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https://www.readbyqxmd.com/read/28822901/morphological-and-molecular-differences-in-corpus-luteum-of-pregnant-sows-from-divergent-genetic-groups
#1
Karine A Costa, Walmir da Silva, Renata Veroneze, José C Montes, Lucas L Verardo, Margareth E Botelho, Márcio S Duarte, Mariana M Neves, Paulo S Lopes, José D Guimarães, Susana A Teixeira, Laene Alcantara, Simone E F Guimarães
Comprehending mechanisms controlling corpus luteum (CL) angiogenesis and apoptosis in pregnant sows is essential to understand the physiological role of these processes in CL function, progesterone production and consequently in conceptus development and prenatal mortality. CL from 54 sows from two genetic groups, a commercial line (COM) and the local Piau breed (LPB), were obtained for gene expression (n = 3 COM; n = 6 LPB), histological and protein analysis (n = 3 COM; n = 3 LPB), divided in six gestational ages (seven, 15, 30, 45, 60 and 90 days)...
July 29, 2017: Theriogenology
https://www.readbyqxmd.com/read/28821164/cape-gooseberry-physalis-peruviana-juice-as-a-modulator-agent-for-hepatocellular-carcinoma-linked-apoptosis-and-cell-cycle-arrest
#2
Hanaa A Hassan, Hanaa M Serag, Makwan S Qadir, Mohamed Fawzy Ramadan
BACKGROUND: Cape gooseberry (Physalis peruviana) fruit is highly nutritious with high content of health-promoting compounds including minerals, phenolic compounds, as well as vitamins A and C. Physalis peruviana fruits were used as mutagenic, antispasmodic, anticoagulant, and antileucemis agents. OBJECTIVE: The objective of the present work was to study the role of cape gooseberry juice (CG) as a natural modulator agent for adverse aspects associated with hepatocellular carcinoma (HCC)...
August 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28821028/targeted-gene-delivery-of-polyethyleneimine-grafted-chitosan-with-rgd-dendrimer-peptide-in-%C3%AE-v%C3%AE-3-integrin-overexpressing-tumor-cells
#3
Young-Min Kim, Seong-Cheol Park, Mi-Kyeong Jang
The safe and effective delivery of genetic material into cells is a necessary factor for gene therapy. Although a wide range of materials, methods, and combinations have been reported, successful gene therapy has been limited. In the present study, a targeted gene carrier for αvβ3 integrin-overexpressing tumor cells was designed using widely applied materials containing water soluble chitosan (WSC), RGD peptide, and polyethyleneimine (PEI). The physiological characteristics, in vitro targeted gene transfection, cytotoxicity, blood-compatibility, and cellular distributions were investigated...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28817115/administration-of-follicle-stimulating-hormone-induces-autophagy-via-upregulation-of-hif-1%C3%AE-in-mouse-granulosa-cells
#4
Jilong Zhou, Wang Yao, Chengyu Li, Wangjun Wu, Qifa Li, Honglin Liu
Recent studies reported the important role of autophagy in follicular development. However, the underlying molecular mechanisms remain elusive. In this study, we investigated the effect of follicle-stimulating hormone (FSH) on mouse granulosa cells (MGCs). Results indicated that autophagy was induced by FSH, which is known to be the dominant hormone regulating follicular development and granulosa cell (GC) proliferation. The activation of mammalian target of rapamycin (mTOR), a master regulator of autophagy, was inhibited during the process of MGC autophagy...
