Showing posts with label cancer. Show all posts
Showing posts with label cancer. Show all posts

Tuesday, January 12, 2016

Cancer Research:Early trial shows injectable agent illuminates cancer during surgery ♦ Painkiller tapped to become future cancer-killer ♦ Potential therapy targets for triple-negative breast cancer

Early trial shows injectable agent illuminates cancer during surgery A new injectable agent has been tested that causes cancer cells in a tumor to fluoresce, potentially increasing a surgeon's ability to locate and remove all of a cancerous tumor on the first attempt.
Unusual drug target, drug generate exciting preclinical results in mouse models of metastatic breast cancer A doctor treating a patient with a potentially fatal metastatic breast tumor would be very pleased to find, after administering a round of treatment, that the primary tumor had undergone a change in character – from aggressive to static, and no longer shedding cells that can colonize distant organs of the body. Indeed, most patients with breast and other forms of cancer who succumb to the illness do so because of the cancer’s unstoppable spread.
Painkiller tapped to become future cancer-killer Diclofenac, a common painkiller, has significant anti-cancer properties, according to researchers. Like other drugs examined by the ReDO project, diclofenac is cheap and readily accessible -- and as it's already present in many medicine cabinets, it has been carefully tested.
Study reveals potential therapy targets for triple-negative breast cancer In cancer, cell signaling pathways are the critical chain of events that can either quash or quicken disease progression. A new study has revealed new information about how molecules called long non-coding RNAs (lncRNA) interact with HIF-1, a signaling pathway that is overexpressed in many cancers. HIF-1 has been shown to regulate breast cancer progression.

Saturday, January 2, 2016

Cancer Research:Breast cancer detection rate using ultrasound is shown to be comparable to mammography ♦ New method for better treatment of breast cancer ♦ New target for potential blood cancer treatment

Simple shell of plant virus sparks immune response against cancer Shells of cowpea mosaic virus inhaled into a lung tumor or injected into ovarian, colon or breast tumors, not only triggered the immune system in mice to wipe out the tumors, but provides systemic protection against metastases.
New target for potential blood cancer treatment Mutations present in a blood cancer known as follicular lymphoma have revealed new molecular targets for potential treatments, according to researchers
New method for better treatment of breast cancer A novel imaging-based method for defining appropriateness of breast cancer treatment is as accurate as the current standard-of-care and could reduce the need for invasive tissue sampling, new research shows. The results suggest that the method might lead to more optimal treatment of individual patients
Breast cancer detection rate using ultrasound is shown to be comparable to mammography The use of ultrasound in detecting breast cancer has been shown to be comparable in its sensitivity to that of mammography and should be considered when testing for the disease.

Friday, December 18, 2015

Cancer Research: Probing the mystery of how cancer cells die ♦ Scientists uncover process that could drive the majority of cancers ♦ Novel strategy to target cancer-causing protein

Research reveals promising novel strategy to target cancer-causing protein The mechanism by which tumor cells elevated levels of MDM4, a protein that is highly expressed in cancer cells but not in normal adult tissues, has been revealed by researchers. The team has also found that the mechanism can be interfered with antisense oligonucleotides to suppress cancer growth.

Cancer: Pinpoint targeting instead of shotgun approach, say experts Integrins help cells communicate with and adapt to their environment. Also cancer cells depend on their properties to survive and spread throughout the body. Now scientists have successfully developed a small, highly active molecule that binds to a specific integrin that operates in many types of cancer. In the future it may allow patient-specific diagnoses and subsequent targeted treatment of tumor cells

Probing the mystery of how cancer cells die The role sphingolipids play in the death of cancer cells is now better understood, thanks to a recent study. The research traces how levels of various sphingolipids spike inside cancer cells when the cells are undergoing a highly organized form of cellular death called apoptosis.

Scientists uncover process that could drive the majority of cancers in The gene p53 has been described as the 'guardian of the genome' due to its prominent role preventing genetic mutations. More than half of all cancers are thought to originate from p53 mutations or loss of function, and now a recent study explains why.

