Posts tagged ‘regeneration’

Development

  1. Kobayashi T, Zhang H, Tang WWC, Irie N, Withey S, Klisch D, Sybirna A, Dietmann S, Contreras DA, Webb R, Allegrucci C, Alberio R, Surani MA. Principles of early human development and germ cell program from conserved model systems. Nature. 2017 Jun 7. doi: 10.1038/nature22812. [Epub ahead of print] PubMed PMID: 28607482.
  2. Peter IS, Davidson EH. Assessing regulatory information in developmental gene regulatory networks. Proc Natl Acad Sci U S A. 2017 Jun 6;114(23):5862-5869. doi: 10.1073/pnas.1610616114. PubMed PMID: 28584110.

Regeneration

  1. Laha B, Stafford BK, Huberman AD. Regenerating optic pathways from the eye to the brain. Science. 2017 Jun 9;356(6342):1031-1034. doi: 10.1126/science.aal5060. Review. PubMed PMID: 28596336.

Genomics

  1. Jiao Y, Peluso P, Shi J, Liang T, Stitzer MC, Wang B, Campbell MS, Stein JC, Wei X, Chin CS, Guill K, Regulski M, Kumari S, Olson A, Gent J, Schneider KL, Wolfgruber TK, May MR, Springer NM, Antoniou E, McCombie WR, Presting GG, McMullen M, Ross-Ibarra J, Dawe RK, Hastie A, Rank DR, Ware D. Improved maize reference genome with single-molecule technologies. Nature. 2017 Jun 12. doi: 10.1038/nature22971. [Epub ahead of print] PubMed PMID: 28605751.

Stem cells

  1. Kilpinen H, Goncalves A, Leha A, Afzal V, Alasoo K, Ashford S, Bala S, Bensaddek D, Casale FP, Culley OJ, Danecek P, Faulconbridge A, Harrison PW, Kathuria A, McCarthy D, McCarthy SA, Meleckyte R, Memari Y, Moens N, Soares F, Mann A, Streeter I, Agu CA, Alderton A, Nelson R, Harper S, Patel M, White A, Patel SR, Clarke L, Halai R, Kirton CM, Kolb-Kokocinski A, Beales P, Birney E, Danovi D, Lamond AI, Ouwehand WH, Vallier L, Watt FM, Durbin R, Stegle O, Gaffney DJ. Common genetic variation drives molecular heterogeneity in human iPSCs. Nature. 2017 May 10. doi: 10.1038/nature22403. [Epub ahead of print] PubMed PMID: 28489815.

Genome Editing

  1. Dong, Guo M, Wang S, Zhu Y, Wang S, Xiong Z, Yang J, Xu Z, Huang Z. Structural basis of CRISPR-SpyCas9 inhibition by an anti-CRISPR protein. Nature. 2017 Apr 27. doi: 10.1038/nature22377. [Epub ahead of print] PubMed PMID: 28448066.

Molecular Biology

  1. Pennisi E. Circular DNA throws biologists for a loop. Science. 2017 Jun 9;356(6342):996. doi: 10.1126/science.356.6342.996. PubMed PMID: 28596318.
  2. Roundtree IA, Evans ME, Pan T, He C. Dynamic RNA Modifications in Gene Expression Regulation. Cell. 2017 Jun 15;169(7):1187-1200. doi: 10.1016/j.cell.2017.05.045. Review. PubMed PMID: 28622506.

Funding

  1. Kaiser J. Data Check: Critics challenge NIH finding that bigger labs aren’t necessarily better. Science. 2017 Jun 9;356(6342):997. doi: 10.1126/science.356.6342.997. PubMed PMID: 28596319.

