@article{kociemba_jørgensen_tadic_harris_sideri_chan_ibrahim_ünal_skehel_shahrezaei_et al._2023, title={Multi-signal regulation of the GSK-3β homolog Rim11 governs meiosis entry in yeast}, url={http://dx.doi.org/10.1101/2023.09.21.558844}, DOI={10.1101/2023.09.21.558844}, abstractNote={Abstract}, author={Kociemba, Johanna and Jørgensen, Andreas Christ Sølvsten and Tadic, Nika and Harris, Anthony and Sideri, Theodora and Chan, Wei Yee and Ibrahim, Fairouz and Ünal, Elçin and Skehel, Mark and Shahrezaei, Vahid and et al.}, year={2023}, month={Sep} }
 @article{feng_arguello-miranda_qian_wang_2022, title={Cdc14 plans autophagy for meiotic cell divisions}, volume={18}, ISSN={["1554-8635"]}, url={https://doi.org/10.1080/15548627.2022.2080956}, DOI={10.1080/15548627.2022.2080956}, abstractNote={ABSTRACT The role of meiotic proteasome-mediated degradation has been extensively studied. At the same time, macroautophagy/autophagy only emerged recently as an essential regulator for meiosis progression. Our recent publication showed that autophagy in meiotic cells exhibits a temporal pattern distinct from that in quiescent cells or mitotic cells under prolonged starvation. Importantly, autophagic activity oscillates during meiotic cell divisions, i.e., meiosis I and meiosis II, which can accelerate meiotic progression and increase sporulation efficiency. Our in vitro and in vivo assays revealed that the conserved phosphatase Cdc14 stimulates autophagy initiation during meiotic divisions, specifically in anaphase I and II, when a subpopulation of active Cdc14 relocates to the cytosol and interacts with phagophore assembly sites (PAS) triggering the dephosphorylation of Atg13 to stimulate Atg1 kinase activity and autophagy. Together, our findings reveal a mechanism for the coordination of autophagy activity in the context of meiosis progression.}, number={6}, journal={AUTOPHAGY}, publisher={Informa UK Limited}, author={Feng, Wenzhi and Arguello-Miranda, Orlando and Qian, Suhong and Wang, Fei}, year={2022}, month={May} }
 @article{feng_arguello-miranda_qian_wang_2022, title={Cdc14 spatiotemporally dephosphorylates Atg13 to activate autophagy during meiotic divisions}, volume={221}, ISSN={["1540-8140"]}, url={https://doi.org/10.1083/jcb.202107151}, DOI={10.1083/jcb.202107151}, abstractNote={Autophagy is a conserved eukaryotic lysosomal degradation pathway that responds to environmental and cellular cues. Autophagy is essential for the meiotic exit and sporulation in budding yeast, but the underlying molecular mechanisms remain unknown. Here, we show that autophagy is maintained during meiosis and stimulated in anaphase I and II. Cells with higher levels of autophagy complete meiosis faster, and genetically enhanced autophagy increases meiotic kinetics and sporulation efficiency. Strikingly, our data reveal that the conserved phosphatase Cdc14 regulates meiosis-specific autophagy. Cdc14 is activated in anaphase I and II, accompanying its subcellular relocation from the nucleolus to the cytoplasm, where it dephosphorylates Atg13 to stimulate Atg1 kinase activity and thus autophagy. Together, our findings reveal a meiosis-tailored mechanism that spatiotemporally controls meiotic autophagy activity to ensure meiosis progression, exit, and sporulation.}, number={5}, journal={JOURNAL OF CELL BIOLOGY}, author={Feng, Wenzhi and Arguello-Miranda, Orlando and Qian, Suhong and Wang, Fei}, year={2022}, month={Mar} }
 @article{arguello-miranda_marchand_kennedy_russo_noh_2022, title={Cell cycle-independent integration of stress signals by Xbp1 promotes Non-G1/G0 quiescence entry}, volume={221}, ISSN={["1540-8140"]}, url={https://doi.org/10.1083/jcb.202103171}, DOI={10.1083/jcb.202103171}, abstractNote={Cellular quiescence is a nonproliferative state required for cell survival under stress and during development. In most quiescent cells, proliferation is stopped in a reversible state of low Cdk1 kinase activity; in many organisms, however, quiescent states with high-Cdk1 activity can also be established through still uncharacterized stress or developmental mechanisms. Here, we used a