Dear Grey Horizon readers,
While 2020 has undoubtedly been a difficult year, we nonetheless would like to wish you a happy and restful holiday season. Blog posts will resume in January 2021.
Dear Grey Horizon readers,
While 2020 has undoubtedly been a difficult year, we nonetheless would like to wish you a happy and restful holiday season. Blog posts will resume in January 2021.
New research has unveiled a correlation between a specific type of mouth bacteria and the development of lung cancer in those who have never smoked. While 25% of all lung cancer patients are non-smokers, researchers now believe that exposure to second-hand smoke and family history are not the only risk factors. Of the 135,000 individuals observed in this study, "having a wider number of different species of bacteria, specifically Bacteroidetes and Spirochaetes, was associated with a lower risk of developing lung cancer, [while] higher volumes of Firmicutes species of bacteria in the mouth was associated with a heightened risk for lung cancer."
To read more about this study, click here.
Source mentioned: Hosgood HD, Cai Q, Hua X, Long J, Shi J, Wan Y, Yang Y, Abnet C, Bassig BA, Hu W, Ji BT, Klugman M, Xiang Y, Gao YT, Wong JY, Zheng W, Rothman N, Shu XO, Lan Q. Variation in oral microbiome is associated with future risk of lung cancer among never-smokers. Thorax. 2020 Dec 14:thoraxjnl-2020-215542. doi: 10.1136/thoraxjnl-2020-215542. Epub ahead of print. PMID: 33318237.
A recent news release on the Cancer Research UK blog states that more than 300 potential vaccines have been in development since the COVID-19 outbreak in March. Many of these vaccines are in the final stages of testing, with Pfizer commencing vaccine rollout across the United Kingdom yesterday (December 8, 2020).
According to the Joint Committee on Vaccination and Immunization (JVCI), the recommended order of vaccination priority is:
A recently completed study by the World Health Organization (WHO) determined that women with HIV have a considerably higher risk (up to 6 times more likely) of developing vertical cancer. In fact, nearly "5% of all cervical cancer cases worldwide are attributable to HIV infection." The WHO study, published as a systematic review and meta-analysis in the November 2016 issue of The Lancet Global Health, determined that 63.8% of women in Southern Africa diagnosed with cervical cancer were living with his, the highest rate of all 4 continents (Africa, Asia,, Europe, and North America) included in the study.
To read more about this study, click here.
First reported at the ESMO Asia Virtual Congress, held this past weekend (November 20-22, 2020), researchers in the Department of Surgery and Cancer at Imperial College, Hammersmith Hospital in London, "investigators testing and validating several key biomarkers of inflammation to identify cancer patients at increased risk of mortality from COVID-19 found a significant association between these biomarkers and decreases overall survival." Known as OnCovid, the study retrospectively analyzed 1,318 cancer patients diagnosed with COVID-19 from February 27 - June 23, 2020 at 23 academic centres in the United Kingdom, Spain, Italy, Germany, and Belgium. The findings determined that inflammation is a key factor in mortality from SARS-COV-2 for cancer patients and thus can be used "as beside tests to stratify patients at risk of poorer outcome from COVID-19."
To read more about this study, click here.
Study mentioned: 319O – Dettorre G, Diamantis N, Loizidou A, et al. The systemic pro-inflammatory response identifies cancer patients with adverse outcomes from SARS-CoV-2 infection. ESMO Asia Virtual Congress 2020 (20-22 November).
A new factsheet released by the World Health Organization (WHO) focused on the need for greater awareness regarding alcohol use and cancers, specifically breast and colorectal. The fact sheet states that alcohol consumption was responsible for 180 000 cancer cases and 92 000 deaths in Europe in 2018. Several coat-effective policies, "such as increasing taxes on alcoholic beverages and restricting marketing and availability of alcohol" are suggested as policies that can be implemented to curb this disturbing trend.
To learn more about this factsheet, click here.
Following a think tank held this past September, comprised of 400 scientists from academia, industry, and government, together with patent advocates, colorectal cancer rates are on the rise amongst young adults. When the age range is extended from the traditional young adult grouping beyond the 18-24 or even 18-35 age group, "colorectal cancer is a leading cause of cancer death among people under 50 in the United States." Further, only 10%-20% of colorectal cancer diagnoses among younger adults are due to inherent genetic factors; most are caused by lifestyle factors, including poor diet and sedentary behaviour.
