Results 131 to 140 of about 3,987,151 (271)

Evolution of antibiotic resistance at non-lethal drug concentrations

, 2012
Human use of antimicrobials in the clinic, community and agricultural systems has driven selection for resistance in bacteria. Resistance can be selected at antibiotic concentrations that are either lethal or non-lethal, and here we argue that selection ...
Andersson, Dan I,, Hughes, Diarmaid,
core   +1 more source

The evolution of pyrimethamine resistant dhfr in Plasmodium falciparum of south-eastern Tanzania: comparing selection under SP alone vs SP+artesunate combination. [PDF]

, 2011
BACKGROUND\ud \ud Sulphadoxine-pyrimethamine (SP) resistance is now widespread throughout east and southern Africa and artemisinin compounds in combination with synthetic drugs (ACT) are recommended as replacement treatments by the World Health ...
Salim Abdullah, Mutayoba, Ben M, Bloland, Peter, Roper Cally, Malisa, Allen L, Roper, Cally, Allen L Malisa, Abdullah Salim, Cally Roper, Patrick S Kachur, Peter Bloland, Pearce Richard J, Hassan Mshinda, Bloland Peter, Kachur, Patrick S, Mshinda Hassan, Kachur Patrick S, Ben M Mutayoba, Malisa Allen L, Richard J Pearce, Abdullah, Salim, Pearce, Richard J, Mshinda, Hassan, Mutayoba Ben M   +23 more
core   +1 more source

Overcoming Transmission Barriers: A Dual‐Functional Adhesive Hydrogel for Direct Monkeypox Virus Neutralization and Wound Healing

Advanced Science, EarlyView.
MPXV infection leads to persistent viral replication and severe local inflammation, while existing treatments cannot simultaneously remove viruses and repair injured tissue. This study constructs Polymer@mPDA@Gel hydrogel via a two‐step hierarchical assembly method: mPDA anchors photothermal polymers to form antiviral photothermal subunits, which are ...
Ming Zhang, Jiaxin Tian, Xiaolong Zhu, Xiao Li, Xiangshu Qiu, Yuanyuan Li, Ben Zhong Tang, Ning Shi   +7 more
wiley   +1 more source

Is increasing pretreatment HIV drug resistance a real menace or minor detail? [PDF]

The Lancet HIV, 2020
Seth C, Inzaule, Raph L, Hamers, Silvia, Bertagnolio   +2 more
openaire   +2 more sources

GM‐CSF Promotes Neutrophil PD‐L1 Expression Through the VEGFR‐2/STAT6/CSF2 Signaling Axis in Oral Squamous Cell Carcinoma

Advanced Science, EarlyView.
VEGFR‐2 signaling in OSCC activates Src–STAT6‐dependent CSF2 transcription, driving tumor‐derived GM‐CSF secretion. GM‐CSF programs neutrophils to express PD‐L1 through STAT5–mTOR/S6K signaling, suppressing cytotoxic CD8+ T cells. This pathway reveals a tumor–neutrophil immune checkpoint circuit that limits anti‐PD‐1 responsiveness in OSCC.
Fangxing Zhu, Yuanhe You, Yiyi Zhang, Yibin Dai, Xinyu Zhou, Yong Fu, Xi Lu, Yingying Huang, Zhihang Zhou, Ronghui Xia, Wutong Ju, Zhaoqi Yuan, Laiping Zhong, Tongchao Zhao   +13 more
wiley   +1 more source

METTL7A Downregulation Drives SLC1A5‐Mediated Glutamine Competition to Promote Tumor Proliferation and Suppress CD8+ T Cell Immunity in Gastric Cancer

Advanced Science, EarlyView.
GC cells enhance glutamine accumulation by upregulating SLC1A5 expression. This upregulation not only boosts GC cell proliferation, but also outcompetes CD8+ T cells for glutamine and suppresses their antitumor immunity. Mechanistically, METTL7A deficiency in GC induces SLC1A5 overexpression via an m6A‐dependent pathway and N‐glycosylation ...
Mingjun Sun, Shuwei Dang, Dazhi Zhou, Lixian Ding, Xun Sun, Wei Suo, Jirui Niu, Qingzhu Yang, Zhicheng Zhang, Yanyan Sun, Jinxing Li, Zhongsheng Chen, Tao Ban, Yingji Wang, Tianzhu Li, Ming Liu, Guodong Li   +16 more
wiley   +1 more source

Nanoparticle‐Mediated TIPE1 mRNA Delivery Enhances Paclitaxel Sensitivity in Triple‐Negative Breast Cancer by Modulating RAB7A Ubiquitination‐Associated Stability and Autophagy

Advanced Science, EarlyView.
TIPE1m NPs nanoparticles restore TIPE1 expression, promote RAB7A ubiquitination and degradation, suppress autophagic flux, and resensitize paclitaxel‐resistant triple‐negative breast cancer to therapy. ABSTRACT Acquired paclitaxel (PTX) resistance remains a major obstacle in triple‐negative breast cancer (TNBC) treatment.
Wei Hu, Qishuai Chen, Yan Ma, Yang Liu, Xianing Dong, Wenjuan Wei, Jianxin Du, Shusheng Qiu, Maojin Tian, Peiqing Zhao   +9 more
wiley   +1 more source

Cold atmospheric plasma restores fulvestrant sensitivity by inhibiting CCND3 in the drug-resistant breast cancer cells

Scientific Reports
Cold atmospheric plasma (CAP) has demonstrated anti-proliferative activity in various cancer cells, yet its efficacy against drug-resistant cancer cells remains largely unexplored.
Sooseong Choi, Sanghyun Jung, Hyeon Woo Kim, Hyeonjin Lee, Siyeon Jang, Minjae Baek, Seung-Hoon Yang, Eun Ha Choi, Sun Jung Kim   +8 more
doaj   +1 more source

Pretreatment and Acquired Drug Resistance in Children With Human Immunodeficiency Virus Type 1 in Jos, Nigeria

Open Forum Infectious Diseases
Abstract We determined pretreatment and acquired human immunodeficiency virus (HIV) drug resistance among children with HIV type 1 (HIV-1) in Jos, Nigeria. The majority (71%) of those who failed first-line antiretroviral therapy were on a nevirapine-containing regimen.
Augustine O Ebonyi, Jonathan Okpokwu, Holly Rawizza, Philippe Chebu, Beth Chaplin, Donald Hamel, Stephen Oguche, Oche O Agbaji, Atiene S Sagay, Phyllis J Kanki, Godwin E Imade   +10 more
openaire   +2 more sources

Ferroptosis Suppression by the M6A Reader IGF2BP1 Underlies Gemcitabine Resistance in Pancreatic Ductal Adenocarcinoma

Advanced Science, EarlyView.
IGF2BP1 promotes gemcitabine resistance in pancreatic cancer by stabilizing m6A‐modified FTH1 transcripts and protecting them in stress granules, thereby suppressing ferroptosis. Pharmacological inhibition of IGF2BP1 disrupts this protective pathway, restores ferroptotic sensitivity, and enhances gemcitabine efficacy in resistant tumors.
Ying‐Qin Zhu, Yue Huang, Jing‐Yuan Ye, Si‐Yuan Lu, Zhi‐De Liu, Ming‐Jian Ma, De‐Liang Fang, Zi‐Yi Zhao, Jin‐Zhao Xie, Jiao Chen, Xiao‐Yu Yin   +10 more
wiley   +1 more source