Article
Oncology
Rossana Maffei, Stefania Fiorcari, Stefania Benatti, Claudio Giacinto Atene, Silvia Martinelli, Patrizia Zucchini, Leonardo Potenza, Mario Luppi, Roberto Marasca
Summary: Our study revealed that IRF4 plays a role in regulating BCR signaling in CLL cells, with high levels of IRF4 attenuating the signaling cascade and low levels enhancing it. Additionally, IRF4 was found to negatively regulate the expression of SYK and IKAROS, key proteins in the BCR signaling pathway. Manipulation of IRF4 and related proteins could provide potential therapeutic targets in CLL treatment.
Article
Oncology
Christine Wolf, Carsten Maus, Michael R. O. Persicke, Katharina Filarsky, Eugen Tausch, Christof Schneider, Hartmut Dohner, Stephan Stilgenbauer, Peter Lichter, Thomas Hofer, Daniel Mertens
Summary: BCR signaling plays a central role in the pathomechanism of CLL and inhibiting the BCR signaling pathway can improve treatment options. Phosphorylation levels were higher in malignant cells and IGHV unmutated CLL cells. Inhibition of phosphatases led to increased phosphorylation levels in CLL cells with mutated IGHV. The network topology remained stable between malignant and nonmalignant cells.
INTERNATIONAL JOURNAL OF CANCER
(2022)
Article
Oncology
Shady Adnan-Awad, Daehong Kim, Helena Hohtari, Komal Kumar Javarappa, Tania Brandstoetter, Isabella Mayer, Swapnil Potdar, Caroline A. Heckman, Soili Kytola, Kimmo Porkka, Eszter Doma, Veronika Sexl, Matti Kankainen, Satu Mustjoki
Summary: The oncogenic protein Bcr-Abl has two major isoforms, p190(Bcr-Abl) and p210(Bcr-Abl), with distinct characteristics and responses to treatment. Through comprehensive analysis including next generation sequencing and drug sensitivity testing, specific signaling pathways and potential targeted therapies for p190(Bcr-Abl) in CML have been identified. These findings provide novel insights into the mechanisms underlying p190(Bcr-Abl) CML and offer promising therapeutic targets for this high-risk patient group.
Article
Hematology
Delphine Tardivon, Mateusz Antoszewski, Nadine Zangger, Marianne Nkosi, Jessica Sordet-Dessimoz, Rudi Hendriks, Ute Koch, Freddy Radtke
Summary: NOTCH1 gain-of-function mutations are common in B-cell chronic lymphocytic leukemia, and play a role in disease progression and chemotherapy resistance. In an in vivo mouse model of CLL, activation of Notch signaling facilitated disease initiation and promoted CLL cell proliferation and disease progression, while inhibition of Notch signaling delayed disease induction.
Article
Immunology
Gema Perez-Chacon, Juan M. Zapata
Summary: Chronic lymphocytic leukemia (CLL)/Small lymphocytic lymphoma (SLL) is a heterogeneous disease with at least two subtypes, characterized by specific IGHV gene subgroup usage and the existence of stereotyped B-cell receptors. The study on Traf2DN/BCL2-tg(+/+) mice shows remarkable similarities with human CLL/SLL, highlighting the importance of antigen exposure in malignant transformation and clone expansion.
FRONTIERS IN IMMUNOLOGY
(2021)
Review
Oncology
Billy Michael Chelliah Jebaraj, Stephan Stilgenbauer
Summary: Telomeres play a crucial role in chronic lymphocytic leukemia (CLL), with their dysfunction shaping the disease progression. Members of the shelterin complex and TERT activation are closely associated with CLL cell survival and proliferation.