microfluidics approach coupled to phenotypic classification by machine learning to identify stress pathways associated with starvation-triggered high-Cdk1 quiescent states in Saccharomyces cerevisiae. We found that low- and high-Cdk1 quiescent states shared a core of stress-associated processes, such as autophagy, protein aggregation, and mitochondrial up-regulation, but differed in the nuclear accumulation of the stress transcription factors Xbp1, Gln3, and Sfp1. The decision between low- or high-Cdk1 quiescence was controlled by cell cycle–independent accumulation of Xbp1, which acted as a time-delayed integrator of the duration of stress stimuli. Our results show how cell cycle–independent stress-activated factors promote cellular quiescence outside G1/G0.}, number={1}, journal={JOURNAL OF CELL BIOLOGY}, publisher={Rockefeller University Press}, author={Arguello-Miranda, Orlando and Marchand, Ashley J. and Kennedy, Taylor and Russo, Marielle A. X. and Noh, Jungsik}, year={2022}, month={Jan} }
 @article{acuña-rodriguez_mena-vega_argüello-miranda_2022, title={Live-cell fluorescence spectral imaging as a data science challenge}, url={https://doi.org/10.1007/s12551-022-00941-x}, DOI={10.1007/s12551-022-00941-x}, abstractNote={Live-cell fluorescence spectral imaging is an evolving modality of microscopy that uses specific properties of fluorophores, such as excitation or emission spectra, to detect multiple molecules and structures in intact cells. The main challenge of analyzing live-cell fluorescence spectral imaging data is the precise quantification of fluorescent molecules despite the weak signals and high noise found when imaging living cells under non-phototoxic conditions. Beyond the optimization of fluorophores and microscopy setups, quantifying multiple fluorophores requires algorithms that separate or unmix the contributions of the numerous fluorescent signals recorded at the single pixel level. This review aims to provide both the experimental scientist and the data analyst with a straightforward description of the evolution of spectral unmixing algorithms for fluorescence live-cell imaging. We show how the initial systems of linear equations used to determine the concentration of fluorophores in a pixel progressively evolved into matrix factorization, clustering, and deep learning approaches. We outline potential future trends on combining fluorescence spectral imaging with label-free detection methods, fluorescence lifetime imaging, and deep learning image analysis.}, journal={Biophysical Reviews}, author={Acuña-Rodriguez, Jessy Pamela and Mena-Vega, Jean Paul and Argüello-Miranda, Orlando}, year={2022}, month={Apr} }
 @article{functional interrelationships between carbohydrate and lipid storage, and mitochondrial activity during sporulation in
            saccharomyces cerevisiae_2020, url={http://dx.doi.org/10.1002/yea.3460}, DOI={10.1002/yea.3460}, abstractNote={Abstract}, journal={Yeast}, year={2020}, month={Jan} }
 @article{bolaños-villegas_argüello-miranda_2019, title={Meiosis research in orphan and non-orphan tropical crops}, volume={10}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85064210434&partnerID=MN8TOARS}, DOI={10.3389/fpls.2019.00074}, abstractNote={Plant breeding is directly linked to the development of crops that can effectively adapt to challenging conditions such as soil nutrient depletion, water pollution, drought, and anthropogenic climate change. These conditions are extremely relevant in developing countries already burdened with population growth and unchecked urban expansion, especially in the tropical global southern hemisphere. Engineering new crops thus has potential to enhance food security, prevent hunger, and spur sustainable agricultural growth. A major tool for the improvement of plant varieties in this context could be the manipulation of homologous recombination and genome haploidization during meiosis. The isolation or the design of mutations in key meiotic genes may facilitate DNA recombination and transmission of important genes quickly and efficiently. Genome haploidization through centromeric histone mutants could be an option to create new crosses rapidly. This review covers technical approaches to engineer key meiotic genes in tropical crops as a blueprint for future work and examples of tropical crops in which such strategies could be applied are given.}, journal={Frontiers in Plant Science}, author={Bolaños-Villegas, P. and Argüello-Miranda, O.}, year={2019}, pages={1–7} }
