* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Monday, June 23, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

    ‘Puttin’ on the Ritz’: Civic Players bring ‘Young Frankenstein’ to life – Yahoo

    Civic Players Deliver a Hilarious and Unforgettable Performance of ‘Young Frankenstein

    ‘Wheel of Fortune’: Amputee Wins $60,000 After Breaking Incredible ‘Curse’ – Hastings Tribune

    Wheel of Fortune’ Amputee Breaks Incredible ‘Curse’ to Win $60,000!

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    Safety concerns in Deep Ellum create apprehension as the entertainment district gains visitors – CBS News

    Safety Concerns Surge Amid Deep Ellum’s Booming Popularity and Growing Crowds

    Elisabeth Moss’ ‘Handmaid’s Tale’ Emmy chances, by the numbers – Yahoo

    Elisabeth Moss’ ‘Handmaid’s Tale’ Emmy chances, by the numbers – Yahoo

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Promising Technology Stocks To Follow Today – June 22nd – MarketBeat

    Top Technology Stocks to Watch Today – June 22nd

    Technology Convergence Report 2025 – The World Economic Forum

    Technology Convergence Report 2025 – The World Economic Forum

    How AI can help make cities work better for residents – MIT Technology Review

    How AI can help make cities work better for residents – MIT Technology Review

    Tech Champions with Leo Bletnitsky of Healthy Technology Solutions – Buzz Media Group

    Meet Tech Champion Leo Bletnitsky of Healthy Technology Solutions

    Crypto’s true revolution is about humanity, not technology – Cointelegraph

    Crypto’s Real Revolution: Transforming Humanity Beyond Technology

    $1 Billion Problem: New Technology Could Save Your Daily Cup of Coffee – SciTechDaily

    The $1 Billion Challenge: How New Technology Could Rescue Your Daily Cup of Coffee

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

    ‘Puttin’ on the Ritz’: Civic Players bring ‘Young Frankenstein’ to life – Yahoo

    Civic Players Deliver a Hilarious and Unforgettable Performance of ‘Young Frankenstein

    ‘Wheel of Fortune’: Amputee Wins $60,000 After Breaking Incredible ‘Curse’ – Hastings Tribune

    Wheel of Fortune’ Amputee Breaks Incredible ‘Curse’ to Win $60,000!

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    Safety concerns in Deep Ellum create apprehension as the entertainment district gains visitors – CBS News

    Safety Concerns Surge Amid Deep Ellum’s Booming Popularity and Growing Crowds

    Elisabeth Moss’ ‘Handmaid’s Tale’ Emmy chances, by the numbers – Yahoo

    Elisabeth Moss’ ‘Handmaid’s Tale’ Emmy chances, by the numbers – Yahoo

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Promising Technology Stocks To Follow Today – June 22nd – MarketBeat

    Top Technology Stocks to Watch Today – June 22nd

    Technology Convergence Report 2025 – The World Economic Forum

    Technology Convergence Report 2025 – The World Economic Forum

    How AI can help make cities work better for residents – MIT Technology Review

    How AI can help make cities work better for residents – MIT Technology Review

    Tech Champions with Leo Bletnitsky of Healthy Technology Solutions – Buzz Media Group

    Meet Tech Champion Leo Bletnitsky of Healthy Technology Solutions

    Crypto’s true revolution is about humanity, not technology – Cointelegraph

    Crypto’s Real Revolution: Transforming Humanity Beyond Technology

    $1 Billion Problem: New Technology Could Save Your Daily Cup of Coffee – SciTechDaily

    The $1 Billion Challenge: How New Technology Could Rescue Your Daily Cup of Coffee

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

Regenerative Superpower Uncovered: How Jellyfish Tentacles Grow Back in Days

December 25, 2023
in Science
Regenerative Superpower Uncovered: How Jellyfish Tentacles Grow Back in Days
Share on FacebookShare on Twitter

Jellyfish Concept

New research reveals how Cladonema jellyfish can regrow their tentacles in just a few days, highlighting the role of unique stem-like proliferative cells in this rapid regenerative process. This breakthrough offers insights into similar regenerative processes in other species. Credit: SciTechDaily.com

Japanese scientists have uncovered that Cladonema jellyfish regenerate tentacles using stem-like proliferative cells, offering new insights into the blastema formation process and its evolutionary parallels in other species like salamanders.

