We aimed to understand how all-trans retinoic acid (ATRA), a form of vitamin A, influences lung cancer development caused by benzo(a)pyrene (B(a)P) exposure in mice. The study involved a thorough examination of the overall health of the mice, including body and organ weights, blood tests, and tissue analysis for any signs of damage or inflammation.
In our observations, B(a)P significantly harmed the mice, leading to weight loss and increased organ weight, particularly in the liver and lungs. Blood analysis revealed a concerning decrease in healthy blood cells and an increase in inflammatory markers, indicating an unhealthy state. However, we found that when these mice were treated with ATRA, their conditions improved remarkably.
The treated mice regained weight, saw improvements in their blood parameters, and exhibited lower levels of cancer-related inflammation. Notably, the expression of the COX-2 gene—an important player in inflammation and cancer—was dramatically reduced with ATRA treatment in both lung and liver tissues. This suggests that ATRA effectively counteracts the inflammatory effects and may help prevent the initial stages of cancer caused by B(a)P exposure.
Overall, our findings highlight the potential of vitamin A in mitigating some of the risks associated with lung cancer development due to environmental carcinogens, supporting further exploration of its role in cancer prevention.
Read More
8
Vitamin A's role in lung cancer
An Efficient Suppression of EGFR and B-Raf mRNA Overexpression in the Lung of Benzo[a]pyrene-induced mice by Cationic Lipo-ATRA Nanoformulation.
We explored how vitamin A, specifically all-trans retinoic acid (ATRA), could impact lung cancer by studying mice that were induced with lung cancer through benzo[a]pyrene. We gave some mice a traditional form of ATRA and others a novel cationic liposome formulation, lipo-ATRA, to see which one would perform better in reducing the expression of certain cancer-related genes.
The results showed that the cationic lipo-ATRA treatment significantly improved the availability of ATRA in lung tissues and effectively suppressed the expression levels of the epidermal growth factor receptor (EGFR) and B-Raf genes. These genes are known to play a crucial role in cancer development, so their suppression suggests a positive effect of ATRA, especially in its nanoformulation.
Our findings indicate that lipo-ATRA could be a promising strategy for managing lung cancer by targeting specific oncogenes. This research provides valuable insights into potential avenues for improving cancer treatments using vitamin A.
Read More
8
Vitamin A's therapeutic effects on SACC
Increased retinoic acid signaling decreases lung metastasis in salivary adenoid cystic carcinoma by inhibiting the noncanonical Notch1 pathway.
We investigated how vitamin A, specifically in the form of all-trans retinoic acid (ATRA), impacts lung metastasis in salivary adenoid cystic carcinoma (SACC). This study highlighted the significant role of the retinoic acid signaling pathway in potentially controlling cancer spread. Through advanced techniques like single-cell RNA sequencing, we identified various cell types present in both primary tumors and lung metastases, helping us understand the aggressive nature of this cancer.
Our findings suggested that ATRA works by correcting abnormal cell differentiation caused by faulty Notch1 or MYB genes. Additionally, we discovered that a deficiency in the retinoic acid system might contribute to the increased likelihood of lung metastasis. By focusing on how ATRA affects these cancer cells, we highlighted the vitamin’s importance in both the diagnosis and treatment of SACC.
Overall, this research emphasizes that boosting our vitamin A system could play a crucial role in managing the challenges posed by lung cancer metastasis in adenoid cystic carcinoma. The study opens up avenues for further exploration into vitamin A as a therapeutic option for patients struggling with this type of cancer.
Read More
Most Useful Reviews
7.5
Effective for inflammation
6 people found this helpful
This medication aids inflammation of the bronchi and lungs, typically taken as one capsule daily during illness, particularly useful with Covid. Our family used it when unwell. If this review is helpful, please like it – it’s appreciated!
Read More
6
Sore lungs relief
2 people found this helpful
Excellent remedy for sore lungs and throat; corks started to come out during tonsillitis. You need to take it with vitamins D and E to avoid excess. I sometimes take D less frequently.
Read More
1
Not for smokers
1 people found this helpful
This product is excellent for non-smokers but is ineffective for those who smoke, as it could potentially lead to lung cancer.
We aimed to understand how all-trans retinoic acid (ATRA), a form of vitamin A, influences lung cancer development caused by benzo(a)pyrene (B(a)P) exposure in mice. The study involved a thorough examination of the overall health of the mice, including body and organ weights, blood tests, and tissue analysis for any signs of damage or inflammation.
