Article
Cell & Tissue Engineering
Fiona R. Passanha, Madeleine L. Divinagracia, Vanessa L. S. LaPointe
Summary: Cadherin-11 regulates the activity of RTKs in hMSCs, affecting the activation of the MAPK pathway and cell proliferation.
Article
Biochemistry & Molecular Biology
Xiaoxiao Zhou, Zhili Ren, Jiaqi Xu, Chunhao Deng, Zhaoying Zhang, Carlos Godoy-Parejo, Faxiang Xu, Esther Chi Cheng Huang, Jiajia Wang, Zheyu Cai, Weiwei Liu, Guang Hu, Guokai Chen
Summary: Insulin regulates the survival and proliferation of human pluripotent stem cells by modulating RNA translation through different pathways. It activates the AKT signaling pathway to inhibit the translation of pro-apoptotic proteins, promoting cell survival. At the same time, insulin enhances cell proliferation through the mTOR pathway. This study uncovers the multifaceted regulation of insulin in hPSC survival and proliferation, with RNA translation playing a key role.
INTERNATIONAL JOURNAL OF BIOLOGICAL SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Sasja Blokzijl-Franke, Bas Ponsioen, Stefan Schulte-Merker, Philippe Herbomel, Karima Kissa, Suma Choorapoikayil, Jeroen den Hertog
Summary: The study found that HSPCs in mutant zebrafish embryos lacking pten function exhibited death during development, which could be rescued by inhibiting PI3K, while inhibiting PI3K in wild-type embryos also induced HSPC death. PI3K signaling tightly controls HSPC survival, with both up- and downregulation of the signaling pathway reducing stemness of HSPCs.
Article
Cell Biology
Julia Huemmer, Saskia Kraus, Katharina Braendle, Cornelia Lee-Thedieck
Summary: The study systematically evaluated the concentration-dependent effects of NO on human HSPC behavior in vitro, revealing a biphasic role where low concentrations activated NO signaling and promoted proliferation, while high concentrations slowed proliferation and induced differentiation. This highlights the importance of using appropriate NO concentrations in in vitro cultures of HSPCs, with potential implications for clinical application in cellular therapies.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2021)
Article
Multidisciplinary Sciences
Zhenhe Zhang, Miles Freeman, Yiqiang Zhang, Danny El-Nachef, George Davenport, Allison Williams, W. Robb MacLellan
Summary: Accumulating data shows that CMs can regenerate from pre-existing CMs, but the absolute magnitude of self-renewal is low. Modifying epigenetic histone modifications or activating the Hippo-Yap pathway can enhance adult CM cycling and proliferation, but it is unknown if they work through common pathways or act independently.
Article
Hematology
Valentina Vavassori, Samuele Ferrari, Stefano Beretta, Claudia Asperti, Luisa Albano, Andrea Annoni, Chiara Gaddoni, Angelica Varesi, Monica Soldi, Alessandro Cuomo, Tiziana Bonaldi, Marina Radrizzani, Ivan Merelli, Luigi Naldini
Summary: Ex vivo gene editing in T cells and HSPCs can be improved by using lipid nanoparticles for RNA delivery, which reduces cell death and improves cell growth, leading to better editing efficiency.
Article
Chemistry, Multidisciplinary
Dhiraj Indana, Pranay Agarwal, Nidhi Bhutani, Ovijit Chaudhuri
Summary: This research utilized viscoelastic alginate hydrogels to study hiPSC morphogenesis in 3D culture. Higher RGD density and fast stress relaxation were found to promote hiPSC viability, proliferation, and lumen formation, while slow stress relaxation at low RGD densities triggered hiPSC apoptosis.
ADVANCED MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Lindsay Kraus, Chris Bryan, Marcus Wagner, Tabito Kino, Melissa Gunchenko, Wassy Jalal, Mohsin Khan, Sadia Mohsin
Summary: Research indicates that in the absence of Bmi1, CBSCs lose their proliferative and survival potential, likely due to changes in histone modifications. By regulating the cell cycle, Bmi1 plays a critical role in CBSCs.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Analytical
Pilar Carreras, Itziar Gonzalez, Miguel Gallardo, Alejandra Ortiz-Ruiz, Maria Luz Morales, Jessica Encinas, Joaquin Martinez-Lopez
Summary: The study presented a new microfluidic technique to construct a 3D biomimetic model replicating the human hematopoietic stem cell niche, showing long-term maintenance and expansion of cells encapsulated in double-layered hydrogel beads. Results indicated viable and expanded human CD34+ cells from bone marrow in the proposed biomimetic model over eight weeks. This novel long-term stem cell culture methodology could have implications for improving Hematopoietic Progenitor cell Transplantation and serve as a tool for further investigation of factors influencing stem cell behavior.
