journal
MENU ▼
Read by QxMD icon Read
search

Molecular Medicine

journal
https://www.readbyqxmd.com/read/28332697/alpha-1-antitrypsin-inhibits-rankl-induced-osteoclast-formation-and-functions
#1
Mohammad Ahsanul Akbar, David Nardo, Mong-Jen Chen, Ahmed S Elshikha, Rubina Ahamed, Eslam M Elsayed, Claire Bigot, Lexie Shannon Holliday, Sihong Song
Osteoporosis is a global public health problem affecting more than 200 million people worldwide. We previously showed that treatment with alpha-1 antitrypsin (AAT), a multifunctional protein with anti-inflammatory properties, mitigated bone loss in an ovariectomized mouse model. However, the underlying mechanisms of the protective effect of AAT on bone tissue are largely unknown. In this study, we investigated the effect of AAT on osteoclast formation and function in vitro. Our results showed that AAT dose-dependently inhibited the formation of RANKL (receptor activator of nuclear factor κB ligand) induced osteoclasts derived from mouse bone marrow macrophages/monocyte (BMM) lineage cells and the murine macrophage cell line, RAW 264...
March 21, 2017: Molecular Medicine
https://www.readbyqxmd.com/read/28283678/deficiency-of-%C3%AE-7-nicotinic-acetylcholine-receptor-attenuates-bleomycin-induced-lung-fibrosis-in-mice
#2
Peiyu Sun, Ling Li, Caiqi Zhao, Mengyao Pan, Zhikang Qian, Xiao Su
α7 nicotinic acetylcholine receptor (α7 nAChR, coded by Chrna7) is indispensible in dampening proinflammatory responses. However, whether α7 nAChR would play a role in regulating bleomycin (BLM)-induced lung fibrosis is less investigated. Here, we intratracheally challenged wildtype and Chrna7(-/-) mice with BLM to elicit lung fibrosis. Taken advantage of this model, we measured body weight loss, lung fibrogenic genes (Acta2, Col1a1, Fsp1, and Fstl1), histology, Masson's trichrome staining, hydroxyproline levels, and expression of α-SMA at protein levels in the BLM-challenged lung for evaluating severity of lung fibrosis...
March 6, 2017: Molecular Medicine
https://www.readbyqxmd.com/read/28182192/dabigatran-potentiates-gemcitabine-induced-growth-inhibition-of-pancreatic-cancer-in-mice
#3
Kun Shi, Helene Damhofer, Joost Daalhuisen, Marieke Ten Brink, Dick J Richel, C Arnold Spek
Pancreatic cancer is one of the most lethal solid malignancies with little treatment options. We have recently shown that expression of protease activated receptor (PAR)-1 in the tumor microenvironment drives progression and induces chemoresistance of pancreatic cancer. As thrombin is the prototypical PAR-1 agonist, here we addressed the effect of the direct thrombin inhibitor dabigatran on pancreatic cancer growth and drug resistance in an orthotropic pancreatic cancer model. We show that dabigatran treatment did not affect primary tumor growth whereas it significantly increased tumor dissemination throughout the peritoneal cavity...
February 6, 2017: Molecular Medicine
https://www.readbyqxmd.com/read/28182191/mir-155-modifies-inflammation-endothelial-activation-and-blood-brain-barrier-dysfunction-in-cerebral-malaria
#4
Kevin Richard Barker, Ziyue Lu, Hani Kim, Ying Zheng, Junmei Chen, Andrea L Conroy, Michael Hawkes, Henry S Cheng, Makon-Sébastien Njock, Jason E Fish, John M Harlan, Jose A López, W Conrad Liles, Kevin C Kain
miR-155 has been shown to participate in host response to infection and neuro-inflammation via negative regulation of blood-brain-barrier (BBB) integrity and T cell function. We hypothesized that miR-155 may contribute to the pathogenesis of cerebral malaria (CM). To test this hypothesis, we used a genetic approach to modulate miR-155 expression in an experimental model of cerebral malaria (ECM). In addition, an engineered endothelialized microvessel system and serum samples from Ugandan children with CM were used to examine an anti-miR-155 as a potential adjunctive therapeutic for severe malaria...
