(12) United States Patent (10) Patent No.: US 8,883,506 B2 Rossi Et Al

Total Page:16

File Type:pdf, Size:1020Kb

(12) United States Patent (10) Patent No.: US 8,883,506 B2 Rossi Et Al USOO88835 06B2 (12) United States Patent (10) Patent No.: US 8,883,506 B2 Rossi et al. (45) Date of Patent: *Nov. 11, 2014 (54) KITS COMPRISING LINEAR DNAS FOR FOREIGN PATENT DOCUMENTS SUSTAINED POLYPEPTIDE EXPRESSION EP 219 1840 * 6, 2010 USING SYNTHETIC, MODIFIED RNAS WO 2009,077134 6, 2009 WO WO 2009,077134 * 6/2009 (75) Inventors: Derrick Rossi, Roslindale, MA (US); WO WO2010/033906 * 3/2010 Luigi Warren, Cambridge, MA (US) WO WO2O10O33906 * 3/2010 WO WO2O10,042490 * 4, 2010 WO WO2O100.42490 * 4, 2010 (73) Assignee: Children's Medical Center WO 2010/105257 9, 2010 Corporation, Boston, MA (US) WO WO2O110O8956 * 1 2011 WO 2011, 130624 10, 2011 (*) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 OTHER PUBLICATIONS U.S.C. 154(b) by 41 days. Moore (2002, DNA and Cell Biol., vol. 21(5/6), pp. 443-451).* This patent is Subject to a terminal dis Thomson (1995, PNAS, vol. 92, pp. 7844-7848).* claimer. NIH (Stem Cells: Scientific Progress and Future Research Direc tions, Department of Health and Human Services, Chapter 1, Jun. 2001).* (21) Appl. No.: 13/590,902 NIH (Stem Cells: Scientific Progress and Future Research Direc tions, Department of Health and Human Services, Chapter 3, Jun. (22) Filed: Aug. 21, 2012 2001).* Takahashi (Cell, 2006, vol. 126:663-676).* (65) Prior Publication Data Yu (Science, Nov. 20, 2007, vol. 318, p. 1917-1920).* US 2012/0322865A1 Dec. 20, 2012 Blelloch (Cell Stem Cell, Sep. 13, 2007, vol. 1, p. 245-247).* Nakagawa (Nat Biotechnol. 2008, vol. 26: 101-106).* Sequence search notes, 2012.* Yisraeli (Methods in Enzymology, 1989, vol. 180, p. 42-50).* Related U.S. Application Data Kariko (Mol. Ther. Nov. 2008, vol. 16, No. 11, p. 1833-1840).* (63) Continuation of application No. 13/088,009, filed on Hoheisel et al., J. Biol. Chem., 1990, 265, 16656.* Apr. 15, 2011, now Pat. No. 8,802,438. Zhou et al., Cell Stem Cell, 4(5):381-4 (2009). “Generation of induced pluripotent stem cells using recombinant proteins.” (60) Provisional application No. 61/325,003, filed on Apr. Warren et al., Cell Stem Cell, 7:618-630 (2010). “Highly efficient 16, 2010, provisional application No. 61/387,220, reprogramming to pluripotency and directed differentiation of filed on Sep. 28, 2010. human cells with synthetic modified mRNA.” Angel et al., PLoS ONE, 5(7):el 1756 (2010). "Innate immune Sup (51) Int. Cl. pression enables frequent transfection with RNA encoding repro CI2N IS/00 (2006.01) gramming proteins.” C7H 2L/02 (2006.01) Audouy and Hoekstra, Mol. Membr. Biol. 18:129-143 (2001). (52) U.S. Cl. “Cationic lipid-mediated transfection in vitro and in vivo..” USPC .......................................... 435/455:536/23.1 Chan E.M.et al., Nat. Biotechnol. 27(11): 1033-1037 (2009). “Live cell imaging distinguishes bona fide human iPS cells from partially (58) Field of Classification Search reprogrammed cells.” USPC .......................................... 536/23.1; 435/455 Chang et al., Stem Cells, 27(5):1042-1049 (2009). “Polycistronic See application file for complete search history. lentiviral vector for hit and run reprogramming of adult skin fibro (56) References Cited blasts to induced pluripotent stem cells.” U.S. PATENT DOCUMENTS (Continued) 5,466,584. A * 1 1/1995 Tanizawa et al. ............ 