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Deng S, Zhao X, Kou Z, Zhu Y, Zhang X, Chan HF. Effect of Valproic Acid on Promoting the Differentiation of Human Embryonic Stem Cells Into Cholangiocyte-Like Cells. Stem Cells Transl Med 2024; 13:166-176. [PMID: 37995322 PMCID: PMC10872666 DOI: 10.1093/stcltm/szad079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 10/06/2023] [Indexed: 11/25/2023] Open
Abstract
Cholangiocytes form a complex 3D network of bile ducts in the liver and contribute to liver function. The damage or destruction of cholangiocytes can lead to biliary diseases, and the shortage of cholangiocytes remains an obstacle for drug development targeting biliary diseases. Valproic acid (VPA) is a potent activator of Notch signaling pathway that is essential for cholangiocyte differentiation. Here, we report a VPA-based approach for cholangiocyte differentiation of human pluripotent stem cells. VPA activated Notch2 expression and upregulated HES-1, HEY-1, and Sox9 gene expression in hESC-derived hepatoblast. After 7 days treatment, VPA promoted successful differentiation of hepatoblast into cholangiocytes expressing cholangiocyte marker genes (AE2, AQP1, CFTR) and proteins (CK19 and CK7). In addition, the differentiated cholangiocytes formed bile duct-like structures after implantation into the spleen of NOD/SCID mice. Our results suggested that VPA can promote hESC differentiation to cholangiocyte-like cells. The induced cholangiocytes may serve as a potential cell source for both in vitro modeling and regenerative therapy of cholangiopathies. The findings can also support further development of small-molecule based differentiation protocols for cholangiocyte production.
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Affiliation(s)
- Shuai Deng
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, People’s Republic of China
- Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People’s Republic of China
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People’s Republic of China
| | - Xiaoyu Zhao
- Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People’s Republic of China
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People’s Republic of China
| | - Ziyan Kou
- Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People’s Republic of China
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People’s Republic of China
| | - Yanlun Zhu
- Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People’s Republic of China
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People’s Republic of China
- Center for Neuromusculoskeletal Restorative Medicine, Hong Kong SAR, People’s Republic of China
| | - Xuerao Zhang
- Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People’s Republic of China
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People’s Republic of China
| | - Hon Fai Chan
- Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People’s Republic of China
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People’s Republic of China
- Center for Neuromusculoskeletal Restorative Medicine, Hong Kong SAR, People’s Republic of China
- Hong Kong Branch of CAS Center for Excellence in Animal Evolution and Genetics, Hong Kong SAR, People’s Republic of China
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Jin Y, Zhang J, Xu Y, Yi K, Li F, Zhou H, Wang H, Chan HF, Lao YH, Lv S, Tao Y, Li M. Stem cell-derived hepatocyte therapy using versatile biomimetic nanozyme incorporated nanofiber-reinforced decellularized extracellular matrix hydrogels for the treatment of acute liver failure. Bioact Mater 2023; 28:112-131. [PMID: 37250866 PMCID: PMC10209199 DOI: 10.1016/j.bioactmat.2023.05.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 04/07/2023] [Accepted: 05/02/2023] [Indexed: 05/31/2023] Open
Abstract
Reactive oxygen species (ROS)-associated oxidative stress, inflammation storm, and massive hepatocyte necrosis are the typical manifestations of acute liver failure (ALF), therefore specific therapeutic interventions are essential for the devastating disease. Here, we developed a platform consisting of versatile biomimetic copper oxide nanozymes (Cu NZs)-loaded PLGA nanofibers (Cu NZs@PLGA nanofibers) and decellularized extracellular matrix (dECM) hydrogels for delivery of human adipose-derived mesenchymal stem/stromal cells-derived hepatocyte-like cells (hADMSCs-derived HLCs) (HLCs/Cu NZs@fiber/dECM). Cu NZs@PLGA nanofibers could conspicuously scavenge excessive ROS at the early stage of ALF, and reduce the massive accumulation of pro-inflammatory cytokines, herein efficiently preventing the deterioration of hepatocytes necrosis. Moreover, Cu NZs@PLGA nanofibers also exhibited a cytoprotection effect on the transplanted HLCs. Meanwhile, HLCs with hepatic-specific biofunctions and anti-inflammatory activity acted as a promising alternative cell source for ALF therapy. The dECM hydrogels further provided the desirable 3D environment and favorably improved the hepatic functions of HLCs. In addition, the pro-angiogenesis activity of Cu NZs@PLGA nanofibers also facilitated the integration of the whole implant with the host liver. Hence, HLCs/Cu NZs@fiber/dECM performed excellent synergistic therapeutic efficacy on ALF mice. This strategy using Cu NZs@PLGA nanofiber-reinforced dECM hydrogels for HLCs in situ delivery is a promising approach for ALF therapy and shows great potential for clinical translation.
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Affiliation(s)
- Yuanyuan Jin
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
- Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, 510630, China
| | - Jiabin Zhang
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
- Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, 510630, China
| | - Yanteng Xu
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
- Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, 510630, China
| | - Ke Yi
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Fenfang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Huicong Zhou
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
- School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Haixia Wang
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Science, The Chinese University of Hong Kong, 999077, Hong Kong, China
| | - Yeh-Hsing Lao
- Department of Pharmaceutical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, 14214, USA
| | - Shixian Lv
- School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Yu Tao
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
- Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, 510630, China
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Kwok HM, Chau CM, Lee HCH, Wong T, Chan HF, Luk WH, Yung WTA, Cheng LF, Ma KFJ. Gadoxetic acid in hepatocellular carcinoma and liver metastases: pearls and pitfalls. Clin Radiol 2023; 78:715-723. [PMID: 37453807 DOI: 10.1016/j.crad.2023.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/23/2023] [Accepted: 06/12/2023] [Indexed: 07/18/2023]
Abstract
Gadoxetic disodium (Primovist) is a hepatocyte-specific magnetic resonance imaging (MRI) contrast agent with increasing popularity with its unique dual dynamic and excretory properties in focal liver lesion detection and characterisation. In-depth knowledge of its diagnostic utility and pitfalls in hepatocellular carcinoma (HCC) and liver metastases is crucial in facilitating clinical management. The current article reviews the pearls and pitfalls in these aspects with highlights from the latest research evidence. Pearls for common usage of Primovist in HCC includes detection of precursor cancer lesions in cirrhotic patients. Hepatobiliary phase hypointensity precedes arterial phase hyperenhancement (APHE) in hepatocarcinogenesis. Hepatobiliary phase hypointense nodules without APHE can represent early or progressed hepatocellular carcinoma (HCC) and high-grade dysplastic nodules. In addition, Primovist is useful to differentiate HCC from pseudolesions. Pitfalls in diagnosing HCC include transient tachypnoea in the arterial phase, rare hepatobiliary phase hyperintense HCC, and decompensated liver cirrhosis compromising image quality. Primovist is currently the most sensitive technique in diagnosing liver metastases before curative hepatic resection. Other patterns of enhancement of liver metastases, "disappearing" liver metastases are important pitfalls. Radiologists should be aware of the diagnostic utility, limitations, and potential pitfalls for the common usage of hepatobiliary specific contrast agent in liver MRI.
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Affiliation(s)
- H M Kwok
- Department of Radiology, Princess Margaret Hospital, Hong Kong.
| | - C M Chau
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - H C H Lee
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - T Wong
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - H F Chan
- Department of Radiology, Queen Mary Hospital, Hong Kong
| | - W H Luk
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - W T A Yung
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - L F Cheng
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - K F J Ma
- Department of Radiology, Princess Margaret Hospital, Hong Kong
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Ebrahimi BS, Khwaounjoo P, Argus F, Chan HF, Nash MP, McGiffin D, Kaye D, Doi A, Joseph T, Whitford H, Tawhai MH. Predicting Patient Status in Chronic Thromboembolic Pulmonary Hypertension Using a Biophysical Model. Annu Int Conf IEEE Eng Med Biol Soc 2023; 2023:1-4. [PMID: 38083065 DOI: 10.1109/embc40787.2023.10340433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) involves abnormally high blood pressure in the pulmonary vessels and is associated with small vessel vasculopathy and pre-capillary proximal occlusions. Management of CTEPH disease is challenging, therefore accurate diagnosis is crucial in ensuring effective treatment and improved patient outcomes. The treatment of choice for CTEPH is pulmonary endarterectomy, which is an invasive surgical intervention to remove thrombi. Following PEA, a number of patients experience poor outcomes or worse-than-expected improvements, which may indicate that they have significant small vessel disease. A method that can predict the extent of distal remodelling may provide useful clinical information to plan appropriate CTEPH patient treatment. Here, a novel biophysical modelling approach has been developed to estimate and quantify the extent of distal remodelling. This method includes a combination of mathematical modelling and computed tomography pulmonary angiography to first model the geometry of the pulmonary arteries and to identify the under-perfused regions in CTEPH. The geometric model is then used alongside haemodynamic measurements from right heart catheterisation to predict distal remodelling. In this study, the method is tested and validated using synthetically generated remodelling data. Then, a preliminary application of this technique to patient data is shown to demonstrate the potential of the approach for use in the clinical setting.Clinical relevance- Patient-specific modelling can help provide useful information regarding the extent of distal vasculopathy on a per-patient basis, which remains challenging. Physicians can be unsure of outcomes following pulmonary endarterectomy. Therefore, the predictive aspect of the patient's response to surgery can help with clinical decision-making.
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Zhu Y, Wang Y, Xia G, Zhang X, Deng S, Zhao X, Xu Y, Chang G, Tao Y, Li M, Li H, Huang X, Chan HF. Oral Delivery of Bioactive Glass-Loaded Core-Shell Hydrogel Microspheres for Effective Treatment of Inflammatory Bowel Disease. Adv Sci (Weinh) 2023; 10:e2207418. [PMID: 37092589 PMCID: PMC10288274 DOI: 10.1002/advs.202207418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/13/2023] [Indexed: 05/03/2023]
Abstract
Resolving inflammation and promoting intestinal tissue regeneration are critical for inflammatory bowel disease (IBD) treatment. Bioactive glass (BG) is a clinically approved bone graft material and has been shown to modulate inflammatory response, but it is unknown whether BG can be applied to treat IBD. Here, it is reported that BG attenuates pro-inflammatory response of lipopolysaccharide (LPS)-stimulated macrophages and hence reduces inflammatory damage to intestinal organoids in vitro. In addition, zein/sodium alginate-based core-shell microspheres (Zein/SA/BG) are developed for oral delivery of BG, which helps prevent premature dissolution of BG in the stomach. The results show that Zein/SA/BG protects BG from a gastric-simulated environment while dissolved in an intestinal-simulated environment. When administered to acute and chronic colitis mice model, Zein/SA/BG significantly reduces intestinal inflammation, promotes epithelial tissue regeneration, and partially restores microbiota homeostasis. These findings are the first to reveal the therapeutic efficacy of BG against IBD, which may provide a new therapeutic approach at low cost for effective IBD treatment.
