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期刊论文 8

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免疫抑制 1

大鼠脑神经膜 1

微移植 1

拟除虫菊酯 1

毒效动力学 1

猪 1

电压敏感钠离子通道 1

肾脏 1

胎猪肾脏 1

非洲爪蟾 1

食蟹猴 1

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In vivo imaging of hematopoietic stem cell development in the zebrafish

Panpan Zhang, Feng Liu

《医学前沿（英文）》 2011年 第5卷 第3期   页码 239-247 doi: 10.1007/s11684-011-0123-0

摘要： imaging is crucial for developmental biology and can further help to follow cell development/differentiation in normal and pathological conditions. Recent advances in optical imaging techniques has facilitated tracing of the developmental dynamics of a specific organ, tissue, or even a single cell. The zebrafish is an excellent model for imaging of hematopoiesis due to its transparent embryo at early stage; moreover, different zebrafish hematopoietic stem cells (HSCs) transgenic lines have been demonstrated as very useful tools for illustrating the details of the HSC developmental process. In this review, we summarize recent studies related to the non-invasive imaging of HSC transgenics, to show that zebrafish transgenic lines are powerful tools for developmental biology and disease. At the end of the review, the perspective and some open questions in this field will be discussed.

关键词： hematopoietic stem cell     hematopoiesis     in vivo imaging     transgenics     zebrafish    

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molecule fluorescent probes for simultaneous imaging of two bioactive molecules in live cells and in vivo

Yongqing Zhou, Xin Wang, Wei Zhang, Bo Tang, Ping Li

《化学科学与工程前沿（英文）》 2022年 第16卷 第1期   页码 4-33 doi: 10.1007/s11705-021-2041-2

摘要： The interrelationships and synergistic regulations of bioactive molecules play pivotal roles in physiological and pathological processes involved in the initiation and development of some diseases, such as cancer and neurodegenerative and cardiovascular diseases. Therefore, the simultaneous, accurate and timely detection of two bioactive molecules is crucial to explore their roles and pathological mechanisms in related diseases. Fluorescence imaging associated with small molecular probes has been widely used in the imaging of bioactive molecules in living cells and due to its excellent performances, including high sensitivity and selectivity, noninvasive properties, real-time and high spatial temporal resolution. Single organic molecule fluorescent probes have been successively developed to simultaneously monitor two biomolecules to uncover their synergistic relationships in living systems. Hence, in this review, we focus on summarizing the design strategies, classifications, and bioimaging applications of dual-response fluorescent probes over the past decade. Furthermore, future research directions in this field are proposed.

关键词： bioactive molecules     fluorescent probes     in living cells and in vivo     review    

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SWIR Fluorescence Imaging In Vivo Monitoring and Evaluating Implanted M2 Macrophages in Skeletal Article

Mo Chen, Yuzhou Chen, Sijia Feng, Shixian Dong, Luyi Sun, Huizhu Li, Fuchun Chen, Nguyen Thi Kim Thanh, Yunxia Li, Shiyi Chen, You Wang, Jun Chen

《工程（英文）》 doi: 10.1016/j.eng.2023.05.010

摘要：

Skeletal muscle has a robust regeneration ability that is impaired by severe injury, disease, and aging, resulting in a decline in skeletal muscle function. Therefore, improving skeletal muscle regeneration is a key challenge in treating skeletal muscle-related disorders. Owing to their significant role in tissue regeneration, implantation of M2 macrophages (M2Mø) has great potential for improving skeletal muscle regeneration. Here, we present a short-wave infrared (SWIR) fluorescence imaging technique to obtain more in vivo information for an in-depth evaluation of the skeletal muscle regeneration effect after M2Mø transplantation. SWIR fluorescence imaging was employed to track implanted M2Mø in the injured skeletal muscle of mouse models. It is found that the implanted M2Mø accumulated at the injury site for two weeks. Then, SWIR fluorescence imaging of blood vessels showed that M2Mø implantation could improve the relative perfusion ratio on day 5 (1.09 ± 0.09 vs 0.85 ± 0.05; p = 0.01) and day 9 (1.38 ± 0.16 vs 0.95 ± 0.03; p = 0.01) post-injury, as well as augment the degree of skeletal muscle regeneration on day 13 post-injury. Finally, multiple linear regression analyses determined that post-injury time and relative perfusion ratio could be used as predictive indicators to evaluate skeletal muscle regeneration. These results provide more in vivo details about M2Mø in skeletal muscle regeneration and confirm that M2Mø could promote angiogenesis and improve the degree of skeletal muscle repair, which will guide the research and development of M2Mø implantation to improve skeletal muscle regeneration.