435/69.1 Primary Examiner — Michael C. Wilson 5,955,443 A * 9/1999 Bennett et al. .. 514.f44 A (74) Attorney, Agent, or Firm — Nixon Peabody, LLP: 8, 158,415 B2 * 4/2012 Jo et al. ........ 435/320.1 David S. Resnick; Leena H. Karttunen Contarino 8,211,656 B2 * 7/2012 Hyde et al. ... 435/721 8,211,697 B2 * 7/2012 Sakurada et al. 435/377 8,257,941 B2* 9/2012 Sakurada et al. 435/29 (57) ABSTRACT 8,273,570 B2 * 9/2012 Sasai et al. ............. ... 435,368 Described herein are synthetic, modified RNAs for changing 8,664,194 B2 * 3/2014 de Fougerolles et al. ... 514/44 R 2004/025.3606 A1* 12/2004 Aziz et al. ......................... 435/6 the phenotype of a cell. Such as expressing a polypeptide or 2006/0247195 A1 1 1/2006 Ray altering the developmental potential. Accordingly, provided 2008/0293143 A1* 11/2008 Lin et al. ....................... 435/456 herein are compositions, methods, and kits comprising Syn 2009/0092616 A1* 4/2009 Snyder et al. 424,139.1 2009/0158513 A1* 6/2009 Robles .............................. 4,294 thetic, modified RNAs for changing the phenotype of a cellor 2009,0180996 A1 7/2009 Beyhan et al. cells. These methods, compositions, and kits comprising Syn 2009/0203141 A1* 8, 2009 Lin et al. ....................... 435/456 thetic, modified RNAs can be used either to express a desired 2009/0286852 A1 11/2009 Kariko et al. protein in a cell or tissue, or to change the differentiated 2010/0196889 A1* 8, 2010 Bankaitis-Davis et al. ....... 435/6 2010/0279.404 A1 11/2010 Yamanaka et al. phenotype of a cell to that of another, desired cell type. 2011/0065103 A1 3/2011 Sahin et al. 2011/0143397 A1 6/2011 Kariko et al. 8 Claims, 45 Drawing Sheets 2011/O14343.6 A1 6, 2011 Dahl et al. (21 of 45 Drawing Sheet(s) Filed in Color) US 8,883,506 B2 Page 2 (56) References Cited Papapetrou et al., Proc. Natl. Acad. Sci USA, 106(31): 12759-12764 (2009). "Stoichiometric and temporal requirements of Oct. 4, Sox2. OTHER PUBLICATIONS Klf4, and c-Myc expression for efficient human iPSC induction and differentiation.” Parket al., Nature, 451:141-146 (2008). “Reprogramming of human Davis et al., Cell, 51.987-1000 (1987). “Expression of a single somatic cells to pluripotency with defined factors.” transfected cDNA converts fibroblasts to myoblasts.” Pichlmair et al., Science, 314:997-1001 (2006). “RIG-I-mediated Diebold et al., Science, 303: 1529-1531 (2004). “Innate antiviral antiviral responses to single-stranded RNA bearing 5'-phosphates.” responses by means of TLR7-mediated recognition of single Rabinovich et al., Hum. Gene Ther. 17: 1027-1035 (2006). “Syn Stranded RNA. thetic messenger RNA as a tool for gene therapy.” Elango et al., Biochem. Biophys. Res. Commun., 330:958-966 Rabinovich et al., Hum. Gen. Ther. 20:51-61 (2008). “Chimeric (2005). "Optimized transfection of mRNA transcribed from a d(A/ receptor mRNA transfection as a tool to generate antineoplastic T) 100 tail-containing vector.” lymphocytes.” Ryser et al., Tissue Eng Part C Methods, 14(3):179-84 (2008). Fusaki et al., ProcJpn Acad Ser B, 85 (8): p. 348-62 (2009). “Efficient “mRNA transfection of CXCR4-GFP fusion—simply generated by induction of transgene-free human pluripotent stem