currently
the tumor treatment studies are restricted to primary tumors but very little is being done to understand nanoparticle routing and penetration of metastatic site
Not exact matches
Chicago, GenomeWeb — A new
study by researchers from Memorial Sloan Kettering Cancer Center has demonstrated the predictive power of an AR - V7 protein expression test using Epic Sciences» non-EPCAM-based circulating
tumor cell detection platform, which could help guide
treatment decisions for men with metastatic castration - resistant prostate cancer.
Given the results of a a new
study reported in the British medical journal, The Lancet4 that children and young adults scanned multiple times by CT have a small increased risk of leukemia and brain
tumors in the decade following their first scan, parents should make sure a CT scan is really necessary in
treatment of their child after head injury.
To that goal, Smith is launching a radiation
study looking at two - to - two - and - a-half weeks of
treatment of external beam treating a large area surrounding the
tumor bed.
Even before
treatment, cancer patients in the
study had a small number of infection - and
tumor - fighting T cells that target these unusual proteins, the researchers found.
According to the
study, in the
treatment of small renal
tumors, the ideal outcome of both complete oncologic control and preservation of renal function is not presently available.
The discovery of a
treatment capable of blocking the mechanism responsible for the formation of metastasis and the existence of a family of promising compounds, is encouragement for their future assessment in a clinical
study that aims to validate a preventive
treatment against
tumor metastasis.
However, the majority of patients develop
treatment - resistant
tumors, and only 10 to 15 percent of these patients survive long term, says Ie - Ming Shih, M.D., Ph.D., the Richard W. TeLinde Distinguished Professor in the department of Gynecology and Obstetrics, who led the
study with Tian - Li Wang, Ph.D., an associate professor of pathology and oncology at the Johns Hopkins University School of Medicine.
Led by Stella K. Kang, a radiologist with the Department of Radiology at the New York School of Medicine, the
study was designed to compare the effectiveness of a
treatment algorithm for small renal
tumors incorporating the nephrometry score, a renal
tumor anatomy scoring system developed by urologists, with the current standard of uniformly recommended partial nephrectomy in patients with mild - to - moderate chronic kidney disease (CKD).
«Surgery is the main
treatment option for patients with most solid
tumors, but recurrence and metastasis remain significant problems,» says
study senior author Michael Goldberg, PhD, assistant professor at Dana - Farber and Harvard Medical School.
Pre-clinical
studies have shown that ALT - 803 activates the immune system to mobilize lymphocytes against
tumor cells and could potentially serve as an important component in combination
treatments.
«Although radiosurgery has been shown to be an effective post-surgical
treatment for metastatic brain
tumors, previous
studies did not compare patient outcomes from a single hospital over the same period of time,» said N. Scott Litofsky, M.D., chief of the Division of Neurological Surgery at the MU School of Medicine and senior author of the
study.
Moreover, primary
tumor locations should be carefully considered when deciding
treatment intensity in metastatic and locoregional settings, and should represent an important stratification factor for future adjuvant
studies,» the article concludes.
Pembrolizumab, or pembro, an immunotherapy drug that unmasks cancer cells and allows the body's own immune system to help destroy
tumors, appears to be safe in treating lung cancers, according to a
study by Cancer
Treatment Centers of America ® (CTCA) at Western Regional Medical Center (Western) in Goodyear, Arizona.
In past imaging
studies, my colleagues and I noticed that cervical
tumors that took up a lot of glucose prior to radiation
treatment tended to be more resistant to radiation therapy than other
tumors.
That allowed
tumor cells to survive gemcitabine
treatment in lab dishes and mouse
studies, Leore Geller of the Weizmann Institute of Science in Rehovot, Israel, and colleagues discovered.
Studies in recent years by Beatty's laboratory and others have pointed to one potential source of this
treatment resistance: Pancreatic
tumors tend to surround themselves with a protective «microenvironment.»
Although changes in
treatment methodology still have to be
studied, Dr. Cripe believes it may be that the timing of various
treatments is what matters, and that perhaps initially suppressing immunity could allow the virus to infect a large number of
tumor cells before relieving the immunosuppression to allow the body's own T cells to fight off the
tumor.
«
Studies like the current one involving rhabdomyosarcoma are giving us a close - up look at the way cancer evolves in response to
treatment,» said
study co-author Richard K. Wilson, Ph.D., director of The Genome Institute at Washington University School of Medicine in St. Louis, where scientists have extensive expertise analyzing
tumor recurrence using whole - genome sequencing.
«
Study identifies potential
treatment target for pancreatic cancer: Molecular signature found in 30 percent of PDAC
tumors associated with more aggressive cancer.»
Called the Canakinumab Anti-inflammatory Thrombosis Outcomes
Study (CANTOS) and funded by the drug giant Novartis, the trial also found fewer cases of lung cancer in those on the
treatment, rekindling basic research findings hinting that the same inflammatory pathway may initiate or spur the growth of such
tumors.
While previous
studies have surveyed the genomic characteristics of
tumors confined to the prostate gland, the new
study is the first to focus on metastatic hormone resistant prostate cancers, which can be difficult to treat because they often develop resistance to standard
treatments.
«In the clinic, we frequently test myc levels in patients»
tumors, for disease prognosis and to predict
treatment response,» said Michael Pourdehnad, MD, a clinical oncologist at UCSF with Ruggero's lab and the first author of the
study.
Consequently, «metformin is being
studied in various solid
tumors,» Karmalis says, «and has the potential to change
treatment paradigms for a number of cancer types,»
The discovery of an unexpected biochemical link within
tumor cells should lead to clinical trials for experimental drug
treatments that indirectly target myc and that already are being evaluated in human
studies, the researchers said.