August 17, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28812970/indole-3-carbinol-induces-g1-cell-cycle-arrest-and-apoptosis-through-aryl-hydrocarbon-receptor-in-thp-1-monocytic-cell-line
#5
Saeed Mohammadi, Fakhri Sadat Seyedhosseini, Nasser Behnampour, Yaghoub Yazdani
OBJECTIVES: The role of aryl hydrocarbon receptor (AhR) in carcinogenesis has been studied recently. Indole-3-carbinol (I3C) is an AhR agonist and a potential anticancer agent. Here, we investigated the effects of I3C on cell cycle progression and apoptosis through activation of AhR on THP-1 acute myeloid leukemia (AML) cell line. METHODS: MTT viability assay was used to measure the cytotoxic effects of I3C on THP-1 cells. Apoptosis and cell cycle assays were investigated using flow cytometry...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28808383/chemopreventive-potential-of-major-flavonoid-compound-of-methanolic-bark-extract-of-saraca-asoca-roxb-in-benzene-induced-toxicity-of-acute-myeloid-leukemia-mice
#6
Manas Kumar Mukhopadhyay, Mithun Shaw, Debjani Nath
BACKGROUND: Saraca asoca (SA) (Roxb.) is one of the folk medicinal plants found in India, Bangladesh, and Sri Lanka. Its major biological activity appears due to the presence of flavonoid group of compounds in its bark extract. OBJECTIVE: In this study, our research aims to analyze the chemopreventive effect of flavonoids, especially a natural phenol catechin present in the bark methanolic extract of SA on acute myeloid leukemia (AML) mice. MATERIALS AND METHODS: The total bark extract was partitioned and analyzed on thin-layer chromatography (TLC) plate...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28808089/bag3-mediated-proteostasis-at-a-glance
#7
REVIEW
Christina Klimek, Barbara Kathage, Judith Wördehoff, Jörg Höhfeld
Cellular and organismal survival depend on the ability to maintain the proteome, even under conditions that threaten protein integrity. BCL2-associated athanogene 3 (BAG3) is essential for protein homeostasis (proteostasis) in stressed cells. Owing to its multi-domain structure, it engages in diverse processes that are crucial for proteome maintenance. BAG3 promotes the activity of molecular chaperones, sequesters and concentrates misfolded proteins, initiates autophagic disposal, and balances transcription, translation and degradation...
August 14, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28806762/a-becn1-mutation-mediates-hyperactive-autophagic-sequestration-of-amyloid-oligomers-and-improved-cognition-in-alzheimer-s-disease
#8
Altea Rocchi, Soh Yamamoto, Tabitha Ting, Yuying Fan, Katherine Sadleir, Yigang Wang, Weiran Zhang, Sui Huang, Beth Levine, Robert Vassar, Congcong He
Impairment of the autophagy pathway has been observed during the pathogenesis of Alzheimer's disease (AD), a neurodegenerative disorder characterized by abnormal deposition of extracellular and intracellular amyloid β (Aβ) peptides. Yet the role of autophagy in Aβ production and AD progression is complex. To study whether increased basal autophagy plays a beneficial role in Aβ clearance and cognitive improvement, we developed a novel genetic model to hyperactivate autophagy in vivo. We found that knock-in of a point mutation F121A in the essential autophagy gene Beclin 1/Becn1 in mice significantly reduces the interaction of BECN1 with its inhibitor BCL2, and thus leads to constitutively active autophagy even under non-autophagy-inducing conditions in multiple tissues, including brain...
August 14, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28805353/the-role-of-melatonin-receptor-mtnr1a-in-the-action-of-melatonin-on-bovine-granulosa-cells
#9
Shu-Juan Wang, Wen-Ju Liu, Li-Ke Wang, Xun-Sheng Pang, Li-Guo Yang
Granulosa cells (GCs) play an important role in ovarian follicle growth, development, and follicular atresia. In the present study, we investigated the effects of Melatonin on bovine GCs, and asked if MTNR1A was involved in their response to this indole hormone. Our results indicated that Melatonin inhibited GC apoptosis by up-regulating the expression of BCL2, BCL-XL, GPX4, and SOD1, and down-regulating the expression of BAX, CASP3, and TP53. Moreover, Melatonin modulated bovine GC function by decreasing the expression of INHA, INHBB, FSHR, and TGFBR3, and the abundance of Inhibin β and Activin B, while increasing the expression of LHR, INHBA, and secretion of progesterone by GCs...
August 14, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28805284/interaction-of-the-n-terminal-tandem-domains-of-hnrnp-ll-with-the-bcl2-promoter-i-motif-dna-sequence
#10
Harald Schwalbe, Lauris Lannes, Phoebe Young, Christian Richter, Nina Morgner
The human genome contains GC-rich sequences able to form tetraplex secondary structures known as G-quadruplex and i-motif. Such sequences are notably present in the promoter region of oncogenes and are proposed to function as regulatory elements of the gene expression. The P1 promoter of BCL2 contains a 39-mer C-rich sequence (Py39wt) which can fold into a hairpin or an i-motif in a pH-dependent manner in vitro. The protein hnRNP LL was identified to recognise the i-motif over the hairpin conformation and act as an activating transcription factor...