Genetics

  1. Boyle EA, Li YI, Pritchard JK. An Expanded View of Complex Traits: From Polygenic to Omnigenic. Cell. 2017 Jun 15;169(7):1177-1186. doi: 10.1016/j.cell.2017.05.038. Review. PubMed PMID: 28622505.
  2. Trigos AS, Pearson RB, Papenfuss AT, Goode DL. Altered interactions between unicellular and multicellular genes drive hallmarks of transformation in a diverse range of solid tumors. Proc Natl Acad Sci U S A. 2017 Jun 13;114(24):6406-6411. doi: 10.1073/pnas.1617743114. Epub 2017 May 8. PubMed PMID: 28484005.
  3. Bussey KJ, Cisneros LH, Lineweaver CH, Davies PCW. Ancestral gene regulatory networks drive cancer. Proc Natl Acad Sci U S A. 2017 Jun 13;114(24):6160-6162. doi: 10.1073/pnas.1706990114. Epub 2017 Jun 5. PubMed PMID: 28584134.

Evolution

  1. Cindrova-Davies T, Jauniaux E, Elliot MG, Gong S, Burton GJ, Charnock-Jones DS. RNA-seq reveals conservation of function among the yolk sacs of human, mouse, and chicken. Proc Natl Acad Sci U S A. 2017 Jun 13;114(24):E4753-E4761. doi: 10.1073/pnas.1702560114. Epub 2017 May 30. PubMed PMID: 28559354.

 

Evolution

  1. Gonzalez P, Uhlinger KR, Lowe CJ. The Adult Body Plan of Indirect Developing Hemichordates Develops by Adding a Hox-Patterned Trunk to an Anterior Larval Territory. Curr Biol. 2016 Dec 7. pii: S0960-9822(16)31273-8. doi: 10.1016/j.cub.2016.10.047. [Epub ahead of print] PubMed PMID: 27939313.
    • Hejnol A, Vellutini BC. Larval Evolution: I’ll Tail You Later…. Curr Biol. 2017 Jan 9;27(1):R21-R24. doi: 10.1016/j.cub.2016.10.057. PubMed PMID: 28073016.

Regeneration

  1. Tornini VA, Puliafito A, Slota LA, Thompson JD, Nachtrab G, Kaushik AL, Kapsimali M, Primo L, Di Talia S, Poss KD. Live Monitoring of Blastemal Cell Contributions during Appendage Regeneration. Curr Biol. 2016 Nov 21;26(22):2981-2991. doi: 10.1016/j.cub.2016.08.072. PubMed PMID: 27839971; PubMed Central PMCID: PMC5121098.
  2. Currie JD, Kawaguchi A, Traspas RM, Schuez M, Chara O, Tanaka EM. Live Imaging of Axolotl Digit Regeneration Reveals Spatiotemporal Choreography of Diverse Connective Tissue Progenitor Pools. Dev Cell. 2016 Nov 21;39(4):411-423. doi: 10.1016/j.devcel.2016.10.013. PubMed PMID: 27840105; PubMed Central PMCID: PMC5127896.
    • Weidinger G. Regeneration: Recorded Live! Curr Biol. 2017 Jan 9;27(1):R30-R33. doi: 10.1016/j.cub.2016.11.022. PubMed PMID: 28073020.

Genome editing

  1. Braun CJ, Bruno PM, Horlbeck MA, Gilbert LA, Weissman JS, Hemann MT. Versatile in vivo regulation of tumor phenotypes by dCas9-mediated transcriptional perturbation. Proc Natl Acad Sci U S A. 2016 Jun 20. pii: 201600582. [Epub ahead of print] PubMed PMID: 27325776.

Regeneration

  1. Neves J, Zhu J, Sousa-Victor P, Konjikusic M, Riley R, Chew S, Qi Y, Jasper H, Lamba DA. Immune modulation by MANF promotes tissue repair and regenerative success in the retina. Science. 2016 Jul 1;353(6294):aaf3646. doi: 10.1126/science.aaf3646. PubMed PMID: 27365452.

Genomics

  1. Ståhl PL, Salmén F, Vickovic S, Lundmark A, Navarro JF, Magnusson J, Giacomello S, Asp M, Westholm JO, Huss M, Mollbrink A, Linnarsson S, Codeluppi S, Borg Å, Pontén F, Costea PI, Sahlén P, Mulder J, Bergmann O, Lundeberg J, Frisén J. Visualization and analysis of gene expression in tissue sections by spatial transcriptomics. Science. 2016 Jul 1;353(6294):78-82. doi: 10.1126/science.aaf2403. PubMed PMID: 27365449.
  2. Wu J, Huang B, Chen H, Yin Q, Liu Y, Xiang Y, Zhang B, Liu B, Wang Q, Xia W, Li W, Li Y, Ma J, Peng X, Zheng H, Ming J, Zhang W, Zhang J, Tian G, Xu F, Chang Z, Na J, Yang X, Xie W. The landscape of accessible chromatin in mammalian preimplantation embryos. Nature. 2016 Jun 15;534(7609):652-657. doi: 10.1038/nature18606. [Epub ahead of print] PubMed PMID: 27309802.

