By Parker Lynch

According to the Mayo Clinic, cystic fibrosis (CF) is a disorder in which there is severe damage to the lungs and other organs in the body. This condition presents itself differently in each patient when comparing manifestations of symptoms; however, wheezing, difficulty breathing, exercise intolerance, constant lung infections, and recurrent sinusitis are all very common among individuals with CF. People with cystic fibrosis are very strong and admirable, as their condition can be very arduous in terms of treatment and monitoring: the need for consistent medication (bronchodilators, mucus thinners), using special devices and techniques to assist with breathing, monitoring what they eat, etc. 

Though it seems like CF and colorectal cancer (CRC) wouldn’t even be remotely related, adults with CF actually have a 5-10 times higher risk of developing CRC as opposed to adults without CF. On top of this, individuals with CF who receive lung transplants (or any other solid organ transplant, for that matter) are 20 times more likely to develop CRC, which requires them to complete their preventative screenings at the age of thirty rather than the standardly-recommended age of forty-five.

You can read about a CF patient’s experience with her surprise diagnosis of CRC. 

Where is This Connection Coming From?

As with any other condition or diagnosis, researchers aren’t completely certain of what the singular cause is of a CF patient’s higher chance of developing CRC. However, it is believed that mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) gene may have a role to play. Mutation in the CFTR gene not only leads to the development of CF, but can also lead to the development of CRC, though more research needs to be done on this topic to be able to analyze the strength of the correlation between the two. 

Moving Forward With This Information

Patients with CF are recommended to receive regular colonoscopies beginning at the age of 40 (which is five years younger than typically recommended among the adult population). Those who have received lung transplants are recommended to get their screenings at the age of 30, due to the aforementioned risks that come with organ transplantation and CRC development. 

Outside of preventative screenings, monitoring CF and CRC requires collaborative efforts among different healthcare providers as well as the individual themselves. The important factor here is that CF patients are made aware of their increased risk of getting CRC, and have a support system in navigating appointments, physician communication, screenings, etc. 

Monitoring one condition alone is extremely stressful and taxing on an individual, let alone having to deal with two. The American Cancer Society has a list of psychosocial resources for individuals who need support with navigating their healthcare, while also helping provide financial assistance, individual therapy, and group therapy. Health concerns are never easy to deal with, and it is always okay to reach out for help. 

 

Parker Lynch is a Colorectal Cancer Prevention Intern with the Colon Cancer Foundation.

Image credit: Gordon Johnson from Pixabay

By Anna Payne

Thank you to the Cystic Fibrosis Research Institute for letting us share this blog with our audience!

Last year, at the age of 34, I was living in a place of hope. I was thriving on Trikafta, working full time, serving as elected Supervisor for Middletown Township in Bucks County Pennsylvania, and acting as Vice-Chair of the Pennsylvania Rare Disease Advisory Council. For the first time in a long time, I had hope for a future of a “healthy” life. I had big dreams and a lot of things I wanted to accomplish. But then I found a mass in my groin, and after a long, painful and circuitous diagnostic journey, that included numerous invasive tests and long waits between them, I received the news no one wants to hear. “You have Stage 4 colon cancer.”

Known as the “silent cancer,” colorectal cancer remains the third leading cause of cancer-related deaths in the U.S. among the general population. Those with cystic fibrosis have a significantly higher risk of colon cancer than the general population. For those with CF who have not had a transplant, their risk of colon cancer is five to ten times higher, while individuals with CF post-lung transplant have twenty times the risk as the general population.

What makes us especially vulnerable is that colon cancer symptoms can and often do mimic issues that we CF survivors experience daily. More research is needed to determine exactly why we’re at such elevated risk for the disease, but it’s believed to be linked to a mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) gene.

The most effective tool for preventing this silent disease is a colonoscopy. Colon cancer always starts in the form of polyps, which if found early can be removed prior to becoming malignant. Colonoscopies are recommended for the general population at 45, yet despite our highly elevated risk, the current recommendation for a first screening colonoscopy for a person with CF is 40. That’s too late and must change. Screenings can prevent about 60 percent of colorectal cancer deaths.