cells using a PCR results in efficient migration of primary human mesenchymal vector based on Sendai virus, an RNA virus that does not integrate stem cells.” into the host genome.” Shi et al., Cell Stem Cell, 2:525-528 (2008). “A combined chemical Hanna et al., Nature, 462(7273):595-601 (2009). “Direct cell repro and genetic approach for the generation of induced pluripotent stem gramming in a stochastic process amenable to acceleration.” cells. Holtkamp et al., Blood, 108:4009-4017 (2006). “Modification of Smith et al., J. Cell. Physiol., 220:21-29 (2009). “Pluripotency: antigen-encoding RNA increases stability, translational efficacy, and toward a gold standard for human ES and iPS cells.” Stadtfeld et al., Science, 322(5903):945-9 (2008). “Induced T-cell stimulatory capacity of dendritic cells.” pluripotent stem cells generated without viral integration.” Hornung et al., Science, 314:994-997 (2006). “5'-triphosphate RNA Takahashi and Yamanaka, Cell, 126(4):663-76 (2006). “Induction is the ligand for RIG-I.” of pluripotent stem cells from mouse embryonic and adult fibroblast Hu et al., Proc. Natl. Acad. Sci USA 107(9):4335-4340 (2010). cultures by defined factors.” “Neural differentiation of human induced pluripotent stem cells fol Takahashi et al., Cell, 131(5):861-72 (2007). “Induction of lows developmental principles but with variable potency.” pluripotent stem cells from adult human fibroblasts by defined fac Huangfu et al., Nature Biotechnology 26(7):795-797 (2008). “Induc tors. tion of pluripotent stem cells by defined factors is greatly improved Uematsu and Akira, J Biol Chem. 282(21): 15319-23 (2007). “Toll by Small-molecule compounds.” like receptors and type I interferons.” Utikal et al., Nature, 460:1145-1148 (2009). "Immortalization elimi Jia et al., Nat. Methods, 7: 197-199 (2010). “A nonviral minicircle nates a roadblock during cellular reprogramming into iPS cells.” vector for deriving human iPS cells.” Uzri and Gehrke, J. Virol, 83(9):4174-4184 (2009). “Nucleotide Kaji et al., Nature, 458(7239):771-5 (2009). "Virus free induction of sequences and modifications that determine RIG-IRNA binding and pluripotency and Subsequent excision of reprogramming factors.” signaling activities.” Kariko and Weissman, Curr. Opin. Drug Discov. Devel., 10:523-532 Van Den Bosch et al., J. Immunother, 29(5):512-523 (2006). “Simul (2007). “Naturally occurring nucleoside modifications suppress the taneous activation of viral antigen-specific memory CD4+ and CD8+ immunostimulatory activity of RNA: implication for therapeutic T-cells using mRNA-electroporated CD40-activated autologous RNA development.” B-cells. Kariko et al., Immunity, 23:165-175 (2005). "Suppression of RNA Van Tendeloo et al., Blood, 98(1):49-56 (2001). “Highly efficient recognition by toll-like receptors: the impact of nucleoside modifi gene delivery by mRNA electroporation in human hematopoietic cation and the evolutionary origin of RNA.” cells: Superiority to lipofection and passive pulsing of mRNA and to Kariko et al., Mol. Ther. 16(11): 1833-1840 (2008). “Incorporation electroporation of plasmid cDNA for tumor antigen loading of of Pseudouridine into mRNA yields Superior nonimmunogenic vec dendritic cells.” tor with increased translational capacity and biological stability.” Watanabe et al., Nat.