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Affiliation(s)
- Yanlun Zhu
- Key Laboratory for Regenerative Medicine of the Ministry of Education of ChinaSchool of Biomedical SciencesFaculty of MedicineThe Chinese University of Hong KongShatinHong Kong SAR999077China
- Institute for Tissue Engineering and Regenerative MedicineThe Chinese University of Hong KongShatinHong Kong SAR999077China
| | - Yiwei Wang
- Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine600 Yishan RdShanghai200233China
| | - Guanggai Xia
- Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine600 Yishan RdShanghai200233China
| | - Xuerao Zhang
- Key Laboratory for Regenerative Medicine of the Ministry of Education of ChinaSchool of Biomedical SciencesFaculty of MedicineThe Chinese University of Hong KongShatinHong Kong SAR999077China
- Institute for Tissue Engineering and Regenerative MedicineThe Chinese University of Hong KongShatinHong Kong SAR999077China
| | - Shuai Deng
- Key Laboratory for Regenerative Medicine of the Ministry of Education of ChinaSchool of Biomedical SciencesFaculty of MedicineThe Chinese University of Hong KongShatinHong Kong SAR999077China
- Institute for Tissue Engineering and Regenerative MedicineThe Chinese University of Hong KongShatinHong Kong SAR999077China
- Cell Therapy and Cell Drugs of Luzhou Key LaboratorySchool of PharmacySouthwest Medical UniversityLuzhouSichuan646000China
| | - Xiaoyu Zhao
- Key Laboratory for Regenerative Medicine of the Ministry of Education of ChinaSchool of Biomedical SciencesFaculty of MedicineThe Chinese University of Hong KongShatinHong Kong SAR999077China
- Institute for Tissue Engineering and Regenerative MedicineThe Chinese University of Hong KongShatinHong Kong SAR999077China
| | - Yanteng Xu
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated HospitalSun Yat‐sen UniversityGuangzhou510630China
| | - Guozhu Chang
- Key Laboratory for Regenerative Medicine of the Ministry of Education of ChinaSchool of Biomedical SciencesFaculty of MedicineThe Chinese University of Hong KongShatinHong Kong SAR999077China
- Institute for Tissue Engineering and Regenerative MedicineThe Chinese University of Hong KongShatinHong Kong SAR999077China
| | - Yu Tao
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated HospitalSun Yat‐sen UniversityGuangzhou510630China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated HospitalSun Yat‐sen UniversityGuangzhou510630China
- Guangdong Provincial Key Laboratory of Liver DiseaseGuangzhou510630China
| | - Haiyan Li
- Chemical and Environmental EngineeringSchool of EngineeringRMIT University124 La Trobe StMelbourneVIC3000Australia
| | - Xinyu Huang
- Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine600 Yishan RdShanghai200233China
| | - Hon Fai Chan
- Key Laboratory for Regenerative Medicine of the Ministry of Education of ChinaSchool of Biomedical SciencesFaculty of MedicineThe Chinese University of Hong KongShatinHong Kong SAR999077China
- Institute for Tissue Engineering and Regenerative MedicineThe Chinese University of Hong KongShatinHong Kong SAR999077China
- Hong Kong Branch of CAS Center for Excellence in Animal Evolution and Genetics999077Hong Kong SARChina
- Center for Neuromusculoskeletal Restorative MedicineHong Kong Science ParkHong Kong SAR999077China
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Chen L, Wang J, Yang T, Xie L, Cui Z, Yu Q, Zhong J, Chan HF, Xue Y, Guo Y, Chen J. Establishment of iPS cell line (KLRMMEi003-A) from a patient with Usher syndrome due to USH2A mutation. Stem Cell Res 2023; 68:103055. [PMID: 36863132 DOI: 10.1016/j.scr.2023.103055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/17/2023] [Accepted: 02/18/2023] [Indexed: 03/04/2023] Open
Abstract
We generated an induced pluripotent stem (iPS) cell line by reprogramming peripheral blood mononuclear cells of a patient with Usher syndrome type II carrying USH2A gene mutation (c.8559-2A > G). The iPS cell line with confirmed patient-specific point mutation exhibited typical iPS cell characteristics and maintained a normal karyotype. It can be used as 2D and 3D models to investigate the underlying pathogenic mechanism and lay a solid foundation for future personalized therapy.
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Affiliation(s)
- Luyin Chen
- Ophthalmology Department, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Jianing Wang
- Ophthalmology Department, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Tingting Yang
- Ophthalmology Department, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Linyao Xie
- Ophthalmology Department, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Zekai Cui
- Aier Eye Institute, 18th Floor, the New Century Building, #198 Furong Middle Road, Changsha 410015 Hunan, China
| | - Quan Yu
- Centric Laboratory, Medical College, Jinan University, Guangzhou, China
| | - Jingxiang Zhong
- Ophthalmology Department, The First Affiliated Hospital of Jinan University, Guangzhou, China; Institute of Ophthalmology, Medical College, Jinan University, Guangzhou 510632, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Yunxia Xue
- Ophthalmology Department, The First Affiliated Hospital of Jinan University, Guangzhou, China; Institute of Ophthalmology, Medical College, Jinan University, Guangzhou 510632, China.
| | - Yonglong Guo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.
| | - Jiansu Chen
- Ophthalmology Department, The First Affiliated Hospital of Jinan University, Guangzhou, China; Institute of Ophthalmology, Medical College, Jinan University, Guangzhou 510632, China; Aier Eye Institute, 18th Floor, the New Century Building, #198 Furong Middle Road, Changsha 410015 Hunan, China.
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Sun X, Cui Z, Liang Y, Duan C, Chan HF, Mao S, Gu J, Ding C, Yang X, Wang Q, Tang S, Chen J. One-stop assembly of adherent 3D retinal organoids from hiPSCs based on 3D-printed derived PDMS microwell platform. Biofabrication 2023; 15. [PMID: 36963105 DOI: 10.1088/1758-5090/acc761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 03/24/2023] [Indexed: 03/26/2023]
Abstract
The three-dimensional (3D) retinal organoids (ROs) derived from human induced pluripotent stem cells (hiPSCs), mimicking the growth and development of the human retina, is a promising model for investigating inherited retinal diseases (IRD) in vitro. However, the efficient generation of homogenous ROs remains a challenge. Here we introduce a novel Polydimethylsiloxane (PDMS) microwell platform containing 62 V-bottom micro-cavities for the ROs differentiation from hiPSCs. The uniform adherent 3D ROs could spontaneously form using neural retina (NR) induction Our results showed that the complex of NR (expressing VSX2), ciliary margin (CM) (expressing RDH10), and retinal pigment epithelium (RPE) (expressing ZO-1, MITF, and RPE65) developed in the PDMS microwell after the differentiation. It is important to note that ROs in PDMS microwell platforms not only enable one-stop assembly but also maintain homogeneity and mature differentiation over a period of more than 25 weeks without the use of BMP4 and Matrigel. Retinal ganglion cells (expressing BRN3a), amacrine cells (expressing AP2a), horizontal cells (expressing PROX1 and AP2α), photoreceptor cells for cone (expressing S-opsin L/M-opsin) and rod (expressing Rod opsin), bipolar cells (expressing VSX2 and PKCα), and Müller glial cells (expressing GS and Sox9) gradually emerged. Furthermore, we replaced fetal bovine serum (FBS) with human platelet lysate (HPL) and established a xeno-free culture workflow that facilitates clinical application. Thus, our PDMS microwell platform for one-stop assembly and long-term culture of ROs using a xeno-free workflow is favorable for retinal disease modeling, drug screening, and manufacturing ROs for clinical translation.
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Affiliation(s)
- Xihao Sun
- Aier School of Ophthalmology, Central South University, Aier Eye Hospital Group, 188 South Furong Road, Changsha, hunan, 410015, CHINA
| | - Zekai Cui
- Aier School of Ophthalmology, Central South University, Aier Eye Hospital Group, 188 South Furong Road, Changsha, hunan, 410015, CHINA
| | - Yuqin Liang
- Aier School of Ophthalmology, Central South University, Aier Eye Hospital Group, 188 South Furong Road, Changsha, hunan, 410015, CHINA
| | - Chunwen Duan
- Aier School of Ophthalmology, Central South University, Aier Eye Hospital Group, 188 South Furong Road, Changsha, hunan, 410083, CHINA
| | - Hon Fai Chan
- Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave, 1-025, Cambridge, Massachusetts, 02139-4307, UNITED STATES
| | - Shengru Mao
- , Aier Eye Institute, Aier Eye Hospital Group, 188 South Furong Road, Changsha, Hunan, 410015, CHINA
| | - Jianing Gu
- , Aier Eye Institute, Aier Eye Hospital Group, 188 South Furong Road, Changsha, Hunan, 410015, CHINA
| | - Chengcheng Ding
- Aier Eye Institute, Aier Eye Hospital Group, 188 South Furong Road, Changsha, hunan, 410015, CHINA
| | - Xu Yang
- Aier Eye Institute, Aier Eye Hospital Group, 188 South Furong Road, Changsha, hunan, 410015, CHINA
| | - Qing Wang
- , Aier Eye Institute, Aier Eye Hospital Group, 188 South Furong Road, Changsha, Hunan, 410015, CHINA
| | - Shibo Tang
- Aier School of Ophthalmology, Central South University, Aier Eye Hospital Group, 188 South Furong Road, Changsha, hunan, 410083, CHINA
| | - Jiansu Chen
- Jinan University, Jinan University, No.601, West Huangpu Avenue, Guangzhou, 510632, CHINA
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8
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Xu H, Zhu Y, Hsiao AWT, Xu J, Tong W, Chang L, Zhang X, Chen YF, Li J, Chen W, Zhang Y, Chan HF, Lee CW. Bioactive glass-elicited stem cell-derived extracellular vesicles regulate M2 macrophage polarization and angiogenesis to improve tendon regeneration and functional recovery. Biomaterials 2023; 294:121998. [PMID: 36641814 DOI: 10.1016/j.biomaterials.2023.121998] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 12/31/2022] [Accepted: 01/08/2023] [Indexed: 01/11/2023]
Abstract
Effective countermeasures for tendon injury remains unsatisfactory. Mesenchymal stem cell-derived extracellular vesicles (MSC-EVs)-based therapy via regulation of Mφ-mediated angiogenesis has emerged as a promising strategy for tissue regeneration. Still, approaches to tailor the functions of EVs to treat tendon injuries have been limited. We reported a novel strategy by applying MSC-EVs boosted with bioactive glasses (BG). BG-elicited EVs (EVB) showed up-regulation of medicinal miRNAs, including miR-199b-3p and miR-125a-5p, which play a pivotal role in M2 Mφ-mediated angiogenesis. EVB accelerated angiogenesis via the reprogrammed anti-inflammatory M2 Mφs compared with naïve MSC-EVs (EVN). In rodent Achilles tendon rupture model, EVB local administration activated anti-inflammatory responses via M2 polarization and led to a spatial correlation between M2 Mφs and newly formed blood vessels. Our results showed that EVB outperformed EVN in promoting tenogenesis and in reducing detrimental morphological changes without causing heterotopic ossification. Biomechanical test revealed that EVB significantly improved ultimate load, stiffness, and tensile modulus of the repaired tendon, along with a positive correlation between M2/M1 ratio and biomechanical properties. On the basis of the boosted nature to reprogram regenerative microenvironment, EVB holds considerable potential to be developed as a next-generation therapeutic modality for enhancing functional regeneration to achieve satisfying tendon regeneration.
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Affiliation(s)
- Hongtao Xu
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China; Musculoskeletal Research Laboratory, Department of Orthopedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China; Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
| | - Yanlun Zhu
- Institute for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
| | - Allen Wei-Ting Hsiao
- Musculoskeletal Research Laboratory, Department of Orthopedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China.
| | - Jiankun Xu
- Musculoskeletal Research Laboratory, Department of Orthopedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China; Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
| | - Wenxue Tong
- Musculoskeletal Research Laboratory, Department of Orthopedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China; Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
| | - Liang Chang
- Musculoskeletal Research Laboratory, Department of Orthopedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China; Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
| | - Xuerao Zhang
- Institute for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
| | - Yi-Fan Chen
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan; Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan; International Ph.D. Program for Translational Science, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan; Master Program in Clinical Genomics and Proteomics, School of Pharmacy, Taipei Medical University, Taipei, Taiwan.
| | - Jie Li
- Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China.
| | - Wei Chen
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, China.
| | - Yingze Zhang
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, China.
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; Center for Neuromusculoskeletal Restorative Medicine, Hong Kong SAR, China.
| | - Chien-Wei Lee
- Center for Translational Genomics & Regenerative Medicine Research, China Medical University Hospital, China Medical University, Taichung, Taiwan.