In our observations, B(a)P significantly harmed the mice, leading to weight loss and increased organ weight, particularly in the liver and lungs. Blood analysis revealed a concerning decrease in healthy blood cells and an increase in inflammatory markers, indicating an unhealthy state. However, we found that when these mice were treated with ATRA, their conditions improved remarkably.
The treated mice regained weight, saw improvements in their blood parameters, and exhibited lower levels of cancer-related inflammation. Notably, the expression of the COX-2 gene—an important player in inflammation and cancer—was dramatically reduced with ATRA treatment in both lung and liver tissues. This suggests that ATRA effectively counteracts the inflammatory effects and may help prevent the initial stages of cancer caused by B(a)P exposure.
Overall, our findings highlight the potential of vitamin A in mitigating some of the risks associated with lung cancer development due to environmental carcinogens, supporting further exploration of its role in cancer prevention.
Read More
8
ACR enhances lung cancer treatment
Acyclic Retinoid Inhibits the EGFR/AKT Signaling Pathway and Cancels Cisplatin-resistant Cell Characteristics.
We explored the potential of acyclic retinoid (ACR), a derivative of vitamin A, in treating lung cancer, particularly focusing on non-small cell lung cancer (NSCLC) and cisplatin-resistant cells. This research is vital because NSCLC is one of the leading causes of cancer-related deaths, and treatments like cisplatin often face challenges due to resistance.
In our study, we observed that ACR can significantly inhibit the EGFR/AKT signaling pathway, which is heavily involved in the progression of lung cancer. We treated human NSCLC A549 cells, as well as cisplatin-resistant A549 (A549CR) cells, with ACR alone and in combination with cisplatin. We assessed various factors including cell viability, apoptosis rates, and the levels of crucial signaling proteins.
The results revealed that ACR not only decreased cell viability but also enhanced the sensitivity of both NSCLC and resistant cells to cisplatin treatment. This suggests that ACR could play an important role in improving therapeutic outcomes for lung cancer patients, especially those who have developed resistance to current treatments.
Our findings indicate that incorporating ACR into treatment regimens may provide an innovative strategy for tackling lung cancer and managing cisplatin resistance, which is a significant hurdle in current cancer therapies.
Read More
8
Vitamin A's role in lung cancer
An Efficient Suppression of EGFR and B-Raf mRNA Overexpression in the Lung of Benzo[a]pyrene-induced mice by Cationic Lipo-ATRA Nanoformulation.
We explored how vitamin A, specifically all-trans retinoic acid (ATRA), could impact lung cancer by studying mice that were induced with lung cancer through benzo[a]pyrene. We gave some mice a traditional form of ATRA and others a novel cationic liposome formulation, lipo-ATRA, to see which one would perform better in reducing the expression of certain cancer-related genes.
The results showed that the cationic lipo-ATRA treatment significantly improved the availability of ATRA in lung tissues and effectively suppressed the expression levels of the epidermal growth factor receptor (EGFR) and B-Raf genes. These genes are known to play a crucial role in cancer development, so their suppression suggests a positive effect of ATRA, especially in its nanoformulation.
Our findings indicate that lipo-ATRA could be a promising strategy for managing lung cancer by targeting specific oncogenes. This research provides valuable insights into potential avenues for improving cancer treatments using vitamin A.
Read More
8
Vitamin A's Mixed Effects on Cancer
A novel retinoic acid receptor-γ agonist antagonizes immune checkpoint resistance in lung cancers by altering the tumor immune microenvironment.
We explored the impact of retinoic acid, a form of vitamin A, on lung cancer growth in our study. By administering all-trans-retinoic acid (ATRA) to mice, we found that while it reduced cancer growth in immune-competent mice, it did not have the same effect in those with compromised immune systems. This led us to consider the important role the tumor microenvironment plays in cancer treatment.
We observed that depleting CD8 T cells nullified the positive effects of ATRA, indicating the necessity of a healthy immune response in combatting lung cancer. Additionally, when we combined ATRA with immune checkpoint inhibitors—the drugs that block cancer's ability to evade the immune system—it did not enhance anti-tumor effects as hoped.
To find a solution, we turned to an RARγ agonist, known as IRX4647. When we paired IRX4647 with an anti-PD-L1 blockade, we saw significant tumor suppression, particularly in resisting cancer models. This combination treatment resulted in increased CD4 T cells in tumors, which suggests a shift in the immune landscape that could support fighting cancer.
