Translating Proteomics

Nautilus Biotechnology
Translating Proteomics

‘Translating Proteomics’ explores the science of proteomics and its growing impact on biological research, biomarker discovery, drug development, food and energy security, and a range of other timely topics. Hosts Parag Mallick Ph.D. and Andreas Huhmer Ph.D. of Nautilus Biotechnology aim to share their perspectives on important issues in proteomics, deepen your love of science, and prompt you to question assumptions about what may be possible.

  1. 2024 Year-End Special: 3 Exciting Examples of Proteomics Research

    3 DAYS AGO

    2024 Year-End Special: 3 Exciting Examples of Proteomics Research

    On this special, year-end episode of Translating Proteomics, hosts Parag Mallick and Andreas Huhmer discuss three of their favorite proteomics publications from 2024. They'll cover one paper in each of the following topic areas: Proteomics in pre-clinical researchProteomics in basic researchTechnology development in proteomics Synopses of each of the papers can be found below and you can find many more insights in the podcast. Decrypting the molecular basis of cellular drug phenotypes by dose-resolved expression proteomicsIn this work from Professor Bernhard Kuster’s Lab at the Technical University of Munich, researchers assess protein abundance changes that result from treating Jurkat acute T cell leukemia cells with 144 drugs over five drug doses. The researchers use their proteomic data to generate millions of dose response curves for the thousands of proteins measured and discover that the drugs impact many more proteins and pathways than those identified as drug targets. In addition, they checked how 7 of the drug treatments impacted the transcriptome and found there was often discordance between impacts at the mRNA level and the protein level. This works highlights the many ways drugs can impact biological systems and suggests that similar studies will help researchers understand the effects of drug treatments and may even aid in the development of more effective or more specific therapies. Find the publication here. Natural proteome diversity links aneuploidy tolerance to protein turnoverAs we discussed on a previous episode of Translating Proteomics, genome alterations often fail to faithfully propagate to the proteome. In this work, researchers from the labs of Professor Judith Berman at Tel Aviv University and Professor Markus Ralser at the Charité - Universitätsmedizin Berlin, investigate the means through which yeast strains adapt to chromosome gains or losses (aneuploidy). They assess the concordance between changes in mRNA and protein expression in aneuploid yeast that were either found in nature or generated in the lab. The researchers observed dosage compensation, a tendency to return to expression levels associated with normal chromosome numbers, for both mRNAs and proteins expressed on aneuploid chromosomes. However, dosage compensation was much stronger at the protein level than the mRNA level and even stronger at the protein level in naturally aneuploid strains compared to lab-generated strains. This work suggests that multiomics efforts are necessary to determine the effects of genomic alterations. In addition, the authors find that protein degradation, as observed through increased ubiquitination, increased turnover of proteins encoded in aneuploid chromosomes, and the up regulation of the proteasome complex, is a key means of dosage compensation. Finally, because the naturally aneuploid strains achieved a higher level of dosage compensation than the lab-generated strains, the authors suggest there has been selection for natural aneuploid strains that down-regulate proteins causing detrimental effects. a...

    52 min
  2. A New Era In Alzheimer's Research with Sarah DeVos

    OCT 30

    A New Era In Alzheimer's Research with Sarah DeVos

    Do you have a question you'd like answered on a future episode of Translating Proteomics? Send it to translatingproteomics@nautilus.bio! On this episode of Translating Proteomics, host Andreas Huhmer discusses advances in Alzheimer’s research with special guest and Curie Bio Drug Maker in Residence, Sarah DeVos Ph.D. Their conversation focuses on: The impact of molecular diagnostics on Alzheimer’s researchRecent Alzheimer’s drug approvalsThe future of Alzheimer’s research *Small edit on Sarah's background - She did her graduate work at Washington University in St. Louis and a Postdoc at Massachusetts General Hospital* Chapters00:00 – Introduction 01:54 – Why Sarah began studying Alzheimer’s 03:39 – Current tools and needs for future Alzheimer’s diagnostics 09:52 – Recent drug approvals in the Alzheimer’s space and their relationship to diagnostics 14:26 – Is it possible to develop biomarkers that detect Alzheimer’s at its earliest stages? 16:36 – What is limiting the development of new Alzheimer’s biomarkers? 17:51 – The DIAN trials and learnings from studying dominantly inherited Alzheimer’s 19:33 – The genetics of Alzheimer’s 22:19 – Novel approaches to identifying and understanding Alzheimer’s pathology  25:54 – Where can proteomics advance Alzheimer’s research? 31:25 – The role of proteomics in Alzheimer’s animal models 34:33 – Sarah’s hopes for the next 10 years of Alzheimer’s research 41:39 - Outro ResourcesDominant Inherited Alzheimer’s Network (DIAN) trials research updates o   In the DIAN trials, researchers work with families to study various clinical and basic science aspects of dominantly inherited Alzheimer’s disease. Amyloid plaque reducing clinical trials: o   Two Randomized Phase 3 Studies of Aducanumab in Early Alzheimer's Disease (Haeberlein et al. 2022) o   Donanemab in Early Symptomatic Alzheimer Disease - The TRAILBLAZER-ALZ 2 Randomized Clinical Trial (Sims et al. 2023) o   Lecanemab in Early Alzheimer’s Disease (Van Duck et al. 2022) Blood Biomarkers to Detect Alzheimer Disease in Primary Care and Secondary Car (Palmqvist et al. 2024) o   Clinical research into a new phospo-tau biomarker that can help physicians more effectively diagnose Alzheimer’s disease Resurrecting the Mysteries of Big Tau (Fischer and Baas 2021) o   Review covering a potentially neuro-protective form of tau called “Big tau” Integrated Proteomics to Understand the Role of Neuritin (NRN1) as a Mediator of Cognitive Resilience...