At about the size of a pinkie nail, the jellyfish species Cladonema can regenerate an amputated tentacle in two to three days — but how? Regenerating functional tissue across species, including salamanders and insects, relies on the ability to form a blastema, a clump of undifferentiated cells that can repair damage and grow into the missing appendage. Jellyfish, along with other cnidarians such as corals and sea anemones, exhibit high regeneration abilities, but how they form the critical blastema has remained a mystery until now.

A research team based in Japan has revealed that stem-like proliferative cells — which are actively growing and dividing but not yet differentiating into specific cell types — appear at the site of injury and help form the blastema.

The findings were published on December 21 in the scientific journal PLOS Biology.

Emergent Model Jellyfish Cladonema

The jellyfish Cladonema pacificum exhibits branched tentacles that can robustly regenerate after amputation. Credit: Sosuke Fujita, The University of Tokyo

“Importantly, these stem-like proliferative cells in blastema are different from the resident stem cells localized in the tentacle,” said corresponding author Yuichiro Nakajima, lecturer in the Graduate School of Pharmaceutical Sciences at the University of Tokyo. “Repair-specific proliferative cells mainly contribute to the epithelium — the thin outer layer — of the newly formed tentacle.”

The resident stem cells that exist in and near the tentacle are responsible for generating all cellular lineages during homeostasis and regeneration, meaning they maintain and repair whatever cells are needed during the jellyfish’s lifetime, according to Nakajima. Repair-specific proliferative cells only appear at the time of injury.

“Together, resident stem cells and repair-specific proliferative cells allow rapid regeneration of the functional tentacle within a few days,” Nakajima said, noting that jellyfish use their tentacles to hunt and feed.

Two Stem-Like Cell Populations in the Regenerating Tentacle

Resident stem cells (green) and repair-specific proliferative cells (red) contribute to tentacle regeneration in Cladonema. Credit: Sosuke Fujita, The University of Tokyo

This finding informs how researchers understand how blastema formation differs among different animal groups, according to first author Sosuke Fujita, a postdoctoral researcher in the same lab as Nakajima in the Graduate School of Pharmaceutical Sciences.

“In this study, our aim was to address the mechanism of blastema formation, using the tentacle of cnidarian jellyfish Cladonema as a regenerative model in non-bilaterians, or animals that do not form bilaterally — or left-right — during embryonic development,” Fujita said, explaining that the work may provide insight from an evolutionary perspective.

Salamanders, for example, are bilaterian animals capable of regenerating limbs. Their limbs contain stem cells restricted to specific cell-type needs, a process that appears to operate similarly to the repair-specific proliferative cells observed in the jellyfish.

“Given that repair-specific proliferative cells are analogs to the restricted stem cells in bilaterian salamander limbs, we can surmise that blastema formation by repair-specific proliferative cells is a common feature independently acquired for complex organ and appendage regeneration during animal evolution,” Fujita said.

Regeneration of Jellyfish Tentacle

At 72 hours after amputation, the regenerating tentacle of Cladonema is fully functional. Credit: Sosuke Fujita, The University of Tokyo

The cellular origins of the repair-specific proliferative cells observed in the blastema remain unclear, though, and the researchers say the currently available tools to investigate the origins are too limited to elucidate the source of those cells or to identify other, different stem-like cells.

“It would be essential to introduce genetic tools that allow the tracing of specific cell lineages and the manipulation in Cladonema,” Nakajima said. “Ultimately, understanding blastema formation mechanisms in regenerative animals, including jellyfish, may help us identify cellular and molecular components that improve our own regenerative abilities.”