Article
Cell Biology
Juan Gao, Shuaibing Hou, Shengnan Yuan, Yuxia Wang, Yanan Gao, Xiaolu Sun, Weili Wang, Yajing Chu, Yuan Zhou, Xiaoming Feng, Hongbo R. Luo, Tao Cheng, Jun Shi, Weiping Yuan, Xiaomin Wang
Summary: Research shows that Rheb1-deficiency in neutrophils can remodel the bone marrow environment and induce HSC expansion, possibly by impairing their ability to secrete IL-6, affecting the production of SCF by MSCs, and promoting HSC proliferation.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Teekaraman Dhanaraj, Manju Mohan, Jagadeesan Arunakaran
Summary: Research has shown that quercetin inhibits the survival and proliferation of human metastatic ovarian cancer cells by inactivating PI3K/Akt, Ras/Raf pathways, and EGFR expression. It also alters N-cadherin expression, decreases gelatinase secretion and MMP-2/-9 gene expression, and inhibits migration and adhesion of the cancer cells. These findings suggest that quercetin could be a valuable therapeutic drug for the treatment and prevention of metastatic ovarian cancer.
ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS
(2021)
Article
Multidisciplinary Sciences
Lu Cui, Ignacio Moraga, Tristan Lerbs, Camille Van Neste, Stephan Wilmes, Naotaka Tsutsumi, Aaron Claudius Trotman-Grant, Milica Gakovic, Sarah Andrews, Jason Gotlib, Spyros Darmanis, Martin Enge, Stephen Quake, Ian S. Hitchcock, Jacob Piehler, K. Christopher Garcia, Gerlinde Wernig
Summary: The study developed a series of surrogate protein ligands that can modulate TPO-R signaling, preserving HSC properties and inhibiting oncogenic signaling through TPO-R by tuning downstream responses.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Hematology
Fabian M. P. Kaiser, Iga Janowska, Roberta Menafra, Melanie de Gier, Jakov Korzhenevich, Ingrid Pico-Knijnenburg, Indu Khatri, Ansgar Schulz, Taco W. Kuijpers, Arjan C. Lankester, Lukas Konstantinidis, Miriam Erlacher, Susan Kloet, Pauline A. van Schouwenburg, Marta Rizzi, Mirjam van der Burg
Summary: IL-7 signaling plays a crucial role in human B lymphopoiesis by promoting the proliferation of early B-cell progenitors and guiding cell fate decisions. This discovery has important implications for the treatment strategies of severe combined immunodeficiency patients and provides insights into the role of IL-7R signaling in leukemogenesis.
Article
Dermatology
Koji Sugawara, Nora Zakany, Stephan Tiede, Talveen Purba, Matthew Harries, Daisuke Tsuruta, Tamas Biro, Ralf Paus
Summary: Research has shown that selective activation of the cannabinoid receptor-1 pathway significantly increases the number and proliferation of human epithelial stem cells in scalp hair follicles, while also promoting apoptosis in their differentiated progeny. This highlights the crucial role of CB1 signaling in the survival of adult human scalp hair follicle stem cells within their niche.
EXPERIMENTAL DERMATOLOGY
(2021)
Article
Developmental Biology
Ying Li, Can Li, Mengyao Liu, Shicheng Liu, Feng Liu, Lu Wang
Summary: This article investigates the role of RBP protein Csde1 in regulating HSPC generation during zebrafish early development. By modulating the activity of the Wnt/f3-catenin signaling pathway, Csde1 ensures the proper production of HSPCs.
Article
Cell Biology
Marla C. Glass, David R. Glass, John-Paul Oliveria, Berenice Mbiribindi, Carlos O. Esquivel, Sheri M. Krams, Sean C. Bendall, Olivia M. Martinez
Summary: Regulatory B cells (Bregs) secrete interleukin-10 (IL-10) to suppress immune responses, but there is no definitive immunophenotype to identify these B cells. Multiple functional subsets of B cells can produce IL-10, and there is no unique phenotype for IL-10(+) B cells. Furthermore, a significant portion of IL-10(+) B cells also express the pro-inflammatory cytokines IL-6 and tumor necrosis factor alpha (TNF-alpha). However, operationally tolerant liver transplant recipients have an enrichment of IL-10(+) but not TNF-alpha(+) or IL-6(+) B cells compared to those receiving immunosuppression. Therefore, IL-10-producing B cells in humans constitute an induced and transient state arising from various subsets of B cells, which may contribute to the maintenance of immune homeostasis.