Recommended publications
  • Lower Genomic Stability of Induced Pluripotent Stem Cells Reflects
    Zhang et al. Cancer Commun (2018) 38:49 https://doi.org/10.1186/s40880-018-0313-0 Cancer Communications ORIGINAL ARTICLE Open Access Lower genomic stability of induced pluripotent stem cells refects increased non‑homologous end joining Minjie Zhang1,2†, Liu Wang3†, Ke An1,2†, Jun Cai1, Guochao Li1,2, Caiyun Yang1, Huixian Liu1, Fengxia Du1, Xiao Han1,2, Zilong Zhang1,2, Zitong Zhao1,2, Duanqing Pei4, Yuan Long5, Xin Xie5, Qi Zhou3 and Yingli Sun1* Abstract Background: Induced pluripotent stem cells (iPSCs) and embryonic stem cells (ESCs) share many common features, including similar morphology, gene expression and in vitro diferentiation profles. However, genomic stability is much lower in iPSCs than in ESCs. In the current study, we examined whether changes in DNA damage repair in iPSCs are responsible for their greater tendency towards mutagenesis. Methods: Mouse iPSCs, ESCs and embryonic fbroblasts were exposed to ionizing radiation (4 Gy) to introduce dou- ble-strand DNA breaks. At 4 h later, fdelity of DNA damage repair was assessed using whole-genome re-sequencing. We also analyzed genomic stability in mice derived from iPSCs versus ESCs. Results: In comparison to ESCs and embryonic fbroblasts, iPSCs had lower DNA damage repair capacity, more somatic mutations and short indels after irradiation. iPSCs showed greater non-homologous end joining DNA repair and less homologous recombination DNA repair. Mice derived from iPSCs had lower DNA damage repair capacity than ESC-derived mice as well as C57 control mice. Conclusions: The relatively low genomic stability of iPSCs and their high rate of tumorigenesis in vivo appear to be due, at least in part, to low fdelity of DNA damage repair.
    [Show full text]
  • Humankind 2.0: the Technologies of the Future 6. Biotech
    Humankind 2.0: The Technologies of the Future 6. Biotech Piero Scaruffi, 2017 See http://www.scaruffi.com/singular/human20.html for the full text of this discussion A brief History of Biotech 1953: Discovery of the structure of the DNA 2 A brief History of Biotech 1969: Jon Beckwith isolates a gene 1973: Stanley Cohen and Herbert Boyer create the first recombinant DNA organism 1974: Waclaw Szybalski coins the term "synthetic biology” 1975: Paul Berg organizes the Asilomar conference on recombinant DNA 3 A brief History of Biotech 1976: Genentech is founded 1977: Fred Sanger invents a method for rapid DNA sequencing and publishes the first full DNA genome of a living being Janet Rossant creates a chimera combining two mice species 1980: Genentech’s IPO, first biotech IPO 4 A brief History of Biotech 1982: The first biotech drug, Humulin, is approved for sale (Eli Lilly + Genentech) 1983: Kary Mullis invents the polymerase chain reaction (PCR) for copying genes 1986: Leroy Hood invents a way to automate gene sequencing 1986: Mario Capecchi performs gene editing on a mouse 1990: William French Anderson’s gene therapy 1990: First baby born via PGD (Alan Handyside’s lab) 5 A brief History of Biotech 1994: FlavrSavr Tomato 1994: Maria Jasin’s homing endonucleases for genome editing 1996: Srinivasan Chandrasegaran’s ZFN method for genome editing 1996: Ian Wilmut clones the first mammal, the sheep Dolly 1997: Dennis Lo detects fetal DNA in the mother’s blood 2000: George Davey Smith introduces Mendelian randomization 6 A brief History of Biotech
    [Show full text]
  • This Thesis Has Been Submitted in Fulfilment of the Requirements for a Postgraduate Degree (E.G
    This thesis has been submitted in fulfilment of the requirements for a postgraduate degree (e.g. PhD, MPhil, DClinPsychol) at the University of Edinburgh. Please note the following terms and conditions of use: This work is protected by copyright and other intellectual property rights, which are retained by the thesis author, unless otherwise stated. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This thesis cannot be reproduced or quoted extensively from without first obtaining permission in writing from the author. The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the author. When referring to this work, full bibliographic details including the author, title, awarding institution and date of the thesis must be given. Stabilisation of hepatocyte phenotype using synthetic materials Baltasar Lucendo Villarin MRes University of Edinburgh 2015 This dissertation is submitted for the degree of Doctor of Philosophy Declaration This thesis is the result of my work and includes nothing that is the outcome of work done in collaboration, except where indicated in the text. The work in this thesis has not been submitted for any other degree or professional qualification. Baltasar Lucendo Villarin i ii Abstract Primary human hepatocytes are a scare resource with limited lifespan and variable function which diminishes with time in culture. As a consequence, their use in tissue modelling and therapy is restricted. Human embryonic stem cells (hESC) could provide a stable source of human tissue due to their self-renewal properties and their ability to give rise to all the cell types of the human body.