August 14, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28804614/protective-effect-of-bioactive-compounds-from-echinophora-cinerea-against-cisplatin-induced-oxidative-stress-and-apoptosis-in-the-pc12-cell-line
#11
Yald Shokoohinia, Shekoufeh Khajouei, Farahnaz Ahmadi, Nastaran Ghiasvand, Leila Hosseinzadeh
OBJECTIVES: The present study aims to evaluate the protective effect of the compounds isolated from Echinophora cinerea (E. cinerea) against oxidative stress and apoptosis induced by cisplatin (CIS) in PC12 cells. MATERIALS AND METHODS: Six compounds were isolated as quercetrin-3-O-β-D-glucopyranoside (QUE), osthol (OST), verbenone-5-O-β-D-glycopyranoside (VER), Isoimperatorin (ISO), kaempferol-3-O-β-D-glucopyranoside (KAM), and echinophorin B (ECH). For this study, we used MTT reduction assay for detection of protective effects of isolated compounds on CIS-induced cytotoxicity in PC12 cells...
April 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28801451/adult-high-grade-b-cell-lymphoma-with-burkitt-lymphoma-signature-genomic-features-and-potential-therapeutic-targets
#12
Alyssa Bouska, Chengfeng Bi, Waseem Lone, Weiwei Zhang, Ambreen Kedwaii, Tayla Heavican, Cynthia M Lachel, Jiayu Yu, Roberto Ferro, Nanees Eldorghamy, Timothy C Greiner, Julie Vose, Dennis D Weisenburger, Randy D Gascoyne, Andreas Rosenwald, German Ott, Elias Campo, Lisa M Rimsza, Elaine S Jaffe, Rita M Braziel, Reiner Siebert, Rodney R Miles, Sandeep Dave, Anupama Reddy, Jan Delabie, Louis M Staudt, Joo Y Song, Timothy W McKeithan, Kai Fu, Michael Green, Wing C Chan, Javeed Iqbal
The adult high-grade B-cell lymphomas sharing molecular features with Burkitt lymphoma (BL) are highly aggressive lymphomas with poor clinical outcome. High-resolution structural and functional genomic analysis of adult Burkitt lymphoma (BL) and high-grade B-cell lymphoma with BL gene-signature (adult-mBL), revealed the MYC-ARF-p53 axis as the primary deregulated pathway. Adult-mBL had either unique or more frequent genomic aberrations (del13q14, del17p, gain8q24 and gain18q21) compared with pediatric-mBL, but shared commonly mutated genes...
August 11, 2017: Blood
https://www.readbyqxmd.com/read/28800788/mir-204-regulates-cell-proliferation-and-invasion-by-targeting-ephb2-in-human-cervical-cancer
#13
Shanhong Duan, Ali Wu, Zhengyu Chen, Yarong Yang, Liying Liu, Qi Shu
MicroRNAs (miRNAs) are small non-coding RNAs that involved in human carcinogenesis and progression. miR-204 has been reported to be a tumor suppressor in several cancer types. However, the function and underlying molecular mechanism of miR-204 in cervical cancer (CC) are still unclear. In the present study, the expression level of miR-204 was measured using qRT-PCR method in 30 paired CC clinical samples and 6 CC cell lines. We found that the expression of miR-204 was significantly down-regulated in CC tissues and cell lines compared to normal cervical tissues and cell line...
August 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/28800556/supplementation-of-lycopene-in-maturation-media-improves-bovine-embryo-quality-in%C3%A2-vitro
#14
M M R Chowdhury, Byung-Hyun Choi, Imran Khan, Kyeong-Lim Lee, Ayman Mesalam, Seok-Hwan Song, Lianguang Xu, Myeong-Don Joo, Fahmida Afrin, Il-Keun Kong
This study sought to modulate factors that reduce embryo quality in in vitro culture (IVC) systems. Over eight replicates, 3075 oocytes were cultured in in vitro maturation media containing various concentrations of lycopene, followed by in vitro fertilization and culture. The percentages of MII-stage oocytes, the presumptive zygotes that underwent cleavage and developed into blastocysts were significantly (P < 0.05) higher, the intracellular ROS concentrations reduced significantly (P < 0.05) in oocytes/blastocysts, TUNEL assay demonstrates reduced apoptosis and increased total cell number per blastocyst (P < 0...
August 3, 2017: Theriogenology
https://www.readbyqxmd.com/read/28800008/epstein-barr-virus-infection-can-be-a-secondary-event-in-b-cell-lymphomas-a-review-of-338-cases-and-a-novel-finding-of-zonal-eber-tumor-cells-showing-features-of-progression-from-underlying-ebv-negative-lymphoma
#15
Ira J Miller
Cases of B-cell lymphoma over an 8-year interval with diagnosis of EBER positivity were retrieved from archives and reviewed for classification and pattern of Epstein Barr Virus (EBV) expression. Of 46 cases that were EBV early RNA (EBER)+ by in situ hybridization staining, 7 had nonuniform staining among the neoplastic cells. Four of those cases showed a uniform admixture of EBER+ and EBER- tumor cells, compatible with the prevailing theory of episomal EBV loss with cell replication. Three cases of lymphomas showed a partial and zonal pattern and other features suggest that EBV infection occurred after the lymphoma was already established...