Development

  1. Wu J, Huang B, Chen H, Yin Q, Liu Y, Xiang Y, Zhang B, Liu B, Wang Q, Xia W, Li W, Li Y, Ma J, Peng X, Zheng H, Ming J, Zhang W, Zhang J, Tian G, Xu F, Chang Z, Na J, Yang X, Xie W. The landscape of accessible chromatin in mammalian preimplantation embryos. Nature. 2016 Jun 15;534(7609):652-657. doi: 10.1038/nature18606. [Epub ahead of print] PubMed PMID: 27309802.

Funding

  1. von Hippel T, von Hippel C. To apply or not to apply: a survey analysis of grant writing costs and benefits. PLoS One. 2015 Mar 4;10(3):e0118494. doi: 10.1371/journal.pone.0118494. eCollection 2015. PubMed PMID: 25738742; PubMed Central PMCID: PMC4349454.

				

Stem cells

  1. Hou P, Li Y, Zhang X, Liu C, Guan J, Li H, Zhao T, Ye J, Yang W, Liu K, Ge J, Xu J, Zhang Q, Zhao Y, Deng H. Pluripotent stem cells induced from mouse somatic cells by small-molecule compounds. Science. 2013 Aug 9;341(6146):651-4. doi: 10.1126/science.1239278. Epub 2013 Jul 18. PubMed PMID: 23868920.

Neuroscience

  1. Shomrat T, Levin M. An automated training paradigm reveals long-term memory in planaria and its persistence through head regeneration. J Exp Biol. 2013 Jul 2. [Epub ahead of print] PubMed PMID: 23821717.
  2. Esposti F, Johnston J, Rosa JM, Leung KM, Lagnado L. Olfactory Stimulation Selectively Modulates the OFF Pathway in the Retina of Zebrafish. Neuron. 2013 Jul 10;79(1):97-110. doi: 10.1016/j.neuron.2013.05.001. PubMed PMID: 23849198.
    • Commentary: “Dowling JE. Olfaction and Vision Meet in the Retina. Neuron. 2013 Jul 10;79(1):1-3. doi: 10.1016/j.neuron.2013.06.024. PubMed PMID: 23849191.

Retina

  1. Endeman D, Klaassen LJ, Kamermans M. Action spectra of zebrafish cone photoreceptors. PLoS One. 2013 Jul 5;8(7):e68540. doi: 10.1371/journal.pone.0068540. Print 2013. PubMed PMID: 23861916; PubMed Central PMCID: PMC3702584.

Genetics

  1. Poznik GD, Henn BM, Yee MC, Sliwerska E, Euskirchen GM, Lin AA, Snyder M, Quintana-Murci L, Kidd JM, Underhill PA, Bustamante CD. Sequencing Y chromosomes resolves discrepancy in time to common ancestor of males versus females. Science. 2013 Aug 2;341(6145):562-5. doi: 10.1126/science.1237619. PubMed PMID: 23908239.
  2. Francalacci P, Morelli L, Angius A, Berutti R, Reinier F, Atzeni R, Pilu R, Busonero F, Maschio A, Zara I, Sanna D, Useli A, Urru MF, Marcelli M, Cusano R, Oppo M, Zoledziewska M, Pitzalis M, Deidda F, Porcu E, Poddie F, Kang HM, Lyons R, Tarrier B, Gresham JB, Li B, Tofanelli S, Alonso S, Dei M, Lai S, Mulas A, Whalen MB, Uzzau S, Jones C, Schlessinger D, Abecasis GR, Sanna S, Sidore C, Cucca F. Low-pass DNA sequencing of 1200 Sardinians reconstructs European Y-chromosome phylogeny. Science. 2013 Aug 2;341(6145):565-9. doi: 10.1126/science.1237947. PubMed PMID: 23908240.
  3. Fu Y, Foden JA, Khayter C, Maeder ML, Reyon D, Joung JK, Sander JD. High-frequency off-target mutagenesis induced by CRISPR-Cas nucleases in human cells. Nat Biotechnol. 2013 Jun 23. doi: 10.1038/nbt.2623. [Epub ahead of print] PubMed PMID: 23792628.