    [Show full text]
  • RNA-Based Reprogramming
    RESEARCH HIGHLIGHTS STEM CELLS RNA-based reprogramming RNA molecules can both induce pluripo- RNA-based technique instead of viral tech- development, began producing myotubes. In tency and direct differentiation. niques for much of its induced pluripotent fact, Rossi expects that techniques using RNA The ability to make person-specific pluri- stem cell production. for differentiation will probably be adopted potent stem cells opens up many possibilities Getting the technique to work required more quickly than using RNA for reprogram- for research tools and perhaps even therapies. a lot of trial and error, says Rossi. His first ming. “I think people will have an easier time But most reprogramming techniques alter cells’ attempts to reprogram cells with RNA failed in differentiation because it’s often one factor genomes, making cells less predictable and more because cells responded as if they had been rather than several,” he says. prone to cancer-like growth. Methods to repro- infected by a virus, committing apoptosis or Making the modified RNA itself is easy, gram cells without changing their genomes launching other antiviral defenses. Swapping says Rossi, but researchers will need to exist but are inefficient and labor-intensive; out two nucleosides with similar analogs mit- spend some time tinkering to find the best most also rely on DNA and so still carry the igated the response and allowed the research- conditions for their systems. Every aspect risk of unintended genetic alterations. ers to reprogram cultured human cells by of culture conditions affects how cells are A reprogramming technique recently applying daily doses of RNAs coding for four transfected with RNA, he says.
    [Show full text]
  • I REGENERATIVE MEDICINE APPROACHES to SPINAL CORD
    REGENERATIVE MEDICINE APPROACHES TO SPINAL CORD INJURY A Dissertation Presented to The Graduate Faculty of The University of Akron In Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy Ashley Elizabeth Mohrman March 2017 i ABSTRACT Hundreds of thousands of people suffer from spinal cord injuries in the U.S.A. alone, with very few patients ever experiencing complete recovery. Complexity of the tissue and inflammatory response contribute to this lack of recovery, as the proper function of the central nervous system relies on its highly specific structural and spatial organization. The overall goal of this dissertation project is to study the central nervous system in the healthy and injured state so as to devise appropriate strategies to recover tissue homeostasis, and ultimately function, from an injured state. A specific spinal cord injury model, syringomyelia, was studied; this condition presents as a fluid filled cyst within the spinal cord. Molecular evaluation at three and six weeks post-injury revealed a large inflammatory response including leukocyte invasion, losses in neuronal transmission and signaling, and upregulation in important osmoregulators. These included osmotic stress regulating metabolites betaine and taurine, as well as the betaine/GABA transporter (BGT-1), potassium chloride transporter (KCC4), and water transporter aquaporin 1 (AQP1). To study cellular behavior in native tissue, adult neural stem cells from the subventricular niche were differentiated in vitro. These cells were tested under various culture conditions for cell phenotype preferences. A mostly pure (>80%) population of neural stem cells could be specified using soft, hydrogel substrates with a laminin coating and interferon-γ supplementation.