Wednesday, December 16, 2015

Cancer Research:Survival rates for patients with prostate cancer better ♦ Preoperative use of blood-thinning drugs is safe for cancer patients ♦ Study uncovers hard-to-detect cancer mutations

Study uncovers hard-to-detect cancer mutations Current approaches to genome analysis systematically miss detecting a certain type of complex mutation in cancer patients' tumors, new research shows. Further, a significant percentage of these complex mutations are found in well-known cancer genes that could be targeted by existing drugs, potentially expanding the number of cancer patients who may benefit.
Experimental drugs that change energy supply in cells could slow brain tumor growth Experimental drugs that alter cell metabolism also halted tumor growth and extended survival in mice with cancers linked to changes in the same gene.
Preoperative use of blood-thinning drugs is safe for cancer patients Among patients undergoing major cancer operations, the preoperative use of blood-thinning drugs such as heparin does not increase rates of major bleeding or transfusions, and is associated with a decreased risk of blood clots.
Survival rates for patients with prostate cancer better with surgery versus radiotherapy A rigorous evaluation of survival rates has shown that cancer patients with localised prostate cancer -- the most common form of prostate cancer -- have a better chance of survival if treated by surgery than by radiotherapy. This is the most robust analysis (meta-analysis) to date of published literature comparing surgery and radiotherapy for localized prostate cancer

Wednesday, December 9, 2015

Cancer Research: Chasing invasive cancer cells with a laser ♦ Tiny drug-laden 'popping bubbles' lead triple attack treatment for liver cancer

Chasing invasive cancer cells with a laser What makes invasive cancer cells behave differently than the other cells in the tumor from which they arise? Let's turn them red with a laser and find out.
Tiny drug-laden 'popping bubbles' lead triple attack treatment for liver cancer A novel method for repositioning an FDA-approved anti-cancer compound has been discovered, which allows it to specifically target liver cancer tumors. A 'triple attack' technique combining chemotherapy, thermal ablation, and hyperthermia provided a highly targeted, yet minimally invasive approach.
Gene that protects breast cancer patients against 'chemo brain' discovered Variation of a gene may have a role in protecting cancer patients from developing chemotherapy-induced cognitive impairment, commonly known as ‘chemo fog’ or ‘chemo brain,’.
Experimental 'urban garden' helps cancer survivors' lower risk for recurrence, chronic illness While there is substantial evidence that diet and body weight can impact cancer development, recurrence, and progression – for the estimated 14.5 million cancer survivors in the US, there are few resources available to help them optimize their dietary patterns and lifestyle behaviors after active cancer treatment is over.Cancer survivors who participated in a multifaceted urban garden intervention improved their health behaviors, significantly reduced their weight, and improved biomarkers of health – all major improvements related to a reduced risk for developing a secondary cancer or illnesses like diabetes or heart disease.

Children's Health: New hope for children with cancer ♦ Children with common allergies have twice heart disease risk ♦ 3/4 of high school heroin users started with prescription opioids

Discovery of X-linked intellectual disability syndrome is aided by web tools It's a genetic detective story with a distinct 21st-century flavor. A geneticist has used powerful internet and social media tools to find doctors and researchers in nine US states and eight other nations to help him confirm, document and describe in precise clinical detail a new X-linked intellectual disability genetic syndrome in young boys that he first came across five years ago.
3/4 of high school heroin users started with prescription opioids The linkages between nonmedical use of opioids and heroin in high school seniors examined associations between frequency and recency of nonmedical use of opioids and heroin.
New hope for children with cancer Children suffering from a cancer of the nervous system could benefit from a potential new treatment

Children with common allergies have twice heart disease risk Children with allergies, particularly asthma and hay fever, have about twice the rate of high blood pressure and high cholesterol, setting them on a course for heart disease at a surprisingly early age. Even when the study controlled for obesity, children with allergic disease had a much higher risk. These children need to be screened more aggressively for high cholesterol and high blood pressure, so they can modify their lifestyles and reverse this risk.

Tuesday, December 8, 2015

Cancer Research:'Master switch' helps cancer cells survive stress ♦ Making cancer care personal ♦ Spreading cancer cells must change their environment to grow

Breast screening program found to be effective in preventing some invasive cancers Screening for and treatment of an early form of breast cancer has been found to prevent subsequent invasive cancer.
'Master switch' helps cancer cells survive stress Scientists have discovered a 'master switch' within cancer cells that seems to override the normal stress response and allows them to survive conditions that would normally be lethal. The mechanism could be critical in allowing cancer cells to withstand the huge amounts of stress they come under as they divide rapidly and their metabolism goes into overdrive.
Spreading cancer cells must change their environment to grow Spreading cancer cells arriving in a new part of the body must be able to change their new environment to continue to grow.
Making cancer care personal Researchers are partnering with a private company to develop computer simulations that can help personalize cancer care by predicting how a patient will respond to a drug treatment.