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9
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Zhang Y, Xu Y, Kong H, Zhang J, Chan HF, Wang J, Shao D, Tao Y, Li M. Microneedle system for tissue engineering and regenerative medicine. Exploration (Beijing) 2023; 3:20210170. [PMID: 37323624 PMCID: PMC10190997 DOI: 10.1002/exp.20210170] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 04/18/2022] [Indexed: 06/17/2023]
Abstract
Global increasing demand for high life quality and length facilitates the development of tissue engineering and regenerative medicine, which apply multidisciplinary theories and techniques to achieve the structural reconstruction and functional recovery of disordered or damaged tissues and organs. However, the clinical performances of adopted drugs, materials, and powerful cells in the laboratory are inescapably limited by the currently available technologies. To tackle the problems, versatile microneedles are developed as the new platform for local delivery of diverse cargos with minimal invasion. The efficient delivery, as well as painless and convenient procedure endow microneedles with good patient compliance in clinic. In this review, we first categorize different microneedle systems and delivery models, and then summarize their applications in tissue engineering and regenerative medicine mainly involving maintenance and rehabilitation of damaged tissues and organs. In the end, we discuss the advantages, challenges, and prospects of microneedles in depth for future clinical translations.
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Affiliation(s)
- Yixin Zhang
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Yanteng Xu
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Huimin Kong
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Jiabin Zhang
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative MedicineSchool of Biomedical ScienceThe Chinese University of Hong KongHong KongChina
| | - Jiasi Wang
- School of Biomedical EngineeringSun Yat‐sen UniversityShenzhenChina
| | - Dan Shao
- Institutes of Life SciencesSchool of MedicineSouth China University of TechnologyGuangzhouChina
| | - Yu Tao
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational MedicineCenter for NanomedicineThe Third Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
- Guangdong Provincial Key Laboratory of Liver Disease ResearchGuangzhouChina
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10
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Dang W, Wang Y, Chen WC, Ju E, Mintz RL, Teng Y, Zhu L, Wang K, Lv S, Chan HF, Tao Y, Li M. Implantable 3D Printed Hydrogel Scaffolds Loading Copper-Doxorubicin Complexes for Postoperative Chemo/Chemodynamic Therapy. ACS Appl Mater Interfaces 2023; 15:4911-4923. [PMID: 36656977 DOI: 10.1021/acsami.2c18494] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Biomaterial-based implants hold great potential for postoperative cancer treatment due to the enhanced drug dosage at the disease site and decreased systemic toxicity. However, the elaborate design of implants to avoid complicated chemical modification and burst release remains challenging. Herein, we report a three-dimensional (3D) printed hydrogel scaffold to enable sustained release of drugs for postoperative synergistic cancer therapy. The hydrogel scaffold is composed of Pluronic F127 and sodium alginate (SA) as well as doxorubicin (DOX) and copper ions (F127-SA/Cu-DOX hydrogel scaffold). Benefiting from the coordination of Cu(II) with both SA and DOX, burst release of DOX can be overcome, and prolonged release time can be achieved. The therapeutic efficiency can be adjusted by altering the amount of DOX and Cu(II) in the scaffolds. Moreover, apoptosis and ferroptosis of cancer cells can be induced through the combination of chemotherapy and chemodynamic therapy. In addition, DOX supplies excess hydrogen peroxide to enhance the efficiency of Cu-based chemodynamic therapy. When implanted in the resection site, hydrogel scaffolds effectively inhibit tumor growth. Overall, this study may offer a new strategy for fabricating local implants with synergistic therapeutic performance for preventing postoperative cancer recurrence.
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Affiliation(s)
- Wentao Dang
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Yuqin Wang
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Wei-Chih Chen
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Enguo Ju
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Rachel L Mintz
- Department of Biomedical Engineering, Washington University, St. Louis, Missouri 63110, United States
| | - Yue Teng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Lili Zhu
- Department of Blood Transfusion, The Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - Kun Wang
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Shixian Lv
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Science, the Chinese University of Hong Kong, Hong Kong 999077, China
| | - Yu Tao
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
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11
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Deng S, Zhao X, Zhu Y, Tang N, Wang R, Zhang X, Qu F, Ho YP, Lee WYW, Chen J, Li M, Tao Y, Chan HF. Efficient hepatic differentiation of hydrogel microsphere-encapsulated human pluripotent stem cells for engineering prevascularized liver tissue. Biofabrication 2022; 15. [DOI: 10.1088/1758-5090/aca79b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 11/30/2022] [Indexed: 12/02/2022]
Abstract
Abstract
Liver tissue engineering is promising as an alternative strategy to treat liver failure. However, generating functional hepatocytes from stem cells is conventionally restricted by the immature status of differentiated cells. Besides, embedding hepatocytes in bulk scaffold is limited by a lack of vascularity and low cell-packing density. Here, we fabricate collagen type I (COL1) microspheres for efficient hepatic differentiation of pluripotent stem cells and subsequent assembly of prevascularized liver tissue (PLT). Using a microfluidic platform, we demonstrate that hydrogel microspheres (mCOL1) encapsulating human embryonic stem cells (hESC) can be reproducibly generated and efficiently differentiated into hepatocyte-like cells (HLC) microspheres for the first time. Compared with other culture configurations such as encapsulation of hESC in a bulk COL1 hydrogel and 2D monolayer culture, COL1 microspheres with high uniformity produce HLC microspheres of improved maturity based on comprehensive analyses of cell morphology, transcriptome profile, hepatic marker expression and hepatic functions. In addition, these HLC microspheres can be applied as building blocks to self-assemble with endothelial cells to construct a dense PLT. The PLT resembles native liver tissue with high cell-packing density, shows successful engraftment in mice liver following implantation, and exhibits improved hepatic function in vivo. Overall, it is believed that this multiscale technology will advance the fabrication of stem cell-based liver tissue for regenerative medicine, drug screening, and in vitro liver modeling.
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12
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Chow BCK, Lo SSM, Lee JCY, Chiang JB, Chan HF, Ho CB, Szeto LT, Tang KW. Familial Amyloidotic Polyneuropathy with Leptomeningeal and Cardiac Involvement in a Patient with Gly73Glu Transthyretin Gene Mutation — Non-invasive Diagnostic Approach with Multimodality Imaging Findings: a Case Report. Hong Kong Journal of Radiology 2022. [DOI: 10.12809/hkjr2217296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- BCK Chow
- Department of Radiology and Imaging, Queen Elizabeth Hospital, Hong Kong
| | - SSM Lo
- Scanning Department, St. Teresa’s Hospital, Hong Kong
| | - JCY Lee
- Department of Radiology and Imaging, Queen Elizabeth Hospital, Hong Kong
| | - JB Chiang
- Department of Radiology and Imaging, Queen Elizabeth Hospital, Hong Kong
| | - HF Chan
- Department of Medicine, Queen Elizabeth Hospital, Hong Kong
| | - CB Ho
- Department of Medicine, Queen Elizabeth Hospital, Hong Kong
| | - LT Szeto
- Department of Nuclear Medicine, Queen Elizabeth Hospital, Hong Kong
| | - KW Tang
- Department of Radiology and Imaging, Queen Elizabeth Hospital, Hong Kong
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13
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Su T, Liang L, Zhang L, Wang J, Chen L, Su C, Cao J, Yu Q, Deng S, Chan HF, Tang S, Guo Y, Chen J. Retinal organoids and microfluidic chip-based approaches to explore the retinitis pigmentosa with USH2A mutations. Front Bioeng Biotechnol 2022; 10:939774. [PMID: 36185441 PMCID: PMC9524156 DOI: 10.3389/fbioe.2022.939774] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 08/23/2022] [Indexed: 11/19/2022] Open
Abstract
Retinitis pigmentosa (RP) is a leading cause of vision impairment and blindness worldwide, with limited medical treatment options. USH2A mutations are one of the most common causes of non-syndromic RP. In this study, we developed retinal organoids (ROs) and retinal pigment epithelium (RPE) cells from induced pluripotent stem cells (iPSCs) of RP patient to establish a sustainable in vitro RP disease model. RT-qPCR, western blot, and immunofluorescent staining assessments showed that USH2A mutations induced apoptosis of iPSCs and ROs, and deficiency of the extracellular matrix (ECM) components. Transcriptomics and proteomics findings suggested that abnormal ECM-receptor interactions could result in apoptosis of ROs with USH2A mutations via the PI3K-Akt pathway. To optimize the culture conditions of ROs, we fabricated a microfluidic chip to co-culture the ROs with RPE cells. Our results showed that this perfusion system could efficiently improve the survival rate of ROs. Further, ECM components such as laminin and collagen IV of ROs in the RP group were upregulated compared with those maintained in static culture. These findings illustrate the potential of microfluidic chip combined with ROs technology in disease modelling for RP.
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Affiliation(s)
- Ting Su
- Department of Ophthalmology, First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China
| | - Liying Liang
- Department of Ophthalmology, First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China
| | - Lan Zhang
- Department of Ophthalmology, First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China
| | - Jianing Wang
- Key Laboratory for Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China
| | - Luyin Chen
- Key Laboratory for Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China
| | - Caiying Su
- Department of Ophthalmology, First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China
| | - Jixing Cao
- Department of Ophthalmology, First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China
| | - Quan Yu
- Centric Laboratory, Medical College, Jinan University, Guangzhou, China
| | - Shuai Deng
- Institute for Tissue Engineering and Regenerative Medicine, Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory for Regenerative Medicine of the Ministry of Education of China, Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory for Regenerative Medicine of the Ministry of Education of China, Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
| | | | - Yonglong Guo
- Department of Ophthalmology, First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- *Correspondence: Jiansu Chen, ; Yonglong Guo,
| | - Jiansu Chen
- Key Laboratory for Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China
- Aier Eye Institute, Changsha, China
- Institute of Ophthalmology, Medical College, Jinan University, Guangzhou, China
- *Correspondence: Jiansu Chen, ; Yonglong Guo,
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14
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Liang Y, Sun X, Duan C, Zhou Y, Cui Z, Ding C, Gu J, Mao S, Ji S, Chan HF, Tang S, Chen J. Generation of a gene-corrected human iPSC line (CSUASOi004-A-1) from a retinitis pigmentosa patient with heterozygous c.2699 G>A mutation in the PRPF6 gene. Stem Cell Res 2022; 64:102911. [PMID: 36103774 DOI: 10.1016/j.scr.2022.102911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 11/15/2022] Open
Abstract
Retinitis pigmentosa (RP) is one of the most common inherited retinal diseases characterized by nyctalopia, progressive vision loss and visual field contraction. we previously generated an induced pluripotent stem cell line (CSUASOi004-A) from a RP patient with heterozygous PRPF6 c.2699 G>A (p.R900H) mutation. Here we corrected the PRPF6 c.2699 G>A mutation genetically using CRISPR/Cas9 technology to generate an isogenic control (CSUASOi004-A-1), which can provide a valuable resource in the research of the disease.
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Affiliation(s)
- Yuqin Liang
- Aier School of Ophthalmology, Central South University, P.R.C., 18th Floor, the New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China; Aier Eye Institute, 18th Floor, The New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China
| | - Xihao Sun
- Aier School of Ophthalmology, Central South University, P.R.C., 18th Floor, the New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China; Aier Eye Institute, 18th Floor, The New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China
| | - Chunwen Duan
- Aier School of Ophthalmology, Central South University, P.R.C., 18th Floor, the New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China; Aier Eye Institute, 18th Floor, The New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China
| | - Yalan Zhou
- Aier School of Ophthalmology, Central South University, P.R.C., 18th Floor, the New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China; Aier Eye Institute, 18th Floor, The New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China
| | - Zekai Cui
- Aier Eye Institute, 18th Floor, The New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China
| | - Chengcheng Ding
- Aier Eye Institute, 18th Floor, The New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China
| | - Jianing Gu
- Aier Eye Institute, 18th Floor, The New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China
| | - Shengru Mao
- Aier Eye Institute, 18th Floor, The New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China
| | - Shangli Ji
- Aier Eye Institute, 18th Floor, The New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, 999077, Hong Kong, China; School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, 999077, Hong Kong, China
| | - Shibo Tang
- Aier School of Ophthalmology, Central South University, P.R.C., 18th Floor, the New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China; Aier Eye Institute, 18th Floor, The New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China; CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China.
| | - Jiansu Chen
- Aier School of Ophthalmology, Central South University, P.R.C., 18th Floor, the New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China; Aier Eye Institute, 18th Floor, The New Century Building, #198 Furong Middle Road, Changsha, Hunan 410015, China; Key Laboratory of Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou 510632, China.
