Method for separating and culturing mouse small intestine organoid capable of peristalsis in vitro
A technology of organoids and small intestines, which is applied in the field of cultivating peristaltic mouse small intestine organoids and in vitro separation, which can solve the problems of complicated operation, difficult cultivation, and inability to observe for a long time, and achieve the effect of simple operation method
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Embodiment 1
[0039] 1. Separation method
[0040] Step 1: Take three c57BL mice one week after birth, kill them by cervical dislocation, and sterilize them by immersing them in 70% alcohol for 1 min;
[0041] Step 2: Dissect the mouse in the ultra-clean workbench, take out all the large intestine and small intestine, put them in a 100mm Petri dish filled with PBS, and remove the large intestine;
[0042] Step 3: Using ophthalmic scissors, cut the small intestine longitudinally along the small intestine;
[0043] Step 4: Use the curved convex side of the curved ophthalmic forceps to gently scrape off the residues inside the small intestine and most of the small intestinal mucosal epithelium;
[0044] Step 5: Wash 2-3 times with 1xPBS buffer. After removing the washing supernatant, use ophthalmic scissors to cut the small intestine tissue into a size less than 1mm 3 Tissue fragments, and transferred to a 50mL centrifuge tube;
[0045] Step 6: After washing twice with 1xPBS, centrifuge wi...
Embodiment 2
[0063] 1. Separation method
[0064] Step 1: Take three c57BL mice one week after birth, kill them by cervical dislocation, and sterilize them by immersing them in 70% alcohol for 1 min;
[0065] Step 2: Dissect the mouse in the ultra-clean workbench, take out all the large intestine and small intestine, put them in a 100mm Petri dish filled with PBS, and remove the large intestine;
[0066] Step 3: Using ophthalmic scissors, cut the small intestine longitudinally along the small intestine;
[0067] Step 4: Use the curved convex side of the curved ophthalmic forceps to gently scrape off the residues inside the small intestine and most of the small intestinal mucosal epithelium;
[0068] Step 5: Wash 2-3 times with 1xPBS buffer. After removing the washing supernatant, use ophthalmic scissors to cut the small intestine tissue into a size less than 1mm 3 Tissue fragments, and transferred to a 50mL centrifuge tube;
[0069] Step 6: After washing twice with 1xPBS, centrifuge wi...
Embodiment 3
[0087] 1. Separation method
[0088] Step 1: Take three c57BL mice one week after birth, kill them by cervical dislocation, and sterilize them by immersing them in 70% alcohol for 1 min;
[0089] Step 2: Dissect the mouse in the ultra-clean workbench, take out all the large intestine and small intestine, put them in a 100mm Petri dish filled with PBS, and remove the large intestine;
[0090] Step 3: Using ophthalmic scissors, cut the small intestine longitudinally along the small intestine;
[0091] Step 4: Use the curved convex side of the curved ophthalmic forceps to gently scrape off the residues inside the small intestine and most of the small intestinal mucosal epithelium;
[0092] Step 5: Wash 2-3 times with 1xPBS buffer. After removing the washing supernatant, use ophthalmic scissors to cut the small intestine tissue into a size less than 1mm 3 Tissue fragments, and transferred to a 50mL centrifuge tube;
[0093] Step 6: After washing twice with 1xPBS, centrifuge wi...
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