    42 min
  3. Plasma Proteomics - The Dream and the Nightmare

    OCT 28

    Plasma Proteomics - The Dream and the Nightmare

    Do you have a question you'd like answered on a future episode of Translating Proteomics? Send it to translatingproteomics@nautilus.bio! On this episode of Translating Proteomics, hosts Parag Mallick and Andreas Huhmer of Nautilus Biotechnology discuss the challenges and opportunities of plasma proteomics. Their conversation focuses on: ·      Why blood plasma may be a good source of protein biomarkers ·      Current methodologies and pitfalls in plasma proteomics ·      The path forward for plasma proteomics What is Plasma Proteomics?For those who are new to this topic, plasma is the liquid portion of the blood distinct from fractions containing red and white blood cells. Given the relatively non-invasive ways physicians can collect patient plasma, and the blood’s intimate association with tissues throughout the body, plasma is potentially an excellent source of protein biomarkers. Yet, it is quite difficult to measure the levels of all plasma proteins because their concentrations span over 12 orders of magnitude. This episode features an in-depth discussion of the ways plasma proteomics efforts have and have not lived up to the promise of biomarker discovery and what we can do to advance plasma biomarker discovery efforts in the future. Chapters00:00 – 01:01 – Intro 01:02 – 4:55 – What is the promise of plasma proteomics? 04:55  – 07:23 – Is the plasma proteome really the best source of biomarkers? 07:23 – 10:16 – How do proteins get into the blood and what are the implications for biomarker discovery? 10:16 – 13:59 – Is it clear that proteins are the best candidates for blood biomarkers? 13:59 – 19:57 – Advances in and the future of comprehensive plasma proteomics 19:57 – 22:31 – Pros and cons of fractionating the plasma proteome to discover biomarkers 22:31 – 28:14 – Progress in identifying multiomic plasma biomarkers and the path forward 28:14 – End – Outro ResourcesNano-omics: nanotechnology-based multidimensional harvesting of the blood-circulating cancerome (Gardner et al. 2022) o   Review from focused on the development multiomics liquid biopsies Multicompartment modeling of protein shedding kinetics during vascularized tumor growth (Machiraju et al. 2020) o   Work from Parag’s Lab investigating tumor protein shedding Simulation of the Protein-Shedding Kinetics of a Fully Vascularized Tumor (Frieboes et al. 2015) o   Tumor protein shedding work from Parag’s Lab Mathematical model identifies blood biomarker-based early cancer detection strategies and limitations (Hori and Gambhir et al. 2011) o   Study modeling how much protein could be shed and detected from different size tumors a href="https://pubmed.ncbi.nlm.nih.gov/12488461/" rel="noopener noreferrer"...

    29 min
  4. Protein Function 201 with Kathryn Lilley

    OCT 17

    Protein Function 201 with Kathryn Lilley

    Do you have a question you'd like answered on a future episode of Translating Proteomics? Send it to translatingproteomics@nautilus.bio! Proteins adopt a wide variety of functions depending upon factors like their location in the cell, their modifications, and the biomolecules they interact with. While many of us may have been taught that single genes produce single proteins that have single functions, protein function is far more dynamic than that. In this episode of Translating Proteomics, Nautilus Co-Founder and Chief Scientist Parag Mallick sits down with University of Cambridge Professor and proteomics expert Kathryn Lilley to discuss our evolving understanding of protein function. They cover: How they came to realize protein function is more complex than one gene, one enzyme, one functionFactors that give rise to the dynamic complexity of protein function including proteoforms, protein localization, and moonlightingSteps we can take to better understand and teach others about the complexities of protein function Research diving into the complexities of protein functionResearch from the Beltrao Lab using bioinformatics techniques to identify functional phosphosites (Ochoa et al. 2020)Work from the Lilley Lab integrating techniques to investigate ome-wide localization of both RNA and protein (Villanueva et al. 2024)Lilley Lab preprint investigated protein localization changes in a cancer cell line as a result of ionizing radiation treatment (Christopher et al. 2024).Collaborative work with the Lundberg Lab mapping subcellular proteomics (Thul et al. 2017). Additional protein function resourcesMoonProt - A database for moonlight proteins from Professor Constance Jeffrey's LabTranslating Proteomics Episode 5 - Why the Biology Surrounding Biology's Central Dogma is Wrong

    46 min

Ratings & Reviews

5
out of 5
6 Ratings

About

‘Translating Proteomics’ explores the science of proteomics and its growing impact on biological research, biomarker discovery, drug development, food and energy security, and a range of other timely topics. Hosts Parag Mallick Ph.D. and Andreas Huhmer Ph.D. of Nautilus Biotechnology aim to share their perspectives on important issues in proteomics, deepen your love of science, and prompt you to question assumptions about what may be possible.

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