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Cellular and Molecular Life Sciences: CMLS

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https://www.readbyqxmd.com/read/29043393/characterization-of-a-set-of-abdominal-neuroendocrine-cells-that-regulate-stress-physiology-using-colocalized-diuretic-peptides-in-drosophila
#1
Meet Zandawala, Richard Marley, Shireen A Davies, Dick R Nässel
Multiple neuropeptides are known to regulate water and ion balance in Drosophila melanogaster. Several of these peptides also have other functions in physiology and behavior. Examples are corticotropin-releasing factor-like diuretic hormone (diuretic hormone 44; DH44) and leucokinin (LK), both of which induce fluid secretion by Malpighian tubules (MTs), but also regulate stress responses, feeding, circadian activity and other behaviors. Here, we investigated the functional relations between the LK and DH44 signaling systems...
October 17, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29032503/cd4-and-cd8-t-lymphocyte-interplay-in-controlling-tumor-growth
#2
REVIEW
Dmitrij Ostroumov, Nora Fekete-Drimusz, Michael Saborowski, Florian Kühnel, Norman Woller
The outstanding clinical success of immune checkpoint blockade has revived the interest in underlying mechanisms of the immune system that are capable of eliminating tumors even in advanced stages. In this scenario, CD4 and CD8 T cell responses are part of the cancer immune cycle and both populations significantly influence the clinical outcome. In general, the immune system has evolved several mechanisms to protect the host against cancer. Each of them has to be undermined or evaded during cancer development to enable tumor outgrowth...
October 14, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29032502/gut-microbiota-changes-in-the-extreme-decades-of-human-life-a-focus-on-centenarians
#3
REVIEW
Aurelia Santoro, Rita Ostan, Marco Candela, Elena Biagi, Patrizia Brigidi, Miriam Capri, Claudio Franceschi
The gut microbiota (GM) is a complex, evolutionarily molded ecological system, which contributes to a variety of physiological functions. The GM is highly dynamic, being sensitive to environmental stimuli, and its composition changes over the host's entire lifespan. However, the basic question of how much these changes may be ascribed to variables such as population, diet, genetics and gender, and/or to the aging process per se is still largely unanswered. We argue that comparison among studies on centenarians-the best model of healthy aging and longevity-recruited from different geographical areas/populations (different genetics and dietary habits) can help to disentangle the contribution of aging and non-aging-related variables to GM remodeling with age...
October 14, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29032501/epigenetic-regulators-multifunctional-proteins-modulating-hypoxia-inducible-factor-%C3%AE-protein-stability-and-activity
#4
REVIEW
Weibo Luo, Yingfei Wang
The hypoxia-inducible factor (HIF) is a heterodimeric transcription factor governing a transcriptional program in response to reduced O2 availability in metazoans. It contributes to physiology and pathogenesis of many human diseases through its downstream target genes. Emerging studies have shown that the transcriptional activity of HIF is highly regulated at multiple levels and the epigenetic regulators are essential for HIF-mediated transactivation. In this review, we will discuss the comprehensive regulation of HIF transcriptional activity by different types of epigenetic regulators...
October 14, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29026921/role-of-gut-microbiota-in-aging-related-health-decline-insights-from-invertebrate-models
#5
REVIEW
Rebecca I Clark, David W Walker
Studies in mammals, including humans, have reported age-related changes in microbiota dynamics. A major challenge, however, is to dissect the cause and effect relationships involved. Invertebrate model organisms such as the fruit fly Drosophila and the nematode Caenorhabditis elegans have been invaluable in studies of the biological mechanisms of aging. Indeed, studies in flies and worms have resulted in the identification of a number of interventions that can slow aging and prolong life span. In this review, we discuss recent work using invertebrate models to provide insight into the interplay between microbiota dynamics, intestinal homeostasis during aging and life span determination...
October 12, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29022045/author-correction-molecular-basis-of-mycobacterial-survival-in-macrophages
#6
Jane Atesoh Awuh, Trude Helen Flo
One of the author affiliations was missed to include in the original publication. The correct information is given below.
October 11, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29018869/molecular-components-and-polarity-of-radial-glial-cells-during-cerebral-cortex-development
#7
REVIEW
Fu-Sheng Chou, Rong Li, Pei-Shan Wang
Originating from ectodermal epithelium, radial glial cells (RGCs) retain apico-basolateral polarity and comprise a pseudostratified epithelial layer in the developing cerebral cortex. The apical endfeet of the RGCs faces the fluid-filled ventricles, while the basal processes extend across the entire cortical span towards the pial surface. RGC functions are largely dependent on this polarized structure and the molecular components that define it. In this review, we will dissect existing molecular evidence on RGC polarity establishment and during cerebral cortex development and provide our perspective on the remaining key questions...