    [Show full text]
  • Empire State Stem Cell Board Full Board Committee Meeting Minutes December 17, 2010
    Empire State Stem Cell Board Full Board Committee Meeting Minutes December 17, 2010 The Empire State Stem Cell Board held a meeting on Friday, December 17, 2010, at the offices of the Department of Health, 90 Church Street, New York, New York. Dr. David C. Hohn, M.D., presided as Vice Chair. Funding Committee Members Present: Dr. David Hohn, Chairperson Mr. Kenneth Adams Mr. Robin Elliott Dr. Bradford Berk* Dr. Mario Loomis * via videoconference Ms. Madelyn Wils Funding Committee Members Absent: Dr. Richard Daines Dr. Allen Spiegel Dr. Gerald Fischbach Dr. Michael Stocker Dr. Hilda Hutcherson Ethics Committee Members Present: Ms. Jann Armantrout Dr. Vivian Lee Fr. Thomas Berg Rev. H. Hugh Maynard-Reid Ms. Brooke Ellison* Dr. Samuel Packer Dr. Samuel Gorovitz Mr. Robert Swidler Dr. Robert Klitzman *via videoconference Ethics Committee Members Absent: Ms. Nancy Dubler Department of Health Staff Present: Dr. David Anders Ms. Susie Han Mr. Andrew Bentley Dr. Matthew Kohn Ms. Bonnie Brautigam Ms. Beth Roxland Dr. Kathy Chou Ms. Lakia Rucker Ms. Janet Cohn Dr. Lawrence Sturman Presenter: Dr. Derrick Rossi Observers Present: Ms. Jennifer Becht Ms. Caroline Marshall Mr. Joe Feldman Mr. David McKeon Mr. Mike Jolin Ms. Valeria Vavassori-Chen Ms. Elizabeth Misa Welcome and Introductions Dr. Hohn called the meeting to order and welcomed Board members, staff, and the public. He introduced Ms. Jann Armantrout, the newest member of the Ethics Committee. Dr. Hohn then asked members and staff to introduce themselves and provide their title and affiliation. Dr. Hohn stated that during the lunch break, several members had approached him to request special recognition of Dr.
    [Show full text]
  • Application of Fibrin-Based Hydrogels for Nerve Protection And
    Yu et al. Journal of Biological Engineering (2020) 14:22 https://doi.org/10.1186/s13036-020-00244-3 REVIEW Open Access Application of fibrin-based hydrogels for nerve protection and regeneration after spinal cord injury Ziyuan Yu, Hongru Li, Peng Xia, Weijian Kong, Yuxin Chang, Chuan Fu, Kai Wang, Xiaoyu Yang* and Zhiping Qi* Abstract Traffic accidents, falls, and many other events may cause traumatic spinal cord injuries (SCIs), resulting in nerve cells and extracellular matrix loss in the spinal cord, along with blood loss, inflammation, oxidative stress (OS), and others. The continuous development of neural tissue engineering has attracted increasing attention on the application of fibrin hydrogels in repairing SCIs. Except for excellent biocompatibility, flexibility, and plasticity, fibrin, a component of extracellular matrix (ECM), can be equipped with cells, ECM protein, and various growth factors to promote damage repair. This review will focus on the advantages and disadvantages of fibrin hydrogels from different sources, as well as the various modifications for internal topographical guidance during the polymerization. From the perspective of further improvement of cell function before and after the delivery of stem cell, cytokine, and drug, this review will also evaluate the application of fibrin hydrogels as a carrier to the therapy of nerve repair and regeneration, to mirror the recent development tendency and challenge. Keywords: Fibrin hydrogels, Spinal cord injury, Topographical guidance, Stem cells delivery, Cytokines delivery, Drug delivery Introduction secondary death of remaining nerves or to enhance the The spinal cord is an integral part of the central nervous compensation of spared circuits function [4–7].