Sunday, December 6, 2015

Cancer Research: How to wake a sleeping cancer cell, and why you might want to ♦ Can cancer itself damage the heart? ♦ Cells implicated with breast cancer-derived brain tumors

Can cancer itself damage the heart? Both treated and untreated cancer patients showed impaired heart function, report researchers at the end of a study. The finding raises the possibility that cancer itself may damage heart muscle irrespective of exposure to cancer drug therapies
New class of inhibitory compounds developed to aid melanoma treatments A pharmacology researcher has helped create a class of inhibitory compounds that can strongly enhance the effect of anti-tumor drugs for melanoma.
Researchers isolate cells implicated with breast cancer-derived brain tumors Researchers have isolated genetic signatures of some circulating tumor cells found in breast cancer, which one day may lead to a preventive treatment for metastatic cancer cells
How to wake a sleeping cancer cell, and why you might want to Cancer cells that lie 'snoozing' in the skeleton can be awakened by changes in the bone that surrounds them, scientists have shown. In a world first, researchers have used state-of-the-art microscopy techniques to watch cancer cells sleep within living bone over a period of months. They show that cancer cells can be 'woken up' when bone tissue is broken down around them, suggesting new possibilities for treating metastatic cancer in bone.

Friday, December 4, 2015

Cancer Research: Antibody to save cancerous bones ♦ Better understanding of cancer-spreading enzymes ♦ Survival has improved for stage IV breast cancer

New studies create better understanding of cancer-spreading enzymes A detailed structural view of an enzyme, called MMP7, has been revealed as it binds to the membranes, or surfaces, of cancer cells. This understanding could lead to better treatments.
Survival has improved for women with stage IV breast cancer  study that included more than 20,000 women with stage IV breast cancer finds that survival has improved and is increasingly of prolonged duration, particularly for some women undergoing initial breast surgery.
Antibody developed to save cancerous bones Osteosarcoma (OS) is a rare cancer most often affecting adolescents and children. While most bone cancers have their origin in other body tissues and spread to the bones through metastases, OS originates in the bone tissue. Researchers now show that OS cells degrade the bone tissue through a completely different process than metastasized bone cancer. Through treatment with a specific antibody, the researchers blocked the process and reduced up to 80 percent of bone degradation in a cancer model
False-positive mammograms may indicate increased risk of breast cancer later Women with a history of a false-positive mammogram result may be at increased risk of developing breast cancer for up to 10 years after the false-positive result.

Thursday, December 3, 2015

Cancer Research: Scientists put final pieces into place for seeing cancer with protons ♦ Stopping ovarian cancer in its tracks ♦ Discovery of an embryonic switch for cancer stem cell generation ♦

Stopping ovarian cancer in its tracks: Antibody may help patients heal themselves In a first, researchers show the potential a PD-1 antibody, nivolumab, has in fighting the disease. Nivolumab, an inhibitory antibody for PD-1, has shown efficacy in several types of malignancies including melanoma, kidney cancer, and non-small cell lung cancer.
Scientists put final pieces into place for seeing cancer with protons Scientists are currently in South Africa putting together a unique medical imaging platform which could improve treatment for millions of cancer sufferers by making proton therapy a viable option
Lower survival rates in women with breast cancer diagnosed with depression Women with breast cancer who subsequently had a recorded diagnosis of depression had a 45% higher risk of death from all cause. The researchers suggest this finding could help to target and support those women most at risk of depression
Discovery of an embryonic switch for cancer stem cell generation Decreases in a specific group of proteins trigger changes in the cancer microenvironment that accelerate growth and development of therapy-resistant cancer stem cells.

