July marked the transition from the primary screening phase of our Niemann-Pick C drug discovery campaign to the hit validation phase. And lots more happenings in and around the lab.
Our Med Chem advisor @JohnTuckerPhD is in the lab today reviewing hits from our NPC screens.
— Perlara (@PerlaraPBC) July 1, 2015
https://twitter.com/JohnTuckerPhD/status/616333838931734528
We started out the month with a visit from our Med Chem advisor. We spent the poring over chemical structures in search of meaningful structure-activity relationships (SAR). And we took a break to have lunch at the Dogpatch dog park.
A rap about Niemann-Pick C by @BabaBrinkman https://t.co/y9oF8hIrQl
— Perlara (@PerlaraPBC) July 2, 2015
Our favorite science hip hop artist, Baba Brinkman, creator of the Gene’s Eye View rap about the evolutionary origins of Mendelian diseases, cut another track for PLab, this time about Niemann-Pick C. (The companion video is currently in production, so stayed tuned for more).
.@IyerSangeetha has a recap of #worm15 http://t.co/whr8eQUHlq cc @GeneticsGSA @aexbrown @tracey_423 @MondouxLab @ErichMSchwarz @MHendr1cks
— Perlara (@PerlaraPBC) July 7, 2015
Sangeetha attended the biennial C. elegans meeting in June at UCLA, where she presented data on our NPC screens. Next year the whole PLab team will attend GSA’s multi-model-organism bonanza in Orlando.
We're analyzing our 50K-compound, 3-species NPC screens. Here's prelim fly hit histograms (0-5 surviving larvae): pic.twitter.com/hR5IK0Tnui
— Perlara (@PerlaraPBC) July 8, 2015
Here’s an example of preliminary summary data of the NPC fly screen. At some point, hopefully next year, we’ll be publishing these screens, which are the first of their kind in terms of using model organisms in drug screens for monogenic diseases.
Prices of orphan drugs for monogenic diseases partly explained by patient population: fewer patients -> higher price. pic.twitter.com/6SP3DXu36o
— Perlara (@PerlaraPBC) July 13, 2015
Another dataset we worked on this summer had nothing to do with our NPC screens. Instead, we took a closer look at orphan drugs for monogenic diseases, including the rate of orphan drug approvals and their costs over the last 30 years. You can read the two installments here, and here.
At exl Pharma 2nd Rare Disease Collaboration Summit in Philly. Look forward to networking and presenting. pic.twitter.com/m61ednVABK
— Nina DiPrimio (@NinaDiPrimio) July 15, 2015
Nina was in Philly attending the 2nd Rare Disease Collaboration Summit sponsored by ExLPharma. She presented our progress to an audience of potential clinical partners and interested patient advocacy groups.
Why do Purkinje cells die in NPC disease? @hartl_tom explains on our blog: http://t.co/uN11AxBToT pic.twitter.com/U5l3s56bFT
— Perlara (@PerlaraPBC) July 16, 2015
Tom penned a post about Niemann-Pick C, specifically why certain populations of neurons in the cerebellum called Purkinje cells can’t survive in the absence of NPC1 function.
PLab Scientists @NinaDiPrimio and @IyerSangeetha explain what we do http://t.co/RgdBP4FpKe
— Perlara (@PerlaraPBC) July 22, 2015
Nina and Sangeetha talk about what we do at PLab for a promotional video produced by a group that visited QB3@953 this summer in search of biotech startup stories.
Can you spot the recombinant? Hint: 2 copies of white. @PerlsteinLab @Tamy_Portillo pic.twitter.com/IYhFKgstUU
— Tom Hartl (@hartl_tom) July 23, 2015
Remember your Punnett squares and meiotic recombination? Here’s Tom and Tamy have a little fun with basic fly genetics.
We were able to replicate the liquid growth assay! Next up: spotting assay and screens @PerlsteinLab cc @surfiving pic.twitter.com/RcKgESnLng
— Maria Teresa Chavez (@materechm) July 24, 2015
Maria, our summer intern, worked hard all month to generate this control data, which confirmed that the ALS yeast models we received from Dr. Aaron Gitler’s lab behaved as expected. Maria wraps up her internship at the of August, and will hopefully be able to share her screening results then.
Yet another example of functional conservation between a yeast gene and its human homolog https://t.co/ZDUvUtXxd8
— Perlara (@PerlaraPBC) July 28, 2015
We’re always on the lookout for papers that demonstrate evolutionary conservation between human genes and their ancestral counterparts in model organisms.
.@NinaDiPrimio explores the unexpected connection between Niemann-Pick C and Ebola virus http://t.co/W5IxDR0spe pic.twitter.com/Cb00aA1LPy
— Perlara (@PerlaraPBC) July 29, 2015
Nina, who used to think a lot of viruses in her graduate work, got to flex her virology knowledge in service of Niemann-Pick C, as she explains in this blogpost. She will continue to blog about how lessons from virology unexpectedly apply to rare genetic diseases like NPC.
Hope everyone is enjoying their summers. See you next month!