I was 34 years old when diagnosed; I had few symptoms and no known family history. Colon cancer grows slowly, and it’s possible it’s been in me for years. I initially sensed that something was wrong when I had minor digestive issues. They persisted, but I second-guessed myself. Then I found a mass in my groin about the size of a dime.

After an inconclusive ultrasound, and while waiting for an appointment with a general surgeon, the lump grew to the size of a walnut. I went to my CF team for help. They found a bowel blockage, a common condition for those with cystic fibrosis known as Distal Intestinal Obstruction Syndrome, or DIOS. We hoped a colon cleanse would clear the blockage, but deep down I knew it was something more serious.

After a CAT scan and a biopsy of the groin mass, came the bad news. Cancer. I burst into tears. A PET scan then revealed the cancer had spread to other organs, including my ovaries, liver – which had 14 lesions – and lymph nodes.

After thriving on modulators, I have been transformed by cancer back into that sick, little vulnerable girl with CF who spent many nights curled up in a hospital bed, unsure of her future. I am now undergoing aggressive chemotherapy, requiring me to be outfitted with a take-home pump. Five times a week, I’m hooked up to an IV pole at home, on fluids to help me re-hydrate. Chemotherapy leaves me fatigued and immunocompromised, susceptible to infections and viruses that can be deadly.

Naturally, that’s required me to adjust my social life, relying on a network of friends. Work has taken a backseat to the battle at hand, but my supportive employer allows me to work remotely — as much as I’m able. My wonderful colleagues have carried the load in my absence. I miss them. I’ve even come to miss the 45-minute commute to my office with a stop to get a hot tea at Dunkin’.

Simple joys like eating — which most of us take for granted — are now a chore. I eat for calories, not pleasure. My diet changed drastically, and I no longer enjoy foods I’d grown up eating, such as macaroni and cheese and steak. If you looked in my cabinets now, you’d mainly find massive amounts of Fruit Loops and Apple Jacks.

I was shocked when my platinum blonde hair – with blue streaks – fell out in clumps. Losing hair is traumatic – it’s about body image, one’s sense of self, and feeling normal. Many have told me not to worry, that it will grow back, but I have no idea how long I will be on chemo, and whether that is true. While I have multiple wigs that allow me to feel like a different superstar each day, and a wide array of knitted hats, I often scrap these so I can emulate my idol, the Rock.

As a little girl, I spent a lot of time inpatient at St. Christopher’s Hospital for Children in Philadelphia. Watching the Rock on the weekly Smackdown was a great escape. Amazingly, the Rock learned about my diagnosis and sent me a heartfelt video wishing me luck in my fight. It’s been viewed millions of times on his Instagram page, and has allowed me to feel less isolated, with a virtual connection to countless people who channel their positivity toward me.

Prior to my diagnosis with colon cancer, I planned to travel across the globe. I wanted to hold a koala bear in Australia and visit Costa Rica. I planned to run for higher elected office. I had hopes and dreams that have been put on pause. I live in a world of uncertainty. Once again, I am learning to be comfortable living in the uncomfortable.

As science improves and evolves, so should our thinking. Cancer screenings must become a normal routine for cystic fibrosis adults, and the sooner the better. My hope is that the recommended age for a first colonoscopy will be lowered to 25 years for those with CF.

But you don’t have to wait for that to happen. If you have symptoms, don’t write them off as the usual CF GI issues. Go and get screened. You may end up saving your own life.

 

Image credit: David Sánchez-Medina Calderón from Pixabay

Welcome back to our ongoing series exploring the intricate relationship between colorectal cancer (CRC) and various health conditions. Our previous post uncovered the association between CRC and diabetes mellitus. Today, we embark on a new journey as we unravel the intriguing connection between cardiovascular disease and CRC. Through uncovering the latest research, we aim to shed light on shared risk factors and significant findings that emphasize the importance of addressing both these conditions. 

Shared Risk Factors Identified

A meta-analysis of 84 studies involving over 52 million participants has unveiled a clear association between cardiovascular disease and CRC. The analysis confirmed that individuals harboring risk factors for cardiovascular diseases, such as obesity, high body-mass index, diabetes, and smoking, face an increased likelihood of developing CRC. These shared risk factors act as crucial indicators of potential health complications. 