Article
Hematology
Colin A. Hammond, Si Wei Wu, Fangwu Wang, Margarita E. MacAldaz, Connie J. Eaves
Summary: Human hematopoietic stem cells (HSCs) undergo functional and molecular changes throughout life, involving a switch from a rapidly cycling state to a quiescent state. The proliferation of these cells is growth factor-dependent, but how aging affects this regulation is not well understood. In this study, HSCs were isolated from individuals of different ages and their response to growth factor stimulation was measured. The results showed that aging is associated with a delayed proliferative response and altered cell cycle progression in HSCs. These findings reveal an age-related alteration in the mechanisms regulating the proliferation of human hematopoietic cells.
Article
Biochemistry & Molecular Biology
Rashmi Kumar, Candace C. C. Liu, Sean C. Bendall, Michael Angelo
Summary: This study introduces a synthesis method of a dendrimer-based polymer and its application in MIBI-TOF tissue imaging. By comparing the staining performance of antibodies conjugated with dendrimers or linear polymers in FFPE tissue, it was found that dendrimers and linear polymers have comparable avidities. Moreover, dendrimers have advantages such as less background staining and no off-target binding in neural tissue. Overall, this research provides a versatile framework for using third-generation dendrimer-conjugated antibodies with improved staining compared to conventional linear polymers.
Article
Oncology
Paul Munson, Juraj Adamik, Felix J. Hartmann, Patricia M. B. Favaro, Daniel Ho, Sean C. Bendall, Alexis J. Combes, Matthew F. Krummel, Karen Zhang, Robin K. Kelley, Lisa H. Butterfield
Summary: Hepatocellular cancer tumors express a-Fetoprotein (AFP), which inhibits dendritic cell differentiation and maturation, and blocks oxidative phosphorylation. Tumor-derived AFP increases glycolytic capacity and glucose dependence of dendritic cells, leading to increased glucose uptake and lactate secretion. Furthermore, AFP bound with polyunsaturated fatty acids (PUFAs) skews dendritic cell metabolism and promotes immune suppression.
Review
Immunology
YeEun Kim, William J. Greenleaf, Sean C. Bendall
Summary: Single-cell technologies have revealed the heterogeneity and complexity of the immune system. Systems biology approaches in immunology have utilized high-parameter, high-throughput data to analyze immune cell types. This approach has led to the discovery of new cell types and functions, especially in the field of human immunology. This review focuses on recent findings in lymphocyte biology enabled by systems approaches and discusses the challenges of handling high-dimensional datasets.
CURRENT OPINION IN IMMUNOLOGY
(2023)
Editorial Material
Immunology
Hadeesha Piyadasa, Michael Angelo, Sean C. Bendall
Summary: Capturing cell organization in the tumor microenvironment using spatial proteomics can provide insight into the disease. A pair of studies applying this to advanced lung and brain tumors identifies organizational immune hallmarks that are associated with patient outcomes.
Article
Multidisciplinary Sciences
Jolanda Sarno, Pablo Domizi, Yuxuan Liu, Milton Merchant, Christina Bligaard Pedersen, Dorra Jedoui, Astraea Jager, Garry P. Nolan, Giuseppe Gaipa, Sean C. Bendall, Felice-Alessio Bava, Kara L. Davis
Summary: Resistance to glucocorticoids (GC) in B-cell progenitor acute lymphoblastic leukemia (BCP-ALL) is driven by coordination between the glucocorticoid receptor pathway and B-cell developmental pathways. The interplay between B-cell development and glucocorticoid pathways is crucial for GC resistance in leukemic cells. Targeting the active signaling through the addition of dasatinib may represent a therapeutic approach to overcome GC resistance in BCP-ALL.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Makeda L. Robinson, David R. Glass, Veronica Duran, Olga Lucia Agudelo Rojas, Ana Maria Sanz, Monika Consuegra, Malaya Kumar Sahoo, Felix J. Hartmann, Marc Bosse, Rosa Margarita Gelvez, Nathalia Bueno, Benjamin A. Pinsky, Jose G. Montoya, Holden Maecker, Maria Isabel Estupinan Cardenas, Luis Angel Villar Centeno, Elsa Marina Rojas Garrido, Fernando Rosso, Sean C. Bendall, Shirit Einav
Summary: Approximately 5 million dengue virus-infected patients progress to severe dengue (SD) infection annually. This study reveals uncoordinated immune responses in SD patients and provides insights into SD pathogenesis in humans with potential implications for prediction and treatment.