FRONTIERS IN ONCOLOGY
(2021)
Article
Oncology
Junyan Lu, Ester Cannizzaro, Fabienne Meier-Abt, Sebastian Scheinost, Peter-Martin Bruch, Holly A. R. Giles, Almut Lutge, Jennifer Huellein, Lena Wagner, Brian Giacopelli, Ferran Nadeu, Julio Delgado, Elias Campo, Maurizio Mangolini, Ingo Ringshausen, Martin Bottcher, Dimitrios Mougiakakos, Andrea Jacobs, Bernd Bodenmiller, Sascha Dietrich, Christopher C. Oakes, Thorsten Zenz, Wolfgang Huber
Summary: Huber and colleagues identified a proliferative drive axis involving mTOR, MYC, and OXPHOS metabolic activity in CLL, which is associated with disease heterogeneity and outcome. Their multi-omic analysis revealed a biological axis of heterogeneity strongly linked to clinical behavior and orthogonal to known biomarkers. The CLL proliferative drive axis was validated in multiple cohorts and is a key determinant of disease outcome.
Review
Pharmacology & Pharmacy
Gustavo P. Amarante-Mendes, Aamir Rana, Tarcila Santos Datoguia, Nelson Hamerschlak, Gabriela Brumatti
Summary: The constitutively active BCR-ABL1 tyrosine kinase plays a role in leukemia and initiates a complex signaling transduction cascade. Tyrosine kinase inhibitors have revolutionized the treatment of CML, but complete cure is not achieved. Other mechanisms exist in the later stages of the disease.
Article
Medicine, General & Internal
Andrea Nicola Mazzarello, Brisejda Koroveshi, Daniela Guardo, Lorella Lanza, Fabio Ghiotto, Silvia Bruno, Enrico Cappelli
Summary: Recently, cases of fortuitous discovery of Chronic Lymphocytic Leukemia (CLL) during hospitalization for COVID-19 have been reported. The unexpected lymphocytosis during COVID-19 infection is in contrast with the commonly observed lymphopenia in non-CLL individuals. Further investigations are needed to understand the mechanisms and potential implications of this phenomenon on CLL patients.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Hematology
Supriya Chakraborty, Claudio Martines, Fabiola Porro, Ilaria Fortunati, Alice Bonato, Marija Dimishkovska, Silvano Piazza, Brijesh S. Yadav, Idanna Innocenti, Rosa Fazio, Tiziana Vaisitti, Silvia Deaglio, Alberto Zamo, Aleksandar J. Dimovski, Luca Laurenti, Dimitar G. Efremov
Summary: BCR signals play a direct role in driving CLL cell proliferation by inducing both positive and negative regulators of the cell cycle. Genetic lesions that downregulate cell-cycle inhibitors like CDKN1A, CDKN2A, and CDKN2B, as well as TP53, lead to more aggressive disease and spontaneous proliferation. Furthermore, inactivating lesions in CDKN2A, CDKN2B, and TP53 frequently co-occur in Richter syndrome, and BCR stimulation with such lesions can induce proliferation.
Article
Oncology
P. Martijn Kolijn, Alice F. Muggen, Viktor Ljungstrom, Andreas Agathangelidis, Ingrid L. M. Wolvers-Tettero, H. Berna Beverloo, Karol Pal, Paul J. Hengeveld, Nikos Darzentas, Rudi W. Hendriks, Jacques J. M. van Dongen, Richard Rosenquist, Anton W. Langerak
Summary: In the onset and evolution of chronic lymphocytic leukemia (CLL), similarities in immunogenetic characteristics and genetic aberrations suggest shared underlying mechanisms in familial CLL development within each family.
FRONTIERS IN ONCOLOGY
(2021)
Article
Multidisciplinary Sciences
Andres Lopez-Cortes, Estefania Abarca, Leonardo Silva, Erick Velastegui, Ariana Leon-Sosa, Germania Karolys, Francisco Cabrera, Andres Caicedo
Summary: This study identified 21 wound healing proteins strongly linked with solid tumors, which are associated with eight of the ten described cancer hallmarks, especially immune avoidance. The results suggest that common proteins in wound healing and cancer play a role in modifying the microenvironment of solid tissues and regulating the immune system.