关键词： In vivo     Short-wave infrared     Skeletal muscle     Macrophage     Regeneration    

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Fabrication and in vivo evaluation of Ti6Al4V implants with controlled porous structure and complex shape

Xiang LI, Yun LUO, Chengtao WANG, Wenguang ZHANG, Yuanchao LI

《机械工程前沿（英文）》 2012年 第7卷 第1期   页码 66-71 doi: 10.1007/s11465-012-0302-y

摘要：

Electron beam melting process was used to fabricate porous Ti6Al4V implants. The porous structure and surface topography of the implants were characterized by scanning electron microscopy (SEM) and digital microscopy (DM). The results showed that the pore size was around 600 and the porosity approximated to 57%. There was about±50 μm of undulation on implants surfaces. Standard implants and a custom implant coupled with porous sections were designed and fabricated to validate the versatility of the electron beam melting (EBM) technique. After coated with bone-like apatite, samples with fully porous structures were implanted into cranial defects in rabbits to investigate the in vivo performance. The animals were sacrificed at 8 and 12 weeks after implantation. Bone ingrowth into porous structure was examined by histological analysis. The histological sections indicated that a large amount of new bone formation was observed in porous structure. The newly formed bone grew from the calvarial margins toward the center of the bone defect and was in close contact with implant surfaces. The results of the study showed that the EBM produced Ti6Al4V implants with well-controlled porous structure, rough surface topography and bone-like apatite layer are beneficial for bone ingrowth and apposition.

关键词： electron beam melting process     implant     porous structure     bone ingrowth    

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Positive ion activated rapid addition and mitochondrial targeting ratiometric fluorescent probes for in vivo

Yan Shi, Fangjun Huo, Yongkang Yue, Caixia Yin

《化学科学与工程前沿（英文）》 2022年 第16卷 第1期   页码 64-71 doi: 10.1007/s11705-021-2048-8

摘要： Heterocyclic compound quinoline and its derivatives exist in natural compounds and have a broad spectrum of biological activity. They play an important role in the design of new structural entities for medical applications. Similarly, indoles and their derivatives are found widely in nature. Amino acids, alkaloids and auxin are all derivatives of indoles, as are dyes, and their condensation with aldehydes makes it easy to construct reaction sites for nucleophilic addition agents. In this work, we combine these two groups organically to construct a rapid response site (within 30 s) for H S, and at the same time, a ratiometric fluorescence response is presented throughout the process of H S detection. As such, the lower detection limit can reach 55.7 nmol/L for H S. In addition, cell imaging shows that this probe can be used for the mitochondrial targeted detection of endogenous and exogenous H S. Finally, this probe application was verified by imaging H S in nude mice.

关键词： heterocyclic compound     hydrogen sulfide     ratiometric     mitochondrial targeted    

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Oral product input to the GI tract: GIS an oral product performance technology

Gordon L. Amidon, Yasuhiro Tsume

《化学科学与工程前沿（英文）》 2017年 第11卷 第4期   页码 516-520 doi: 10.1007/s11705-017-1658-7

摘要： The patient receives a pharmaceutical product, not a drug. The pharmaceutical products are formulated with a drug, an active ingredient to produce the maximum therapeutic effect after oral absorption. Therefore, it is the product we must optimize for the patients. In order to assure the safety and efficacy of pharmaceutical products, we need an predictive tool for oral product performance in patients. Currently, we are a surprisingly long way from accomplishing that objective. If the 20th century was the ‘age of the drug’, i.e., the ‘magic bullet’, the 21st century must become the ‘age of the guided missile’, i.e., the delivery system, including the form of the active pharmaceutical ingredient (API) (‘drug’). The physical form of the drug and the delivery system must be optimized to maximize the therapeutic benefits of pharmaceutical products for humans. Oral immediate release (IR) dosage forms cannot be optimal for all drugs or likely even any drugs (APIs). Still, the formulation of pharmaceutical products has to be optimized for patients. But how do we optimize oral delivery of drugs? It is usually through ‘trial and error’, in humans! We need a better way to optimize the oral dosage forms. We have suggested to select different dissolution methodologies for this optimization based on BCS Subclasses. In this article, we present the predicted drug dissolution profile of ketoconazole as a model drug from our laboratory utilizing a gastrointestinal simulator (GIS), which is an adaptation of the ASD system. GIS consists of three chambers representing stomach, duodenum, and jejunum, to create the human gastrointestinal tract-like environment and enable the control the gastric emptying rate. This dissolution system allows the monitoring of the drug dissolution phenomena and the observation of the supersaturation and the precipitation of pharmaceutical products, which is useful information to predict dissolution of pharmaceutical products. This system can provide the actual input needed to accurately predict the input into the systemic circulation required by many of the absorption prediction packages available today.

