable hematopoietic stem cells. Blood 89: 4337-4347, 1997. PubMed: 9192756

Hachney JA, et al. A molecular profile of a hematopoietic stem cell niche. Proc. Natl. Acad. Sci. USA 99: 13061-13066, 2002. PubMed: 12226475

Punzel M, et al. The myeloid-lymphoid initiating cell (ML-IC) assay assesses the fate of multipotent human progenitors in vitro. Blood 93: 3750-3756, 1999. PubMed: 10339481

Thiemann FT, et al. The murine stromal cell line AFT024 acts specifically on human CD34+CD38- progenitors to maintain primitive function and immunophenotype in vitro. Exp. Hematol. 26: 612-619, 1998. PubMed: 9657136

Lewis ID, et al. Umbilical cord blood cells capable of engrafting in primary, secondary, and tertiary xenogeneic hosts are preserved after ex vivo culture in a noncontact system. Blood 97: 3441-3449, 2001. PubMed: 11369635

Permits	These permits may be required for shipping this product: Customers located in the state of Hawaii will need to contact the Hawaii Department of Agriculture to determine if an Import Permit is required. A copy of the permit or documentation that a permit is not required must be sent to ATCC in advance of shipment.
Basic Documentation	Product Sheet Certificate of Analysis MSDS
References	Moore KA, et al. Hematopoietic activity of a stromal cell transmembrane protein containing epidermal growth factor-like repeat motifs. Proc. Natl. Acad. Sci. USA 94: 4011-4016, 1997. PubMed: 9108096 Miller JS, et al. Single adult human CD34(+)/Lin-/CD38(-) progenitors give rise to natural killer cells, B-lineage cells, dendritic cells, and myeloid cells. Blood 93: 96-106, 1999. PubMed: 9864151 Moore KA, et al. In vitro maintenance of highly purified, transplantable hematopoietic stem cells. Blood 89: 4337-4347, 1997. PubMed: 9192756 Hachney JA, et al. A molecular profile of a hematopoietic stem cell niche. Proc. Natl. Acad. Sci. USA 99: 13061-13066, 2002. PubMed: 12226475 Punzel M, et al. The myeloid-lymphoid initiating cell (ML-IC) assay assesses the fate of multipotent human progenitors in vitro. Blood 93: 3750-3756, 1999. PubMed: 10339481 Thiemann FT, et al. The murine stromal cell line AFT024 acts specifically on human CD34+CD38- progenitors to maintain primitive function and immunophenotype in vitro. Exp. Hematol. 26: 612-619, 1998. PubMed: 9657136 Lewis ID, et al. Umbilical cord blood cells capable of engrafting in primary, secondary, and tertiary xenogeneic hosts are preserved after ex vivo culture in a noncontact system. Blood 97: 3441-3449, 2001. PubMed: 11369635

Permits

These permits may be required for shipping this product:

Customers located in the state of Hawaii will need to contact the Hawaii Department of Agriculture to determine if an Import Permit is required. A copy of the permit or documentation that a permit is not required must be sent to ATCC in advance of shipment.

Basic Documentation

Product Sheet

Certificate of Analysis

MSDS

References

Moore KA, et al. Hematopoietic activity of a stromal cell transmembrane protein containing epidermal growth factor-like repeat motifs. Proc. Natl. Acad. Sci. USA 94: 4011-4016, 1997. PubMed: 9108096

Miller JS, et al. Single adult human CD34(+)/Lin-/CD38(-) progenitors give rise to natural killer cells, B-lineage cells, dendritic cells, and myeloid cells. Blood 93: 96-106, 1999. PubMed: 9864151

Moore KA, et al. In vitro maintenance of highly purified, transplantable hematopoietic stem cells. Blood 89: 4337-4347, 1997. PubMed: 9192756

Hachney JA, et al. A molecular profile of a hematopoietic stem cell niche. Proc. Natl. Acad. Sci. USA 99: 13061-13066, 2002. PubMed: 12226475

Punzel M, et al. The myeloid-lymphoid initiating cell (ML-IC) assay assesses the fate of multipotent human progenitors in vitro. Blood 93: 3750-3756, 1999. PubMed: 10339481

Thiemann FT, et al. The murine stromal cell line AFT024 acts specifically on human CD34+CD38- progenitors to maintain primitive function and immunophenotype in vitro. Exp. Hematol. 26: 612-619, 1998. PubMed: 9657136

Lewis ID, et al. Umbilical cord blood cells capable of engrafting in primary, secondary, and tertiary xenogeneic hosts are preserved after ex vivo culture in a noncontact system. Blood 97: 3441-3449, 2001. PubMed: 11369635

AFT024 (ATCC® SCRC-1007™)

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AFT024 (ATCC^® SCRC-1007^™)