SCIENTIFIC REPORTS
(2021)
Article
Biochemistry & Molecular Biology
Vidhi Malik, Navaneethan Radhakrishnan, Sunil C. Kaul, Renu Wadhwa, Durai Sundar
Summary: The study suggests that Withaferin-A and Withanone from Ashwagandha have potential as natural drugs for the treatment of Chronic Myeloid Leukemia. These compounds interact with the protein kinase ABL, and inhibition of ABL may contribute to their anticancer activity.
Article
Oncology
Cedric Schleiss, Raphael Carapito, Luc-Matthieu Fornecker, Leslie Muller, Nicodeme Paul, Ouria Tahar, Angelique Pichot, Manuela Tavian, Alina Nicolae, Laurent Miguet, Laurent Mauvieux, Raoul Herbrecht, Sarah Cianferani, Jean-Noel Freund, Christine Carapito, Myriam Maumy-Bertrand, Seiamak Bahram, Frederic Bertrand, Laurent Vallat
Summary: The study reveals a proliferative genetic program activated by BCR in primary leukemic cells, consisting of 430 genes and 374 proteins. Mathematical modeling highlights a transcriptional network associated with cell proliferation.
Article
Immunology
Yamit Shorer Arbel, Yotam Bronstein, Tali Dadosh, Talia Kamdjou, Shlomo Tsuriel, Mika Shapiro, Ben-Zion Katz, Yair Herishanu
Summary: This study reveals significant differences in the basal composition, biochemical status, and spatial organization of B-cell receptors (BcR) in different immunogenetic subtypes of chronic lymphocytic leukemia (CLL), which are correlated with their clinical behavior. Cells expressing different BcR isotypes show distinct patterns of expression and signaling, suggesting potential differences in disease pathology and progression.
FRONTIERS IN IMMUNOLOGY
(2022)
Article
Oncology
Erlene K. Seymour, Husain Yar Khan, Yiwei Li, Mahmoud Chaker, Irfana Muqbil, Amro Aboukameel, Radhakrishanan Ramchandren, Christiane Houde, Golbon Sterbis, Jay Yang, Divaya Bhutani, Silvana Pregja, Kathy Reichel, Amy Huddlestun, Colleen Neveux, Kelly Corona, Yosef Landesman, Jatin Shah, Michael Kauffman, Sharon Shacham, Ramzi M. Mohammad, Asfar S. Azmi, Jeffrey A. Zonder
Summary: The study demonstrated that SINE compounds enhance the activity of CHOP in non-Hodgkin lymphoma both in vitro and in vivo. Selinexor in combination with R-CHOP showed good tolerability and promising efficacy in patients with NHL.
CLINICAL CANCER RESEARCH
(2021)
Article
Hematology
Lindsey E. Roeker, Toby A. Eyre, Meghan C. Thompson, Nicole Lamanna, Alexander R. Coltoff, Matthew S. Davids, Peter O. Baker, Lori Leslie, Kerry A. Rogers, John N. Allan, Raul Cordoba, Alberto Lopez-Garcia, Darko Antic, John M. Pagel, Nicolas Martinez-Calle, Jose Antonio Garcia-Marco, Jose-Angel Hernandez-Rivas, Fatima Miras, Catherine C. Coombs, Anders Osterborg, Lotta Hansson, Amanda N. Seddon, Javier Lopez Jimenez, Matthew R. Wilson, Dima El-Sharkawi, Daniel Wojenski, Shuo Ma, Talha Munir, Susana Valenciano, Erlene Seymour, Paul M. Barr, Jeffrey Pu, Piers E. M. Patten, Guilherme F. Perini, Scott F. Huntington, Helen Parry, Suchitra Sundaram, Alan Skarbnik, Manali Kamdar, Ryan Jacobs, Harriet Walter, Renata Walewska, Angus Broom, Sonia Lebowitz, Krista M. Isaac, Craig A. Portell, Inhye E. Ahn, Chaitra S. Ujjani, Mazyar Shadman, Sigrid Skanland, Elise A. Chong, Anthony R. Mato
Article
Biochemistry & Molecular Biology
Harikesh S. Wong, Kyemyung Park, Anita Gola, Antonio P. Baptista, Christine H. Miller, Deeksha Deep, Meng Lou, Lisa F. Boyd, Alexander Y. Rudensky, Peter A. Savage, Gregoire Altan-Bonnet, John S. Tsang, Ronald N. Germain
Summary: The study reveals that self-activated T cells in lymph nodes produce IL-2, enhancing local Treg proliferation and inhibitory function, forming a negative feedback loop. These micro-domain constraints result in transient clonal expansion followed by rapid death of self-activated T cells, maintaining immune homeostasis.