关键词： GIS     in vivo predictive dissolution     ketoconazole     BCS subclassification     supersaturation    

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注射大鼠脑神经膜的非洲爪蟾卵母细胞——一种创新的体外方法研究拟除虫菊酯对天然态离子通道的影响 Review

John Clark, Steve Symington

《工程（英文）》 2020年 第6卷 第5期   页码 515-521 doi: 10.1016/j.eng.2019.10.017

摘要：

将大鼠脑神经膜微移植到非洲爪蟾卵母细胞的质膜中，是一种利用标准电生理学方式研究其天然态通道和受体的体外方法。在本文中，我们发现注射了成年大鼠脑神经膜的卵母细胞会引发对河豚毒素敏感的膜去极化内向离子流，经除虫菊酯类杀虫剂氯菊酯和溴氰菊酯处理后，该电流呈浓度依赖性增加。根据我们最初的方案，随着时间的推移，卵母细胞的健康水平会降低，不同批次的不同蛙类卵母细胞间与神经膜的结合程度也不同，这限制了该试验在调控问题上的实用性。对分析程序、数据接受标准和分析方法的一系列更改可显著提高试验的精度，从而提高性能。这些变化促使这种体外方法成为一种毒理学相关分析方法，以研究拟除虫菊酯对取自幼年和成年大鼠脑中的神经膜片段的离子通道的毒性作用。

关键词： 微移植     拟除虫菊酯     大鼠脑神经膜     毒效动力学     电压敏感钠离子通道     非洲爪蟾    

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在临床批准的免疫抑制剂药物作用下胎猪肾脏在成熟猴体内的发育情况 Article

Tsuyoshi Takamura, Kenji Matsui, Naoto Matsumoto, Yatsumu Saito, Toshinari Fujimoto, Susumu Tajiri, Shuichiro Yamanaka, Kei Matsumoto, Akimitsu Kobayashi, Izumi Yamamoto, Hiroshi Sasaki, Haruyuki Hirayama, Hitomi Matsunari, Kazuaki Nakano, Hiroshi Nagashima, Akihiko Kiyoshi, Takao Kuroda, Makoto Inoue, Takeshi Miyawaki, Takashi Yokoo, Eiji Kobayashi

《工程（英文）》 2022年 第10卷 第3期   页码 65-73 doi: 10.1016/j.eng.2022.02.001

摘要：

在从猪到非人灵长类动物的肾脏异种移植中，仅使用临床批准的免疫抑制药物来控制免疫反应是困难的。此外，据我们所知，目前还没有关于使用胎猪作为肾脏供体的报道。本研究旨在比较新生猪和胎猪肾脏之间的移植排斥程度，以遗传未修饰的猪作为供体，将食蟹猴作为受体。切除受体食蟹猴的左肾，然后将在同一部位进行了血管吻合的新生猪和胎猪的肾脏移植到食蟹猴左肾腹膜。仅使用美国食品药品监督管理局批准的药物进行免疫抑制。将胎猪肾脏移植到食蟹猴的网膜和腹主动脉旁区域。随时间取样（每个实验取样两次），对移植组织的移植成活率和发育进行病理学检查。几周后，观察到血管吻合的新生猪肾脏在移植后出现急性排斥反应。尽管对食蟹猴和流入胎猪肾脏的受体血管给予相同的免疫抑制方案，但胎猪的肾脏仍免于排斥。猪-猴肾脏异种移植中胎猪肾脏的免疫原性低于新生猪肾脏。

关键词： 食蟹猴     猪     肾脏     胎猪肾脏     免疫抑制    

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标题 作者 时间 类型 操作

In vivo imaging of hematopoietic stem cell development in the zebrafish

Panpan Zhang, Feng Liu

期刊论文

molecule fluorescent probes for simultaneous imaging of two bioactive molecules in live cells and in vivo

Yongqing Zhou, Xin Wang, Wei Zhang, Bo Tang, Ping Li

期刊论文

SWIR Fluorescence Imaging In Vivo Monitoring and Evaluating Implanted M2 Macrophages in Skeletal

Mo Chen, Yuzhou Chen, Sijia Feng, Shixian Dong, Luyi Sun, Huizhu Li, Fuchun Chen, Nguyen Thi Kim Thanh, Yunxia Li, Shiyi Chen, You Wang, Jun Chen

期刊论文

Fabrication and in vivo evaluation of Ti6Al4V implants with controlled porous structure and complex shape

Xiang LI, Yun LUO, Chengtao WANG, Wenguang ZHANG, Yuanchao LI

期刊论文

Positive ion activated rapid addition and mitochondrial targeting ratiometric fluorescent probes for in vivo

Yan Shi, Fangjun Huo, Yongkang Yue, Caixia Yin

期刊论文

Oral product input to the GI tract: GIS an oral product performance technology

Gordon L. Amidon, Yasuhiro Tsume

期刊论文

注射大鼠脑神经膜的非洲爪蟾卵母细胞——一种创新的体外方法研究拟除虫菊酯对天然态离子通道的影响

John Clark, Steve Symington

期刊论文

在临床批准的免疫抑制剂药物作用下胎猪肾脏在成熟猴体内的发育情况

Tsuyoshi Takamura, Kenji Matsui, Naoto Matsumoto, Yatsumu Saito, Toshinari Fujimoto, Susumu Tajiri, Shuichiro Yamanaka, Kei Matsumoto, Akimitsu Kobayashi, Izumi Yamamoto, Hiroshi Sasaki, Haruyuki Hirayama, Hitomi Matsunari, Kazuaki Nakano, Hiroshi Nagashima, Akihiko Kiyoshi, Takao Kuroda, Makoto Inoue, Takeshi Miyawaki, Takashi Yokoo, Eiji Kobayashi

期刊论文