Breaking News
December 16, 2018 - Sex work criminalization linked to incidences of violence finds study
December 16, 2018 - Johns Hopkins researchers discover swarming behavior in fish-dwelling parasite
December 16, 2018 - Schistosomiasis prevention and treatment could help control HIV
December 16, 2018 - Early postpartum opioids linked with persistent usage
December 16, 2018 - Johns Hopkins researchers identify molecular causes of necrotizing enterocolitis in preemies
December 16, 2018 - Advanced illumination expands capabilities of light-sheet microscopy
December 16, 2018 - Alzheimer’s could possibly be spread via contaminated neurosurgery
December 16, 2018 - Unraveling the complexity of cancer biology can prompt new avenues for drug development
December 16, 2018 - Inflammatory Bowel Disease, Prostate Cancer Linked
December 16, 2018 - Cannabis youth prevention strategy should target mental wellbeing
December 15, 2018 - Recent developments and challenges in hMAT inhibitors
December 15, 2018 - Sewage bacteria found lurking in Hudson River sediments
December 15, 2018 - CDC selects UMass Amherst biostatistician model that helps predict influenza outbreaks
December 15, 2018 - Researchers reveal brain mechanism that drives itch-evoked scratching behavior
December 15, 2018 - New computer model helps predict course of the disease in prostate cancer patients
December 15, 2018 - Obesity to Blame for Almost 1 in 25 Cancers Worldwide
December 15, 2018 - How the brain tells you to scratch that itch
December 15, 2018 - New findings could help develop new immunotherapies against cancer
December 15, 2018 - World’s largest AI-powered medical research network launched by OWKIN
December 15, 2018 - Young people suffering chronic pain battle isolation and stigma as they struggle to forge their identities
December 15, 2018 - Lifespan extension at low temperatures depends on individual’s genes, study shows
December 15, 2018 - New ingestible capsule can be controlled using Bluetooth wireless technology
December 15, 2018 - Researchers uncover microRNAs involved in the control of social behavior
December 15, 2018 - Research offers hope for patients with serious bone marrow cancer
December 15, 2018 - Link between poverty and obesity is only about 30 years old, study shows
December 15, 2018 - Mass spectrometry throws light on old case of intentional heavy metal poisoning
December 15, 2018 - BeyondSpring Announces Phase 3 Study 105 of its Lead Asset Plinabulin for Chemotherapy-Induced Neutropenia Meets Primary Endpoint at Interim Analysis
December 15, 2018 - Study finds that in treating obesity, one size does not fit all
December 15, 2018 - Tenacity and flexibility help maintain psychological well-being, mobility in older people
December 15, 2018 - Study reveals role of brain mechanism in memory recall
December 15, 2018 - High levels of oxygen encourage the brain to remain in deep, restorative sleep
December 15, 2018 - Experimental HIV vaccine strategy works in non-human primates, research shows
December 15, 2018 - Genetically modified pigs could limit replication of classical swine fever virus, study shows
December 15, 2018 - FDA Approves Herzuma (trastuzumab-pkrb), a Biosimilar to Herceptin
December 15, 2018 - Cost and weight-loss potential matter most to bariatric surgery patients
December 15, 2018 - Cancer Research UK and AstraZeneca open new Functional Genomics Centre
December 15, 2018 - New research lays out potential path for treatment of Huntington’s disease
December 15, 2018 - Prestigious R&D 100 Award presented to Leica Microsystems
December 15, 2018 - Study shows septin proteins detect and kill gut pathogen, Shigella
December 15, 2018 - Study sheds new light on disease-spreading mosquitoes
December 15, 2018 - 2017 Saw Slowing in National Health Care Spending
December 15, 2018 - Monitoring movement reflects efficacy of mandibular splint
December 15, 2018 - Study supports BMI as useful tool for assessing obesity and health
December 15, 2018 - Self-guided, internet-based therapy platforms effectively reduce depression
December 15, 2018 - Organically farmed food has bigger climate impact than conventional food production
December 15, 2018 - Faster, cheaper test has potential to enhance prostate cancer evaluation
December 15, 2018 - Researchers study abnormal blood glucose levels of patients after hospital discharge
December 15, 2018 - Swedish scientists explore direct association of dementia and ischemic stroke deaths
December 15, 2018 - Study finds 117% increase in number of dementia sufferers in 26 years
December 15, 2018 - Eczema Can Drive People to Thoughts of Suicide: Study
December 15, 2018 - Link between neonatal vitamin D deficiency and schizophrenia confirmed
December 15, 2018 - Nurse denied life insurance because she carries naloxone
December 15, 2018 - Ritalin drug affects organization of pathways that build brain networks used in attention, learning
December 15, 2018 - Research pinpoints two proteins involved in creation of stem cells
December 15, 2018 - Gut bacteria may modify effectiveness of anti-diabetes drugs
December 15, 2018 - A new type of ‘painless’ adhesive for biomedical applications
December 15, 2018 - Early physical therapy associated with reduction in opioid use
December 15, 2018 - Breast cancer protection from pregnancy begins many decades later, study finds
December 15, 2018 - How often pregnant women follow food avoidance strategy to prevent allergy in offspring?
December 15, 2018 - Using machine learning to predict risk of developing life-threatening infections
December 15, 2018 - How imaginary friends could boost children’s development
December 15, 2018 - Folate deficiency creates more damaging chromosomal abnormalities than previously known
December 15, 2018 - Study provides new insights into molecular mechanisms underlying role of amyloid in Alzheimer’s disease
December 15, 2018 - For the asking, a check is in the mail to help pay for costly drugs
December 15, 2018 - UA scientists uncover biological processes leading to rare brain disorder in babies
December 15, 2018 - The largest database on industrial poisons
December 15, 2018 - ESMO Immuno-Oncology Congress showcases novel technologies set to benefit many cancer patients
December 15, 2018 - Ovid Therapeutics Announces Plans to Move into a Phase 3 Trial in Pediatric Patients Based on End-of-Phase 2 Meeting for OV101 in Angelman Syndrome
December 15, 2018 - Left ventricular noncompaction – Genetics Home Reference
December 15, 2018 - Children’s sleep not significantly affected by screen time, new study finds
December 15, 2018 - When should dementia patients stop driving? A new guidance for clinicians
December 15, 2018 - Researchers use INTEGRA’s VIAFLO 96/384 to streamline the experimental workflow
December 15, 2018 - Researchers discover protein involved in nematode stress response
December 15, 2018 - Cancer patients have greater risk of developing shingles, study shows
December 14, 2018 - UAlberta scientists identify biomarkers for detecting Alzheimer’s disease in saliva samples
December 14, 2018 - Study uncovers link between tube travel and spread of flu-like illnesses
December 14, 2018 - Caffeine plus another compound in coffee may fight Parkinson’s disease
December 14, 2018 - GW researchers review studies on treatments for prurigo nodularis
December 14, 2018 - Lack of peds preventive care ups unplanned hospital admissions
December 14, 2018 - Miscarriage: When Language Deepens Pain
Wilms tumor – Genetics Home Reference