 @article{argüello-miranda_liu_wood_kositangool_doncic_2018, title={Integration of Multiple Metabolic Signals Determines Cell Fate Prior to Commitment}, volume={71}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85053828258&partnerID=MN8TOARS}, DOI={10.1016/j.molcel.2018.07.041}, abstractNote={Cell-fate decisions are central to the survival and development of both uni- and multicellular organisms. It remains unclear when and to what degree cells can decide on future fates prior to commitment. This uncertainty stems from experimental and theoretical limitations in measuring and integrating multiple signals at the single-cell level during a decision process. Here, we combine six-color live-cell imaging with the Bayesian method of statistical evidence to study the meiosis/quiescence decision in budding yeast. Integration of multiple upstream metabolic signals predicts individual cell fates with high probability well before commitment. Cells “decide” their fates before birth, well before the activation of pathways characteristic of downstream cell fates. This decision, which remains stable through several cell cycles, occurs when multiple metabolic parameters simultaneously cross cell-fate-specific thresholds. Taken together, our results show that cells can decide their future fates long before commitment mechanisms are activated.}, number={5}, journal={Molecular Cell}, author={Argüello-Miranda, O. and Liu, Y. and Wood, N.E. and Kositangool, P. and Doncic, A.}, year={2018}, pages={733–744.e11} }
 @article{argüello-miranda_zagoriy_mengoli_rojas_jonak_oz_graf_zachariae_2017, title={Casein Kinase 1 Coordinates Cohesin Cleavage, Gametogenesis, and Exit from M Phase in Meiosis II}, volume={40}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85008643933&partnerID=MN8TOARS}, DOI={10.1016/j.devcel.2016.11.021}, abstractNote={Meiosis consists of DNA replication followed by two consecutive nuclear divisions and gametogenesis or spore formation. While meiosis I has been studied extensively, less is known about the regulation of meiosis II. Here we show that Hrr25, the conserved casein kinase 1δ of budding yeast, links three mutually independent key processes of meiosis II. First, Hrr25 induces nuclear division by priming centromeric cohesin for cleavage by separase. Hrr25 simultaneously phosphorylates Rec8, the cleavable subunit of cohesin, and removes from centromeres the cohesin protector composed of shugoshin and the phosphatase PP2A. Second, Hrr25 initiates the sporulation program by inducing the synthesis of membranes that engulf the emerging nuclei at anaphase II. Third, Hrr25 mediates exit from meiosis II by activating pathways that trigger the destruction of M-phase-promoting kinases. Thus, Hrr25 synchronizes formation of the single-copy genome with gamete differentiation and termination of meiosis.}, number={1}, journal={Developmental Cell}, author={Argüello-Miranda, O. and Zagoriy, I. and Mengoli, V. and Rojas, J. and Jonak, K. and Oz, T. and Graf, P. and Zachariae, W.}, year={2017}, pages={37–52} }
 @article{jakobsson_argüello-miranda_chiu_fazal_kruczek_nunez-corrales_pandit_pritchet_2017, title={Towards a Unified Understanding of Lithium Action in Basic Biology and its Significance for Applied Biology}, volume={250}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85033453121&partnerID=MN8TOARS}, DOI={10.1007/s00232-017-9998-2}, abstractNote={Lithium has literally been everywhere forever, since it is one of the three elements created in the Big Bang. Lithium concentration in rocks, soil, and fresh water is highly variable from place to place, and has varied widely in specific regions over evolutionary and geologic time. The biological effects of lithium are many and varied. Based