There is an interesting news article “Printing Muscle” from Technology Review about using 3-D printers to print muscle cells so that they may assume a 3-D shape that resembles muscle fiber. The idea sounds interesting, because one can potentially print tissues or even organs that have complicated cellular composition in 3-D for regenerative medicine.

 

From Discover magazine: “Helpful Mouse Fetuses Naturally Send Stem Cells to Mom to Fix Her Damaged Heart”

The punchline is

When a pregnant mouse has a heart attack, her fetus donates some of its stem cells to help rebuild the damaged heart tissue.

The original article is available here.

Kara RJ, Bolli P, Karakikes I, Matsunaga I, Tripodi J, Tanweer O, Altman P, Shachter NS, Nakano A, Najfeld V, Chaudhry HW. Fetal Cells Traffic to Injured Maternal Myocardium and Undergo Cardiac Differentiation. Circ Res. 2011 Nov 14. [Epub ahead of print] PubMed PMID: 22082491.

Medical Research

*These two articles point out the problems of using animal models for research if the goal is to extract translational values and how mouse model, the gold standard for disease research, can actually be a poor reference standard because of the ways we want to standardize the biological tool for testing.

  1. Lynch VJ. Use with caution: developmental systems divergence and potential pitfalls of animal models. Yale J Biol Med. 2009 Jun;82(2):53-66. Review. PubMed PMID: 19562005; PubMed Central PMCID: PMC2701150.
  2. Martin B, Ji S, Maudsley S, Mattson MP. “Control” laboratory rodents are metabolically morbid: why it matters. Proc Natl Acad Sci U S A. 2010 Apr 6;107(14):6127-33. Epub 2010 Mar 1. PubMed PMID: 20194732; PubMed Central PMCID: PMC2852022.

Genomics

  1. Tariq MA, Kim HJ, Jejelowo O, Pourmand N. Whole-transcriptome RNAseq analysis from minute amount of total RNA. Nucleic Acids Res. 2011 Oct 1;39(18):e120. Epub 2011 Jul 6. PubMed PMID: 21737426; PubMed Central PMCID: PMC3185437.
  2. Compeau PE, Pevzner PA, Tesler G. How to apply de Bruijn graphs to genome assembly. Nat Biotechnol. 2011 Nov 8;29(11):987-91. doi: 10.1038/nbt.2023. PubMed PMID: 22068540.
  3. Ala-Korpela M, Kangas AJ, Inouye M. Genome-wide association studies and systems biology: together at last. Trends Genet. 2011 Oct 20. [Epub ahead of print] PubMed PMID: 22018481.

Regeneration

  1. Kroehne V, Freudenreich D, Hans S, Kaslin J, Brand M. Regeneration of the adult zebrafish brain from neurogenic radial glia-type progenitors. Development.  2011 Nov;138(22):4831-41. Epub 2011 Oct 17. PubMed PMID: 22007133.

Disease/Evolution

  1. Cusack BP, Arndt PF, Duret L, Roest Crollius H. Preventing dangerous nonsense: selection for robustness to transcriptional error in human genes. PLoS Genet. 2011 Oct;7(10):e1002276. Epub 2011 Oct 13. PubMed PMID: 22022272; PubMed Central PMCID: PMC3192821.
    • Commentary: Wilke CO. Transcriptional robustness complements nonsense-mediated decay in humans. PLoS Genet. 2011 Oct;7(10):e1002296. Epub 2011 Oct 13. PubMed PMID:22022274; PubMed Central PMCID: PMC3192817.
  2. Shelly T, McInnis D. Road test for genetically modified mosquitoes. Nat Biotechnol. 2011 Nov 8;29(11):984-5. doi: 10.1038/nbt.2025. PubMed PMID: 22068534.