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15
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Wong CWT, Sawhney A, Wu Y, Mak YW, Tian XY, Chan HF, Blocki A. Sourcing of human peripheral blood-derived myeloid angiogenic cells under xeno-free conditions for the treatment of critical limb ischemia. Stem Cell Res Ther 2022; 13:419. [PMID: 35964057 PMCID: PMC9375284 DOI: 10.1186/s13287-022-03095-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 07/26/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Critical limb ischemia (CLI) is the most severe form of peripheral artery disease and exhibits a high risk of lower extremity amputations. As even the most promising experimental approaches based on mesenchymal stem cells (MSCs) demonstrated only moderate therapeutic effects, we hypothesized that other cell types with intrinsic roles in angiogenesis may exhibit a stronger therapeutic potential. We have previously established a protocol to source human peripheral blood-derived angiogenic cells (BDACs). These cells promoted revascularization and took perivascular location at sites of angiogenesis, thus resembling hematopoietic pericytes, which were only described in vivo so far. We thus hypothesized that BDACs might have a superior ability to promote revascularization and rescue the affected limb in CLI. METHODS As standard BDAC sourcing techniques involve the use of animal-derived serum, we sought to establish a xeno- and/or serum-free protocol. Next, BDACs or MSCs were injected intramuscularly following the ligation of the iliac artery in a murine model. Their ability to enhance revascularization, impair necrosis and modulate inflammatory processes in the affected limb was investigated. Lastly, the secretomes of both cell types were compared to find potential indications for the observed differences in angiogenic potential. RESULTS From the various commercial media tested, one xeno-free medium enabled the derivation of cells that resembled functional BDACs in comparable numbers. When applied to a murine model of CLI, both cell types enhanced limb reperfusion and reduced necrosis, with BDACs being twice as effective as MSCs. This was also reflected in histological evaluation, where BDAC-treated animals exhibited the least muscle tissue degeneration. The BDAC secretome was enriched in a larger number of proteins with pro-angiogenic and anti-inflammatory properties, suggesting that the combination of those factors may be responsible for the superior therapeutic effect. CONCLUSIONS Functional BDACs can be sourced under xeno-free conditions paving the way for their safe clinical application. Since BDACs are derived from an easily accessible and renewable tissue, can be sourced in clinically relevant numbers and time frame and exceeded traditional MSCs in their therapeutic potential, they may represent an advantageous cell type for the treatment of CLI and other ischemic diseases.
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Affiliation(s)
- Christy Wing Tung Wong
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.,School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Apurva Sawhney
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.,School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Yalan Wu
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Yi Wah Mak
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.,School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Xiao Yu Tian
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.,School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.,Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Anna Blocki
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China. .,School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China. .,Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
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16
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Liang Y, Tan F, Sun X, Cui Z, Gu J, Mao S, Chan HF, Tang S, Chen J. Aberrant Retinal Pigment Epithelial Cells Derived from Induced Pluripotent Stem Cells of a Retinitis Pigmentosa Patient with the PRPF6 Mutation. Int J Mol Sci 2022; 23:ijms23169049. [PMID: 36012314 PMCID: PMC9409096 DOI: 10.3390/ijms23169049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/08/2022] [Accepted: 08/11/2022] [Indexed: 11/16/2022] Open
Abstract
Pre-mRNA processing factors (PRPFs) are vital components of the spliceosome and are involved in the physiological process necessary for pre-mRNA splicing to mature mRNA. As an important member, PRPF6 mutation resulting in autosomal dominant retinitis pigmentosa (adRP) is not common. Recently, we reported the establishment of an induced pluripotent stem cells (iPSCs; CSUASOi004-A) model by reprogramming the peripheral blood mononuclear cells of a PRPF6-related adRP patient, which could recapitulate a consistent disease-specific genotype. In this study, a disease model of retinal pigment epithelial (RPE) cells was generated from the iPSCs of this patient to further investigate the underlying molecular and pathological mechanisms. The results showed the irregular morphology, disorganized apical microvilli and reduced expressions of RPE-specific genes in the patient’s iPSC-derived RPE cells. In addition, RPE cells carrying the PRPF6 mutation displayed a decrease in the phagocytosis of fluorescein isothiocyanate-labeled photoreceptor outer segments and exhibited impaired cell polarity and barrier function. This study will benefit the understanding of PRPF6-related RPE cells and future cell therapy.
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Affiliation(s)
- Yuqin Liang
- Aier School of Ophthalmology, Central South University, Changsha 410015, China
- Aier Eye Institute, Changsha 410015, China
| | - Feng Tan
- Aier School of Ophthalmology, Central South University, Changsha 410015, China
- Aier Eye Institute, Changsha 410015, China
| | - Xihao Sun
- Aier School of Ophthalmology, Central South University, Changsha 410015, China
- Aier Eye Institute, Changsha 410015, China
| | - Zekai Cui
- Aier School of Ophthalmology, Central South University, Changsha 410015, China
- Aier Eye Institute, Changsha 410015, China
| | - Jianing Gu
- Aier Eye Institute, Changsha 410015, China
| | | | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Shibo Tang
- Aier School of Ophthalmology, Central South University, Changsha 410015, China
- Aier Eye Institute, Changsha 410015, China
- Correspondence: (S.T.); (J.C.); Tel.: +86-139-2510-0123 (S.T.); +86-186-7583-9029 (J.C.)
| | - Jiansu Chen
- Aier School of Ophthalmology, Central South University, Changsha 410015, China
- Aier Eye Institute, Changsha 410015, China
- Key Laboratory for Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou 510632, China
- Correspondence: (S.T.); (J.C.); Tel.: +86-139-2510-0123 (S.T.); +86-186-7583-9029 (J.C.)
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17
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Wu T, Chen K, Lai W, Zhou H, Wen X, Chan HF, Li M, Wang H, Tao Y. Bovine serum albumin-gold nanoclusters protein corona stabilized polystyrene nanoparticles as dual-color fluorescent nanoprobes for breast cancer detection. Biosens Bioelectron 2022; 215:114575. [PMID: 35868122 DOI: 10.1016/j.bios.2022.114575] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 06/24/2022] [Accepted: 07/12/2022] [Indexed: 11/02/2022]
Abstract
Breast cancer is the most prevalent malignancy and the first leading cause of cancer-related mortality among the female population worldwide. Approaches for precise and reliable detection of breast cancer cells, particularly in the nascent state, are desperately needed for elevating the survival rate of patients bearing the breast tumor. In this work, we successfully performed the sensitive, precise, and reliable breast cancer cell detection using facilely fabricated bovine serum albumin-gold nanocluster (BSA-AuNCs) protein corona stabilized, epithelial cell adhesion molecule (EpCAM) aptamer linked fluorescent polystyrene nanoparticle (PS NP), termed as PS-BSA-AuNCs-Apt. The rapidly adsorbed BSA-AuNCs hard protein corona without complicated covalent conjugation not only imparted excellent colloidal stability to the PS nanoparticles, but also offered numerous active anchors for the targeted EpCAM aptamers to locate. With the remarkable aid of the aptamers specifically targeting the EpCAM-positive breast cancer cells, the PS-BSA-AuNCs-Apt emitted strong and photostable dual-color fluorescent signals for precise and reliable cancer cell detection by overcoming the false signals. The specific identification potency of the PS-BSA-AuNCs-Apt system was further verified by successfully detecting the xenografted breast tumor tissue. Notably, to the best of our knowledge, the protein corona formed nanoprobes was exploited for direct tumor cell and tissue detection with high efficacy for the first time, demonstrating their promising potential in clinical tumor detection.
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Affiliation(s)
- Tingting Wu
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Keying Chen
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Wenjie Lai
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China; Department of Urology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Huicong Zhou
- College of Science, Changchun Institute of Technology, Changchun, 130012, China
| | - Xingqiao Wen
- Department of Urology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Science, The Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China; Guangdong Provincial Key Laboratory of Liver Disease, Guangzhou, 510630, China.
| | - Haixia Wang
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China.
| | - Yu Tao
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China.
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Cui Z, Liao K, Li S, Gu J, Wang Y, Ding C, Guo Y, Chan HF, Ma JH, Tang S, Chen J. LM22B-10 promotes corneal nerve regeneration through in vitro 3D co-culture model and in vivo corneal injury model. Acta Biomater 2022; 146:159-176. [PMID: 35562005 DOI: 10.1016/j.actbio.2022.05.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/21/2022] [Accepted: 05/05/2022] [Indexed: 11/01/2022]
Abstract
Corneal nerve wounding often causes abnormalities in the cornea and even blindness in severe cases. In this study, we construct a dorsal root ganglion-corneal stromal cell (DRG-CSC, DS) co-culture 3D model to explore the mechanism of corneal nerve regeneration. Firstly, this model consists of DRG collagen grafts sandwiched by orthogonally stacked and orderly arranged CSC-laden plastic compressed collagen. Nerve bundles extend into the entire corneal stroma within 14 days, and they also have orthogonal patterns. This nerve prevents CSCs from apoptosis in the serum withdrawal medium. The conditioned medium (CM) for CSCs in collagen scaffolds contains NT-3, IL-6, and other factors. Among them, NT-3 notably promotes the activation of ERK-CREB in the DRG, leading to the growth of nerve bundles, and IL-6 induces the upregulation of anti-apoptotic genes. Then, LM22B-10, an activator of the NT-3 receptor TrkB/TrkC, can also activate ERK-CREB to enhance nerve growth. After administering LM22B-10 eye drops to regular and diabetic mice with corneal wounding, LM22B-10 significantly improves the healing speed of the corneal epithelium, corneal sensitivity, and corneal nerve density. Overall, the DS co-culture model provides a promising platform and tools for the exploration of corneal physiological and pathological mechanisms, as well as the verification of drug effects in vitro. Meanwhile, we confirm that LM22B-10, as a non-peptide small molecule, has future potential in nerve wound repair. STATEMENT OF SIGNIFICANCE: The cornea accounts for most of the refractive power of the eye. Corneal nerves play an important role in maintaining corneal homeostasis. Once the corneal nerves are damaged, the corneal epithelium and stroma develop lesions. However, the mechanism of the interaction between corneal nerves and corneal cells is still not fully understood. Here, we construct a corneal stroma-nerve co-culture in vitro model and reveal that NT-3 expressed by stromal cells promotes nerve growth by activating the ERK-CREB pathway in nerves. LM22B-10, an activator of NT-3 receptors, can also induce nerve growth in vitro. Moreover, it is used as eye drops to enhance corneal epithelial wound healing, corneal nerve sensitivity and density of nerve plexus in corneal nerve wounding model in vivo.
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Fang Y, Liu Z, Wang H, Luo X, Xu Y, Chan HF, Lv S, Tao Y, Li M. Implantable Sandwich-like Scaffold/Fiber Composite Spatiotemporally Releasing Combretastatin A4 and Doxorubicin for Efficient Inhibition of Postoperative Tumor Recurrence. ACS Appl Mater Interfaces 2022; 14:27525-27537. [PMID: 35687834 DOI: 10.1021/acsami.2c02103] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Tumor recurrence is a critical conundrum in the postoperative therapy, on account of severe bleeding with disseminated tumor cells, residual tumor cells, and the rich nutrient and oxygen supply transported to tumors by the abundant blood vessels. Biodegradable drug-loaded implants, inserted in the resection cavity right away upon the surgery, possess bleeding prevention and efficient chemotherapeutic capabilities, considered to be a promising strategy to efficiently inhibit the recurrence of the solid tumor. Here, we developed a sandwich-like composite consisting of the combretastatin A4 (CA4)-loaded 3D-printed scaffold and doxorubicin (DOX)-loaded electrospun fiber (Scaffold-CA4@Fiber-DOX), presenting hemostatic, chemotherapeutic, and antibacterial potencies. The lyophilized 3D-printed scaffold with a porous structure rapidly absorbed and clotted the blood cells and disseminated tumor cells to prevent bleeding and tumor metastasis. Subsequently, the preferentially released CA4 from the scaffold disrupted the microtubules of the vascular endothelial cell, resulting in vascular deformation and consequent insufficient nutrient supply to the solid tumor. The sustained release of DOX from the sandwiched electrospun fiber dramatically inhibited the peripheral tumor cell proliferation. This all-in-one multifunctional implant system, combining efficient vascular disruption and chemotherapy, provides a promising strategy for postoperative tumor therapy.