Article
Multidisciplinary Sciences
Eloise Berson, Chandresh R. Gajera, Thanaphong Phongpreecha, Amalia Perna, Syed A. Bukhari, Martin Becker, Alan L. Chang, Davide De Francesco, Camilo Espinosa, Neal G. Ravindra, Nadia Postupna, Caitlin S. Latimer, Carol A. Shively, Thomas C. Register, Suzanne Craft, Kathleen S. Montine, Edward J. Fox, C. Dirk Keene, Sean C. Bendall, Nima Aghaeepour, Thomas J. Montine
Summary: Comparing brain structure across species and regions allows for important functional insights. In this study, a novel mass cytometry-based method called synaptometry by time of flight (SynTOF) was used to compare presynapse molecular abundance across three species and three brain regions. The results showed significant differences in presynaptic composition between human, macaque, and mouse samples, with a notable overlap between human and macaque in certain brain regions.
SCIENTIFIC REPORTS
(2023)
Article
Cell Biology
Mahil Rao, Meelad Amouzgar, James T. Harden, M. Gay Lapasaran, Amber Trickey, Brian Armstrong, Jonah Odim, Tracia Debnam, Carlos O. Esquivel, Sean C. Bendall, Olivia M. Martinez, Sheri M. Krams
Summary: Solid organ transplant is a life-saving therapy for children with end-stage organ diseases, but a significant proportion of recipients experience acute rejection. This study analyzed the immune composition of pediatric solid organ transplant recipients using high-dimensional mass cytometry, and found that the type of organ transplant strongly influences the post-transplant immune profile. Changes in the proportion of different T cell subpopulations are associated with graft health. These findings provide a basis for further understanding and developing new immunosuppressive agents.
CELL REPORTS MEDICINE
(2023)
Article
Multidisciplinary Sciences
Yunhao Bai, Bokai Zhu, John-Paul Oliveria, Bryan J. Cannon, Dorien Feyaerts, Marc Bosse, Kausalia Vijayaragavan, Noah F. Greenwald, Darci Phillips, Christian M. Schuerch, Samuel M. Naik, Edward A. Ganio, Brice Gaudilliere, Scott J. Rodig, Michael B. Miller, Michael Angelo, Sean C. Bendall, Xavier Rovira-Clave, Garry P. Nolan, Sizun Jiang
Summary: Emerging high-plex imaging technologies are limited in resolving subcellular biomolecular features. Here, the authors propose a spatial histopathology tool that allows for high-plex protein staining and physical expansion, while retaining the lateral tissue expansion.
NATURE COMMUNICATIONS
(2023)
Meeting Abstract
Pediatrics
Mahil Rao, Meelad Amouzgar, James T. Harden, Mary G. Lapasaran, Amber Trickey, Brian Armstrong, Jonah Odim, Tracia Debnam, Carlos O. Esquivel, Sean C. Bendall, Olivia M. Martinez, Sheri M. Krams
PEDIATRIC TRANSPLANTATION
(2023)
Meeting Abstract
Rheumatology
Sven Wischnewski, Chiseko Ikenaga, Anna Kocharyan, Thomas Thaewel, Amel Zulji, Hans-Werner Rausch, Celia Lerma Martin, Dunja Mrdjen, David Brenner, Lukas Bunse, Chin Leng Tan, Leonie Thomas, Michael Kutza, Tim Trobisch, Corinna Preusse, Nicole Reed, Harald D. Von Pein, Angela Rosenbohm, Albert Ludolph, Ahmet Hoke, Michael Platten, Sean C. Bendall, Jochen H. Weishaupt, Clemens J. Sommer, Werner Stenzel, Thomas E. Lloyd, Lucas Schirmer
CLINICAL AND EXPERIMENTAL RHEUMATOLOGY
(2023)
Article
Multidisciplinary Sciences
Juraj Adamik, Paul V. Munson, Deena M. Maurer, Felix J. Hartmann, Sean C. Bendall, Rafael J. Arguello, Lisa H. Butterfield
Summary: This study analyzed the transcriptomic and immune-metabolic profiles of dendritic cells (DCs) from patients with late-stage melanoma. The results suggest that the metabolic profile of DCs is associated with the immunostimulatory potential of cancer vaccines.
NATURE COMMUNICATIONS
(2023)
Meeting Abstract
Hematology
Patricia Favaro, David Glass, Luciene Borges, Reema Baskar, Warren Reynolds, Daniel Ho, Trevor Bruce, Dmitry Tebaykin, Albert Tsai, Ilya Shestopalov, Sean Bendall
EXPERIMENTAL HEMATOLOGY
(2023)