Studi kaitkan sel darah manusia dengan nenek moyang berusia 700 juta tahun

Rabu, 27 Mei 2026

Dilaporkan oleh AI

Para peneliti di Kyoto University telah melacak asal-usul sel darah manusia hingga ke organisme bersel satu yang hidup sekitar 700 juta tahun lalu. Analisis mereka menunjukkan bahwa sel kekebalan tubuh modern mencerminkan jalur evolusi kuno yang bermula sejak kemunculan hewan multiseluler.

Tim tersebut mengembangkan metode baru untuk membandingkan ekspresi gen di berbagai jenis sel dan spesies. Pendekatan ini memungkinkan mereka untuk menyusun pohon evolusi bagi garis keturunan sel darah dan mengidentifikasi kemiripan dengan organisme uniseluler. Makrofag menunjukkan hubungan paling erat dengan nenek moyang awal ini, yang menunjukkan bahwa mereka mewakili bentuk sel darah tertua.

Study finds blood-cancer-linked mutations in brain immune cells tied to Alzheimer’s pathology

Jumat, 12 Juni 2026 Dilaporkan oleh AI Gambar dihasilkan oleh AI Fakta terverifikasi

Researchers at Boston Children’s Hospital report that mutations commonly associated with clonal blood-cell expansion and some blood cancers were enriched in microglia-like immune cells in Alzheimer’s brains and were also detectable in matched blood samples. The Cell study proposes that age- or injury-related weakening of the blood-brain barrier could allow mutated blood immune cells to enter the brain, potentially amplifying inflammation and contributing to neurodegeneration.

USC scientists create renewable supply of cancer-fighting cells

Researchers at USC Stem Cell have developed a method to produce large numbers of immune cell precursors that can be engineered to target cancer. The approach, published in the journal Cell, uses granulocyte-monocyte progenitors that self-renew in the laboratory.

Researchers propose lineage model for brain development

Kamis, 25 Juni 2026 Dilaporkan oleh AI

A new theory from scientists at Cold Spring Harbor Laboratory suggests that brain cells use their cellular family tree to organize into a complex organ. The model explains how a single starting cell can form a brain with roughly 170 billion precisely positioned neurons.

Health

Scientists begin unlocking nanoscale immune system secrets

Health

Study links monocyte “biological aging” in blood to emotional depression symptoms in women with and without HIV

Science

Team creates prototype synthetic cell with 36 genes

DNA study uncovers third ancestral group in Japanese population

A large-scale genetic analysis has identified a previously overlooked third ancestral group in Japan, challenging the long-held dual origins theory. Researchers linked the new ancestry to the ancient Emishi people of northeastern Japan. The findings also connect archaic DNA from Neanderthals and Denisovans to modern health conditions.

McGill researchers use reversible drug approach to boost natural killer cells against hard-to-treat cancers

Senin, 25 Mei 2026 Dilaporkan oleh AI Fakta terverifikasi

Researchers at McGill University report a drug-based method to temporarily enhance natural killer (NK) cells—an immune cell type—by inhibiting two proteins, improving the cells’ ability to attack several aggressive cancers in preclinical experiments.

26 Juni 2026 03.15

Studi kaitkan sel darah manusia dengan nenek moyang berusia 700 juta tahun

Artikel Terkait

Study finds blood-cancer-linked mutations in brain immune cells tied to Alzheimer’s pathology

USC scientists create renewable supply of cancer-fighting cells

Researchers propose lineage model for brain development

Scientists begin unlocking nanoscale immune system secrets

Study links monocyte “biological aging” in blood to emotional depression symptoms in women with and without HIV

Team creates prototype synthetic cell with 36 genes

DNA study uncovers third ancestral group in Japanese population

McGill researchers use reversible drug approach to boost natural killer cells against hard-to-treat cancers

Ancient human DNA found on cave art for first time

Scientists identify “footprints of death” that can aid immune cleanup—and may be exploited by influenza

Ancient Denisovan DNA still shapes human immunity today

Review argues some “senescent” cells can support tissue repair, complicating anti-aging strategies

Brazil fossil reanalysis challenges early animal origins

Swedish team restores blood sugar control in diabetic mice

Cryo-expansion microscopy captures 3D architecture of killer T cells at the immune synapse, including in human tumors

Situs web ini menggunakan cookie