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Ulcerative Pathogens Among Suspected Monkeypox Virus (MPXV) Patients: A Cross Sectional Study.

MPXV suspected lesions were tested to other ulcerative pathogens in order to detect coinfections and establish an adequate diagnosis. Descriptive retrospective cross-sectional study taken at Centro Sanitario Sandoval, Madrid. Six hundred twenty ulcerative samples were tested by PCR for the main sexually transmitted pathogens including MPXV. A multivariate analysis was carried out to determine factors associated to MPXV. We detected 447 samples positive for MPXV, 38 of them were also positive for some of the other pathogens, mainly herpes simplex virus type 2 (HSV2). In the MPXV samples, 35.3%

Glycosylation profiling of monkeypox virus structural proteins with poly Ser-Arg materials.

Although the glycosylation of viral proteins plays a critical role in the process of viral invasion into host cells, studies on the glycosylation of monkeypox virus (MPXV) structural proteins have not yet been reported. To investigate the importance of MPXV protein glycosylation, poly Ser-Arg (poly SR) materials capable of simultaneously enriching both N-glycopeptides and O-glycopeptides were synthesized by surface-initiated reversible addition-fragmentation chain transfer (SI-RAFT) polymerization. The poly SR materials were evaluated using the digest mixture of standard proteins containing bo…

Repurposing Drugs for Synergistic Combination Therapies to Counteract Monkeypox Virus Tecovirimat Resistance.

The ongoing monkeypox (mpox) disease outbreak has spread to multiple countries in Central Africa and evidence indicates it is driven by a more virulent clade I monkeypox virus (MPXV) strain than the clade II strain associated with the 2022 global mpox outbreak, which led the WHO to declare this mpox outbreak a public health emergency of international concern. The FDA-approved small molecule antiviral tecovirimat (TPOXX) is recommended to treat mpox cases with severe symptoms, but the limited efficacy of TPOXX and the emergence of TPOXX resistant MPXV variants has challenged this medical practi…

Targeting monkeypox virus (MPXV): strategies for molecular docking studies on protein inhibition.

In the year 2022, the outbreak of monkeypox virus (MPXV) occurred in the various countries of Africa, particularly Central and West Africa, North America, South America, Europe, and other countries. Without any delay it spread across more than 100 countries infecting around 116,015 people causing around 255 deaths. Monkeypox is a major public health issue, and it is important to search for new therapeutic approaches. This review article is a review of molecular docking studies to identify possible protein inhibition approaches against Monkeypox virus. The exploration on the molecular architect…

Unveiling Intra-Clonal Diversity of Monkeypox Virus from Brazil's First Outbreak Wave.

The monkeypox virus (MPXV) is an emerging zoonotic pathogen responsible for mpox, a disease characterized by some smallpox-like symptoms, typically mild but occasionally fatal. The largest mpox recorded global outbreak began in May 2022, with over 162,000 cases across 140 countries. Herein, we have analyzed the intra-clonal diversity of MPXV obtained from a single skin lesion sample from a male patient (June 2022). Three viral clones were obtained following phenotypic evaluation of MPXV lysis plaque characteristics over a three-course infection in BSC-40 cells. Unlike the vaccinia virus Wester…

Monkeypox virus infection of human astrocytes causes gasdermin B cleavage and pyroptosis.

Monkeypox virus (MPXV) infections in humans cause neurological disorders while studies of MPXV-infected animals indicate that the virus penetrates the brain. Pyroptosis is an inflammatory type of regulated cell death, resulting from plasma membrane rupture (PMR) due to oligomerization of cleaved gasdermins to cause membrane pore formation. Herein, we investigated the human neural cell tropism of MPXV compared to another orthopoxvirus, vaccinia virus (VACV), as well as its effects on immune responses and cell death. Astrocytes were most permissive to MPXV (and VACV) infections, followed by micr…

Treatment efficacy of cidofovir and brincidofovir against clade II Monkeypox virus isolates.

While historically confined to endemic areas, Monkeypox virus (MPXV) infection has increasingly garnered international attention due to sporadic outbreaks in non-endemic countries in the last two decades and its potential for human-to-human transmission. In 2022, a multi-country outbreak of mpox disease was declared by the World Health Organization (WHO) and nearly 100 000 mpox cases have been reported since the beginning of this pandemic. The clade II variant of the virus appears to be responsible for the vast majority of these infections. While there are no antiviral drugs currently approved…

HIV viral load monitoring during monkeypox virus infection among people with HIV.

