Abstract:
:Pancreatic cancer is one of the deadliest human malignancies and little progress has been achieved in its treatment over the past decades. Advances in our understanding of the biology of this disease provide new potential opportunities for treatment. Pancreatic cancer is preceded by precursor lesions, the most common of which are known as Pancreatic Intraepithelial Neoplasia (PanIN). PanIN lesions, which are the focus of this review, have a high incidence of Kras mutations, and Kras mutations are a hallmark of the late-stage disease. We now know from genetically engineered mouse models that oncogenic Kras is not only driving the formation of pancreatic cancer precursor lesions, but it is also required for their progression, and for the maintenance of invasive and metastatic disease. Thus, an enormous effort is being placed in generating Kras inhibitors for clinical use. Additionally, alternative approaches, including understanding the role of Kras effector pathways at different stages of the disease progression, are being devised to target Kras effector pathways therapeutically. In particular, efforts have focused on the MAPK pathway and the PI3K pathway, for which inhibitors are widely available. Finally, recent studies have highlighted the need for oncogenic Kras to establish feedback mechanisms that maintain its levels of activity; the latter might constitute alternative ways to target Kras in pancreatic cancer. Here, we will review recent basic research and discuss potential therapeutic applications.
journal_name
Front Physioljournal_title
Frontiers in physiologyauthors
Collins MA,Pasca di Magliano Mdoi
10.3389/fphys.2013.00407subject
Has Abstractpub_date
2014-01-21 00:00:00pages
407issn
1664-042Xjournal_volume
4pub_type
杂志文章,评审abstract::Human physiological signals are inherently rhythmic and have a hallmark feature in that even distant intrasignal measurements are related to each other. This relationship is termed long-range correlation and has been recognized as an indicator of the optimal state of the observed physiological systems, among which the...
journal_title:Frontiers in physiology
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doi:10.3389/fphys.2020.00562
更新日期:2020-06-23 00:00:00
abstract::Malignant hypertension develops in some cases of hypertension but not in others. We hypothesized that an impaired neovascularization and a reduced capillary supply characterizes the malignant course of experimental hypertension. Two-kidney, one-clip renovascular hypertension was induced in rats; controls (sham) were s...
journal_title:Frontiers in physiology
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abstract::Social attachment formed by filial imprinting in newborn chicks undergoes a process of memory consolidation that involves rearrangement of its neural storage substrates. In the first 3 h after imprinting it depends on the integrity of the intermediate medial mesopallium (IMM) and beyond that time on unidentified memor...
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pub_type: 杂志文章
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journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
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更新日期:2014-12-09 00:00:00
abstract:PURPOSE:The aim of present investigation was to evaluate marginal bone level after 5-year follow-up of implants placed in healed ridges and fresh extraction sockets in maxilla with immediate loading protocol. MATERIALS AND METHODS:Thirty-six patients in need of a single-tooth replacement in the anterior maxilla receiv...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2014.00029
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abstract::Mild normobaric hypoxia (NH) and modest exercise have multiple beneficial effects on health, but the changes in physiological function induced by NH and/or exercise remain unclear. The purpose of this investigation was to examine the specific effects of NH and/or exercise on cardiac function and myocardial structure a...
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abstract::Purpose: To provide insights into the energy requirements as well as the physiological adaptations of an experienced 50-year-old ultra-marathon male athlete during the world's most challenging mountain ultra-marathon (MUM). Methods: The international race supporting the study was the Tor des Geants®, characterized by ...