August 9, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28799432/targeted-therapies-in-acute-myeloid-leukemia-a-focus-on-flt-3-inhibitors-and-abt199
#16
Kiran Naqvi, Marina Konopleva, Farhad Ravandi
Acute myeloid leukemia (AML) remains a therapeutic challenge. Despite ongoing research, the standard therapy for AML has not changed significantly in the past four decades. With the identification of cytogenetic and molecular abnormalities, several promising therapeutic agents are currently being investigated. FLT3 mutation is a well-recognized target seen in 30% of the cytogenetically normal AML. More recently, the BCL2 family of anti-apoptotic proteins have also generated great interest as a therapeutic target...
August 11, 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/28797519/treatment-of-acute-myeloid-leukemia-in-the-next-decade-towards-real-time-functional-testing-and-personalized-medicine
#17
REVIEW
Stephen Sze-Yuen Lam, Alex Bai-Liang He, Anskar Yu-Hung Leung
Information arising from next generation sequencing of leukemia genome has shed important light on the heterogeneous and combinatorial driver events in acute myeloid leukemia (AML). It has also provided insight into its intricate signaling pathways operative in the disease pathogenesis. These have also become biomarkers and targets for therapeutic intervention. Emerging evidence from in vitro drug screening has demonstrated its potential value in predicting clinical drug responses in specific AML subtypes. However, the best culture conditions and readouts have yet to be standardized and the drugs included in these screening exercises frequently revised in view of the rapid emergence of new therapeutic agents in the oncology field...
August 4, 2017: Blood Reviews
https://www.readbyqxmd.com/read/28794048/hepatitis-c-virus-core-protein-modulates-endoglin-cd105-signaling-pathway-for-liver-pathogenesis
#18
Young-Chan Kwon, Reina Sasaki, Keith Meyer, Ranjit Ray
Endoglin is part of the TGF-β receptor complex and has a crucial role in fibrogenesis and angiogenesis. It is also an important protein for tumor growth, survival, and cancer cell metastasis. In our previous study, we have shown that hepatitis C virus (HCV) infection induces epithelial-mesenchymal transition state (EMT) and cancer stem-like cell (CSC) properties in human hepatocytes. Our array data suggested that endoglin (CD105) mRNA is significantly upregulated in HCV associated CSCs. In this study, we have observed increased endoglin expression on the cell surface of HCV core expressing hepatocellular carcinoma (HepG2) cell line or immortalized human hepatocytes (IHH) and activation of its downstream signaling molecules...
August 9, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28791386/microrna%C3%A2-630-promotes-cell-proliferation-and-inhibits-apoptosis-in-the-hct116-human-colorectal-cancer-cell-line
#19
Lijuan Zhang, Gang Feng, Xinyan Zhang, Yawen Ding, Xiaojuan Wang
Dysregulation of microRNAs (miRNAs) in colorectal cancer provides important opportunities for the development of future miRNA‑based therapies. The present study aimed to assess the role of miRNA‑630 (miR‑630) expression in colorectal cancer. HCT116 human colorectal cancer cells were transfected with miR‑630 inhibitor, mimic or control miRNA, and the effects of miR‑630 dysregulation on cell viability, proliferation and apoptosis were analyzed using MTT and bromodeoxyuridine assays, and an annexin V‑fluorescein isothiocyanate cell apoptosis kit, respectively...
August 3, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28789447/anti-c-met-antibody-bioconjugated-with-hollow-gold-nanospheres-as-a-novel-nanomaterial-for-targeted-radiation-ablation-of-human-cervical-cancer-cell
#20
Ying Liang, Jiao Liu, Ting Liu, Xingsheng Yang
Radiotherapy is preferred to chemotherapy as an adjuvant therapy for postoperative cervical cancer owing to its convenience and minimal effects on various non-targeted systems. The present study sought to investigate whether the utilization of anti-MET proto-oncogene, receptor tyrosine kinase (c-Met) antibodies conjugated to hollow gold nanospheres (anti-c-Met/HGNs) may enhance the efficiency of radiation therapy for cervical cancer. Anti-c-Met/HGNs were synthesized and confirmed to target c-Met, which was overexpressed on the cell membrane of multiple malignancies...
August 2017: Oncology Letters
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