    [Show full text]
  • What Are IPS Cells? Stem Cell & Regenerative Medicine Center University of Wisconsin-Madison
    What are IPS cells? Stem Cell & Regenerative Medicine Center University of Wisconsin-Madison n induced pluripotent stem cell, or IPS cell, How do we know induced pluripotent stem is a stem cell that has been created from an cells can match embryonic stem cells? So adult cell such as a skin, liver, stomach or far, induced pluripotent stem cells appear to Aother mature cell through the introduction of genes exhibit the same key features of embryonic that reprogram the cell and transform it into a cell stem cells: the ability to differentiate from a that has all the characteristics of an embryonic stem blank-slate state to any of the 220 types of cell. The term pluripotent connotes the ability of a cells in the human body, and the ability to cell to give rise to multiple cell types, including all reproduce indefinitely in culture. Because in- three embryonic lineages forming the body’s or- duced stem cells are relatively new, however, gans, nervous system, skin, muscle and skeleton. scientists must compare the cells to those obtained from embryos to assess their charac- What are the advantages of induced pluripotent teristics in detail and ensure that there are no stem cells? significant differences. Bioethics: Induced stem cells have the obvious edge Do induced pluripotent stem cells mean of not having to be derived from human embryos, we no longer need embryonic stem cells? a major ethical consideration. The ability to re- No. It remains to be seen whether repro- program an adult cell to behave like an embryonic grammed cells differ in significant ways from stem cell may also enable scientists to sidestep embryonic stem cells.
    [Show full text]
  • Stem Cells: the Secret to Change | Science News for Kids
    Stem cells: The secret to change | Science News for Kids http://www.sciencenewsforkids.org/2013/04/stem-cells-the-secret-to-change/ SNK E-Blast Sign-up Privacy Policy Contact Us AA BB OO UU TT SS NN KK CC OO MM PP EE TT EE Who We Are Broadcom MASTERS For Educators Our Sponsors Intel ISEF SSP News & Events Intel STS EXPLORE: ATOMS & FORCES EARTH & SKY HUMANS & HEALTH LIFE TECH & MATH EXTRA SEARCH FOR: HUMANS & HEALTH : BODY & HEALTH Stem cells: The secret to change Unusual, versatile cells hold the key to regrowing lost tissues By Alison Pearce Stevens / April 10, 2013 Related Links Deadly new virus emerges The AIDS virus that vanished Bad for breathing Sleeping in space Going Deeper P. B arry. “Stem cells, show your face.” Science News. August 24, 2008. Neurons created from induced stem cells in Iqbal Ahmad’s lab glow red with fluorescent dye. The neuroscientist at the University of Nebraska Medical Center is researching whether the nerve cells could one day help restore sight to patients S. Ornes. “The 2012 Nobel Prizes.” Science with glaucoma. Once injected in a patient, the nerve cells would work by inserting themselves between the retina and optic News for Kids. Oct. 19, 2012. nerve, restoring signals to the brain. Credit: Courtesy of Iqbal Ahmad Inside your body, red blood cells are constantly on the move. They deliver oxygen to every tissue in every E. Sohn. “From stem cell to any cell.” Science part of your body. These blood cells also cart away waste. So their work is crucial to your survival.