To read more about the think tank findings, click here.
A recently completed trial at the Massachusetts General Hospital Cancer Centre in Boston indicates that next-generation sequencing (NLS) conducted on biopsy specimens of 5,954 patients "with relapsed, refractory advanced cancers permits training of newly one-with (18%) of patients to evidence-based investigational therapy." Known as NCI-MATCH (National Cancer Institute Molecular Analysis for Therapy Choice), this was the first national trial of its kind in the United States, incorporating "centralized diagnostic testing and geographically distributed clinical investigation of dozens of parallel treatment options."
To read more about this trial, click here
Source mentioned: Flaherty KT, Gray RJ, Chen AP, et al. Molecular Landscape and Actionable Alterations in a Genomically Guided Cancer Clinical Trial: National Cancer Institute Molecular Analysis for Therapy Choice (NCI-MATCH). JCO; Published online 13 October 2020. DOI: 10.1200/JCO.19.03010.
Research arising from the National Cancer Institute's (NCI) Cancer Therapy Evaluation Program (CTEP) indicates that radiopharmaceuticals, "which deliver radiation therapy directly and specifically to cancer cells" can reduce both the short and long-term effects of radiation therapy treatment. According to Dr. Charles Kenos of NCI CTEP, radiopharmaceuticals will "transform radiation oncology in the next 10 to 15 years."
To read more about this study, click here.
Treatment recommendations from the recently held MAP 2020 Virtual Congress indicated that "molecular profiling demonstrated gender specific differences in gene expression" in patients with metastatic malignant mesothelioma. The study, conducted at the Universitatsklinik fur Innere Medizin in Vienna, Austria determined that this form of targeted therapy varied according to gender, with more significant recommendations made for men vs. women "due to gender-specific differences in PDGRFA expression."
To read more about this study, click here.
Source mentioned:
Taghizadeh H, Zöchbauer-Müller S, Mader RM, Müllauer L, Klikovits T, Bachleitner-Hofmann T, Hoda MA, Prager GW. Gender differences in molecular-guided therapy recommendations for metastatic malignant mesothelioma. Thorac Cancer. 2020 Jul;11(7):1979-1988. doi: 10.1111/1759-7714.13491. Epub 2020 May 21. PMID: 32438515; PMCID: PMC7327667.
New research from the Jackson Laboratory for Genomic Medicine in Farmington, USA studied the genomic affects of radiation therapy on gliomas. Following an analysis from 190 paired primary and recurrent gliomas from the Glioma Longitudinal Analysis (GLASS) databases, it was determined that "an increased burden of radiation-induced deletions was significantly associated with poor patient outcome."
To read more about this study, which was recently presented at the MAP 2020 Virtual Congress, click here.
Study mentioned: 2MO – Kocakavuk E, Anderson KJ, Johnson KC, et al. Radiotherapy in cancer is associated with a deletion signature that contributes to poor patient outcomes. MAP 2020 Virtual Congress (9-10 October 2020).
A new study led by researchers at the National Cancer Institute (NCI) shows that targeting an enzyme known as WRN may be a new method used to treat specific cancers. Over the previous year, "scientists discovered that cancers cells with a genetic feature called micro satellite instability-high (MSI-high) need WRN to survive." Approximately 1 in 3 endometrial, 1 in 7 colorectal, stomach, and ovarian cancers, are considered MSI-high.
To read more about this study, click here
New data presented at the recent ESMO (European Society for Medical Oncology) 2020 conference discusses 3 trials, CheckMate, Attraction 4, and Keynote 590 supporting the use of immunotherapy for gastric and oesophageal cancer patients with poor survival prognoses. As indicated in the ESMO press release "immune checkpoint inhibitors are not yet approved for early therapy in Western countries." The trials thus provide evidence on the use of different immune checkpoint inhibitors as first-line therapy regimens.
To read more about these trials, click here.