October 10, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29018868/differential-gene-regulatory-networks-in-development-and-disease
#8
REVIEW
Arun J Singh, Stephen A Ramsey, Theresa M Filtz, Chrissa Kioussi
Gene regulatory networks, in which differential expression of regulator genes induce differential expression of their target genes, underlie diverse biological processes such as embryonic development, organ formation and disease pathogenesis. An archetypical systems biology approach to mapping these networks involves the combined application of (1) high-throughput sequencing-based transcriptome profiling (RNA-seq) of biopsies under diverse network perturbations and (2) network inference based on gene-gene expression correlation analysis...
October 10, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28993834/ipsc-derived-neural-precursor-cells-potential-for-cell-transplantation-therapy-in-spinal-cord-injury
#9
REVIEW
Narihito Nagoshi, Hideyuki Okano
A number of studies have demonstrated that transplantation of neural precursor cells (NPCs) promotes functional recovery after spinal cord injury (SCI). However, the NPCs had been mostly harvested from embryonic stem cells or fetal tissue, raising the ethical concern. Yamanaka and his colleagues established induced pluripotent stem cells (iPSCs) which could be generated from somatic cells, and this innovative development has made rapid progression in the field of SCI regeneration. We and other groups succeeded in producing NPCs from iPSCs, and demonstrated beneficial effects after transplantation for animal models of SCI...
October 9, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28993833/do-anti-stroma-therapies-improve-extrinsic-resistance-to-increase-the-efficacy-of-gemcitabine-in-pancreatic-cancer
#10
REVIEW
Chen Liang, Si Shi, Qingcai Meng, Dingkong Liang, Shunrong Ji, Bo Zhang, Yi Qin, Jin Xu, Quanxing Ni, Xianjun Yu
Pancreatic ductal adenocarcinoma (PDAC) is among the most devastating human malignancies, with approximately 20-30% of PDAC patients receiving the surgical resection with curative intent. Although many studies have focused on finding ideal "drug chaperones" that facilitate and/or potentiate the effects of gemcitabine (GEM) in pancreatic cancer, a significant benefit in overall survival could not be demonstrated for any of these combination therapies in PDAC. Given that pancreatic cancer is characterized by desmoplasia and the dual biological roles of stroma in pancreatic cancer, we reassess the importance of stroma in GEM-based therapeutic approaches in light of current findings...
October 9, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28988399/control-of-hiv-infection-by-ifn-%C3%AE-implications-for-latency-and-a-cure
#11
REVIEW
Nollaig M Bourke, Silvia Napoletano, Ciaran Bannan, Suaad Ahmed, Colm Bergin, Áine McKnight, Nigel J Stevenson
Viral infections, including HIV, trigger the production of type I interferons (IFNs), which in turn, activate a signalling cascade that ultimately culminates with the expression of anti-viral proteins. Mounting evidence suggests that type I IFNs, in particular IFN-α, play a pivotal role in limiting acute HIV infection. Highly active anti-retroviral treatment reduces viral load and increases life expectancy in HIV positive patients; however, it fails to fully eliminate latent HIV reservoirs. To revisit HIV as a curable disease, this article reviews a body of literature that highlights type I IFNs as mediators in the control of HIV infection, with particular focus on the anti-HIV restriction factors induced and/or activated by IFN-α...
October 7, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28988292/role-of-cell-cycle-regulators-in-adipose-tissue-and-whole-body-energy-homeostasis
#12
REVIEW
I C Lopez-Mejia, J Castillo-Armengol, S Lagarrigue, L Fajas
In the course of the last decades, metabolism research has demonstrated that adipose tissue is not an inactive tissue. Rather, adipocytes are key actors of whole body energy homeostasis. Numerous novel regulators of adipose tissue differentiation and function have been identified. With the constant increase of obesity and associated disorders, the interest in adipose tissue function alterations in the XXIst century has become of paramount importance. Recent data suggest that adipocyte differentiation, adipose tissue browning and mitochondrial function, lipogenesis and lipolysis are strongly modulated by the cell division machinery...
October 7, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28988290/early-microbiota-antibiotics-and-health
#13
REVIEW
Alicja M Nogacka, Nuria Salazar, Silvia Arboleya, Marta Suárez, Nuria Fernández, Gonzalo Solís, Clara G de Los Reyes-Gavilán, Miguel Gueimonde
The colonization of the neonatal digestive tract provides a microbial stimulus required for an adequate maturation towards the physiological homeostasis of the host. This colonization, which is affected by several factors, begins with facultative anaerobes and continues with anaerobic genera. Accumulating evidence underlines the key role of the early neonatal period for this microbiota-induced maturation, being a key determinant factor for later health. Therefore, understanding the factors that determine the establishment of the microbiota in the infant is of critical importance...
October 7, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28986602/selected-aspects-of-the-human-gut-microbiota
#14
REVIEW
Marco Ventura, Paul W O'Toole, Willem M de Vos, Douwe van Sinderen
The gut microbiota represents a highly complex assembly of microbes, which interact with each other and with their host. These interactions have various implications in terms of health and disease, and this multi-author review issue will address a number of selected aspects pertaining to gut microbiota research.