Eye Disease

  1. Johnson LV, Forest DL, Banna CD, Radeke CM, Maloney MA, Hu J, Spencer CN, Walker AM, Tsie MS, Bok D, Radeke MJ, Anderson DH. Cell culture model that mimics drusen formation and triggers complement activation associated with age-related macular degeneration. Proc Natl Acad Sci U S A. 2011 Nov 8;108(45):18277-82. Epub 2011 Oct 3. PubMed PMID: 21969589.
  2. Jiang L, Zhang H, Dizhoor AM, Boye SE, Hauswirth WW, Frederick JM, Baehr W. Long-term RNA interference gene therapy in a dominant retinitis pigmentosa mouse model. Proc Natl Acad Sci U S A. 2011 Nov 8;108(45):18476-81. Epub 2011 Oct 31. PubMed PMID: 22042849.

Evolution

  1. Liu R, Ochman H. Stepwise formation of the bacterial flagellar system. Proc Natl Acad Sci U S A. 2007 Apr 24;104(17):7116-21. Epub 2007 Apr 16. Erratum in: Proc Natl Acad Sci U S A. 2007 Jul 3;104(27):11507. PubMed PMID: 17438286; PubMed Central PMCID: PMC1852327.

Systems biology

  1. Navlakha S, Bar-Joseph Z. Algorithms in nature: the convergence of systems biology and computational thinking. Mol Syst Biol. 2011 Nov 8;7:546. doi: 10.1038/msb.2011.78. PubMed PMID: 22068329.
  2. Ala-Korpela M, Kangas AJ, Inouye M. Genome-wide association studies and systems biology: together at last. Trends Genet. 2011 Oct 20. [Epub ahead of print] PubMed PMID: 22018481.
  3. Cheong R, Rhee A, Wang CJ, Nemenman I, Levchenko A. Information transduction capacity of noisy biochemical signaling networks. Science. 2011 Oct 21;334(6054):354-8. Epub 2011 Sep 15. PubMed PMID: 21921160.

Biotech business

  1. Francisco M. Third-quarter biotech job picture. Nat Biotechnol. 2011 Nov 8;29(11):1052. doi: 10.1038/nbt.2037. PubMed PMID: 22068542.

We have briefly touched the subject of stem cell research in the last journal club. The challenge of developing “stem cell” as a useful therapy is three fold:

  1. Turning the clock of a differentiated cell back to the very beginning.
  2. Guiding the resulting dedifferentiated “stem cells” or any kinds of “stem cells” to develop into the appropriate cell types.
  3. Incorporating these new cells into the existing organ system properly.

In one sense, the premise of 1 and 2 is that 3 would happen automatically once you can get the Stem cells. They are not only expected to become the desired cell type, but also are expected to know what to do inside the body. This can be a tall order.

There is actually a lot to learn from basic research to see how mother nature deals with the regeneration problem. Salamander is a great regeneration model. If you cut its limb off, the cells in the wound region will grow back a limb to its entirety.

It has long been thought that these cells that are responsible for the regeneration process are pluripotent, or “stem cell”-like. A very interesting research has proven it is otherwise. The original cells in the limb actually remember their identities, and they will only grow back to their own kind. In other words, muscle cells will become muscle cells, and skin cells will become skin cells.

460039a-f2.2

It looks like that instead of having some very specialized stem cells that switch all the way  back to the beginning, the differentiated cells just go back a few (?) steps and maintain their identities during the process. One wonders how this process is regulated at the network level and what has been lost in us that we do not have this capability anymore. Maybe this talent is still hibernating somewhere in our genome, waiting for us to turn it back on.

References:

Sánchez Alvarado A. A cellular view of regeneration. Nature. 2009 Jul 2;460(7251):39-40. [PubMed][Nature]

Kragl M, Knapp D, Nacu E, Khattak S, Maden M, Epperlein HH, Tanaka EM. Cells keep a memory of their tissue origin during axolotl limb regeneration. Nature. 2009 Jul 2;460(7251):60-5. [PubMed][Nature]