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Affiliation(s)
- Youqiang Fang
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Department of Urology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Zheng Liu
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Department of Urology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Haixia Wang
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Department of Urology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Xing Luo
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Department of Urology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Yanteng Xu
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Department of Urology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Science, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Shixian Lv
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Yu Tao
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Department of Urology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Department of Urology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
- Guangdong Provincial Key Laboratory of Liver Disease, Guangzhou 510630, China
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20
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Xu H, Zhu Y, Xu J, Tong W, Hu S, Chen Y, Deng S, Yao H, Li J, Lee C, Chan HF. Injectable bioactive glass/sodium alginate hydrogel with immunomodulatory and angiogenic properties for enhanced tendon healing. Bioeng Transl Med 2022; 8:e10345. [PMID: 36684098 PMCID: PMC9842034 DOI: 10.1002/btm2.10345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 04/17/2022] [Accepted: 04/29/2022] [Indexed: 01/25/2023] Open
Abstract
Tendon healing is a complex process involving inflammation, proliferation, and remodeling, eventually achieving a state of hypocellularity and hypovascularity. Currently, few treatments can satisfactorily restore the structure and function of native tendon. Bioactive glass (BG) has been shown to possess immunomodulatory and angiogenic properties. In this study, we investigated whether an injectable hydrogel fabricated of BG and sodium alginate (SA) could be applied to enhance tenogenesis following suture repair of injured tendon. We demonstrated that BG/SA hydrogel significantly accelerated tenogenesis without inducing heterotopic ossification based on histological analysis. The therapeutic effect could attribute to increased angiogenesis and M1 to M2 phenotypic switch of macrophages within 7 days post-surgery. Morphological characterization demonstrated that BG/SA hydrogel partially reverted the pathological changes of Achilles tendon, including increased length and cross-sectional area (CSA). Finally, biomechanical test showed that BG/SA hydrogel significantly improved ultimate load, failure stress, and tensile modulus of the repaired tendon. In conclusion, administration of an injectable BG/SA hydrogel can be a novel and promising therapeutic approach to augment Achilles tendon healing in conjunction with surgical intervention.
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Affiliation(s)
- Hongtao Xu
- Musculoskeletal Research Laboratory, Department of Orthopedics and TraumatologyThe Chinese University of Hong KongHong Kong SARChina,Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong Kong SARChina,Department of OrthopedicsThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Yanlun Zhu
- Institute for Tissue Engineering and Regenerative Medicine, Faculty of MedicineThe Chinese University of Hong KongHong Kong SARChina,Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of MedicineThe Chinese University of Hong KongHong Kong SARChina
| | - Jiankun Xu
- Musculoskeletal Research Laboratory, Department of Orthopedics and TraumatologyThe Chinese University of Hong KongHong Kong SARChina,Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong Kong SARChina
| | - Wenxue Tong
- Musculoskeletal Research Laboratory, Department of Orthopedics and TraumatologyThe Chinese University of Hong KongHong Kong SARChina,Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong Kong SARChina
| | - Shiwen Hu
- Musculoskeletal Research Laboratory, Department of Orthopedics and TraumatologyThe Chinese University of Hong KongHong Kong SARChina,Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong Kong SARChina,School of Materials Science and EngineeringLanzhou University of TechnologyLanzhouChina
| | - Yi‐Fan Chen
- The Ph.D. Program for Translational Medicine, College of Medical Science and TechnologyTaipei Medical UniversityTaipeiTaiwan,Graduate Institute of Translational Medicine, College of Medical Science and TechnologyTaipei Medical UniversityTaipeiTaiwan,International Ph.D. Program for Translational Science, College of Medical Science and TechnologyTaipei Medical UniversityTaipeiTaiwan,Master Program in Clinical Genomics and Proteomics, School of PharmacyTaipei Medical UniversityTaipeiTaiwan
| | - Shuai Deng
- Institute for Tissue Engineering and Regenerative Medicine, Faculty of MedicineThe Chinese University of Hong KongHong Kong SARChina,Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of MedicineThe Chinese University of Hong KongHong Kong SARChina
| | - Hao Yao
- Musculoskeletal Research Laboratory, Department of Orthopedics and TraumatologyThe Chinese University of Hong KongHong Kong SARChina,Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong Kong SARChina
| | - Jie Li
- Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjingChina
| | - Chien‐Wei Lee
- Center for Translational Genomics ResearchChina Medical University Hospital, China Medical UniversityTaichungTaiwan
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, Faculty of MedicineThe Chinese University of Hong KongHong Kong SARChina,Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of MedicineThe Chinese University of Hong KongHong Kong SARChina,Hong Kong Branch of CAS Center for Excellence in Animal Evolution and GeneticsThe Chinese University of Hong KongHong Kong SARChina,Center for Neuromusculoskeletal Restorative MedicineHong Kong Science ParkHong Kong SARChina
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21
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Abstract
Intensive studies on stem cell therapy reveal that benefits of stem cells attribute to the paracrine effects. Hence, direct delivery of stem cell secretome to the injured site shows the comparative therapeutic efficacy of living cells while avoiding the potential limitations. However, conventional systemic administration of stem cell secretome often leads to rapid clearance in vivo. Therefore, a variety of different biomaterials are developed for sustained and controllable delivery of stem cell secretome to improve therapeutic efficiency. In this review, we first introduce current approaches for the preparation and characterization of stem cell secretome as well as strategies to improve their therapeutic efficacy and production. The up-to-date delivery platforms are also summarized, including nanoparticles, injectable hydrogels, microneedles, and scaffold patches. Meanwhile, we discuss the underlying therapeutic mechanism of stem cell secretome for the treatment of various diseases. In the end, future opportunities and challenges are proposed.
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Affiliation(s)
- Fenfang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Jiabin Zhang
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Ke Yi
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Haixia Wang
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Hongyan Wei
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Science, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Yu Tao
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.,Guangdong Provincial Key Laboratory of Liver Disease, Guangzhou 510630, China
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22
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Kong H, Yi K, Zheng C, Lao YH, Zhou H, Chan HF, Wang H, Tao Y, Li M. Membrane-fusogenic biomimetic particles: a new bioengineering tool learned from nature. J Mater Chem B 2022; 10:6841-6858. [PMID: 35781483 DOI: 10.1039/d2tb00632d] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Membrane fusion, a fundamental biological process of the fusion of the membrane composition between cells within natural organisms, is vital for cell-cell communication and cargo transport between the living cells....
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Affiliation(s)
- Huimin Kong
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| | - Ke Yi
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| | - Chunxiong Zheng
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| | - Yeh-Hsing Lao
- Department of Pharmaceutical Sciences, University at Buffalo, The State University of New York, Buffalo, NY 14214, USA
| | - Huicong Zhou
- College of Science, Changchun Institute of Technology, Changchun 130012, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Science, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Haixia Wang
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| | - Yu Tao
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
- Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou 510630, China
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23
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Su R, Zhang Y, Zhang J, Wang H, Luo Y, Chan HF, Tao Y, Chen Z, Li M. Nanomedicine to advance the treatment of bacteria-induced acute lung injury. J Mater Chem B 2021; 9:9100-9115. [PMID: 34672317 DOI: 10.1039/d1tb01770e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Bacteria-induced acute lung injury (ALI) is associated with a high mortality rate due to the lack of an effective treatment. Patients often rely on supportive care such as low tidal volume ventilation to alleviate the symptoms. Nanomedicine has recently received much attention owing to its premium benefits of delivering drugs in a sustainable and controllable manner while minimizing the potential side effects. It can effectively improve the prognosis of bacteria-induced ALI through targeted delivery of drugs, regulation of multiple inflammatory pathways, and combating antibiotic resistance. Hence, in this review, we first discuss the pathogenesis of ALI and its potential therapeutics. In particular, the state-of-the-art nanomedicines for the treatment of bacteria-induced ALI are highlighted, including their administration routes, in vivo distribution, and clearance. Furthermore, the available bacteria-induced ALI animal models are also summarized. In the end, future perspectives of nanomedicine for ALI treatment are proposed.
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Affiliation(s)
- Ruonan Su
- Center for Nanomedicine, Department of Pediatrics and Department of Allergy, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China. .,Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Yu Zhang
- Department of Biological and Environmental Engineering, Cornell University, Ithaca 14853, USA
| | - Jiabin Zhang
- Center for Nanomedicine, Department of Pediatrics and Department of Allergy, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| | - Haixia Wang
- Center for Nanomedicine, Department of Pediatrics and Department of Allergy, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China. .,Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Yun Luo
- Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510630, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Science, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Yu Tao
- Center for Nanomedicine, Department of Pediatrics and Department of Allergy, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China. .,Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Zhuanggui Chen
- Center for Nanomedicine, Department of Pediatrics and Department of Allergy, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| | - Mingqiang Li
- Center for Nanomedicine, Department of Pediatrics and Department of Allergy, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China. .,Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou 510630, China
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24
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Deng S, Zhu Y, Zhao X, Chen J, Tuan RS, Chan HF. Efficient fabrication of monodisperse hepatocyte spheroids and encapsulation in hybrid hydrogel with controllable extracellular matrix effect. Biofabrication 2021; 14. [PMID: 34587587 DOI: 10.1088/1758-5090/ac2b89] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 09/29/2021] [Indexed: 11/12/2022]
Abstract
Three-dimensional (3D) culture techniques, such as spheroid and organoid cultures, have gained increasing interest in biomedical research. However, the understanding and control of extracellular matrix (ECM) effect in spheroid and organoid culture has been limited. Here, we report a biofabrication approach to efficiently form uniform-sized 3D hepatocyte spheroids and encapsulate them in a hybrid hydrogel composed of alginate and various ECM molecules. Cells were seeded in a microwell platform to form spheroid before being encapsulated directly in a hybrid hydrogel containing various ECM molecules, including collagen type I (COL1), collagen type IV (COL4), fibronectin (FN), and laminin (LM). A systematic analysis of the effect of ECM molecules on the primary mouse hepatocyte phenotype was then performed. Our results showed that hydrogel encapsulation of hepatocyte spheroid promoted hepatic marker expression and secretory functions. In addition, different ECM molecules elicited distinct effects on hepatic functions in 3D encapsulated hepatocyte spheroids, but not in 2D hepatocyte and 3D non-encapsulated spheroids. When encapsulated in hybrid hydrogel containing LM alone or COL1 alone, hepatocyte spheroids exhibited improved hepatic functions overall. Analysis of gene and protein expression showed an upregulation of integrinα1 and integrinα6 when LM was introduced in the hybrid hydrogel, suggesting a possible role of integrin signaling involved in the ECM effect. Finally, a combinatorial screening was performed to demonstrate the potential to screen a multitude of 3D microenvironments of varying ECM combinations that exhibited synergistic influence, indicating a strong positive effect of COL1 and a negative interaction effect of COL1·LM on both albumin and urea secretion. These findings illustrate the broad application potential of this biofabrication approach in identifying optimal ECM composition(s) for engineering 3D tissue, and elucidating defined ECM cues for tissue engineering and regenerative medicine.