on experiments in which animals are deprived of lithium, lithium is an essential nutrient. At the other extreme, at lithium ingestion sufficient to raise blood concentration significantly over 1 mM/, lithium is acutely toxic. There is no consensus regarding optimum levels of lithium intake for populations or individuals—with the single exception that lithium is a generally accepted first-line therapy for bipolar disorder, and specific dosage guidelines for sufferers of that condition are generally agreed on. Epidemiological evidence correlating various markers of social dysfunction and disease vs. lithium level in drinking water suggest benefits of moderately elevated lithium compared to average levels of lithium intake. In contrast to other biologically significant ions, lithium is unusual in not having its concentration in fluids of multicellular animals closely regulated. For hydrogen ions, sodium ions, potassium ions, calcium ions, chloride ions, and magnesium ions, blood and extracellular fluid concentrations are closely and necessarily regulated by systems of highly selective channels, and primary and secondary active transporters. Lithium, while having strong biological activity, is tolerated over body fluid concentrations ranging over many orders of magnitude. The lack of biological regulation of lithium appears due to lack of lithium-specific binding sites and selectivity filters. Rather lithium exerts its myriad physiological and biochemical effects by competing for macromolecular sites that are relatively specific for other cations, most especially for sodium and magnesium. This review will consider what is known about the nature of this competition and suggest using and extending this knowledge towards the goal of a unified understanding of lithium in biology and the application of that understanding in medicine and nutrition.}, number={6}, journal={Journal of Membrane Biology}, author={Jakobsson, E. and Argüello-Miranda, O. and Chiu, S.-W. and Fazal, Z. and Kruczek, J. and Nunez-Corrales, S. and Pandit, S. and Pritchet, L.}, year={2017}, pages={587–604} }
 @article{okaz_argüello-miranda_bogdanova_vinod_lipp_markova_zagoriy_novak_zachariae_2012, title={Meiotic prophase requires proteolysis of m phase regulators mediated by the meiosis-specific APC/CAma1}, volume={151}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84868033744&partnerID=MN8TOARS}, DOI={10.1016/j.cell.2012.08.044}, abstractNote={Whereas proliferating cells enter M phase shortly after DNA replication, the first M phase of meiosis is preceded by an extended prophase in which homologous chromosomes undergo recombination. Exit from prophase I is controlled by the recombination checkpoint (RC), which, in yeast, represses the meiosis-specific transcription factor Ndt80 required for the expression of B-type cyclins and other M phase regulators. We show that an extended prophase I additionally requires the suppression of latent, mitotic cell-cycle controls by the anaphase-promoting complex (APC/C) and its meiosis-specific activator Ama1, which trigger the degradation of M phase regulators and Ndd1, a subunit of a mitotic transcription factor. ama1Δ mutants exit from prophase I prematurely and independently of the RC, which results in recombination defects and chromosome missegregation. Thus, control of prophase I by meiotic mechanisms depends on the suppression of the alternative, mitotic mechanisms by a meiosis-specific form of the APC/C.}, number={3}, journal={Cell}, author={Okaz, E. and Argüello-Miranda, O. and Bogdanova, A. and Vinod, P.K. and Lipp, J.J. and Markova, Z. and Zagoriy, I. and Novak, B. and Zachariae, W.}, year={2012}, pages={603–618} }
 @article{argüello-miranda_sáenz-arce_2008, title={Interchromatidal central ridge and transversal symmetry in early metaphasic human chromosome one}, volume={21}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-44949128921&partnerID=MN8TOARS}, DOI={10.1002/jmr.884}, abstractNote={Abstract}, number={3}, journal={Journal of Molecular Recognition}, author={Argüello-Miranda, O. and Sáenz-Arce, G.}, year={2008}, pages={184–189} }