February 2, 2017: Molecular Medicine
https://www.readbyqxmd.com/read/28097289/binding-of-cll-subset-4-b-cell-receptor-immunoglobulins-to-viable-human-memory-b-lymphocytes-requires-a-distinctive-igkv-somatic-mutation
#5
Rosa Catera, Yun Liu, Chao Gao, Xiao-Jie Yan, Amanda Magli, Steven L Allen, Jonathan E Kolitz, Kanti R Rai, Charles C Chu, Ten Feizi, Kostas Stamatopoulos, Nicholas Chiorazzi
Amino acid replacement mutations in certain CLL stereotyped B-cell receptor (BCR) immunoglobulins (IGs) at defined positions within antigen-binding sites strongly imply antigen selection. Prime examples of this are CLL subset 4 BCR IGs using IGHV4-34/IGHD5-18/IGHJ6 and IGKV2-30/IGKJ2 rearrangements. Conspicuously and unlike most CLL IGs, subset 4 IGs do not bind apoptotic cells. By testing the (auto)antigenic reactivities of subset 4 IGs toward viable lymphoid-lineage cells and specific autoantigens typically bound by IGHV4-34(+) IGs, we found IGs from both subset 4 and non-subset 4 IGHV4-34-expressing CLL cases bind naïve B cells...
January 12, 2017: Molecular Medicine
https://www.readbyqxmd.com/read/28079229/the-transcription-factor-xbp1-in-memory-and-cognition-implications-in-alzheimer-disease
#6
Moustapha Cissé, Eric Duplan, Frédéric Checler
X-box binding protein 1 (XBP1) is a unique basic region leucine zipper transcription factor isolated two decades ago in a search for regulators of major histocompatibility complex class II gene expression. XBP1 is a very complex protein regulating many physiological functions, including immune system, inflammatory responses, and lipid metabolism. Evidence over the past few years suggests that XBP1 also plays important roles in pathological settings since its activity as transcription factor has profound effects on the prognosis and progression of diseases such as cancer, neurodegeneration, and diabetes...
January 4, 2017: Molecular Medicine
https://www.readbyqxmd.com/read/27999842/reduced-skin-blistering-in-experimental-epidermolysis-bullosa-acquisita-after-anti-tnf-treatment
#7
Misa Hirose, Anika Kasprick, Foteini Beltsiou, Katharina Dieckhoff Schulze, Franziska Sophine Schulze, Unni Kjsrl Samavedam, Jennifer E Hundt, Hendri H Pas, Marcel F Jonkman, Enno Schmidt, Kathrin Kalies, Detlef Zillikens, Ralf J Ludwig, Katja Bieber
Epidermolysis bullosa acquisita (EBA) is a difficult-to-treat subepidermal autoimmune blistering skin disease (AIBD) with circulating and tissue-bound anti-type VII collagen antibodies. Different reports have indicated an increased concentration of tumor necrosis factor alpha (TNF) in the serum and blister fluid of patients with subepidermal AIBDs. Furthermore, successful anti-TNF treatment has been reported for individual patients with AIBDs. Here, we show that in mice, induction of experimental EBA by repeated injections of rabbit-anti mouse type VII collagen antibodies led to increased expression of TNF in skin, as determined by real-time PCR and immunohistochemistry...
December 20, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/28079228/attenuated-recovery-of-contractile-function-in-aging-hearts-following-global-ischemia-reperfusion-role-of-extracellular-hsp27-and-tlr4
#8
Lihua Ao, Yufeng Zhai, Chunhua Jin, Joseph C Cleveland, David A Fullerton, Xianzhong Meng
BACKGROUND: While cardiac functional recovery is attenuated in the elderly following cardiac surgery with obligatory global myocardial ischemia/reperfusion (I/R), the underlying mechanism remains incompletely understood. We observed previously that human and mouse myocardium releases heat shock protein (HSP) 27 during global I/R. Extracellular HSP27 induces myocardial inflammatory response and plays a role in post-ischemic cardiac dysfunction in adult mouse hearts. OBJECTIVE: This study was to determine the role of extracellular HSP27 and Toll-like receptor 4 (TLR4) in the attenuated functional recovery in aging mouse hearts following global I/R...
December 19, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27925633/shock-wave-enhances-angiogenesis-through-vegfr2-activation-and-recycling
#9
Tien-Hung Huang, Cheuk-Kwan Sun, Yi-Ling Chen, Ching-Jen Wang, Tsung-Cheng Yin, Mel S Lee, Hon-Kan Yip
Although low-energy shock wave (SW) is adopted to treat ischemic diseases because of its pro-angiogenic properties, the underlying mechanism remains unclear. This study aimed at testing whether SW-induced angiogenesis may be through endothelial vascular endothelial growth factor receptor 2 (VEGFR2) signaling and trafficking. Phosphorylation of VEGFR2-Akt-eNOS axis and production of nitric oxide (NO) were determined in human umbilical vein endothelial cells (HUVECs) treated with SW. Carotid artery in ob/ob mice was treated with SW before evaluation with sprouting assay...
