Understanding why immunotherapies are highly effective in some patients but fail in many others is one of the top priorities in cancer research — and one of the most challenging puzzles. A research team led by Catherine J. Wu, MD, has uncovered some previously unknown molecular factors affecting donor lymphocyte infusion (DLI), a form of … Read more
In December 2013, Michelle Leonard wasn’t too concerned when she felt a pain in her right chest. “I kind of thought, ‘Well at least it’s the right side, not a big deal,’” she says. But then she developed a fever and decided to go to her primary care physician. Her nurse practitioner sent her for … Read more
As a former volunteer firefighter, Paul Calnan prided himself on being ready for any emergency. He thought nothing could rattle him — until, at age 47, doctors discovered a large, malignant tumor in his liver. The diagnosis was stage IV intrahepatic cholangiocarcinoma, a rare form of bile duct cancer that had presented in Calnan’s liver. … Read more
Cancer vaccines are a form of immunotherapy aimed at enhancing the immune system’s ability to recognize and attack cancer cells, or to protect against certain forms of cancer caused by viruses. Vaccine can help prevent some cancers There are two approved preventive vaccines directed against cancer-causing viruses. A vaccine for hepatitis B, which can cause … Read more
Despite the sometimes-dramatic success of new cancer immunotherapies like checkpoint inhibitor drugs and CAR T cells, thus far only a minority of patients have responded or gained long-lasting benefits. A major reason for the inconsistent results of immunotherapy is a phenomenon known as “T-cell exhaustion” — a weakening or loss of tumor-killing function by T … Read more
Tumors with high mutational burden have a large number of genetic mutations, or misspellings of the genetic code within their cells. Such cancers tend to acquire mutations as a result of exposure to harmful agents such as ultraviolet light or certain chemicals in tobacco. Malignancies that often have a high number of mutations include: Non-small … Read more
The go-to metaphor for cancer drugs known as immune checkpoint inhibitors is a brake-release lever — a means of setting loose an immune system attack on tumor cells. Helpful as it is, the analogy glosses over a highly complex mechanism involving multiple types of immune cells, cell receptors, signals, and responses — so intricate that … Read more
The intriguing case of a man with melanoma tumors that responded in different ways to the same checkpoint-blocking drug has yielded an important clue to the causes of resistance to immunotherapy treatments, according to Dana-Farber researchers. The findings could help guide the use of immunotherapy in individual patients. The 74-year-old patient, described in a report … Read more
As a designer of fantasy-style board games, Kate Beckett knows that timing and chance can play important roles in a player’s survival. Living with metastatic endometrial cancer, she has proof both can also be helpful in the real world. Beckett had already endured a hysterectomy, chemotherapy, radiation, and a serious kidney infection during six years … Read more
Immunotherapy for cancer is a form of treatment that uses the body’s immune system to combat the disease. Today, immunotherapy is being applied to a wide range of cancers, often in combination with other agents, and clinical trials are exploring ways of improving and expanding its effectiveness. A particularly promising form of immunotherapy, known as … Read more
Medically reviewed by Natalie Collins, MD, PhD New treatments that spur the immune system against cancer have entered the clinic to combat some forms of pediatric blood cancers, such as acute lymphoblastic leukemia (ALL). One form of immunotherapy, CAR T cells, has been approved for children and young adults with ALL. In treating solid tumors … Read more
Immunotherapy refers to treatments that use the body’s immune system to combat diseases. Immuno-oncology focuses on efforts to use the immune system as a weapon against cancer. The immune system is a collection of organs, tissues, specialized cells, and substances that protect the body against infection and disease. While the immune system can often handle … Read more
What are PD-1 and PD-L1? PD-L1 is a protein on the surface of some cancer cells that interacts with the PD-1 protein on T cells of the immune system to thwart an immune attack on the cancer. It’s one of the tools that cancer cells use to escape an attack by the immune system and … Read more
Every cancer patient is different, and there are many different types of cancer treatment that a patient may receive—all of which is dependent on their unique circumstances. A patient may only receive one type of treatment or a combination of multiple different treatments. Treatment can also have different goals. In some cases, treatment is used … Read more
Immunotherapy drugs can be more effective against cancer when combined with other therapies, such as radiation therapy, targeted drugs, or other immunotherapy agents. Clinical trials that are currently underway are testing such combinations in a variety of cancers. It might seem that immunotherapy and chemotherapy make an unpromising pair. Chemotherapy, after all, is known to … Read more
Marking the first time an immunotherapy agent has been approved for the treatment of a form of breast cancer, the U.S. Food and Drug Administration (FDA) has authorized the use of the drug atezolizumab in combination with the chemotherapy drug nab-paclitaxel for patients with advanced triple-negative breast cancer. The approval was granted on an accelerated basis … Read more
Six years’ worth of repeated surgeries, radiation, and chemotherapy with three different agents failed to halt the growth of Frances Zichichi’s brain tumor. As it kept recurring and more surgeries were required, Zichichi lost the use of her left side. Eventually the cancer formed masses under her scalp, causing pain, which was dulled only with … Read more
In early 2018, Sandra Linberg received an infusion of CAR T cells only a few months after the therapy was approved for treating her type of cancer. After only a month, her lymphoma had completely disappeared – she was in a complete remission. “Those little warrior cells took care of it,” declared Linberg, who has continued … Read more
A biomarker—short for “biological marker”—is something that can be objectively measured and is a sign of a normal or abnormal process, or a condition or disease. A biomarker can be a molecule found in the blood or other body fluids or tissues. Another type of biomarker is a genetic signature or “fingerprint”—a pattern of activity … Read more
Tests on living “organoids” created from patients’ ovarian cancer cells proved more accurate than DNA sequencing in predicting tumors’ sensitivity or resistance to chemotherapy drugs – and combining the two methods worked even better, say scientists at Dana-Farber Cancer Institute. The investigators report in Cancer Discovery that ovarian cancer organoids – tiny, three-dimensional spheres of cells … Read more