The team's recent
study in mice has found that the
treatment reduced the mass of ovarian cancer
tumors and was more effective at suppressing
tumor growth than chemotherapy.
«Drug could limit spread of deadly brain
tumors:
Study shows PPF could help treat glioblastomas by sensitizing
tumors to chemotherapy, radiation
treatments.»
«Additional
studies are needed to see if these nanoparticles could also effectively deliver other antitumor genes for the
treatment of brain
tumors as well as systemic cancers.»
«By understanding how stress accelerates invasion in aggressive breast
tumor cells, this work will inform future
studies into whether beta - blockers could be a useful adjuvant therapy in the
treatment of some aggressive breast cancers.»
Because bazedoxifene has already undergone safety and efficacy
studies as a
treatment for osteoporosis, it may be a viable near - term option for patients with advanced breast cancer whose
tumors have become resistant to other
treatment options, Wardell reported.
Chemotherapy and other cancer
treatments are supposed to get rid of the disease, but a new
study finds they can elicit aggressive
tumor growth instead, STAT reports today.
The
study also suggests how ovarian cancer
treatments can be tailored based on the metabolic profile of a particular
tumor.
«Other
studies have looked at racial disparities in
treatment and still others have focused on racial differences in survival rates of cancer patients, but our research attempted to go further by demonstrating the impact of race - based inequalities in cancer
treatment on survival rates of black colorectal cancer patients,» said James D. Murphy, MD, MS, assistant professor and chief of the Radiation Oncology Gastrointestinal
Tumor Service at UC San Diego Moores Cancer Center.
«Mouse
studies hold promise for a simple
treatment for an aggressive gastric
tumor.»
The first long - term
study of a pioneering endoscopic laser
treatment for early vocal - cord cancer, developed at Massachusetts General Hospital (MGH) and previously shown to provide optimal voice outcomes, finds that it is as successful as traditional approaches in curing patients»
tumors while avoiding the damage to vocal quality caused by radiotherapy or by conventional laser or cold - instrument surgery.
«The
study demonstrates that controlled heating of one
tumor can stimulate an immune response that attacks another
tumor that has not had the heat
treatment,» said Steve Fiering, PhD, Norris Cotton Cancer Center researcher and professor of Microbiology and Immunology, and of Genetics at the Geisel School of Medicine at Dartmouth.
This
study included 68 childhood cancer survivors who had received cranial irradiation, intrathecal chemotherapy or both for
treatment of acute lymphoblastic leukemia (ALL) or brain
tumors.
«These findings raise the possibility that by determining the gene expression profile of a patient's
tumor, physicians may be able to identify aggressive disease at the outset of diagnosis and start
treatment earlier,» said Sungyong You, PhD, an instructor in the Cedars - Sinai Department of Surgery and the first author of the
study.
The
study, published in Nature Genetics, offers the possibility that targeting these processes, instead of single genes, may provide new opportunities for
treatment of Wilms
tumor.
The
study, «Testosterone
Treatment is a Potent
Tumor Promoter for the Rat Prostate,» was published online, ahead of print.
Matthew J. Ellis, MD, PhD, said the research, presented at the San Antonio Breast Cancer Symposium, is a step toward precision medicine, allowing scientists to
study tumors from patients whose
treatment regimens are well - documented.
Researchers could identify which individual cells — from a
tumor or a strain of bacteria — survive a drug
treatment and
study them further, something that's not possible with current culture - and - stain tests, Demirci says.
Our findings suggest the location of spread is less important than the amount of
tumor that is present before
treatment,» says the
study's lead investigator, Richard W. Joseph, M.D., an oncologist at Mayo Clinic in Florida.
If we validate this
study in similar, but larger groups of patients, we can develop a test based for CFS breaks; the results would allow us to place patients in one of two categories: those whose
tumors do not have CFS breaks and who would likely do well with local
treatment alone (e.g. radiotherapy or surgery); and, those patients whose
tumors do have CFS breaks and would need a more complex
treatment protocol, in addition to RT or surgery, to combat distant spread.»
Two case
studies provide an important potential new avenue for
treatment of these types of
tumors, which are resistant to traditional radiation therapies and difficult to manage even with surgery, the current standard of care.
In this
study, researchers assessed the outcomes of 280 prostate cancer (Cap) patients, and reviewed the DNA «fingerprints» of each patient's
tumor (using the patient's initial diagnostic core biopsy) to determine if gene copy number alterations (CNAs), or breaks in CFSs, were related to a less positive response to
treatment.
In animal models, the modified T cells greatly reduced the
tumor burden and prolonged overall survival: All mice that received the modified T cells were alive 44 days after
treatment versus 29 percent and 17 percent of the
study's two control groups.
In the pilot
study, recently published in the journal World Journal of Urology, this method has now been applied successfully at the Department of Urology at the Medical University of Vienna for the first time to the surgical
treatment of complex renal
tumors.
Image guided radiation therapy (IGRT) is a commonly used modality to ensure
treatment accuracy in the management of pediatric
tumors; however, consensus recommendations are needed in order to guide clinical decisions on the use of IGRT in treating pediatric patients, according to a
study published in the September - October 2014 issue of Practical Radiation Oncology (PRO), the official clinical practice journal of the American Society for Radiation Oncology (ASTRO).
«Our
study aimed to compare contrast - enhanced mammography with breast MRI in evaluating residual breast cancer in patients undergoing presurgical systemic
treatment to shrink their
tumor size,» says Bhavika Patel, M.D., a radiologist at Mayo Clinic's Arizona campus.