December 6, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27925632/sepsis-induces-telomere-shortening-a-potential-mechanism-responsible-for-delayed-pathophysiological-events-in-sepsis-survivors
#10
Naara Mendes Oliveira, Ester C S Rios, Thais Martins de Lima, Vanessa Jacob Victorino, Hermes Barbeiro, Fabiano Pinheiro da Silva, Csaba Szabo, Francisco Garcia Soriano
Sepsis survivors suffer from additional morbidities, including higher disk of readmissions, nervous system disturbances and cognitive dysfunction, and increased mortality, even several years after the initial episode of sepsis. In many ways, the phenotype of sepsis survivors resembles the phenotype associated with accelerated aging. Since telomere shortening is a hallmark of aging, we investigated whether sepsis also leads to telomere shortening. Male balb/c mice were divided into two groups: the control group received 100 μl of normal saline intraperitoneally; the sepsis group received 15 mg/kg of bacterial lipopolysaccharide i...
December 5, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27900387/a-modification-specific-peptide-based-immunization-approach-using-crm197-carrier-protein-development-of-a-selective-vaccine-against-pyroglutamate-a%C3%AE-peptides
#11
Valérie Vingtdeux, Haitian Zhao, Pallavi Chandakkar, Christopher M Acker, Peter Davies, Philippe Marambaud
Strategies aimed at reducing cerebral accumulation of the amyloid-β (Aβ) peptides have therapeutic potential in Alzheimer's disease (AD). Aβ immunization has proven to be effective at promoting Aβ clearance in animal models but adverse effects have hampered its clinical evaluation. The first anti-Aβ immunization clinical trial, which assessed a full-length Aβ1-42 vaccine, increased the risk of encephalitis most likely because of autoimmune pro-inflammatory T helper 1 (Th1) response against all forms of Aβ...
November 28, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27900389/the-clearance-of-cell-remnants-and-the-regeneration-of-the-injured-muscle-depend-on-soluble-pattern-recognition-receptor-ptx3
#12
Michela Vezzoli, Clara Sciorati, Lara Campana, Antonella Monno, Maria Giulia Doglio, Elena Rigamonti, Gianfranca Corna, Thierry Touvier, Alessandra Castiglioni, Annalisa Capobianco, Alberto Mantovani, Angelo A Manfredi, Cecilia Garlanda, Patrizia Rovere-Querini
OBJECTIVE: The signals causing the resolution of muscle inflammation are only partially characterized. The long pentraxin PTX3, which modulates leukocyte recruitment and activation, could contribute. METHODS: We analysed the expression of ptx3 after muscle injury and verified whether hematopoietic precursors are a source of the protein. The kinetics of regeneration and leukocytes infiltration, the accumulation of cell remnants and anti-histidyl-t-RNA synthetase autoantibodies were compared in wild-type and ptx3-deficient mice...
November 23, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27900388/data-driven-modeling-for-precision-medicine-in-pediatric-acute-liver-failure
#13
Ruben Zamora, Yoram Vodovotz, Qi Mi, Derek Barclay, Jinling Yin, Simon Horslen, David Rudnick, Kathleen M Loomes, Robert H Squires
Absence of early outcome biomarkers for Pediatric Acute Liver Failure (PALF) hinders medical and liver transplant decisions. We sought to define dynamic interactions among circulating inflammatory mediators to gain insights into PALF outcome sub-groups. Serum samples from 101 participants in the PALF study, collected over the first 7 days following enrollment, were assayed for 27 inflammatory mediators. Outcomes (Spontaneous survivors [S, n=61], Non-survivors [NS, n=12], and liver transplant patients [LTx, n=28]) were assessed at 21 days post-enrollment...
November 23, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27878210/t-regulatory-cell-mediated-immunotherapy-for-solid-organ-transplantation-a-clinical-perspective
#14
Mohammad Afzal Khan
T regulatory cells (Tregs) play a vital role in suppressing heightened immune responses, and thereby promote a state of immunological tolerance. Tregs modulate both innate and adaptive immunity, which make them a potential candidate for cell-based immunotherapy to suppress uncontrolled activation of graft specific inflammatory cells and their toxic mediators. These grafts specific inflammatory cells (T effector cells) and other inflammatory mediators (Immunoglobulins, active complement mediators) are mainly responsible for graft vascular deterioration followed by acute/chronic rejection...
November 22, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27878211/liraglutide-enhances-the-efficacy-of-human-mesenchymal-stem-cells-in-preserving-islet-%C3%AE-cell-function-in-severe-non-obese-diabetic-mice
#15
Li-Rong Li, Xiao-Lei Jia, Hui Hui, Jie Zhang, Ying Liu, Wei-Juan Cui, Qian-Yue Xu, Da-Long Zhu
Glucagon-like peptide 1 (GLP-1) can promote islet β-cell replication and function, and mesenchymal stem cells (MSCs) can inhibit T cell autoimmunity. This study aimed at testing the dynamic distribution of infused human MSCs and therapeutic effect of combined MSCs and Liraglutide, a long-acting GLP-1 analogue, on preserving β-cell function in severe non-obese diabetic (NOD) mice. We found that infused MSCs accumulated in the pancreas at 4 weeks post infusion, which was not affected by Liraglutide treatment...
