Ultrasonic cavitation derived stromal or mesenchymal vascular extracts and cells derived therefrom obtained from adipose tissue and use thereof
First Claim
1. A method for recovering stromal vascular fraction cells from blood vessels contained in or proximate to human adipose tissue comprising treating about 45-60 cc of adipose tissue comprising fat cells, blood vessels, and a stromal vascular fraction in a 60 cc tube with ultrasonic cavitation for about 10 minutes using a 14 mm ultrasonic rod,wherein ultrasonic cavitation is effected by slowly increasing cycle and amplitude once the ultrasonic rod is submerged into the tube containing the adipose tissue,wherein after 5 minutes, the ultrasonic process is stopped and the ultrasonic rod is adjusted up in the tube and continued for the 5 minutes, andwherein the fat cells and blood vessels are exploded,thereby releasing substantial numbers of intact stromal vascular fraction cells while substantially maintaining the viability of the cells constituting the stromal vascular fraction.
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Abstract
Methods of treating using adipose tissue using ultrasonic cavitation to dissociate the fat cells and blood vessels contained within adipose tissue and thereby obtain mesenchymal or stromal vascular fractions for use in human subjects are provided. These methods preferably do not include the use of any exogenous dissociating enzymes such as collagenase and result in increased numbers of the cells which constitute the mesenchymal or stromal vascular fractions (about 10-fold greater) than methods which use collagenase to isolate these cells.
47 Citations
16 Claims
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1. A method for recovering stromal vascular fraction cells from blood vessels contained in or proximate to human adipose tissue comprising treating about 45-60 cc of adipose tissue comprising fat cells, blood vessels, and a stromal vascular fraction in a 60 cc tube with ultrasonic cavitation for about 10 minutes using a 14 mm ultrasonic rod,
wherein ultrasonic cavitation is effected by slowly increasing cycle and amplitude once the ultrasonic rod is submerged into the tube containing the adipose tissue, wherein after 5 minutes, the ultrasonic process is stopped and the ultrasonic rod is adjusted up in the tube and continued for the 5 minutes, and wherein the fat cells and blood vessels are exploded, thereby releasing substantial numbers of intact stromal vascular fraction cells while substantially maintaining the viability of the cells constituting the stromal vascular fraction.
Specification