October 6, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28986601/microbiome-health-interactions-in-older-people
#15
REVIEW
Paul W O'Toole, Ian B Jeffery
Alterations in the composition and function of the gut microbiome have been implicated in a range of conditions and diseases. Culture-dependent and culture-independent studies both showed that older people harbour a gut microbiome that differs in composition from that of younger adults. Detailed analyses have identified discrete microbiota subtypes that characterize intermediates between a high diversity microbiota found in healthy community-dwelling subjects and a low diversity microbiota typical for elderly living in long-term residential care...
October 6, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28983638/bifidobacteria-and-the-infant-gut-an-example-of-co-evolution-and-natural-selection
#16
REVIEW
Francesca Turroni, Christian Milani, Sabrina Duranti, Chiara Ferrario, Gabriele Andrea Lugli, Leonardo Mancabelli, Douwe van Sinderen, Marco Ventura
Throughout the human life, the gut microbiota interacts with us in a number of different ways, thereby influencing our health status. The acquisition of such an interactive gut microbiota commences at birth. Medical and environmental factors including diet, antibiotic exposure and mode of delivery are major factors that shape the composition of the microbial communities in the infant gut. Among the most abundant members of the infant microbiota are species belonging to the Bifidobacterium genus, which are believed to confer beneficial effects upon their host...
October 5, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28975373/the-impact-of-thyroid-hormone-in-seasonal-breeding-has-a-restricted-transcriptional-signature
#17
Didier Lomet, Juliette Cognié, Didier Chesneau, Emeric Dubois, David Hazlerigg, Hugues Dardente
Thyroid hormone (TH) directs seasonal breeding through reciprocal regulation of TH deiodinase (Dio2/Dio3) gene expression in tanycytes in the ependymal zone of the medio-basal hypothalamus (MBH). Thyrotropin secretion by the pars tuberalis (PT) is a major photoperiod-dependent upstream regulator of Dio2/Dio3 gene expression. Long days enhance thyrotropin production, which increases Dio2 expression and suppresses Dio3 expression, thereby heightening TH signaling in the MBH. Short days appear to exert the converse effect...
October 3, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28975370/mesenchymal-stem-cells-from-preterm-to-term-newborns-undergo-a-significant-switch-from-anaerobic-glycolysis-to-the-oxidative-phosphorylation
#18
Silvia Ravera, Marina Podestà, Federica Sabatini, Chiara Fresia, Marta Columbaro, Silvia Bruno, Ezio Fulcheri, Luca Antonio Ramenghi, Francesco Frassoni
We evaluated the energy metabolism of human mesenchymal stem cells (MSC) isolated from umbilical cord (UC) of preterm (< 37 weeks of gestational age) and term (≥ 37 weeks of gestational age) newborns, using MSC from adult bone marrow as control. A metabolic switch has been observed around the 34th week of gestational age from a prevalently anaerobic glycolysis to the oxidative phosphorylation. This metabolic change is associated with the organization of mitochondria reticulum: preterm MSCs presented a scarcely organized mitochondrial reticulum and low expression of proteins involved in the mitochondrial fission/fusion, compared to term MSCs...
October 3, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28975366/a-double-dealing-tale-of-p63-an-oncogene-or-a-tumor-suppressor
#19
REVIEW
Yonglong Chen, Yougong Peng, Shijie Fan, Yimin Li, Zhi-Xiong Xiao, Chenghua Li
As a member of tumor suppressor p53 family, p63, a gene encoding versatile protein variant, has been documented to correlate with cancer formation and progression, though it is rarely mutated in cancer patients. However, it has long been controversial on whether p63 is an oncogene or a tumor suppressor. Here, we comprehensively reviewed reports on roles of p63 in development, tumorigenesis and tumor progression. According to data from molecular cell biology, genetic models and clinic research, we conclude that p63 may act as either an oncogene or a tumor suppressor gene in different scenarios: TA isoforms of p63 gene are generally tumor-suppressive through repressing cell proliferation, survival and metastasis; ΔN isoforms, however, may initiate tumorigenesis via promoting cell proliferation and survival, but inhibit tumor metastasis and progression; effects of p63 on tumor formation and progression depend on the context of the whole p53 family, and either amplification or loss of p63 gene locus can break the balance to cause tumorigenesis...
October 3, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28965207/phoenixin-14-detection-and-novel-physiological-implications-in-cardiac-modulation-and-cardioprotection
#20
C Rocca, F Scavello, M C Granieri, T Pasqua, N Amodio, S Imbrogno, A Gattuso, R Mazza, Maria Carmela Cerra, Tommaso Angelone
Phoenixin-14 (PNX) is a newly identified peptide co-expressed in the hypothalamus with the anorexic and cardioactive Nesfatin-1. Like Nesfatin-1, PNX is able to cross the blood-brain barrier and this suggests a role in peripheral modulation. Preliminary mass spectrography data indicate that, in addition to the hypothalamus, PNX is present in the mammalian heart. This study aimed to quantify PNX expression in the rat heart, and to evaluate whether the peptide influences the myocardial function under basal condition and in the presence of ischemia/reperfusion (I/R)...
September 30, 2017: Cellular and Molecular Life Sciences: CMLS
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