Article
Oncology
Erlene K. Seymour, Lucius Daniel, Eva Pointer, Jordan Julian, Stephen T. Smith, Charles A. Schiffer
Summary: This study evaluates the impact of the Karmanos Specialty Pharmacy's (KSP) automated financial assistance (FA) application process on reducing drug costs for cancer patients. The results show that the program successfully reduces patient costs, with 27% of patients requiring additional FA. By utilizing extra pharmacy assistants to obtain FA, patient costs are significantly lowered.
JCO ONCOLOGY PRACTICE
(2022)
Article
Biochemical Research Methods
Peng Jiang, Yu Zhang, Beibei Ru, Yuan Yang, Trang Vu, Rohit Paul, Amer Mirza, Gregoire Altan-Bonnet, Lingrui Liu, Eytan Ruppin, Lalage Wakefield, Kai W. Wucherpfennig
Summary: CytoSig is an interactive database and model for predicting cytokine signaling activity at bulk and single-cell levels. By analyzing 20,591 transcriptome profiles, it enables reliable prediction of signaling activities in different cell populations and reveals previously unknown roles of many cytokines.
Article
Biochemistry & Molecular Biology
Zeguang Wu, Soo Park, Colleen M. Lau, Yi Zhong, Sam Sheppard, Joseph C. Sun, Jayajit Das, Gregoire Altan-Bonnet, Katharine C. Hsu
Summary: Interactions between MHC on target cells and NK cell inhibitory receptors determine the abundance of SHP-1 in NK cells, with responsive NK cell populations having low SHP-1 levels. Reduction of SHP-1 abundance enhances NK cell responsiveness, suggesting it may be a biomarker for enhancing NK cell tumoricidal capacity.
Article
Hematology
Haneen Shalabi, Haiying Qin, Angela Su, Bonnie Yates, Pamela L. Wolters, Seth M. Steinberg, John A. Ligon, Sara Silbert, Kniya DeDe, Mehdi Benzaoui, Sophia Goldberg, Sooraj Achar, Dina Schneider, Shilpa A. Shahani, Lauren Little, Toni Foley, John C. Molina, Sandhya Panch, Crystal L. Mackall, Daniel W. Lee, Christopher D. Chien, Marie Pouzolles, Mark Ahlman, Constance M. Yuan, Hao-Wei Wang, Yanyu Wang, Jon Inglefield, Mary Anne Toledo-Tamula, Staci Martin, Steven L. Highfill, Gregoire Altan-Bonnet, David Stroncek, Terry J. Fry, Naomi Taylor, Nirali N. Shah
Summary: This study investigated the CAR T-cell therapy for B-cell malignancies and found that CD19.22.BB zeta showed good safety and efficacy. Further optimization of combinatorial antigen targeting can overcome certain limitations.