OBJECTIVES: Aims of this study were to assess the characteristics of Mpox among people with HIV (PWH) and describe the change of some immune-virological parameters during Mpox virus infection. DESIGN: Case series of PWH diagnosed with Mpox between May and July 2022 at the Infectious Diseases Unit of San Raffaele Scientific Institute, Milan, Italy. METHODS: Real-time PCR was used to detect Mpox virus on oropharyngeal, cutaneous, genital and rectal swabs, plasma, seminal fluids, and urines. The values of the CD4 + lymphocytes and HIV-RNA were assessed both at Mpox diagnosis and after Mpox viro

Computer-assisted drug repurposing for thymidylate kinase drug target in monkeypox virus.

INTRODUCTION: Monkeypox is a zoonotic disease caused by brick-shaped enveloped monkeypox (Mpox) virus that belongs to the family of ancient viruses known as Poxviridae. Subsequently, the viruses have been reported in various countries. The virus is transmitted by respiratory droplets, skin lesions, and infected body fluids. The infected patients experience fluid-filled blisters, maculopapular rash, myalgia, and fever. Due to the lack of effective drugs or vaccines, there is a need to identify the most potent and effective drugs to reduce the spread of monkeypox. The current study aimed to use

Molecular docking of monkeypox (mpox) virus proteinase with FDA approved lead molecules.

BACKGROUND: Monkeypox virus (mpox) disease is caused by a double-stranded DNA virus from the Poxviridae family. The mpox virus showed structural similarity with smallpox virus disease. The recent outbreak of mpox infection in the rest of African countries causes public health issues of increased pandemic potential. Mpox virus is involved in the viral replication cycle through the biocatalytic reaction of precursor polyproteins cleavage. OBJECTIVES: The main objective of the study was to analyze the molecular interactions between mpox and FDA-approved drugs. METHODS: The primary and secondary…

Monkeypox DNA levels correlate with virus infectivity in clinical samples, Israel, 2022.

The current monkeypox virus global spread and lack of data regarding clinical specimens' infectivity call for examining virus infectivity, and whether this correlates with results from PCR, the available diagnostic tool. We show strong correlation between viral DNA amount in clinical specimens and virus infectivity toward BSC-1 cell line. Moreover, we define a PCR threshold value (Cq ≥ 35, ≤ 4,300 DNA copies/mL), corresponding to negative viral cultures, which may assist risk-assessment and decision-making regarding protective-measures and guidelines for patients with monkeypox.

Evaluation and clinical validation of monkeypox (mpox) virus real-time PCR assays.

BACKGROUND: In spring of 2022, an outbreak of monkeypox (mpox) spread worldwide. Here, we describe performance characteristics of monkeypox virus (MPXV)-specific and pan-orthopoxvirus qPCR assays for clinical use. METHODS: We validated probe-based qPCR assays targeting MPXV-specific loci F3L and G2R (genes MPXVgp052/OPG065 and MPXVgp002 and gp190/OPG002, respectively) and a pan-orthopoxvirus assay targeting the E9L locus (MPXVgp057/OPG071). Clinical samples and synthetic controls were extracted using the Roche MP96 or Promega Maxwell 48 instrument. qPCR was performed on the AB7500 thermocycle…

Analgesia during Monkeypox Virus Experimental Challenge Studies in Prairie Dogs (Cynomys ludovicianus).

Because human patients with monkeypox virus (MPXV) infection report painful symptoms, it is reasonable to assume that animals infected with MPXV experience some degree of pain. Understanding whether and how analgesics affect MPXV disease progression is crucial when planning in vivo challenge experiments. In the current study, we challenged prairie dogs with a low dose (4 ×10³ pfu) of MPXV and treated with meloxicam (NSAID) or buprenorphine (opioid); control animals did not receive analgesia or received analgesia without MPXV challenge. Subsets of animals from each group were serially euthanize…

Вирусные транскрипции обезьяны и ответные реакции на хостинг кожи у лиц с вирусом иммунодефицита человека.

Заболевание Mpox, вызванное вирусом обезьяноксина (MPXV), по-прежнему вызывает обеспокоенность в области здравоохранения во всем мире, причем почти половина всех случаев приходится на лиц, инфицированных вирусом иммунодефицита человека (ВИЧ). Несмотря на то, что недавние исследования позволили нам лучше понять, что такое патогенез оксвируса, молекулярное воздействие мпоксиса и инфекции ВИЧ по-прежнему недостаточно изучено. В этом исследовании используется двойная последовательность RNA (RNA-seq) для характеристики экспрессии хостов и вирусных генов в кожном повреждении мазков у людей с мпоксом

Совпадение в аннотации оригинала
BACKGROUND: Mpox disease, caused by the monkeypox virus (MPXV), remains a global health concern with nearly half of all cases occurring among individuals with human immunodeficiency virus (HIV). While recent studies have advanced our understanding of poxvirus pathogenesis, the molecular effects of mpox and HIV coinfection are still poorly understood. This st…