Reference: “Distinct stem-like cell populations facilitate functional regeneration of the Cladonema medusa tentacle” by Sosuke Fujita, Mako Takahashi, Gaku Kumano, Erina Kuranaga, Masayuki Miura and Yu-ichiro Nakajima, 21 December 2023, PLOS Biology.
DOI: 10.1371/journal.pbio.3002435

The research is supported by grants from the Japan Society for the Promotion of Science KAKENHI, Japan Science and Technology Agency, Japan Agency for Medical Research and Development, and Japan’s National Institute for Basic Biology collaborative research program.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : SciTechDaily – https://scitechdaily.com/regenerative-superpower-uncovered-how-jellyfish-tentacles-grow-back-in-days/

Tags: RegenerativescienceSuperpower
Previous Post

The Pursuit of Perfection: Ultimate Mid-Infrared Mirror Achieves 99.99923% Reflectivity

Next Post

Ancient Neanderthal DNA Shaping Modern Morning Habits

Promising Technology Stocks To Follow Today – June 22nd – MarketBeat

Top Technology Stocks to Watch Today – June 22nd

June 23, 2025
Steelers Prediction Sees TJ Watt Trade to Buccaneers in Blockbuster – Yahoo Sports

Steelers Prediction Sees TJ Watt Trade to Buccaneers in Blockbuster – Yahoo Sports

June 23, 2025
Senior Thesis Spotlight: Considering facets of human psychology from a data science point of view – Princeton University

Exploring Human Psychology Through the Lens of Data Science: A Senior Thesis Spotlight

June 23, 2025
Medieval gold ring found in castle in Slovakia has rare purple sapphire imported from Sri Lanka – Live Science

Stunning Rare Purple Sapphire Unearthed in Medieval Gold Ring at Slovakian Castle

June 23, 2025
Wisconsin man’s fraud scheme funded lavish lifestyle and over 300 snowmobiles, federal charges say – WPR

Wisconsin man’s fraud scheme funded lavish lifestyle and over 300 snowmobiles, federal charges say – WPR

June 23, 2025
2025 College World Series: Scores, bracket, complete results as LSU wins eighth national title in baseball – CBS Sports

LSU Secures Epic Eighth National Baseball Championship in 2025 College World Series Thriller

June 23, 2025
Top economist who previously sounded the alarm on tariffs sees a possible scenario where Trump ‘outsmarted all of us’ – Fortune

Top Economist Raises Alarming Question: Did Trump Outsmart Everyone on Tariffs?

June 23, 2025
Universal Health Services, Inc.’s (NYSE:UHS) Intrinsic Value Is Potentially 34% Above Its Share Price – Yahoo Finance

Universal Health Services’ True Value Could Be 34% Higher Than Its Current Share Price

June 22, 2025
Millennials taking control in Prince George’s County politics – WTOP

Millennials taking control in Prince George’s County politics – WTOP

June 22, 2025
Technology Convergence Report 2025 – The World Economic Forum

Technology Convergence Report 2025 – The World Economic Forum

June 22, 2025

Categories

Archives

June 2025
MTWTFSS
 1
2345678
9101112131415
16171819202122
23242526272829
30 
« May    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (697)
  • Economy (712)
  • Entertainment (21,611)
  • General (15,520)
  • Health (9,753)
  • Lifestyle (717)
  • News (22,149)
  • People (715)
  • Politics (719)
  • Science (15,931)
  • Sports (21,209)
  • Technology (15,698)
  • World (692)

Recent News

Promising Technology Stocks To Follow Today – June 22nd – MarketBeat

Top Technology Stocks to Watch Today – June 22nd

June 23, 2025
Steelers Prediction Sees TJ Watt Trade to Buccaneers in Blockbuster – Yahoo Sports

Steelers Prediction Sees TJ Watt Trade to Buccaneers in Blockbuster – Yahoo Sports

June 23, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version