Wednesday, December 2, 2015

Cancer Research:New gene map reveals cancer's Achilles heel ♦ Cognitive-behavioral stress management in breast cancer ♦ Breast MRI after mammography may identify additional aggressive cancers

Breast MRI after mammography may identify additional aggressive cancers Additional breast cancers found with MRI are sometimes larger and potentially more aggressive than those found on mammography.In some cases MRI findings of additional cancers not seen on mammography may necessitate a change in treatment.
New gene map reveals cancer's Achilles heel Scientists have mapped out the genes that keep our cells alive, creating a long-awaited foothold for understanding how our genome works and which genes are crucial in disease like cancer.
Unassuming 'Swiss Army knife'-like protein key to new cancer drug's therapeutic action When preliminary tests show that a new drug has remarkable effectiveness against a lethal illness, everyone wants to know how it works. A team reports a surprising mechanism through which an important new drug against leukemia, JQ1, exerts its therapeutic effect.
Cognitive-behavioral stress management in breast cancer Women who were provided with skills to manage stress early in their breast cancer treatment show greater length of survival and longer time till disease recurrence over eight to 15 years after their original diagnosis, newly published research from a randomized trial shows.

Thursday, November 26, 2015

Children's Health: Infants under 12 months most at risk of physical abuse ♦ Increase in infant deaths attributed to crib bumpers ♦ Food odors activate impulse area of the brain in obese children

Infants under 12 months most at risk of physical abuse Infants under the age of 12 months are most at risk of serious physical abuse, reveals a large study of severely injured children. Compared with children whose injuries had been accidental, the injuries of abused children were more severe and tended to involve the head/brain.
Increase in infant deaths attributed to crib bumpers The number of infant deaths and injuries attributed to crib bumpers has spiked significantly in recent years, prompting researchers to call for a nationwide ban on the bedding accessory.
Food odors activate impulse area of the brain in obese children The area of the brain associated with impulsivity and the development of obsessive-compulsive disorder is activated in obese children when introduced to food smells.

Lack of protein in rare childhood disease also has role in cancer An expert who has treated rare childhood diseases has found that a protein that is missing in one such disease is also silenced by many cancers. Looking at how the lack of the protein affects the sick children also provides a “lens” on cancer.

Cancer Research: Antibody-drug compounds and immunotherapy to treat breast cancer ♦ Drug may prevent life-threatening muscle loss in advanced cancers

Investigational drug may prevent life-threatening muscle loss in advanced cancers New data describes how an experimental drug can stop life-threatening muscle wasting (cachexia) associated with advanced cancers and restore muscle health. The experimental agent, known as AR-42 while in testing, was tested in preclinical studies
Detecting cancer cells before they form metastases A new method to detect cancer cells in the blood before they settle in the tissue and form a new tumor has been developed by a team of researchers. To date, it has been difficult to detect cancer cells in the blood at an early stage: about one malignant cell is encountered per billion of healthy cells.
Anticancer agent FL118 more potent than its analogs, not prone to typical channels of resistance A new synthetic form of camptothecin appears to have greater potency, longer efficacy and fewer adverse side effects than irinotecan and topotecan.
Antibody-drug compounds and immunotherapy to treat breast cancer To more efficiently treat breast cancer, scientists have been researching molecules that selectively bind to cancer cells and deliver a substance that can kill the tumor cells, for several years. Researchers have now, for the first time, successfully combined such an antibody-drug conjugate with a therapy that stimulates the immune system to attack tumor cells. This opens the door to new therapeutic options in the treatment of breast cancer

Tuesday, November 24, 2015

Cancer Research:Bacteria from the sea join the fight against cancer,♦ Sensory illusion causes cells to self-destruct ♦ Long-term outcomes in childhood, young adult cancer survivors

Bacteria from the sea join the fight against cancer, infections Scientists are opening the gates of nature’s secret medicine factories, with the aim of giving us new weapons against cancers and resistant bacteria. They are developing technology that will make it easier to find – and exploit – these hidden and unutilised medicine factories in bacteria that exist in the natural environment. The hunt will concentrate on marine bacteria.
Sensory illusion causes cells to self-destruct Magic tricks work because they take advantage of the brain's sensory assumptions, tricking audiences into seeing phantoms or overlooking sleights of hand. Now a team of researchers has discovered that even brainless single-celled yeast have sensory biases that can be hacked by a carefully engineered illusion, a finding that could be used to develop new approaches to fighting diseases such as cancer.
Long-term outcomes in childhood, young adult cancer survivors Recent work has focused on long-term outcomes in survivors of childhood or young adult cancer. Among other findings, researchers found that cancer survivors had an overall increased relative risk for hospitalization compared with those in the general population. Cancer survivors at highest risk for hospitalizations were leukemia, brain cancer and Hodgkin lymphoma survivors
Better catalysts will remove carcinogenic chlorine compounds from water Two new catalysts have been developed as effective treatment of tap water. With these catalysts, researchers intend to eliminate harmful chlorine compounds

