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Stat3fl fl

Manufactured by Jackson ImmunoResearch

The Stat3fl/fl is a laboratory reagent designed for gene targeting and genetic manipulation. It is a genetic construct that contains loxP sites flanking the Stat3 gene, allowing for conditional knockout or deletion of the Stat3 gene in target cells or tissues through the use of Cre recombinase. The core function of the Stat3fl/fl is to provide a tool for researchers to study the role of the Stat3 gene in various biological processes.

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9 protocols using stat3fl fl

1

Genetically Modified Mouse Models for Immunological Studies

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C57BL/6J (B6),
Prdm1fl/flFoxP3YFP-Cre(FoxP3Cre),
Rosa26Cre-ERT2 (iCre+),
Bol6fl/fl,
Stat3fl/fl,
Tcrα−/−(Jackson
Labs),
Rag2−/−,
B6SJL (CD45.1) (Taconic Farms), and B6.FoxP3-GFP reporter mice were housed
in pathogen-free conditions. Prdm1fl/fl mice
were bred onto FoxP3Cre or
Rosa26Cre-ERT2 (iCre+) mice to
generate
Prdm1fl/flFoxP3Cre,
Prdm1fl/+FoxP3Cre,
or
Prdm1fl/flRosa26Cre-ERT2(Prdm1fl/fliCre+)
mice, respectively. Bol6fl/fl mice were bred
onto FoxP3Cre to generate
Bol6fl/flFoxP3Cremice that were further crossed onto
Prdm1fl/flFoxP3Creto yield
Bol6fl/flPrdm1fl/flFoxP3Cremice. Sfaf3fl/fl mice were crossed onto
Prdm1fl/flFoxP3Creto yield
Stat3fl/+Prdm1fl/flFoxP3Creor
Stat3fl/flPrdm1fl/flFoxP3Cremice. All mice were used at the age of 6 to 9 weeks unless otherwise
specified. Both sexes (males or females) were randomly included for all
experiments in an unblinded fashion. Generally between 3 to 7 mice were used
per group, as indicated in each experiment. All experiments were performed
in compliance with federal laws and institutional guidelines as approved by
DFCI’s and UAB’s Animal Care and Use Committee.
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2

Conditional Genetic Modification of Mice

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C57BL/6 (B6), BALB/c, Cd4-Cre, Mtorfl/fl, and Stat3fl/fl mice were purchased from Jackson Laboratory (Bar Harbor, MA). A further description of these mouse strains is listed in Supplementary Table S1. Mtorfl/fl and Stat3fl/fl mice were crossed with Cd4-Cre mice to create Mtorfl/flCd4-Cre, Stat3fl/flCd4-Cre, and Mtorfl/flStat3fl/flCd4-Cre mice. Mice were housed in a specific pathogen free facility at Houston Methodist Research Institute in Houston, Texas. All animal experiments in this study were approved by the Houston Methodist Animal Care Committee in accordance with institutional animal care and use guidelines.
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3

Mouse Models for Gut Microbiome Studies

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C57BL/6, 7B8Tg, zDC-DTR, CCR7−/−, CCR2−/−, BATF3−/−, CX3CR1gfp/gfp, IL-6−/−, MHCIIfl/fl, STAT3fl/fl, IL-6Rαfl/fl, CD4Cre, LysmCre, CD11cCre mice were purchased from The Jackson Laboratory. Mice were bred and maintained at the specific pathogen free animal facilities of the Medical University of South Carolina and later at the Ohio State University. All experiments were performed under protocols approved by Institutional Animal Care and Use Committee at both Universities. Mouse colonies were screened regularly for the presence of fecal SFB. Mice contaminated with SFB was treated with ampicillin in drinking water (1g/ml) for 2 weeks and let recovered before being used for experiments. SFB donor mice include C57BL/6 mice sourced from Taconic and in house SFB+ mice.
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4

Genetically Engineered Mouse Models for Immunology Research

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C57BL/6 WT, MyD88−/− and Il1r1−/− mice on C57BL/6 background were purchased from the Jackson Laboratory. IL-23R KO mice were imported from Genetech. hCD2-Cre mice (Jackson Laboratory) were crossed with Raptorfl/fl mice, Rictorfl/fl mice (Jackson Laboratory) and Stat3fl/fl mice (Ding et al., 2016 (link)) to generate CD2-cre;Raptorfl/fl, CD2-cre;Rictorfl/fl and CD2-cre;Stat3fl/fl conditional KO (cKO) mice. Male and female mice were used in all experiments (6–12 weeks old) and were housed in specific pathogen free conditions. All experiments were in accordance with institutional guidelines and approved by the IACUC at the University of Louisville.
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5

