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25 g x 5 8 syringe

Manufactured by BD

The 25 G x 5/8" syringe is a medical device designed for the administration of various injectable solutions. It features a 25-gauge needle with a length of 5/8 inches, suitable for a variety of injection techniques. The syringe is constructed to provide a controlled and accurate delivery of the desired fluid volume.

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2 protocols using 25 g x 5 8 syringe

1

Murine Immune Response Profiling

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Sample collection: Seven to sixty days post-immunization, mice were anesthetized with isoflurane and blood was collected from the orbital sinus using capillary tubes without anticoagulant for sera separation. Inguinal and popliteal lymph nodes (LNs), spleens and both tibias and femurs were harvested and placed in cold complete Dulbecco’s Modified Eagle’s Medium [(DMEM, Corning, T10014CV) containing 10% heat inactivated Fetal Bovine Serum (FBS, Corning, 35-015), 1% Glutamax (Gibco, 35050-061) and 1% Penicillin/Streptomycin (Gibco, 5070063)]. All organs were kept on ice and immediately processed after collection.
LNs and spleen processing: Organs were homogenized with a syringe plunger and filtered through a 40 μm cell strainer on ice. Red blood cells (RBCs) of spleens were lysed using ACK lysing buffer (Lonza, 10-548E) for 5-8 minutes on ice and the reaction was stopped with cold PBS.
Bone Marrow (BM) processing: BM was flushed from both femurs and tibias from each mouse using a 1 mL 25 G x 5/8” syringe (BD Biosciences, 30962). RBCs were lysed as described above.
Cells from all tissues were resuspended in ice cold complete DMEM and immediately used for counting, culture, or staining.
Serum processing. Following collection, blood was centrifuged at 14,000 x g (maximum speed) for 30 minutes, 4°C. Serum was recovered and stored at -20°C for neutralization assays and ELISAs.
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2

Xenograft Tumor Formation Assay

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To assay tumor formation, cells were harvested and resuspended in cold PBS. For A2780 xenograft experiments, 3 million cells were injected in each flank of NU/J mice (Jackson Laboratory, cat. no. 002019). For A2058 xenograft experiments, 2 million cells were injected in each flank in NU/J mice. For HCT116 xenograft experiments, 4 million cells were injected in J:NU mice (Jackson Laboratory, cat. no. 007850). For MCF10A cells expressing HRASG12V, 10 million cells were injected in each flank in NU/J mice. For AGS xenograft experiments, the following conditions were tried: 5 million cells resuspended in PBS in each flank of NU/J mice (Jackson Laboratory, cat. no. 002019); 4 million cells resuspended in PBS in each flank of NGS mice (Jackson Laboratory, cat. no. 005557); and 15 million cells resuspended in a 1:1 PBS:Matrigel mixture in each flank of J:NU mice (Jackson Laboratory, cat. no. 007850). Cells were subcutaneously injected using a 1 mL 25G x 5/8 syringe (BD, cat. no. 309626). Mice were visually monitored for tumor formation routinely following injection. Once a tumor was visible, it was measured every three days by calipers. Tumor volume was calculated using the formula V = ½ (longer axis)(shorter axis). All mouse protocols were approved by the CSHL and Yale Institutional Animal Care and Use Committees.
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