Breaking News
June 23, 2018 - Coconut oil diet increases vitality, lifespan of fruit flies with peroxisomal disorder
June 23, 2018 - Jumping genes or transposons and their role in the genetic code
June 23, 2018 - The Current issue of “The view from here” is concerned with Therapeutics
June 23, 2018 - Abnormal lipid metabolism in fat cells predicts future weight gain and diabetes in women
June 23, 2018 - Alcohol problems linked to sex without condom use among black gay men
June 23, 2018 - DNA patterns in circulating blood cells can help identify spastic cerebral palsy
June 23, 2018 - Unsubstantiated health claims widespread within weight loss industry
June 23, 2018 - FDA grants marketing authorization for use of two catheter-based devices in hemodialysis patients
June 23, 2018 - An ingrown toenail not the same as a bypass
June 23, 2018 - Study suggests proteinuria lowering as important target in managing pediatric CKD
June 23, 2018 - FDA Alert: Kratom (mitragyna speciosa) powder products by Gaia Ethnobotanical: Recall
June 23, 2018 - CDC chief asks for, and gets, cut to his record $375K pay
June 22, 2018 - Novel cellular pathway may clarify how arterial inflammation develops into atherosclerosis
June 22, 2018 - Pioneering exercise program improves physical, mental health of elderly people living in care homes
June 22, 2018 - Rutgers Cancer Institute educates childhood cancer survivors about late effects of treatment
June 22, 2018 - Study tests accuracy of device designed to detect heart dysfunction in childhood cancer survivors
June 22, 2018 - Study links annual haze with increased hospitalizations for respiratory problems
June 22, 2018 - Robotic surgery appears to be as effective as open surgery in treating bladder cancer
June 22, 2018 - Many Drugs Made Available Via FDA Expanded Access Programs
June 22, 2018 - Normal eye dominance is not necessary for restoring visual acuity in amblyopia
June 22, 2018 - Parent-Child Interaction Therapy can reduce depression rates in children
June 22, 2018 - Study provides insights into how components of different cells in the brain are altered
June 22, 2018 - Research does not confirm antidiabetic action of natural fatty acid derivatives
June 22, 2018 - Oxidative stress can be used against tumors to treat cancer
June 22, 2018 - Simple, cost-effective test may help improve early diagnosis of mild cognitive impairment
June 22, 2018 - New guide published to help battle fatal disease caused by kissing bugs
June 22, 2018 - Stigma Adds to Burden of Type 1 Diabetes
June 22, 2018 - In retinoblastoma survivors, oculo-visual issues tied to QoL
June 22, 2018 - Most adults with allergies do not use prescribed epinephrine even in emergency situations
June 22, 2018 - Study provides clues to how cancer cells develop resistance to chemotherapies
June 22, 2018 - New consensus paper serves as basis for uniform medical management of DSD
June 22, 2018 - Researchers work to identify areas of the brain that help us wake up
June 22, 2018 - Alcohol hangovers more significant and costly than people realize, shows research
June 22, 2018 - Targeting cells involved in blood vessel formation could hinder brain tumor growth
June 22, 2018 - Young cancer survivors need more support as they feel dissatisfied with their sexuality
June 22, 2018 - Unusual cell-to-cell communication in glioblastoma promotes aggressiveness and therapy resistance
June 22, 2018 - Turning A Phage – Drug Discovery Today
June 22, 2018 - World-first study links birth interventions and long-term childhood illness
June 22, 2018 - Improving the quality of biomedical research samples
June 22, 2018 - Researchers identify cerebral palsy using AI and DNA sequencing
June 22, 2018 - Administering nitric oxide gas after heart surgery may decrease risk of kidney problems
June 22, 2018 - Measuring levels of ethyl sulphate in hair can help assess alcohol consumption
June 22, 2018 - Researchers develop robot bloodhound that can rapidly detect odors on the ground
June 22, 2018 - AAA doses first patients in two clinical studies with PSMA-R2 for prostate cancer
June 22, 2018 - LSTM led consortium receives grant to investigate how human behavior impacts AMR
June 22, 2018 - Researchers discover drug compound that inhibits movement of cancer cells
June 22, 2018 - Normalization of ‘plus-size’ body shapes may prevent recognition of health risks of obesity
June 22, 2018 - UC San Diego launches new bacteriophage therapy center
June 22, 2018 - New review outlines current state of sex-sensitive issues linked to heart failure drugs
June 22, 2018 - Pelvic pain a major issue for women nearing mid-life, research reveals
June 22, 2018 - Researchers develop reliable DNA barcodes for biomedical research
June 22, 2018 - New risk-prediction model may help identify diabetic patients at high risk of pancreatic cancer
June 22, 2018 - Study reveals how mTORC1-driven changes in crowding could influence major diseases
June 22, 2018 - Researchers uncover new therapeutic opportunity in the treatment of malignant melanoma
June 22, 2018 - UC Riverside researcher receives grants to advance cancer, ALS research
June 22, 2018 - Radiation therapy alone may be enough to treat older, sicker patients with anal cancers
June 22, 2018 - Technical report describes how to make accurate particle size measurements on carbon black samples
June 22, 2018 - Nocdurna (desmopressin acetate) Approved by FDA as First Sublingual Tablet to Treat Nocturia due to Nocturnal Polyuria
June 22, 2018 - Neuroscientists locate neurons in the brain that respond when a visual target is found
June 22, 2018 - First human Keystone virus infection reported
June 22, 2018 - New study reveals how ‘good’ bacteria help in regulating our metabolism
June 22, 2018 - Osteopathic manual therapy affecting the diaphragm improves chronic low back pain
June 22, 2018 - Researchers create revolutionary model to study pulmonary diseases
June 22, 2018 - Diagnosing Heart Disease Using AI
June 22, 2018 - Increasing biodefense risks posed by synthetic biology
June 22, 2018 - Many Women Report Vasomotor Symptoms in Their 60s
June 22, 2018 - Rare mutation of gene carried by Quebec family gives insight into how the brain is wired
June 22, 2018 - Chemists find new way to make enzymes do a non-natural reaction
June 22, 2018 - Summer is good time to check for signs of skin cancer
June 22, 2018 - Innovative method can help identify patients with spastic cerebral palsy
June 22, 2018 - Exercise alters characteristics of blood to reduce inflammation in obese people
June 22, 2018 - Researchers examine complications across different types of breast reconstructive surgeries
June 22, 2018 - Rhesus macaque model could be useful to test therapies for congenital Zika virus syndrome
June 22, 2018 - AHA: New Insights Into Sickle Cell and Stroke Risk
June 22, 2018 - Doctors prescribe opioids at high rates to those at increased overdose risk
June 22, 2018 - Reduction in US cigarette smoking rates
June 22, 2018 - Preconception binge drinking may have negative effect on future offspring
June 22, 2018 - FDA expands approval of novel diabetes management device to include younger pediatric patients
June 22, 2018 - Researchers confirm weight loss benefits of the 16:8 diet
June 22, 2018 - FDA approves Eversense CGM system for use in adults with diabetes
The EV71 Virus May Use a Human Protein to Aid Infection