Letter
Biophysics
Harsh Shah, Seongho Kim, Scott Klimecki, Karl Charlson, Joseph Uberti, Charles A. Schiffer, Mark A. Fiala, Erlene Seymour
BONE MARROW TRANSPLANTATION
(2022)
Article
Multidisciplinary Sciences
Sooraj R. Achar, Francois X. P. Bourassa, Thomas J. Rademaker, Angela Lee, Taisuke Kondo, Emanuel Salazar-Cavazos, John S. Davies, Naomi Taylor, Paul Francois, Gregoire Altan-Bonnet
Summary: This study combines machine learning and a robotic platform to investigate the activation of CD8(+) T cells. By experimentally measuring and theoretically modeling high-dimensional cytokine dynamics, the researchers found that these dynamics can be compressed onto a low-dimensional latent space through antigen encoding. The study successfully models and reconstructs patterns of T cell immune activation, and identifies six classes of antigens that elicit distinct T cell responses.
Article
Biochemical Research Methods
James Anibal, Alexandre G. Day, Erol Bahadiroglu, Liam O'Neil, Long Phan, Alec Peltekian, Amir Erez, Mariana Kaplan, Gregoire Altan-Bonnet, Pankaj Mehta
Summary: Data clustering plays a significant role in biomedical sciences, especially in the analysis of single-cell data. The new hierarchical density clustering algorithm (HAL-x) introduced in this report improves computational efficiency and achieves high accuracy in single cell classification. This algorithm is scalable, tunable, and rapid, providing a valuable tool for analyzing vast biological datasets.
PLOS COMPUTATIONAL BIOLOGY
(2022)
Letter
Hematology
Gaurav Goyal, Tylan Magnusson, Xiaoliang Wang, James Roose, Mayur Narkhede, Erlene Seymour
Editorial Material
Multidisciplinary Sciences
Emanuel Salazar-Cavazos, Gregoire Altan-Bonnet
Article
Hematology
Katherine E. Masih, Rebecca A. Gardner, Hsien-Chao Chou, Abdalla Abdelmaksoud, Young K. Song, Luca Mariani, Vineela Gangalapudi, Berkley E. Gryder, Ashley L. Wilson, Serifat O. Adebola, Benjamin Z. Stanton, Chaoyu Wang, David Milewski, Yong Yean Kim, Meijie Tian, Adam Tai -Chi Cheuk, Xinyu Wen, Yue Zhang, Gregoire Altan-Bonnet, Michael C. Kelly, Jun S. Wei, Martha L. Bulyk, Michael C. Jensen, Rimas J. Orentas, Javed Khan
Article
Medicine, General & Internal
Gaurav Goyal, Krystal W. Lau, Xiaoliang Wang, Amy J. Davidoff, Scott F. Huntington, Omer Jamy, Gregory Calip, Harsh Shah, Deborah M. Stephens, Rebecca Miksad, Ravi B. Parikh, Samuel Takvorian, Natalia Neparidze, Erlene K. Seymour
Summary: This study examined the impact of the COVID-19 pandemic on in-person visits and telemedicine use among patients with hematologic neoplasms. The study found that in the early months of the pandemic, in-person visit rates significantly decreased for patients receiving oral therapy and outpatient infusions, but later returned to near projected rates. Telemedicine use was highest in the early months and declined, but remained persistent in the later half of 2020.
Article
Immunology
Elisa E. Sanchez, Maria Tello-Lafoz, Aixuan J. Guo, Miguel de Jesus, Yassmin A. Elbanna, Benjamin Y. Winer, Sadna Budhu, Eric Chan, Eric Rosiek, Taisuke Kondo, Justyn DuSold, Naomi Taylor, Gregoire Altan-Bonnet, Michael F. Olson, Morgan Huse
Summary: Cytotoxic T lymphocytes (CTLs) fight intracellular pathogens and cancer by identifying and destroying infected or transformed target cells. CTLs form a specialized cytotoxic immune synapse (IS) with a target and release toxic proteins to induce target cell death. After the IS dissolves, CTLs can search for other targets and phagocytes can clear the dead cells.