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doi:10.3389/fphys.2017.01003
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journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
doi:10.3389/fphys.2016.00547
更新日期:2016-11-17 00:00:00
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.00653
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abstract::Exercise and physical labor in extreme environmental conditions causes transient decreases in immune cell and cytokine concentrations, likely increasing the susceptibility to opportunistic infection. Baker's yeast beta glucan (BYBG) has been previously demonstrated to be an effective countermeasure in athletes, but it...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2017.00786
更新日期:2017-10-20 00:00:00
abstract::The pea aphid, Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae), shows wing polyphenism (winged and wingless morphs) in its life cycle. The winged morph is adapted for dispersal; its two developmental adult stages (for dispersal and reproduction) are based on its breeding periods. The two morphs show different phot...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2016.00307
更新日期:2016-08-02 00:00:00
abstract::Obesity is characterized by an excessive increase in body mass, leading to endothelial damage that may favor the development of erectile dysfunction (ED). ED is defined as the inability to achieve or maintain a penile erection long enough to have a sexual intercourse. In this context, different ED models were develope...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2017.00760
更新日期:2017-10-04 00:00:00
abstract:AIM:The signaling pathways involved in the regulation of cardiac GLUT4 translocation/glucose uptake and CD36 translocation/long-chain fatty acid uptake are not fully understood. We compared in heart/muscle-specific PKC-λ knockout mice the roles of atypical PKCs (PKC-ζ and PKC-λ) in regulating cardiac glucose and fatty ...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2012.00361
更新日期:2012-09-11 00:00:00
abstract::Chronic kidney disease (CKD) can have an insidious onset because there is a gradual decline in nephron number throughout life. There may be no overt symptoms of renal dysfunction until about two thirds or more of the nephrons have been destroyed and glomerular filtration rate (GFR) falls to below 25% of normal (often ...
journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
doi:10.3389/fphys.2020.00757
更新日期:2020-07-16 00:00:00
abstract::Molecular imaging has emerged in the past few decades as a novel means to investigate atherosclerosis. From a pathophysiological perspective, atherosclerosis is characterized by microscopic inflammation and microcalcification that precede the characteristic plaque buildup in arterial walls detected by traditional asse...
journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
doi:10.3389/fphys.2020.511391
更新日期:2020-10-22 00:00:00
abstract::Reperfusion of ischemic cardiac tissue is the standard treatment for improving clinical outcome following myocardial infarction but is inevitably associated with ischemia-reperfusion injury (IRI). Ischemic myocardial injury can be alleviated by exposing the heart to brief episodes of sublethal ischemia-reperfusion pri...
journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
doi:10.3389/fphys.2015.00137
更新日期:2015-05-20 00:00:00
abstract::Exercise is known to improve many aspects of human health, including modulation of the immune system and inflammatory status. It is generally understood that exercise reduces inflammation, but there are missing links in terms of understanding the mechanisms as well as the differences between exercise modalities. N-gly...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2019.01522
更新日期:2019-12-20 00:00:00
abstract::Growing elderly populations, sometimes referred to as gray (or silver) tsunami, are an increasingly serious health and socioeconomic concern for modern societies. Science has made tremendous progress in the understanding of aging itself, which has helped medicine to extend life expectancies. With the increase of the l...
journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
doi:10.3389/fphys.2019.01508
更新日期:2019-12-18 00:00:00
abstract::Whether mouse models of chronic asthma can be used to investigate the relationship between airway inflammation/remodeling and airway hyper-responsiveness (AHR) is a vexed question. It raises issues about the extent to which such models replicate key features of the human disease. Here, we review some of the characteri...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2012.00312
更新日期:2012-07-31 00:00:00
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2019.00577
更新日期:2019-05-09 00:00:00
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journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
doi:10.3389/fphys.2014.00532
更新日期:2015-01-21 00:00:00
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2019.00977
更新日期:2019-07-26 00:00:00
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2013.00023
更新日期:2013-02-15 00:00:00
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journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
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更新日期:2013-12-17 00:00:00
abstract::Cells expressing bitter taste receptors (T2Rs or Tas2rs) in extraoral tissues are considered to be chemosensory cells mediating protective responses to potentially harmful or even antiinflammatory or antimicrobial compounds. In a previous study the activity of the Tas2R143/Tas2R135/Tas2r126 cluster promoter in the sto...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2020.00032
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.01164
更新日期:2018-08-21 00:00:00
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2015.00189
更新日期:2015-07-07 00:00:00
abstract::Breast cancer is the most common type of cancer among women and despite recent advances in the medical field, there are still some inherent limitations in the currently used screening techniques. The radiological interpretation of screening X-ray mammograms often leads to over-diagnosis and, as a consequence, to unnec...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2014.00176
更新日期:2014-05-08 00:00:00
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2020.00312
更新日期:2020-04-24 00:00:00