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Affiliation(s)
- Shuai Deng
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China
| | - Yanlun Zhu
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China
| | - Xiaoyu Zhao
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China
| | - Jiansu Chen
- Key Laboratory for Regenerative Medicine, Ministry of Education of China, Jinan University, Guangzhou, People's Republic of China.,Aier Eye Institute, Changsha, People's Republic of China.,Aier School of Ophthalmology, Central South University, Changsha, People's Republic of China.,Institute of Ophthalmology, Medical College, Jinan University, Guangzhou, People's Republic of China.,Department of Ophthalmology, First Affiliated Hospital of Jinan University, Guangzhou, People's Republic of China
| | - Rocky S Tuan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,Hong Kong Branch of CAS Center for Excellence in Animal Evolution and Genetics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China
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25
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Zhu Y, Deng S, Zhao X, Xia G, Zhao R, Chan HF. Deciphering and engineering tissue folding: A mechanical perspective. Acta Biomater 2021; 134:32-42. [PMID: 34325076 DOI: 10.1016/j.actbio.2021.07.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 07/16/2021] [Accepted: 07/21/2021] [Indexed: 12/19/2022]
Abstract
The folding of tissues/organs into complex shapes is a common phenomenon that occurs in organisms such as animals and plants, and is both structurally and functionally important. Deciphering the process of tissue folding and applying this knowledge to engineer folded systems would significantly advance the field of tissue engineering. Although early studies focused on investigating the biochemical signaling events that occur during the folding process, the physical or mechanical aspects of the process have received increasing attention in recent years. In this review, we will summarize recent findings on the mechanical aspects of folding and introduce strategies by which folding can be controlled in vitro. Emphasis will be placed on the folding events triggered by mechanical effects at the cellular and tissue levels and on the different cell- and biomaterial-based approaches used to recapitulate folding. Finally, we will provide a perspective on the development of engineering tissue folding toward preclinical and clinical translation. STATEMENT OF SIGNIFICANCE: Tissue folding is a common phenomenon in a variety of organisms including human, and has been shown to serve important structural and functional roles. Understanding how folding forms and applying the concept in tissue engineering would represent an advance of the research field. Recently, the physical or mechanical aspect of tissue folding has gained increasing attention. In this review, we will cover recent findings of the mechanical aspect of folding mechanisms, and introduce strategies to control the folding process in vitro. We will also provide a perspective on the future development of the field towards preclinical and clinical translation of various bio fabrication technologies.
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Affiliation(s)
- Yanlun Zhu
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Shuai Deng
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Xiaoyu Zhao
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Guanggai Xia
- Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Rd, Shanghai 200233, China
| | - Ruike Zhao
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China; Hong Kong Branch of CAS Center for Excellence in Animal Evolution and Genetics, Hong Kong SAR, China.
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26
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Whyte S, Bray LJ, Chan HF, Chan RJ, Hunt J, Peltz TS, Dulleck U, Hutmacher DW. Knowledge, consultation time, and choice in breast reconstruction. Br J Surg 2021; 108:e168-e169. [PMID: 33793770 DOI: 10.1093/bjs/znab013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/05/2021] [Accepted: 01/06/2021] [Indexed: 11/12/2022]
Affiliation(s)
- S Whyte
- School of Economics and Finance, Queensland University of Technology, Brisbane, Queensland, Australia.,Centre for Behavioural Economics, Society and Technology, Queensland University of Technology, Brisbane, Queensland, Australia.,Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Queensland, Australia.,ARC Training Centre for Cell and Tissue Engineering Technologies, Queensland University of Technology, Brisbane, Queensland, Australia
| | - L J Bray
- Centre for Behavioural Economics, Society and Technology, Queensland University of Technology, Brisbane, Queensland, Australia.,School of Mechanical, Medical and Process Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Queensland, Australia.,ARC Training Centre for Cell and Tissue Engineering Technologies, Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - H F Chan
- School of Economics and Finance, Queensland University of Technology, Brisbane, Queensland, Australia.,Centre for Behavioural Economics, Society and Technology, Queensland University of Technology, Brisbane, Queensland, Australia
| | - R J Chan
- Princess Alexandra Hospital, Metro South Health, School of Nursing, and Cancer and Palliative Care Outcomes Centre, Queensland University of Technology, Brisbane, Queensland, Australia
| | - J Hunt
- Surgical and Orthopaedic Research Laboratories, Prince of Wales Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - T S Peltz
- Surgical and Orthopaedic Research Laboratories, Prince of Wales Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - U Dulleck
- School of Economics and Finance, Queensland University of Technology, Brisbane, Queensland, Australia.,Centre for Behavioural Economics, Society and Technology, Queensland University of Technology, Brisbane, Queensland, Australia.,ARC Training Centre for Cell and Tissue Engineering Technologies, Queensland University of Technology, Brisbane, Queensland, Australia
| | - D W Hutmacher
- Centre for Behavioural Economics, Society and Technology, Queensland University of Technology, Brisbane, Queensland, Australia.,ARC Training Centre in Additive Biomanufacturing, Queensland University of Technology, Brisbane, Queensland, Australia.,ARC Training Centre for Multiscale 3D Imaging, Modelling and Manufacturing, Queensland University of Technology, Brisbane, Queensland, Australia
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Zheng C, Zhang J, Chan HF, Hu H, Lv S, Na N, Tao Y, Li M. Engineering Nano-Therapeutics to Boost Adoptive Cell Therapy for Cancer Treatment. Small Methods 2021; 5:e2001191. [PMID: 34928094 DOI: 10.1002/smtd.202001191] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/22/2021] [Indexed: 06/14/2023]
Abstract
Although adoptive transfer of therapeutic cells to cancer patients is demonstrated with great success and fortunately approved for the treatment of leukemia and B-cell lymphoma, potential issues, including the unclear mechanism, complicated procedures, unfavorable therapeutic efficacy for solid tumors, and side effects, still hinder its extensive applications. The explosion of nanotechnology recently has led to advanced development of novel strategies to address these challenges, facilitating the design of nano-therapeutics to improve adoptive cell therapy (ACT) for cancer treatment. In this review, the emerging nano-enabled approaches, that design multiscale artificial antigen-presenting cells for cell proliferation and stimulation in vitro, promote the transducing efficiency of tumor-targeting domains, engineer therapeutic cells for in vivo imaging, tumor infiltration, and in vivo functional sustainability, as well as generate tumoricidal T cells in vivo, are summarized. Meanwhile, the current challenges and future perspectives of the nanostrategy-based ACT for cancer treatment are also discussed in the end.
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Affiliation(s)
- Chunxiong Zheng
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Jiabin Zhang
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Science, The Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Hanze Hu
- Department of Biomedical Engineering, Columbia University, New York, NY, 10027, USA
| | - Shixian Lv
- Department of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, 98195, USA
| | - Ning Na
- Department of Kidney Transplantation, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Yu Tao
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
- Guangdong Provincial Key Laboratory of Liver Disease, Guangzhou, 510630, China
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Lam KCK, Fung EML, Chan HF, Louie FTM, Chan F. Metacognitive-Focused Occupational Therapy for Substance Abuse in Medical-Social Service Collaboration: a Case Report. East Asian Arch Psychiatry 2021; 31:19-20. [PMID: 33753573 DOI: 10.12809/eaap2008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We describe a 26-year-old man who underwent Metacognitive-Focused Occupational Therapy for his substance abuse problems.
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Affiliation(s)
- K C K Lam
- Occupational Therapy Department, Alice Ho Miu Ling Nethersole Hospital, Hong Kong
| | - E M L Fung
- Occupational Therapy Department, Alice Ho Miu Ling Nethersole Hospital, Hong Kong
| | - H F Chan
- Cheer Lutheran Centre (Counselling Centre for Psychotropic Substance Abusers)
| | - F T M Louie
- Occupational Therapy Department, Alice Ho Miu Ling Nethersole Hospital, Hong Kong
| | - F Chan
- Department of Psychiatry, North District Hospital, Hong Kong
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Zhu Y, Deng S, Ma Z, Kong L, Li H, Chan HF. Macrophages activated by akermanite/alginate composite hydrogel stimulate migration of bone marrow-derived mesenchymal stem cells. Biomed Mater 2021; 16. [PMID: 33607642 DOI: 10.1088/1748-605x/abe80a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 02/19/2021] [Indexed: 12/12/2022]
Abstract
Akermanite (Aker) has been widely used for bone regeneration through regulating osteogenesis of bone marrow-derived mesenchymal stem cells (BMSCs). Previously, we developed an injectable Aker/sodium alginate (Aker/SA) hydrogel to facilitate bone regeneration. However, the effect of this injectable hydrogel on the in vivo response, particularly the inflammatory response, has not been fully understood. Here, to elucidate the response following the implantable of Aker/SA hydrogel, we investigated the interaction among Aker/SA hydrogel, inflammatory cells and cells involved in bone regeneration (BMSCs). Specifically, we cultured macrophages (RAW 264.7 cell line) with the extract liquid of Aker/SA and assessed their phenotypic changes. Subsequently, BMSCs (2*10^5 cells per 24 well) were cultured with different conditioned media including that of Aker/SA hydrogel-activated macrophages to investigate their effect on cell migration. Finally, Aker/SA hydrogel was injected subcutaneously (1*10^6 cells per ml) in rat to verify its effect in vivo. The in vitro results indicated that Aker/SA hydrogel activated macrophages towards M2 phenotype and stimulated macrophages to express anti-inflammatory factors. In addition, the conditioned medium collected from Aker-activated macrophages could accelerate the migration of BMSCs in 24h. Consistent with the in vitro results, when the Aker/SA hydrogel was injected subcutaneously, more M2 macrophages could be observed than when the SA solution was injected after 7 days. Besides, when BMSCs were delivered via subcutaneous injection, more BMSCs were recruited by the Aker/SA hydrogel than the SA solution. All these results suggest that the Aker/SA hydrogel can modulate the immune environment at the implantation site and subsequently recruit BMSCs, which can be one of the mechanisms through which the Aker/SA hydrogel accelerates new bone formation.
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Affiliation(s)
- Yanlun Zhu
- Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, China, Shanghai, 200030, CHINA
| | - Shuai Deng
- The Chinese University of Hong Kong, Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China, Hong Kong, 000000, HONG KONG
| | - Zhijie Ma
- Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, China, Shanghai, 200030, CHINA
| | - Lingzhi Kong
- Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, China, Shanghai, 200030, CHINA
| | - Haiyan Li
- Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, China, Shanghai, 200030, CHINA
| | - Hon Fai Chan
- The Chinese University of Hong Kong, Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China, Hong Kong, 000000, HONG KONG
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30
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Zhang J, Chan HF, Wang H, Shao D, Tao Y, Li M. Stem cell therapy and tissue engineering strategies using cell aggregates and decellularized scaffolds for the rescue of liver failure. J Tissue Eng 2021; 12:2041731420986711. [PMID: 35003615 PMCID: PMC8733710 DOI: 10.1177/2041731420986711] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 12/18/2020] [Indexed: 12/11/2022] Open
Abstract
Liver failure is a lethal condition with hepatocellular dysfunction, and liver transplantation is presently the only effective treatment. However, due to the limited availability of donors and the potential immune rejection, novel therapeutic strategies are actively sought to restore the normal hepatic architectures and functions, especially for livers with inherited metabolic dysfunctions or chronic diseases. Although the conventional cell therapy has shown promising results, the direct infusion of hepatocytes is hampered by limited hepatocyte sources, poor cell viability, and engraftment. Hence, this review mainly highlights the role of stem cells and progenitors as the alternative cell source and summarizes the potential approaches based on tissue engineering to improve the delivery efficiency of cells. Particularly, the underlying mechanisms for cell therapy using stem cells and progenitors are discussed in two main aspects: paracrine effect and cell differentiation. Moreover, tissue-engineering approaches using cell aggregates and decellularized liver scaffolds for bioengineering of functional hepatic constructs are discussed and compared in terms of the potential to replicate liver physiological structures. In the end, a potentially effective strategy combining the premium advantages of stem cell aggregates and decellularized liver scaffolds is proposed as the future direction of liver tissue engineering and regeneration.