November 17, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27878209/preclinical-models-of-overwhelming-sepsis-implicate-the-neural-system-that-encodes-contextual-fear-memory
#16
Patricio T Huerta, Sergio Robbiati, Tomás Salvador Huerta, Anchal Sabharwal, Rose A Berlin, Maya Frankfurt, Bruce T Volpe
Long-term sepsis survivors sustain cryptic brain injury that leads to cognitive impairment, emotional imbalance, and increased disability burden. Suitable animal models of sepsis, such as cecal ligation and puncture (CLP), have permitted the analysis of abnormal brain circuits that underlie post-septic behavioral phenotypes. For instance, we have previously shown that CLP-exposed mice exhibit impaired spatial memory together with depleted dendritic arbors and decreased spines in the apical dendrites of pyramidal neurons in the CA1 region of the hippocampus...
November 17, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27878212/obesity-paradox-obesity-orthodox-and-the-metabolic-syndrome-an-approach-to-unity
#17
Jesse Roth, Navneet Sahota, Priya Patel, Syed Faizan Mehdi, Mohammad Masum Wiese, Hafiz B Mahboob, Michelle Bravo, Daniel J Eden, Muhammad A Bashir, Amrat Kumar, Farah Alsaati, Irwin J Kurland, Wunnie Brima, Ann Danoff, Alessandra L Szulc, Valentin A Pavlov, Kevin J Tracey, Huan Yang
Obesity and the accompanying metabolic syndrome are strongly associated with heightened morbidity and mortality in older adults. In our review of more than 20 epidemiologic studies of major infectious diseases, including leaders such as tuberculosis, community-acquired pneumonia, and sepsis, obesity was associated with better outcomes. A cause-and-effect relationship between over-nutrition and survival with infection is suggested by results of two preliminary studies of infections in mice, where high fat feeding for 8-10 weeks provided much better outcomes...
November 16, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27847962/the-multi-target-effects-of-cni-1493-convergence-of-anti-amylodogenic-and-anti-inflammatory-properties-in-animal-models-of-alzheimer-s-disease
#18
Roman Sankowski, Arne Herring, Kathy Keyvani, Kathrin Frenzel, Jinyu Wu, Stephan Röskam, Carmen Noelker, Michael Bacher, Yousef Al-Abed
After several decades of Alzheimer's disease (AD) research and failed clinical trials, one can speculate that targeting a single pathway is not sufficient. However, a cocktail of novel therapeutics will constitute a challenging clinical trial. A more plausible approach will capitalize on a drug that has relevant and synergistic multiple-target effects in AD. We have previously demonstrated the efficacy of CNI-1493 in the CRND8 transgenic AD mouse model. Similar to many anti-inflammatory drugs that were tested in preclinical model of AD, it was speculated that the significant effect of CNI-1493 is due to its established anti-inflammatory properties in rodents and humans...
November 15, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27819109/a-journey-in-science-not-lost-in-translation
#19
Tak Mak
Real innovations in medicine and science are historic and singular; the stories behind each occurrence are precious. At Molecular Medicine we have established the Anthony Cerami Award in Translational Medicine to document and preserve these histories. The monographs recount the seminal events as told in the voice of the original investigators who provided the crucial early insight. These essays capture the essence of discovery, chronicling the birth of ideas that created new fields of research; and launched trajectories that persisted and ultimately influenced how disease is prevented, diagnosed, and treated...
November 1, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27782294/a-novel-role-for-programmed-cell-death-receptor-ligand-1-pd-l1-in-sepsis-induced-intestinal-dysfunction
#20
Youping Wu, Chun-Shiang Chung, Yaping Chen, Sean Farrell Monaghan, Sima Patel, Xin Huang, Daithi Seamus Heffernan, Alfred Ayala
Studies imply that intestinal barrier dysfunction is a key contributor to morbid events associated with sepsis. Recently, co-inhibitory molecule, programmed death-ligand1 (PD-L1) has been shown to be involved in the regulation of intestinal immune tolerance and/or inflammation. Our previous studies showed that PD-L1 gene deficiency reduced sepsis-induced intestinal injury morphologically. However, it isn't known how PD-L1 expression impacts intestinal barrier dysfunction during sepsis. Here we tested the hypothesis that PD-L1 expressed on intestinal epithelial cells (IECs) has a role in sepsis-induced intestinal barrier dysfunction...
October 25, 2016: Molecular Medicine
journal
journal
32152
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"