Friday, November 20, 2015

Children's Health: How a raisin can predict a toddler's future academic ability ♦ Infants with blind parents pay less attention to eyes ♦ Link between breakfast quality and educational outcomes

Study provides strongest evidence yet of a link between breakfast quality and educational outcomes A new study of 5,000 9- to 11-year-olds demonstrates significant positive associations between breakfast consumption and educational outcomes.The research found that the odds of an above average Teacher Assessment score were up to twice as high for pupils who ate breakfast.
More than 8 percent of children with cancer have genetic predisposition, The most detailed analysis yet of the role germline mutations in genes associated with cancer predisposition play in the development of childhood cancer suggests that comprehensive genomic screening may be warranted on all pediatric cancer patients, not just those with a family history of cancer
How a raisin can predict a toddler's future academic ability A simple test using a raisin can predict how well a toddler will perform academically at age eight,.
Infants with blind parents pay less attention to eyes For parents of young children, there are few milestones more memorable than that first word. But people communicate an awful lot to each other without ever saying anything at all. So, how do infants learn to communicate with the people around them nonverbally, through eye contact? Researchers have some new insight into this silent form of communication from an unlikely source: the sighted children of blind parents

Cancer Research:Working up a sweat may protect men from lethal prostate cancer ♦ Technique to more effectively diagnose, treat cancer developed

Technique to more effectively diagnose, treat cancer developed A method to better trace changes in cancers and treatment of the prostate and lung without the limitations associated with radiation has been developed.
Socioeconomic factors associated with undergoing surgery for early-stage pancreatic cancer While socioeconomic factors such as race, ethnicity, marital status, insurance status, and geographic location are associated with whether patients with localized pancreatic cancer undergo resection (surgical removal of the tumor), only geographic location is associated with survival in these patients,
Working up a sweat may protect men from lethal prostate cancer A study that tracked tens of thousands of midlife and older men for more than 20 years has found that vigorous exercise and other healthy lifestyle habits may cut their chances of developing a lethal type of prostate cancer by up to 68 percent.
Global task force tackles problem of untreatable cancers and disease relapse: Non-toxic chemicals in plants and foods may be key Many cancer therapies are highly toxic, and even when they appear to work, a significant percentage of patients will experience a relapse after only a few months.  Typically these relapses result from small subpopulations of mutated cells which are resistant to therapy, and doctors who try to address this problem with combinations of therapies find that therapeutic toxicity typically limits their ability to stop most cancers

Wednesday, November 18, 2015

Cancer Research Nanotech-based sensor developed to measure microRNAs in blood, speed cancer detection:♦ Nondrug interventions improve quality of life for Chinese cancer patients

Study advances potential test to sort out precancerous pancreatic cysts from harmless ones In a 'look-back' analysis of data stored on 130 patients with pancreatic cysts, scientists have used gene-based tests and a fixed set of clinical criteria to more accurately distinguish precancerous cysts from those less likely to do harm.
Bone protein inhibits prostate cancer invasion. A secreted protein predominantly expressed in bone inhibits prostate cancer metastasis to bone, new research shows. Prostate cancer is the most frequently diagnosed cancer and the second leading cause of cancer-related deaths among men in the United States. If detected at early stages the prognosis is quite favorable; however, aggressive forms of metastatic prostate cancer spread primarily to the skeleton
Nondrug interventions improve quality of life for Chinese cancer patients A meta-analysis of dozens of studies of traditional Chinese medicine and other nonpharmacological interventions meant to improve patients' quality of life affirms that these approaches, on the whole, help alleviate depression, fatigue, pain, anxiety, insomnia and gastrointestinal problems in Chinese cancer patients
Nanotech-based sensor developed to measure microRNAs in blood, speed cancer detection A newly developed, simple, ultrasensitive microRNA sensor holds promise for the design of new diagnostic strategies and, potentially, for the prognosis and treatment of pancreatic and other cancers

