Quinn Sievers

@quinnsievers.bsky.social

Instructor in Lymphoma at Memorial Sloan Kettering and postdoc in the Abdel-Wahab and Vinogradova labs | Big problems, small molecules 🏳️‍🌈

In case you missed this Cancer Discovery paper in the news last week: First-in-Human Testing of a Mutant KRAS Vaccine for Pancreatic Cancer Interception in High-Risk Cohorts - by Daniel Haldar, Amanda Huff, Michael Goggins, Elizabeth Jaffee, Neeha Zaidi, and colleagues @aacrjournals.bsky.social

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American Association for Cancer Research (AACR)@theaacr.bsky.social · 3w ago

A vaccine to intercept pancreatic cancer in high-risk individuals was safe and elicited specific and durable immune responses, according to research published in the AACR journal Cancer Discovery. Learn more: www.aacr.org/about-the-aa...

Yesterday the US Administration supercharged its explicit effort to bar international students from staying in the US after graduation. All Americans should know: 1/3 of *all* STEM PhDs working in the US are immigrants who graduated from US universities, then stayed. www.piie.com/index%2Ephp/...

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This radiating honeycomb is the glass skeleton of a diatom, captured via confocal microscopy from marine sediment off Namibia's coast. Invisible to the naked eye, diatoms & other phytoplankton produce 20%–50% of Earth's oxygen every year. 📷: Igor Siwanowicz, Janelia Research Campus.

Microscopy image of a diatom viewed head-on against a black background, revealing an intricate honeycomb-like silica shell (frustule) in extraordinary detail. Thousands of tiny hexagonal pores cover the circular surface, transitioning from warm amber and gold at the top to vivid teal and blue-green toward the center and bottom. A delicate starburst or rosette pattern is visible at the lower center, converging on a single dark central point. The overall effect is geometric and jewel-like, resembling stained glass or a mosaic.

Bone grows from the inside out, and this fluorescence micrograph of a developing mouse femur reveals the choreography underneath: osteoclasts (red) clear cartilage (purple) to make room for blood vessels (yellow), marrow, and new bone. 📸 Paul R. Odgren, @umasschan.bsky.social

Fluorescence micrograph of a cross-section through a developing mouse femur. At the center, densely packed yellow-gold structures — blood vessels — are surrounded by a luminous white interior. Blue-gray osteoclasts ring the inner cavity, and vivid red tissue forms the outer boundary of the developing bone. The surrounding tissue fades to soft purple and pink at the edges. The overall composition is circular and jewel-like, resembling an abstract painting.

Our kind of fireworks: fruit fly neurons stacked in a rapid succession of rainbow colors. This video shows a small sampling of the more than 135,000 neurons in a typical fruit fly's brain, imaged by researchers at our Janelia Research Campus using multicolor flipout technique 🎆