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Affiliation(s)
- Jiabin Zhang
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Liver Disease, Guangzhou, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Haixia Wang
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dan Shao
- Institutes of Life Sciences, School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, China
| | - Yu Tao
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Liver Disease, Guangzhou, China
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Abstract
Light is a particularly appealing tool for on-demand drug delivery due to its noninvasive nature, ease of application and exquisite temporal and spatial control. Great progress has been achieved in the development of novel light-driven drug delivery strategies with both breadth and depth. Light-controlled drug delivery platforms can be generally categorized into three groups: photochemical, photothermal, and photoisomerization-mediated therapies. Various advanced materials, such as metal nanoparticles, metal sulfides and oxides, metal-organic frameworks, carbon nanomaterials, upconversion nanoparticles, semiconductor nanoparticles, stimuli-responsive micelles, polymer- and liposome-based nanoparticles have been applied for light-stimulated drug delivery. In view of the increasing interest in on-demand targeted drug delivery, we review the development of light-responsive systems with a focus on recent advances, key limitations, and future directions.
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Affiliation(s)
- Yu Tao
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Science, The Chinese University of Hong Kong, Hong Kong, China
| | - Bingyang Shi
- International Joint Center for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Kam W Leong
- Department of Biomedical Engineering, Department of Systems Biology, Columbia University Medical Center, New York, NY 10032, USA
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Zhu Y, Ma Z, Kong L, He Y, Chan HF, Li H. Modulation of macrophages by bioactive glass/sodium alginate hydrogel is crucial in skin regeneration enhancement. Biomaterials 2020; 256:120216. [DOI: 10.1016/j.biomaterials.2020.120216] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 06/19/2020] [Accepted: 06/20/2020] [Indexed: 12/15/2022]
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Cui Z, Guo Y, Zhou Y, Mao S, Yan X, Zeng Y, Ding C, Chan HF, Tang S, Tang L, Chen J. Transcriptomic Analysis of the Developmental Similarities and Differences Between the Native Retina and Retinal Organoids. Invest Ophthalmol Vis Sci 2020; 61:6. [PMID: 32150248 PMCID: PMC7401421 DOI: 10.1167/iovs.61.3.6] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Purpose We performed a bioinformatic transcriptome analysis to determine the alteration of gene expression between the native retina and retinal organoids in both mice and humans. Methods The datasets of mouse native retina (GSE101986), mouse retinal organoids (GSE102794), human native retina (GSE104827), and human retinal organoids (GSE119320) were obtained from Gene Expression Omnibus. After normalization, a principal component analysis was performed to categorize the samples. The genes were clustered to classify them. A functional analysis was performed using the bioinformatics tool Gene ontology enrichment to analyze the biological processes of selected genes and cellular components. Results The development of retinal organoids is slower than that in the native retina. In the early stage, cell proliferation predominates. Subsequently, neural differentiation is dominant. In the later stage, the dominant differentiated cells are photoreceptors. Additionally, the fatty acid metabolic process and mitochondria-related genes are upregulated over time, and the glycogen catabolic process and activin receptors are gradually downregulated in human retinal organoids. However, these trends are opposite in mouse retinal organoids. There are two peaks in mitochondria-related genes, one in the early development period and another during the photoreceptor development period. It takes about five times longer for human retinal development to achieve similar levels of mouse retinal development. Conclusions Our study reveals the similarities and differences in the developmental features of retinal organoids as well as the corresponding relationship between mouse and human retinal development.
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Ng KTF, Chau CM, Chan HF, Cheng LF, Ma KF, Chan KM. Percutaneous Repair of Inadvertent Brachiocephalic Arterial Puncture by Closure Device: A Case Report. Hong Kong Journal of Radiology 2020. [DOI: 10.12809/hkjr2017125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- KTF Ng
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - CM Chau
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - HF Chan
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - LF Cheng
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - KF Ma
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - KM Chan
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
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35
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Zhao X, Zhu Y, Laslett AL, Chan HF. Hepatic Differentiation of Stem Cells in 2D and 3D Biomaterial Systems. Bioengineering (Basel) 2020; 7:E47. [PMID: 32466173 PMCID: PMC7356247 DOI: 10.3390/bioengineering7020047] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/18/2020] [Accepted: 05/22/2020] [Indexed: 02/06/2023] Open
Abstract
A critical shortage of donor livers for treating end-stage liver failure signifies the urgent need for alternative treatment options. Hepatocyte-like cells (HLC) derived from various stem cells represent a promising cell source for hepatocyte transplantation, liver tissue engineering, and development of a bioartificial liver assist device. At present, the protocols of hepatic differentiation of stem cells are optimized based on soluble chemical signals introduced in the culture medium and the HLC produced typically retain an immature phenotype. To promote further hepatic differentiation and maturation, biomaterials can be designed to recapitulate cell-extracellular matrix (ECM) interactions in both 2D and 3D configurations. In this review, we will summarize and compare various 2D and 3D biomaterial systems that have been applied to hepatic differentiation, and highlight their roles in presenting biochemical and physical cues to different stem cell sources.
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Affiliation(s)
- Xiaoyu Zhao
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China; (X.Z.); (Y.Z.)
- Key Laboratory for Regenerative Medicine, Ministry of Education, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Yanlun Zhu
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China; (X.Z.); (Y.Z.)
- Key Laboratory for Regenerative Medicine, Ministry of Education, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Andrew L. Laslett
- CSIRO Manufacturing, Clayton, Victoria 3168, Australia;
- Australian Regenerative Medicine Institute, Monash University, Victoria 3800, Australia
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China; (X.Z.); (Y.Z.)
- Key Laboratory for Regenerative Medicine, Ministry of Education, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China
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Woo SC, Yung KS, Wong T, Yu ELM, Li SK, Chan HF, Chan CH, Lee YC, Chan JMC, Leung WS. Imaging findings of critically ill patients with COVID-19 pneumonia: a case series. Hong Kong Med J 2020; 26:236-239. [PMID: 32362589 DOI: 10.12809/hkmj208441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- S C Woo
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - K S Yung
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - T Wong
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - E L M Yu
- Clinical Research Centre, Princess Margaret Hospital, Hong Kong
| | - S K Li
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - H F Chan
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - C H Chan
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - Y C Lee
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - J M C Chan
- Department of Medicine and Geriatrics, Princess Margaret Hospital, Hong Kong
| | - W S Leung
- Department of Medicine and Geriatrics, Princess Margaret Hospital, Hong Kong
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Affiliation(s)
- YC Lee
- Diagnostic Radiology Department, Princess Margaret Hospital, Laichikok, Hong Kong
| | - NY Pan
- Diagnostic Radiology Department, Princess Margaret Hospital, Laichikok, Hong Kong
| | - HF Chan
- Diagnostic Radiology Department, Princess Margaret Hospital, Laichikok, Hong Kong
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38
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Chan TS, Pan NY, Chan HF. Magnetic Resonance Imaging of Anterior Cruciate Ligament Repair and Complications: a Pictorial Essay. Hong Kong Journal of Radiology 2019. [DOI: 10.12809/hkjr1916930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- TS Chan
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - NY Pan
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - HF Chan
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
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39
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Jing Y, Zhou Y, Wang C, Liu J, Guo Y, Mao S, Chan HF, Tang S, Chen J. Establishment of a non-integrate iPS cell line CSUASOi002-A, from urine-derived cells of a female patient with macular corneal dystrophy carrying compound heterozygous CHST6 mutations. Stem Cell Res 2019; 41:101598. [PMID: 31669782 DOI: 10.1016/j.scr.2019.101598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 09/16/2019] [Accepted: 09/19/2019] [Indexed: 12/27/2022] Open
Abstract
We report the human induced pluripotent stem cell line (iPSC) CSUASOi002-A, generated from urine-derived cells (UCs) from a 51-year-old female patient carrying compound heterozygous mutations (c.62_63delTinsGA and c.C892T) in the carbohydrate sulfotransferase 6 gene (CHST6). This patient was from a Chinese family of three siblings with macular corneal dystrophy (MCD). Patient UCs were reprogrammed by electroporation using the episomal plasmids (OCT4, SOX2, KLF4, l-MYC, LIN28 and shP53). The human MCD-UiPS cell line CSUASOi002-A retained the disease-associated genotype, while expressed pluripotent stem cell markers and could be differentiated into cells of all three germ layers.
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Affiliation(s)
- Yutong Jing
- Aier School of Ophthalmology, Central South University, P.R.C., 18th floor, the New century building, #198 Furong Middle Road, Changsha, Hunan 410015, PR China; Aier Eye Institute, 18th floor, the New century building, #198 Furong Middle Road, Changsha, Hunan 410015, PR China
| | - Yalan Zhou
- Aier School of Ophthalmology, Central South University, P.R.C., 18th floor, the New century building, #198 Furong Middle Road, Changsha, Hunan 410015, PR China; Aier Eye Institute, 18th floor, the New century building, #198 Furong Middle Road, Changsha, Hunan 410015, PR China
| | - Congxiang Wang
- Changsha Aier Eye Hospital, #388 Furong Middle Road, Changsha, Hunan 410015, RP China
| | - Jian Liu
- Aier Eye Institute, 18th floor, the New century building, #198 Furong Middle Road, Changsha, Hunan 410015, PR China
| | - Yonglong Guo
- Key Laboratory for Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou 510632, RP China
| | - Shengru Mao
- Aier School of Ophthalmology, Central South University, P.R.C., 18th floor, the New century building, #198 Furong Middle Road, Changsha, Hunan 410015, PR China; Aier Eye Institute, 18th floor, the New century building, #198 Furong Middle Road, Changsha, Hunan 410015, PR China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, PR China; School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, PR China
| | - Shibo Tang
- Aier School of Ophthalmology, Central South University, P.R.C., 18th floor, the New century building, #198 Furong Middle Road, Changsha, Hunan 410015, PR China; Aier Eye Institute, 18th floor, the New century building, #198 Furong Middle Road, Changsha, Hunan 410015, PR China; CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai 200031, PR China.
| | - Jiansu Chen
- Aier School of Ophthalmology, Central South University, P.R.C., 18th floor, the New century building, #198 Furong Middle Road, Changsha, Hunan 410015, PR China; Aier Eye Institute, 18th floor, the New century building, #198 Furong Middle Road, Changsha, Hunan 410015, PR China; Key Laboratory for Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou 510632, RP China; Institute of Ophthalmology, Medical College, Jinan University, Guangzhou 510632, RP China.
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Chan RLS, Chan CH, Chan HF, Pan NY. The many facets of neuropathic arthropathy. BJR Open 2019; 1:20180039. [PMID: 33178926 PMCID: PMC7592473 DOI: 10.1259/bjro.20180039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 07/08/2019] [Accepted: 07/10/2019] [Indexed: 11/05/2022] Open
Abstract
Neuropathic arthropathy, also known as Charcot arthropathy, refers to progressive and occasionally rapid joint destruction that results from underlying disorders of the nervous system. This pictorial essay aims to illustrate various radiologic findings in neuropathic arthropathy using various examples in the upper and lower limbs and in the spine. Pearls for radiologic diagnosis, clinical differential considerations and possible complications are discussed individually for each joint. MR imaging techniques for differentiating infection and neuropathic arthropathy are explained with examples. Management issues are outlined.