According to criteria from the Global Leadership Initiative on Malnutrition (GLIM), malnutrition and risk of developing nosocomial infection is at high prevalence upon hospital admission for cancer patients. A small observational study of 107 patients (average age of 66 years old) conducted at General University Hospital of Valencia Oncology Department, indicated that 70% had an advanced stage of cancer diagnosis, presenting with severe (44.9%) and moderate (17.8%) malnutrition on admission. Study author Dr. Nunez Abad and his investigative team thus advise that "an adequate nutritional evaluation is essential for timely implementation of nutritional support, to avoid malnutrition, sarcopenia and to decrease NI."
To read more about this study, click here.
As recently discussed at the European Society of Medical Oncology (ESMO) Virtual Congress 2020, the COVID-19 pandemic has resulted in delays and/or cancellation of cancer treats, while increasing stress levels and causing burnout among oncologists. According to a statement by Dr. Guy Jerusalem at the Centre Hospitalier Universitaire Sart Tilman in Belgium, "COVID-19 has had a major impact on the organization of patient care...there is a risk that the diagnosis of new cancer cases will be delayed and that more patients will be diagnosed at a later stage of their disease." Studying findings indicated that among survey results obtained from cancer centres across 18 European countries, 60.9% admitted that clinical activity was reduced as a result of COVID-19, with 64.2% concerned about under-treatment, and 37% expecting significant reductions in clinical trials.
To read more about this study, click here.
To all Grey Horizon readers,
Postings will resume the week of September 14th. Please stay safe and well.
A recently published systematic review and meta-analysis, conducted within the Division of Medical Oncology at the Kansas University Medical Center, indicates that gender, in particular males is a significant risk factor for advanced disease and death as a result of COVID-19.
The study authors have posited a number of theories regarding the gender difference, including age, comorbidities, as well as "androgenic hormones in the pathogenesis, potential sex differences in one or more of the multistep immunopathogenic pathway including virus entry, innate immune virus recognition, and induction of adaptive immune response."
To read more about this study, click here.
Study mentioned:
Sex-bias in COVID-19-associated illness severity and mortality in cancer patients: A systematic review and meta-analysis. EClinicalMedicine; Published online 24 August 2020. DOI: https://doi.org/10.1016/j.eclinm.2020.100519
A randomized clinical trial, ASPREE, indicates that patients 70 years of age or older who regularly take 100mg of aspirin daily "have a greater likelihood of being diagnosed with an advanced cancer and of dying from cancer." While researchers agree that further study is required, many believe that aspirin may indeed have a different effect on people as they age. Dr. Andrew Chan, senior researcher for ASPREE the strongly believes that "cancer prevention should be tailored to each person."
To read more about this study, click here.
A recently published study conducted on 1016 cancer patients in a tertiary care hospital in Vienna between March 21, 2020 - May 4, 2020 indicates a "low rate of detectable SARS-CoV-2 infections...after implementation of institutional and population-wide safety measures." As countries worldwide can attest to, COVID-19 mortality is highest among the elderly. 88% of the 1016 cancer patients tested were managed in an outpatient setting; 53 patients (5.2%) self-reported symptoms attributable to COVID-19, however only 4 patients (0.4%) were officially diagnosed with coronavirus. While the study team acknowledges that their research was conducted in a controlled setting, they are adamant that "implementation of strict safety policies including routine SARS-CoV-2 testing in cancer patients in the cancer centres is advisable to present uncontrolled viral spread."
To read more about this study, click here.
Study mentioned: Berghoff AS, Gansterer M, Bathke AC, et al. SARS-CoV-2 testing in 1016 consecutive cancer patients treated at a tertiary care hospital during the COVID-19 pandemic. Journal of Clinical Oncology; Published on 14 August 2020. DOI: 10.1200/JCO.20.01442.
A new study conducted by Kaiser Permanente in Southern California has unveiled a correlation between types of cancer treatment and the risk of developing health problems in adolescent and young adult cancer survivors. According to study leader Dr Chun Chao, adolescent and young adult cancer survivors have been an understudied group, however, the risk of this age group developing one of 26 health conditions after completion of treatment was considerable: "after 10 years, 40% of AYA [adolescent and young adult] cancer survivors had developed two or more...conditions, compared with only 20% of people...with not history of cancer."
To read more about this study, click here.