{
  "id": 17656,
  "title": "How molecular tethers and asynchronous replication drive parasite proliferation",
  "url": "https://urgent.news/2026/08/01/how-molecular-tethers-and-asynchronous-replication-drive-parasite",
  "topic": "health",
  "section": "Health & Medicine",
  "published": "2026-08-01T21:00:01.000Z",
  "source": {
    "name": "Phys.org",
    "slug": "phys-org",
    "url": "https://phys.org/news/2026-07-molecular-tethers-asynchronous-replication-parasite.html"
  },
  "original_language": "en",
  "account": "Malaria parasites reproduce in a distinct manner, unlike human cells which split into two. Instead, they first duplicate their genetic material significantly before generating an equal number of daughter parasites all at once. Scientists from Heidelberg University's Faculty of Medicine, Harvard Medical School, and the German Cancer Research Center have recently shed light on the molecular processes behind this unique proliferation strategy. Their research offers valuable insights into how the parasite optimizes the use of scarce resources inside infected blood cells, potentially paving the way for novel antimalarial treatments.\n\nIn one study, researchers led by Professor Friedrich Frischknecht and Professor Jeffrey Dvorin discovered a molecular tether connecting the parasite's new nuclei to the tip of budding daughter cells. This tether, formed by two proteins, is crucial for the proper development and invasion of the host cell. Without it, the formation of functional daughter parasites is severely disrupted, especially in mosquitoes where it prevents the production of infectious stages that transmit the disease to humans.\n\nAnother study revealed that during the blood stage of infection, the parasite's nuclei multiply asynchronously. This means that while one nucleus is replicating its genome, a neighboring nucleus may already be dividing. By analyzing high-resolution live-cell microscopy and employing mathematical modeling, researchers from Heidelberg University's Faculty of Medicine and the Institute for Theoretical Physics and BioQuant Center found that nuclei compete for a limited protein resource needed for genome replication. As a result, nuclei replicate their genetic material at different times, ensuring that resources are used efficiently without causing a slowdown in proliferation. This asynchronous replication system allows the parasite to multiply more rapidly and efficiently than if all nuclei were to duplicate simultaneously.",
  "summary": "Malaria parasites proliferate in an unusual way. Rather than dividing into two daughter cells like human cells, they first amplify their genetic material tenfold, hundredfold or even thousandfold before simultaneously producing a corresponding number of daughter parasites. Until now, the mechanisms controlling these processes were only partly understood.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}