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Affiliation(s)
- R L S Chan
- Princess Margaret Hospital, Department of Radiology, Hong Kong,
| | - C H Chan
- Princess Margaret Hospital, Department of Radiology, Hong Kong,
| | - H F Chan
- Princess Margaret Hospital, Department of Radiology, Hong Kong,
| | - N Y Pan
- Princess Margaret Hospital, Department of Radiology, Hong Kong,
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41
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Chan HF, Lai KW, Yung AWT, Luk WH, Cheng LF, Ma JKF. Transcatheter arterial embolisation can be the standard treatment for non-variceal upper gastrointestinal bleeding refractory to endoscopy. Hong Kong Med J 2019; 25:164-166. [PMID: 30971510 DOI: 10.12809/hkmj187486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- H F Chan
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - K W Lai
- Department of Surgery, Princess Margaret Hospital, Laichikok, Hong Kong
| | - A W T Yung
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - W H Luk
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - L F Cheng
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - J K F Ma
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
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Liu X, Steiger C, Lin S, Parada GA, Liu J, Chan HF, Yuk H, Phan NV, Collins J, Tamang S, Traverso G, Zhao X. Ingestible hydrogel device. Nat Commun 2019; 10:493. [PMID: 30700712 PMCID: PMC6353937 DOI: 10.1038/s41467-019-08355-2] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 12/20/2018] [Indexed: 11/09/2022] Open
Abstract
Devices that interact with living organisms are typically made of metals, silicon, ceramics, and plastics. Implantation of such devices for long-term monitoring or treatment generally requires invasive procedures. Hydrogels offer new opportunities for human-machine interactions due to their superior mechanical compliance and biocompatibility. Additionally, oral administration, coupled with gastric residency, serves as a non-invasive alternative to implantation. Achieving gastric residency with hydrogels requires the hydrogels to swell very rapidly and to withstand gastric mechanical forces over time. However, high swelling ratio, high swelling speed, and long-term robustness do not coexist in existing hydrogels. Here, we introduce a hydrogel device that can be ingested as a standard-sized pill, swell rapidly into a large soft sphere, and maintain robustness under repeated mechanical loads in the stomach for up to one month. Large animal tests support the exceptional performance of the ingestible hydrogel device for long-term gastric retention and physiological monitoring.
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Affiliation(s)
- Xinyue Liu
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Christoph Steiger
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Shaoting Lin
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - German Alberto Parada
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Ji Liu
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Hon Fai Chan
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Hyunwoo Yuk
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Nhi V Phan
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Joy Collins
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Siddartha Tamang
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Giovanni Traverso
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Xuanhe Zhao
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
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Abstract
Protein-based therapies hold great promise for treating many diseases. Nevertheless, the challenges of producing therapies with targeted attributes via standardized processes may hinder the development of protein formulations and clinical translation of the advanced therapies. Microfluidics represents a promising technology to develop protein formulations with pre-programmed functional characteristics, including size, morphology, and controlled drug release property. In this review, we discuss some examples of adopting microfluidics for fabricating particle- and fiber/tube-based formulations and highlight the advantages of microfluidics-assisted fabrication.
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Affiliation(s)
- Hu Meng
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China, .,School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China,
| | - Shuai Deng
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China, .,School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China,
| | - Yajing You
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China, .,School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China,
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Zhang J, Fang X, Li Z, Chan HF, Lin Z, Wang Y, Chen M. Redox-sensitive micelles composed of disulfide-linked Pluronic-linoleic acid for enhanced anticancer efficiency of brusatol. Int J Nanomedicine 2018; 13:939-956. [PMID: 29491708 PMCID: PMC5815479 DOI: 10.2147/ijn.s130696] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Brusatol (Bru) exhibits promising anticancer effects, with both proliferation inhibition and chemoresistance amelioration activity. However, the poor solubility and insufficient intracellular delivery of Bru greatly restrict its application. Herein, to simultaneously utilize the advantages of Pluronics as drug carriers and tumor microenvironment-responsive drug release profiles, a flexible amphiphilic copolymer with a polymer skeleton, that is, Pluronic® F68 grafting with linoleic acid moieties by redox-reducible disulfide bonds (F68-SS-LA), was synthesized. After characterization by 1H-nuclear magnetic resonance and Fourier transform infrared spectroscopy, the redox-sensitive F68-SS-LA micelles were self-assembled in a much lower critical micelle concentration than that of the unmodified F68 copolymer. Bru was loaded in micelles (Bru/SS-M) with high loading efficiency, narrow size distribution, and excellent storage stability. The redox-sensitive Bru/SS-M exhibited rapid particle dissociation and drug release in response to a redox environment. Based on the enhanced cellular internalization, Bru/SS-M achieved higher cytotoxicity in both Bel-7402 and MCF-7 cells compared with free Bru and nonreducible micelles. The improved anticancer effect was attributed to the remarkably decreased mitochondrial membrane potential and increased reactive oxygen species level as well as apoptotic rate. These results demonstrated that F68-SS-LA micelles possess great potential as an efficient delivery vehicle for Bru to promote its anticancer efficiency via an oxidation pathway.
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Affiliation(s)
- Jinming Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Xiaobin Fang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Zeyong Li
- Department of Laboratory Medicine, Guangdong No 2 Provincial People's Hospital, Guangzhou, China
| | - Hon Fai Chan
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Zhixiu Lin
- Faculty of Science, School of Chinese Medicine, Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Meiwan Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
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45
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Guo Z, Lin L, Chen J, Zhou X, Chan HF, Chen X, Tian H, Chen M. Poly(ethylene glycol)-poly-l-glutamate complexed with polyethyleneimine−polyglycine for highly efficient gene delivery in vitro and in vivo. Biomater Sci 2018; 6:3053-3062. [DOI: 10.1039/c8bm00503f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The highly efficient gene delivery system with effective serum resistant capacity is promising for cancer therapy.
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Affiliation(s)
- Zhaopei Guo
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao 999078
- China
| | - Lin Lin
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Jie Chen
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Xingzhi Zhou
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao 999078
- China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine
- School of Biomedical Science
- The Chinese University of Hong Kong
- Hong Kong
- China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Huayu Tian
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Meiwan Chen
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao 999078
- China
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46
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Zhang J, Wang L, Fai Chan H, Xie W, Chen S, He C, Wang Y, Chen M. Co-delivery of paclitaxel and tetrandrine via iRGD peptide conjugated lipid-polymer hybrid nanoparticles overcome multidrug resistance in cancer cells. Sci Rep 2017; 7:46057. [PMID: 28470171 PMCID: PMC5415764 DOI: 10.1038/srep46057] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 03/06/2017] [Indexed: 01/13/2023] Open
Abstract
One of the promising strategies to overcome tumor multidrug resistance (MDR) is to deliver anticancer drug along with P-glycoprotein (P-gp) inhibitor simultaneously. To enhance the cancer cellular internalization and implement the controlled drug release, herein an iRGD peptide-modified lipid-polymer hybrid nanosystem (LPN) was fabricated to coload paclitaxel (PTX) and tetrandrine (TET) at a precise combination ratio. In this co-delivery system, PTX was covalently conjugated to poly (D,L-lactide-co-glycolide) polymeric core by redox-sensitive disulfide bond, while TET was physically capsulated spontaneously for the aim to suppress P-gp in advance by the earlier released TET in cancer cells. As a result, the PTX+TET/iRGD LPNs with a core-shell structure possessed high drug loading efficiency, stability and redox-sensitive drug release profiles. Owing to the enhanced cellular uptake and P-gp suppression mediated by TET, significantly more PTX accumulated in A2780/PTX cells treated with PTX+TET/iRGD LPNs than either free drugs or non-iRGD modified LPNs. As expected, PTX+TET/iRGD LPNs presented the highest cytotoxicity against A2780/PTX cells and effectively promoted ROS production, enhanced apoptosis and cell cycle arrests particularly. Taken together, the co-delivery system demonstrated great promise as potential treatment for MDR-related tumors based on the synergistic effects of P-gp inhibition, enhanced endocytosis and intracellular sequentially drug release.
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Affiliation(s)
- Jinming Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Lu Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Hon Fai Chan
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Wei Xie
- Department of Respiratory Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518033, China
| | - Sheng Chen
- Department of Respiratory Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518033, China
| | - Chengwei He
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Meiwan Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
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47
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Xu Y, Wang S, Chan HF, Liu Y, Li H, He C, Li Z, Chen M. Triphenylphosphonium-modified poly(ethylene glycol)-poly(ε-caprolactone) micelles for mitochondria- targeted gambogic acid delivery. Int J Pharm 2017; 522:21-33. [DOI: 10.1016/j.ijpharm.2017.01.064] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 01/24/2017] [Accepted: 01/29/2017] [Indexed: 12/18/2022]
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48
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Abstract
The rapid advances in synthetic biology and biotechnology are increasingly demanding high-throughput screening technology, such as screening of the functionalities of synthetic genes for optimization of protein expression. Compartmentalization of single cells in water-in-oil (W/O) emulsion droplets allows screening of a vast number of individualized assays, and recent advances in automated microfluidic devices further help realize the potential of droplet technology for high-throughput screening. However these single-emulsion droplets are incompatible with aqueous phase analysis and the inner droplet environment cannot easily communicate with the external phase. We present a high-throughput, miniaturized screening platform for microchip-synthesized genes using microfluidics-generated water-in-oil-in-water (W/O/W) double emulsion (DE) droplets that overcome these limitations. Synthetic gene variants of fluorescent proteins are synthesized with a custom-built microarray inkjet synthesizer, which are then screened for expression in Escherichia coli (E. coli) cells. Bacteria bearing individual fluorescent gene variants are encapsulated as single cells into DE droplets where fluorescence signals are enhanced by 100 times within 24 h of proliferation. Enrichment of functionally-correct genes by employing an error correction method is demonstrated by screening DE droplets containing fluorescent clones of bacteria with the red fluorescent protein (rfp) gene. Permeation of isopropyl β-d-1-thiogalactopyranoside (IPTG) through the thin oil layer from the external solution initiates target gene expression. The induced expression of the synthetic fluorescent proteins from at least ∼100 bacteria per droplet generates detectable fluorescence signals to enable fluorescence-activated cell sorting (FACS) of the intact droplets. This technology obviates time- and labor-intensive cell culture typically required in conventional bulk experiment.
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Affiliation(s)
- H F Chan
- Department of Biomedical Engineering, Duke University, Durham, 27705, USA. and Department of Biomedical Engineering, Columbia University, New York, 10027, USA
| | - S Ma
- Department of Biomedical Engineering, Duke University, Durham, 27705, USA. and General Biosystems, Inc. Morrisville, 27560 USA
| | - J Tian
- Department of Biomedical Engineering, Duke University, Durham, 27705, USA. and General Biosystems, Inc. Morrisville, 27560 USA and Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - K W Leong
- Department of Biomedical Engineering, Duke University, Durham, 27705, USA. and Department of Biomedical Engineering, Columbia University, New York, 10027, USA and Department of Systems Biology, Columbia University, New York, 10027, USA
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49
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Law CY, Yeung WL, Cheung YF, Chan HF, Fung E, Hui J, Yung IO, Yuen YP, Chan AO, Lam CW. A common PRRT2 mutation in familial paroxysmal kinesigenic dyskinesia in Hong Kong: a case series of 16 patients. Hong Kong Med J 2016; 22:619-22. [PMID: 27920401 DOI: 10.12809/hkmj154579] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- C Y Law
- Department of Pathology, The University of Hong Kong, Pokfulam, Hong Kong
| | - W L Yeung
- Department of Paediatrics and Adolescent Medicine, Alice Ho Miu Ling Nethersole Hospital, Tai Po, Hong Kong
| | - Y F Cheung
- Division of Neurology, Department of Medicine, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - H F Chan
- Division of Neurology, Department of Medicine, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - E Fung
- Department of Paediatrics, Prince of Wales Hospital, Shatin, Hong Kong
| | - J Hui
- Department of Paediatrics, Prince of Wales Hospital, Shatin, Hong Kong
| | - I Ok Yung
- Division of Neurology, Department of Medicine and Therapeutics, Prince of Wales Hospital, Shatin, Hong Kong
| | - Y P Yuen
- Department of Chemical Pathology, Prince of Wales Hospital, Shatin, Hong Kong
| | - A Ok Chan
- Division of Clinical Biochemistry, Queen Mary Hospital, Pokfulam, Hong Kong
| | - C W Lam
- Department of Pathology, The University of Hong Kong, Pokfulam, Hong Kong
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50
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Wang S, Xu Y, Chan HF, Kim HW, Wang Y, Leong KW, Chen M. Nanoparticle-mediated inhibition of survivin to overcome drug resistance in cancer therapy. J Control Release 2016; 240:454-464. [DOI: 10.1016/j.jconrel.2016.04.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 04/09/2016] [Accepted: 04/11/2016] [Indexed: 02/08/2023]
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