Cell Biology

SUMOylation regulates protein cargo in Astrocyte-derived small extracellular vesicles

1. Anllely Fernández
2. Maxs Méndez
3. Octavia Santis
4. Katherine Corvalan
5. Maria-Teresa Gomez
6. Peter Landgraf
7. Thilo Kahne
8. Alejandro Rojas-Fernandez
9. Ursula Wyneken

Reviewed by PREreview

Interferon-Induced PARP14-Mediated ADP-Ribosylation in p62 Bodies Requires an Active Ubiquitin-Proteasome System

1. Rameez Raja
2. Banhi Biswas
3. Rachy Abraham
4. Hongrui Liu
5. Che-Yuan Chang
6. Hien Vu
7. Anthony K. L. Leung

Reviewed by PREreview, Review Commons

Chromokinesin Klp-19 regulates microtubule overlap and dynamics during anaphase in C. elegans

1. Vitaly Zimyanin
2. Magdalena Magaj
3. Nadia Ingabire Manzi
4. Che-Hang Yu
5. Theresa Gibney
6. Yu-Zen Chen
7. Mustafa Basaran
8. Xavier Horton
9. Karsten Siller
10. Ariel Pani
11. Daniel Needleman
12. Daniel J. Dickinson
13. Stefanie Redemann

Reviewed by Review Commons

IDH1 regulates human erythropoiesis by eliciting chromatin state reprogramming

1. Mengjia Li
2. Hengchao Zhang
3. Xiuyun Wu
4. Mengqi Yu
5. Qianqian Yang
6. Lei Sun
7. Wei Li
8. Zhongxing Jiang
9. Fumin Xue
10. Ting Wang
11. Xiuli An
12. Lixiang Chen

• Curated by eLife

  eLife Assessment

  This study by Li et al. presents important findings on the metabolism-independent role of nuclear IDH1 in chromatin regulation during erythropoiesis. The authors provide convincing evidence that IDH1 deficiency disrupts H3K79 methylation and nuclear architecture, contributing to dyserythropoiesis. Their findings offer invaluable mechanistic insights with potential therapeutic implications for erythroid disorders and hematologic malignancies.

Reviewed by eLife

MARK2 regulates Golgi apparatus reorientation by phosphorylation of CAMSAP2 in directional cell migratio

1. Peipei Xu
2. Rui Zhang
3. Zhengrong Zhou
4. Honglin Xu
5. Yuejia Li
6. Mengge Yang
7. Ruifan Lin
8. Yingchun Wang
9. Xiahe Huang
10. Qi Xie
11. Wenxiang Meng

• Curated by eLife

  eLife Assessment

  The authors propose that the kinase MARK2 regulates the Golgi's reorientation towards the cell's leading edge through the regulation of microtubule binding protein CAMSAP2 and its binding to USO1. While the model is interesting and the study is useful, the quantification of an insufficient number of cells and insufficient description of the methods and biological replicates mean the results are inadequate to support the model.

  [Editors' note: this paper was reviewed by Review Commons.]

Reviewed by eLife

Periosteal skeletal stem cells can migrate into the bone marrow and support hematopoiesis after injury

1. Tony Marchand
2. Kemi E Akinnola
3. Shoichiro Takeishi
4. Maria Maryanovich
5. Sandra Pinho
6. Julien Saint-Vanne
7. Alexander Birbrair
8. Thierry Lamy
9. Karin Tarte
10. Paul Frenette
11. Kira Gritsman

• Curated by eLife

  eLife Assessment

  The study presents valuable insights into the role of periosteal stem cells in bone marrow regeneration. The evidence is convincing. The data broadly support their claims and in line with state-of-art methodology. Future study on their model will help to strengthen their discovery further.

Reviewed by eLife

Rudhira-mediated microtubule stability controls TGFβ signaling during mouse vascular development

1. Divyesh Joshi
2. Preeti Jindal
3. Ronak K Shetty
4. Maneesha S Inamdar

• Curated by eLife

  eLife Assessment

  This important work provides another layer of regulatory mechanism for TGF-beta signaling activity. The evidence convincingly supports the involvement of microtubules as a reservoir of Smad2/3, and association of Rudhira with microtubules is critical for this process. The work will be of board interest to developmental biologists in general and molecular biologists in the field of growth factor signaling.

Reviewed by eLife

Probing metazoan polyphosphate biology using Drosophila reveals novel and conserved polyP functions

1. Sunayana Sarkar
2. Harsha Sharma
3. SK Yasir Hosen
4. Jayashree S Ladke
5. Deepa Balasubramanian
6. Sreejith Raran-Kurussi
7. Rashna Bhandari
8. Manish Jaiswal

• Curated by eLife

  eLife Assessment

  Studying the biological roles of polyphosphates in metazoans has been a longstanding challenge to the field given that the polyP synthase has yet to be discovered in metazoans. This important study capitalizes on the sophisticated genetics available in the Drosophila system and uses a combination of methodologies to start to tease apart how polyphosphate participates in Drosophila development and in the clotting of Drosophila hemolymph. The data validating the tools are solid and well-documented and they will open up a field of research into the functional roles of polyP in a metazoan model.

Reviewed by eLife

Macromolecular condensation is unlikely to buffer intracellular osmolality

1. Alan R. Kay
2. Zahra Aminzare

• Curated by Biophysics Colab

  Evaluation Statement (30 January 2025)

  Kay and Aminzare discuss a claim made in a prior publication that macromolecular condensation acts as a water buffering mechanism in cells to compensate for the effects of osmotic shock. The authors argue that, although such a buffer could temporarily maintain a transmembrane osmolality differential, this differential would drive water across the membrane to reach a steady-state in which osmolality within the cell equals osmolality outside the cell. Using the well-established pump-leak model for osmotic water transport, they further show that the timescale at which a water buffer could maintain a modest 10% osmolality differential across the membrane is at most one minute for a typical animal cell.

  Biophysics Colab recommends this study to researchers working on membrane transport, intracellular water buffering, and condensate biology.

  Biophysics Colab has evaluated this study as one that meets the following criteria:

  • Rigorous methodology
  • Transparent reporting
  • Appropriate interpretation

Reviewed by Biophysics Colab

The full-length BEND2 protein is dispensable for spermatogenesis but required for setting the ovarian reserve in mice

1. Yan Huang
2. Nina Bucevic
3. Carmen Coves
4. Natalia Felipe-Medina
5. Marina Marcet-Ortega
6. Nikoleta Nikou
7. Cristina Madrid-Sandín
8. Maria López-Panadés
9. Carolina Buza
10. Neus Ferrer Miralles
11. Antoni Iborra
12. Anna Pujol
13. Alberto M Pendás
14. Ignasi Roig

• Curated by eLife

  eLife Assessment

  This study provides valuable information on a novel gene that regulates meiotic progression in both male and female meiosis. The evidence supporting the conclusions of the authors is solid. This study will be of interest to developmental and reproductive biologists.

Reviewed by eLife