    [Show full text]
  • BCRP Brochure 2021 Class
    Boston Combined Residency Program This brochure describes the residency program as we assume it will -19 exist will in be JulyThe 2021, Pediatric by which time Residency authorities Training Program predict a vaccine to COVID of available. If thatBoston is not the Children’s case and the Hospital pandemic is still active, the program Harvard Medical School will be very similar but many of the and educational conferences and other group activities Bostonwill be virtual Medical instead Center Boston University School of Medicine of in-person, as they are today. August 2020 edi,on CLASS OF 2021.. BOSTON COMBINED RESIDENCY PROGRAM Boston Medical Center Boston Children’s Hospital CONTENTS History…………........................... 3 Rotation # descriptions.................. 47# Global health fellowships............ 84# BCRP…........................................ 3# Night call................................... 53# Global health grants………….… 84 # Boston Children’s Hospital........... 3# Longitudinal ambulatory.............. 54# Diversity and Inclusion................. 84# Boston Medical Center................. 8# Electives………………………….. 55# Salaries and benefits.................... 87# People……................................... 11 Individualized curriculum............ 56# Child care................................... 88# Program director biosketches...... 11# Academic development block.. 56# O$ce of fellowship training....... 88# Residency program leadership..... 12# Education.................................... 57# Cost of living..............................
    [Show full text]
  • Emerging Roles of Myc in Stem Cell Biology and Novel Tumor Therapies Go J
    Yoshida Journal of Experimental & Clinical Cancer Research (2018) 37:173 https://doi.org/10.1186/s13046-018-0835-y REVIEW Open Access Emerging roles of Myc in stem cell biology and novel tumor therapies Go J. Yoshida Abstract The pathophysiological roles and the therapeutic potentials of Myc family are reviewed in this article. The physiological functions and molecular machineries in stem cells, including embryonic stem (ES) cells and induced pluripotent stem (iPS) cells, are clearly described. The c-Myc/Max complex inhibits the ectopic differentiation of both types of artificial stem cells. Whereas c-Myc plays a fundamental role as a “double-edged sword” promoting both iPS cells generation and malignant transformation, L-Myc contributes to the nuclear reprogramming with the significant down-regulation of differentiation-associated genetic expression. Furthermore, given the therapeutic resistance of neuroendocrine tumors such as small-cell lung cancer and neuroblastoma, the roles of N-Myc in difficult-to-treat tumors are discussed. N-Myc-driven neuroendocrine tumors tend to highly express NEUROD1, thereby leading to the enhanced metastatic potential. Importantly enough, accumulating evidence strongly suggests that c-Myc can be a promising therapeutic target molecule among Myc family in terms of the biological characteristics of cancer stem-like cells (CSCs). The presence of CSCs leads to the intra-tumoral heterogeneity, which is mainly responsible for the therapeutic resistance. Mechanistically, it has been shown that Myc-induced epigenetic reprogramming enhances the CSC phenotypes. In this review article, the author describes two major therapeutic strategies of CSCs by targeting c-Myc; Firstly, Myc-dependent metabolic reprogramming is closely related to CD44 variant-dependent redox stress regulation in CSCs.
    [Show full text]
  • Stem Cells in Cancer Therapy: Opportunities and Challenges
    www.impactjournals.com/oncotarget/ Oncotarget, 2017, Vol. 8, (No. 43), pp: 75756-75766 Review Stem cells in cancer therapy: opportunities and challenges Cheng-Liang Zhang1, Ting Huang1, Bi-Li Wu2, Wen-Xi He1 and Dong Liu1 1Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China 2Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China Correspondence to: Dong Liu, email: [email protected] Keywords: stem cell, targeted cancer therapy, tumor-tropic property, cell carrier Received: June 22, 2017 Accepted: August 17, 2017 Published: September 08, 2017 Copyright: Zhang et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License 3.0 (CC BY 3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. ABSTRACT Metastatic cancer cells generally cannot be eradicated using traditional surgical or chemoradiotherapeutic strategies, and disease recurrence is extremely common following treatment. On the other hand, therapies employing stem cells are showing increasing promise in the treatment of cancer. Stem cells can function as novel delivery platforms by homing to and targeting both primary and metastatic tumor foci. Stem cells engineered to stably express various cytotoxic agents decrease tumor volumes and extend survival in preclinical animal models. They have also been employed as virus and nanoparticle carriers to enhance primary therapeutic efficacies and relieve treatment side effects. Additionally, stem cells can be applied in regenerative medicine, immunotherapy, cancer stem cell-targeted therapy, and anticancer drug screening applications.
    [Show full text]