The EV71 Virus May Use a Human Protein to Aid Infection

image_pdfDownload PDFimage_print

A new study suggests that the human protein, prohibitin, may be used by the EV71 virus to enter motor neuron cells and cause the neurological complications of hand, foot and mouth disease.

Credit: Kateryna Kon/Shutterstock

Enterovirus 71 (EV71) is one of the viruses known to cause hand, foot and mouth disease in humans. As it is closely related to poliovirus, EV71 has been the focus of much research.

Although hand, foot, and mouth disease typically presents with mild symptoms of skin rash and fever, sometimes it can develop into a more severe, life-threatening condition.

These severe neurological complications can have serious effects, including brainstem encephalitis, acute flaccid paralysis, pulmonary oedema and cardiopulmonary failure. In some cases, infection of the nervous system by EV71 can cause long term neurologic and psychiatric disorders.

Since there are currently no effective prophylactic or therapeutic agents against EV71, there has been a keen interest in determining how EV71 achieves its neurological effects.

To determine the molecular mechanisms used in EV71 infection, researchers at the National University of Singapore analysed the proteins present in human cells infected with EV71.

Further analyses were conducted on proteins whose levels were found to change during infection with EV71. These included inactivating the genes encoding the target proteins prior to infection with EV71.

It appeared that the human protein prohibitin (PHB) was needed by EV71 in order to enter motor neuron cells. Prohibitin is associated with a vast array of functions, such as regulation of proliferation, apoptosis, transcription, mitochondrial protein folding, and as a cell-surface receptor.

The researchers demonstrated that prohibitin is present on the surface of motor neuron cells and used by the EV71 virus to gain access to motor neurone cells. Once inside the cell, EV71 uses mitochondrial prohibitin to obtain the energy required to replicate and cause further infection.

A current anti-cancer drug, rocaglamide, is known to inhibit the activity of prohibitin. The researchers therefore tested whether rocaglamide had any effect on the infection of neuronal cells with EV71.

Rocaglamide was found to significantly reduce levels of the virus in neuronal cells compared with untreated cells. In addition, administration of rocaglamide prolonged the life of mice infected with EV71 and reduced the amount of virus present in their spinal cord and brain compared with untreated, EV71-infected mice.

The researchers commented, “This study identifies prohibitin as the first host factor that is specifically involved in EV71 infection of the CNS. Prohibitin is a druggable target (targeted by rocaglamide) and as such, it is hoped that our work paves the way towards an effective treatment able to prevent the neurological complications associated with EV71 infections.”

It is hoped that treatment with rocaglamide may help prevent or limit the neurological complications of EV71 infection.

This research also opens up the possibility of developing new treatments for EV71 infection that target prohibitin. Further studies are required to explore the potential of anti-prohibitin treatments in the management of EV71 infection.

Tagged with:

About author

Related Articles