Wilms tumor – Genetics Home Reference

image_pdfDownload PDFimage_print

Changes in any of several genes are involved in the formation of Wilms tumor. Wilms tumor is often associated with mutations in the WT1 gene, CTNNB1 gene, or AMER1 gene. These genes provide instructions for making proteins that regulate gene activity and promote the growth and division (proliferation) of cells. WT1, CTNNB1, and AMER1 gene mutations all lead to the unchecked proliferation of cells, allowing tumor development.

Changes on the short (p) arm of chromosome 11 are also associated with developing Wilms tumor. Two genes in this area, IGF2 and H19, are either turned on or off depending on whether the copy of the gene was inherited from the mother or the father. This parent-specific difference in gene activation is a phenomenon called genomic imprinting. In some cases of Wilms tumor, abnormalities in the process of genomic imprinting on chromosome 11 lead to a loss of H19 gene activity and increased activity of the IGF2 gene in kidney cells. The resulting loss of H19 gene activity, which normally restrains cell growth, and increase in IGF2 gene activity, which promotes cell growth, together lead to uncontrolled cell growth and tumor development in people with Wilms tumor.

In most cases of Wilms tumors involving one kidney and nearly all cases involving both kidneys, the tumors are thought to arise from immature kidney tissue that never developed properly. These immature tissues are known as nephrogenic rests. It is likely that genetic changes are involved in the presence of nephrogenic rests and that additional genetic changes trigger nephrogenic rests to develop into a tumor.

Genetic conditions that share a genetic cause with Wilms tumor can also have this cancer as a feature. These conditions include WAGR syndrome, Denys-Drash syndrome, and Frasier syndrome, which are caused by mutations in the WT1 gene. Wilms tumor has also been seen in individuals with Beckwith-Wiedemann syndrome, which can be caused by changes in the genomic imprinting of the IGF2 and H19 genes. Wilms tumor can be a feature of other genetic conditions caused by mutations in other genes.

Many children with Wilms tumor do not have identified mutations in any of the known genes. In these cases, the cause of the condition is unknown. It is likely that other, unknown genes are also associated with the development of Wilms tumor.

Tagged with:

About author

Related Articles