Intriguingly, the same study revealed a compelling insight: individuals who are obese and exhibit at least one metabolic abnormality, such as hyperglycemia, dyslipidemia, or hypertension, face a 31% higher risk of being diagnosed with CRC. This underscores the significance of managing weight and addressing metabolic health concerns as part of a comprehensive approach to reducing the risk of developing both cardiovascular disease and CRC. 

A study conducted in Taiwan involving a substantial cohort of over 94,000 patients delved into the relationship between cardiovascular disease and CRC prognosis. The findings demonstrated that individuals diagnosed with CRC are more prone to developing cardiovascular disease, particularly coronary heart disease, within the first three years following their CRC diagnosis. This highlights the need for comprehensive health management strategies encompassing cancer treatment and cardiovascular health for CRC patients. 

Uninsured and the Risk of CRC, Cardiovascular Disease 

In a noteworthy cohort study published in June 2022, researchers examined over 197,000 cases of CRC from the SEER database to study the prognosis of CRC patients. They assessed mortality trends due to cardiovascular disease and identified risk factors to develop a predictive model for cardiovascular disease outcomes in this population. The study unveiled a significant risk factor: lack of insurance coverage. It was found that CRC patients without insurance faced a higher likelihood of cardiovascular death than those with health coverage. These findings emphasize the need for further exploration of the link between social determinants of health and health outcomes. 

As we conclude our exploration of the connection between cardiovascular disease and CRC, it becomes increasingly evident that these two conditions share risk factors and impact each other’s prognosis. This knowledge encourages a holistic approach to

healthcare that prioritizes overall well-being and seeks to achieve optimal health outcomes for individuals facing these conditions. By addressing common risk factors, focusing on metabolic health, and implementing comprehensive healthcare strategies, we can strive to minimize the impact of both cardiovascular disease and CRC.

 

Emma Edwards is a Colorectal Cancer Prevention Intern with the Colon Cancer Foundation.

As colorectal cancer (CRC) rates rise globally, especially in the early-onset population, identifying high-level risk factors for developing this disease becomes ever more critical. The link between diabetes and the incidence of colon and rectal cancers was discovered in 1998 and has been well-established since then, as many trials have uncovered the strength of the association between these two diagnoses. 

In 2013, a meta-analysis of 26 observational studies among more than 200,000 patients assessed the relationship between CRC and all-cause mortality (death due to any cause), cancer-specific mortality, and disease-free survival. Interestingly, diabetes was found associated with poorer outcomes for all three categories. A key finding from this study: individuals who have diabetes and CRC have a 17% increased risk of death due to any cause.

A 2017 article on the epidemiology of the association between diabetes and CRC delved into the potential molecular mechanisms of this association and the therapeutic implications of treating both diseases, and found that: 

  • Diabetes mellitus and CRC have many overlapping risk factors
  • Hyperinsulinemia, hyperglycemia, and hyperlipidemia may all play a role in the development of these dual diagnoses
  • Environmental and genetic risk factors may also play a role
  • Promising therapies for treating a dual diagnosis are statins, ACE inhibitors, anti-fibrotic agents, among others

A study among 2023 individuals evaluated the association between type 2 diabetes risk, cholesterol levels, triglyceride levels, and CRC. Additionally, the study assessed the association between Lynch syndrome—which results from a genetic mutation that can lead to CRC—and these other variables, and found that:

  • Individuals with Lynch syndrome, type 2 diabetes, and elevated cholesterol levels had an increased risk of CRC
  • High triglyceride levels in those with Lynch syndrome did not increase CRC risk 
  • Hyperinsulinemia and hyperglycemia in diabetic patients may increase the risk of CRC

A more recent study looked at the clinical and therapeutic implications of diabetes treatment and CRC risk. They found that while not always the case, these drugs often reduced the risk of dual diagnosis. Newer therapies, such as anticancer drugs that target IGF-1R and RAGE receptors (receptors for advanced glycation end products), may also help prevent and treat diabetes-induced CRC. 

It will be essential for future research to continue to explore the mechanisms behind these two diseases and to collaborate to create effective treatments for individuals experiencing dual diagnoses.

 

Emma Edwards is a Colorectal Cancer Prevention Intern with the Colon Cancer Foundation.