Genetically Modified Mouse Models for Immunological Studies

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C57BL/6J (B6),
Prdm1fl/flFoxP3YFP-Cre(FoxP3Cre),
Rosa26Cre-ERT2 (iCre+),
Bol6fl/fl,
Stat3fl/fl,
Tcrα−/−(Jackson
Labs),
Rag2−/−,
B6SJL (CD45.1) (Taconic Farms), and B6.FoxP3-GFP reporter mice were housed
in pathogen-free conditions. Prdm1fl/fl mice
were bred onto FoxP3Cre or
Rosa26Cre-ERT2 (iCre+) mice to
generate
Prdm1fl/flFoxP3Cre,
Prdm1fl/+FoxP3Cre,
or
Prdm1fl/flRosa26Cre-ERT2(Prdm1fl/fliCre+)
mice, respectively. Bol6fl/fl mice were bred
onto FoxP3Cre to generate
Bol6fl/flFoxP3Cremice that were further crossed onto
Prdm1fl/flFoxP3Creto yield
Bol6fl/flPrdm1fl/flFoxP3Cremice. Sfaf3fl/fl mice were crossed onto
Prdm1fl/flFoxP3Creto yield
Stat3fl/+Prdm1fl/flFoxP3Creor
Stat3fl/flPrdm1fl/flFoxP3Cremice. All mice were used at the age of 6 to 9 weeks unless otherwise
specified. Both sexes (males or females) were randomly included for all
experiments in an unblinded fashion. Generally between 3 to 7 mice were used
per group, as indicated in each experiment. All experiments were performed
in compliance with federal laws and institutional guidelines as approved by
DFCI’s and UAB’s Animal Care and Use Committee.
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6

Murine Models for Cancer Research

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Wild-type C57BL/6J mice and breeding pairs of ApcMin/+, Gfap-tk (thymidine kinase), Gfap-Cre, Plp1-CreERT, inducible diphtheria toxin receptor (iDTR), Rag2-/- γc-/-, Myd88fl/fl, Ifngr1fl/fl, Relafl/fl, and Stat3fl/fl mice were purchased from The Jackson Laboratory. All mice were housed in an American Association for the Accreditation of Laboratory Animal Care-accredited animal facility and maintained in specific pathogen-free conditions on wood-chip bedding and fed standard rodent chow ad libitum unless otherwise stated. Littermates were used for controls whenever possible; if different litters had to be combined, mice were age matched and non-littermates were co-housed to eliminate effects of the microbiome. Mice of both sexes were utilized in the experiments performed in this study, and experiments were carried out during the light cycle. All animal care and experimentation were approved by the Stanford University Institutional Animal Care and Use Committee.
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7

Genetically Engineered Mouse Models for Immunology Research

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C57BL/6 WT, MyD88−/− and Il1r1−/− mice on C57BL/6 background were purchased from the Jackson Laboratory. IL-23R KO mice were imported from Genetech. hCD2-Cre mice (Jackson Laboratory) were crossed with Raptorfl/fl mice, Rictorfl/fl mice (Jackson Laboratory) and Stat3fl/fl mice (Ding et al., 2016 (link)) to generate CD2-cre;Raptorfl/fl, CD2-cre;Rictorfl/fl and CD2-cre;Stat3fl/fl conditional KO (cKO) mice. Male and female mice were used in all experiments (6–12 weeks old) and were housed in specific pathogen free conditions. All experiments were in accordance with institutional guidelines and approved by the IACUC at the University of Louisville.
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8

Intestinal STAT3 Knockout Mouse Model

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Mice with a floxed STAT3 allele (Stat3fl/fl; Stock No. 016903) were purchased from the Jackson Laboratory (Bar Harbor, ME). Intestinal epithelial cell (IEC)-specific STAT3 (Stat3IEC-/-) mice were generated by breeding corresponding floxed mice with Villin997-Cre mice (the Jackson Laboratory; Stock No. 004586). Wild type (WT) C57BL/6J mice (Stock No. 000664) were also obtained from the Jackson Laboratory. All mice were kept in ventilated cages under specific pathogen-free condition. Animal experiments were approved by the Institutional Animal Care and Use Committee of North Carolina Research Campus (Protocol #21-008).
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9

Multiparametric Mouse Immune Phenotyping

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Itga3fl/fl (#008818), Il17aCre/+ (#016879), CD4-Cre (#022071), Rosa26lsl-Zsgreen/WT (#007906), 2D2 TCR transgenic (#006912), CD45.1+ congenic (#002014), Stat3fl/fl (#016923), and Tcra KO (#002116) mice were obtained from the Jackson Laboratory. Mice were bred and maintained in specific-pathogen-free facilities at Duke University and used in accordance with the Duke Institutional Animal Care and Use Committee guidelines. Experimental mice were used between 8 and 14 weeks of age with no preference for sex, except for adoptive transfer of CD4+ T cells, where donors and recipients were sex-matched. Co-housed experimental mice and littermate controls were used.
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