Saturday, November 14, 2015

Cancer Research: Engineers develop 'killer cells' to destroy cancer in lymph nodes ♦ Kidney failure and its treatment may impact cancer risk ♦ Drug could limit spread of deadly brain tumors

Tracing activity of cancer-fighting tomato component Years of research have demonstrated that lycopene, the bioactive red pigment found in tomatoes, reduces growth of prostate tumors in a variety of animal models. When consumed, lycopene undergoes a change in its chemical structure that potentially influences health,
Drug could limit spread of deadly brain tumors In a significant breakthrough, researchers have identified a drug, propentofylline or PPF, that could help treat patients with deadly brain cancer. They report that PPF works to limit the spread of glioblastoma multiforme, or GBM -- the most common primary tumor of the brain and central nervous system -- by targeting a protein called TROY.
Engineers develop 'killer cells' to destroy cancer in lymph nodes Biomedical engineers have developed specialized white blood cells -- dubbed 'super natural killer cells' -- that seek out cancer cells in lymph nodes with only one purpose: destroy them. This breakthrough halts the onset of metastasis.
Kidney failure and its treatment may impact cancer risk Risk of kidney and thyroid cancers was especially high when kidney failure patients were on dialysis, researchers have discovered. Conversely, risk of non-Hodgkin lymphoma, melanoma, lung cancer, and certain skin cancers was highest following kidney transplantation, likely due to immunosuppressant medications. Kidney failure is on the rise and currently afflicts an estimated 2 million people worldwide.

Sunday, November 8, 2015

Health News: Eye drops could clear up cataracts ♦ New research could help in the fight against infection, cancer and allergies ♦ Potential target for dry age-related macular degeneration

Study identifies patients most likely to have joint pain reduction after bariatric surgery In the three years following bariatric surgery, the majority of patients experience an improvement in pain and walking ability. A new study went on to identify key patient characteristics that can indicate which people are the most and the least likely to see improvement, a finding that could allow clinicians to identify patients who may require additional interventions to improve outcomes.
Scientists find potential target for dry age-related macular degeneration Scientists have good news for patients who suffer from currently untreatable dry age-related macular degeneration (dry AMD). In a new study, researchers identified a potential target for future therapies to slow the progression of the blinding condition. The findings indicate that treatments currently used for other conditions could also work for dry AMD.
Eye drops could clear up cataracts using newly identified chemical A chemical that could potentially be used in eye drops to reverse cataracts, the leading cause of blindness, has been identified by a team of scientists.
New research could help in the fight against infection, cancer and allergies New research has uncovered an important mechanism in the drive to understand immunological processes that protect us against infection, allergy and cancer.

Friday, November 6, 2015

Cancer Research: World first 3-D image of a protein involved in cancer spread ♦ Cancer cells hijack glucose, alter immune cells ♦ Gut bacteria can dramatically amplify cancer immunotherapy

World first 3-D image of a protein involved in cancer spread Scientific history has been made by determining the first three-dimensional image of a protein linked to the spread of cancer. The 3-D image shows the architecture and intimate atomic-level detail of a bacterial heparanase, an enzyme that degrades a sugar molecule known as heparan sulfate, say scientists.
Cancer cells hijack glucose, alter immune cells When cancer cells compete with immune cells for glucose, the cancer wins. As a result, the immune T cells are not healthy and don't have the weapons to kill the cancer. New research findings, report scientists, have potential as a tool to predict ovarian cancer survival, or a marker to predict effectiveness of immunotherapy including checkpoint blockade or immune vaccination.
Cancer-associated mutations are common in patients with unexplained low blood counts Patients with unexplained low blood counts and abnormally mutated cells who do not fit the diagnostic criteria for recognized blood cancers should be described as having clonal cytopenias of undetermined significance  suggest researchers in a recent paper. The researchers found the condition surprisingly common in older patients with low blood counts.
Gut bacteria can dramatically amplify cancer immunotherapy Introducing certain bacteria into the digestive tracts of mice with melanoma can help their immune systems attack tumor cells. The gains were comparable to treatment with anticancer drugs known as checkpoint inhibitors. The combination of bacteria and anti-PD-L1 nearly abolished tumor outgrowth, report scientists.