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SBIR Phase I: Bioprinted Prevascularized Adipose Graft for Soft Tissue Voids

SBIR Phase I: Bioprinted Prevascularized Adipose Graft for Soft Tissue Voids
SBIR 第一阶段:用于软组织空洞的生物打印预血管化脂肪移植物
批准号:
1248451
负责人:
Scott Collins
金额:
$15.0万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2013
资助国家:
美国
项目状态:
已结题
起止时间:
2013-01-01 至 2013-12-31

项目摘要

项目成果

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中文摘要
翻译
这个小企业创新研究第一阶段项目提出了一种新的组织工程血管化脂肪移植产品的重建手术。在全世界约一百万新发乳腺癌病例中,许多患者由于缺乏可行的重建选择而选择乳房切除术。这项研究的长期目标是建立一种自体组织结构,与传统产品相比,它可以更自然地与患者融合。这项拟议中的研究将使用一种新的生物打印技术来创建毛细血管通道,假设这些通道可以快速与宿主组织结合,从而使实验室生长的组织在移植到患者体内后能够存活。研究小组将构建结构,确定打印组织的最佳参数,并测量小鼠模型吻合的可行性。研究结果将有助于开发生物打印毛细管在快速吸附宿主方面的设计规则。从这里可以做出决定,在更大的动物中测试预血管化移植物。这项研究的结果预计将影响目前的几种治疗方案,如乳房肿瘤切除术后的乳房重建自体脂肪移植,每年影响美国约110,000人。该项目的更广泛影响/商业潜力将改善因癌症肿瘤切除术,先天性缺陷和创伤性损伤而致残的人的生活质量。乳房肿瘤切除术治疗后不对称的患者更容易相信癌症会复发并抑郁;据估计,25-30%的乳腺癌患者对乳房肿瘤切除术的结果不满意,乳房肿瘤切除术的重建选择很少。本文提出的方法,如果成功,应该解决这个问题,允许一个更自然的解决方案,利用患者自己的细胞,具有理论上良好的预后。组织工程领域目前仅限于小而薄的结构,这是由于营养灌注不足(即,例如,血管)。生物打印过程的进一步发展和体外细胞重组以构建血管化组织类似物将在组织工程和再生医学领域产生新的方法和结果。这项研究的结果将有助于该领域朝着更大的临床相关组织和潜在的整个器官发展。这项研究的商业影响将是在利润丰厚的100亿美元(美国)隆胸市场中为女性提供自体选择。
英文摘要
This Small Business Innovation Research Phase I project proposes a new tissue engineered vascularized adipose graft product for reconstructive surgery. Of the approximately one million new breast cancer cases worldwide, many patients choose mastectomy due to a lack of viable reconstructive options. The long-term objective of this research is to build an autologous tissue structure that can integrate more naturally with the patient than conventional products. The proposed research will use a new bioprinting technology to create capillary channels that are hypothesized to anastomose with host tissue quickly, thereby allowing lab-grown tissues to survive once transplanted to the patient. The research team will build constructs, determine optimal parameters for printing tissue, and measure feasibility of anastomosis with mouse models. The results will help the development of design rules for bioprinted capillaries with respect to rapid anastomoses to the host. From here a decision can be made to move forward with testing pre-vascularized grafts in larger animals. The results of this study are expected to impact several current treatment regimes, such as autologous fat grafting for breast reconstruction following lumpectomy, affecting approximately 110,000 people in the US annually.The broader impact/commercial potential of this project will improve the quality of life for people suffering from deformity due to cancer tumor removal, congenital defects and traumatic injuries. Patients with asymmetry following lumpectomy treatment for breast cancer are more likely to believe the cancer will reoccur and to be depressed; it is estimated that 25-30% of breast cancer patients are dissatisfied with the outcome of a lumpectomy and few reconstructive options exist for lumpectomies. The methods presented herein, if successful, should solve this problem, allowing a more natural solution utilizing the patient's own cells with a theoretically excellent prognosis. The field of Tissue Engineering is currently limited to small, thin constructs due to inadequate nutrient profusion (i. e., Vasculature). Further development of the bioprinting process and the reassembling of cells in vitro to construct vascularized tissue analogs will generate new methods and results in the fields of Tissue Engineering and Regenerative Medicine. The results of this research will help the field move towards larger, clinically relevant tissues and potentially whole organs. The commercial impacts of this research will be the availability of an autologous option for women in the lucrative $10B (US) market for breast augmentation.
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国内基金
海外基金
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    刘衍文
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