Despite these promising results, it's worth noting that IRX4647 alone did not demonstrate strong effects on lung cancer growth in laboratory settings. Our findings underscore the complexity of cancer treatment and the need for clinical trials to evaluate RARγ agonists further in combination with existing therapies.
Read More
8
Vitamin A's role in lung cancer
Diet as a Factor Supporting Lung Cancer Treatment-A Systematic Review.
We examined how vitamin A, along with other antioxidants, may play a role in the treatment of lung cancer. Our review of various studies highlighted that vitamin A, as part of a broader antioxidant defense, has potential benefits, but its specific impact on lung cancer on its own remains less clear.
The studies we evaluated suggest that a combination of antioxidants, including vitamin C, vitamin E, selenium, and zinc, work together to strengthen the body's defense mechanisms against damage. Moreover, we noted that vitamin A might enhance overall health when included in a supportive dietary plan, especially alongside treatments like chemotherapy and radiotherapy.
Increased intake of protein and omega-3 fatty acids is also emphasized, as they can improve the quality of life and functional outcomes for lung cancer patients. Although vitamin A shows promise as part of a nutritional approach to lung cancer treatment, isolating its specific effects is challenging due to the simultaneous involvement of other nutrients.
This medication aids inflammation of the bronchi and lungs, typically taken as one capsule daily during illness, particularly useful with Covid. Our family used it when unwell. If this review is helpful, please like it – it’s appreciated!
Read More
6
Sore lungs relief
2 people found this helpful
Excellent remedy for sore lungs and throat; corks started to come out during tonsillitis. You need to take it with vitamins D and E to avoid excess. I sometimes take D less frequently.
Read More
1
Not for smokers
1 people found this helpful
This product is excellent for non-smokers but is ineffective for those who smoke, as it could potentially lead to lung cancer.
Read More
0
Risk for smokers
1 people found this helpful
Smokers, former smokers, and asbestos workers should be cautious of isolated beta-carotene supplements due to evidence suggesting they may increase the risk of lung cancer.
Read More
Frequently Asked Questions
Lung cancer is a type of cancer that begins in the lungs, which are vital organs located in the chest responsible for breathing and oxygen exchange. There are two primary types of lung cancer: non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC). NSCLC accounts for about 85% of lung cancer cases and typically grows slower than SCLC, which is more aggressive and spreads quickly. Common risk factors for lung cancer include smoking, exposure to secondhand smoke, radon gas, and certain occupational hazards, making it essential to take preventive measures if you are at risk.
Symptoms of lung cancer can be subtle in the early stages, often including a persistent cough, chest pain, breathlessness, weight loss, and coughing up blood. Given that many individuals may not experience noticeable symptoms until the disease has progressed, regular check-ups and screenings are crucial, especially for those at higher risk. Treatment options for lung cancer may involve surgery, chemotherapy, radiation therapy, targeted therapy, or a combination of these approaches, depending on the cancer's type and stage. As research advances, new treatments are being developed, offering hope for improved survival rates and quality of life for those diagnosed.
Beta carotene is a natural pigment found in many fruits and vegetables, particularly those that are orange, yellow, and green. It is a type of carotenoid, which is a class of antioxidants that give plants their vibrant colors. The body converts beta carotene into vitamin A (retinol), which is essential for maintaining healthy vision, skin, and immune function. Foods rich in beta carotene include carrots, sweet potatoes, butternut squash, and leafy greens like spinach and kale.
In addition to its role in promoting overall health, beta carotene is attractive to those seeking to enhance their diets with antioxidant-rich foods. While supplementation can be beneficial for those with specific deficiencies, obtaining nutrients through whole foods is generally recommended. Most people can safely consume beta carotene through their diet, but it's worth noting that excessive intake from supplements can lead to skin discoloration and other health issues. Therefore, incorporating a variety of colorful fruits and vegetables into your daily meals is the best way to enjoy the benefits of beta carotene while ensuring a balanced intake of essential nutrients.
The scientific research points to the potential benefits of vitamin A, particularly in its forms such as acyclic retinoid (ACR) and all-trans retinoic acid (ATRA), in the treatment and management of lung cancer, especially in the context of non-small cell lung cancer (NSCLC) and resistance to commonly used chemotherapy like cisplatin. For instance, ACR has been shown to inhibit key signaling pathways involved in lung cancer progression and improve treatment outcomes, suggesting its role in enhancing sensitivity to chemotherapeutic agents [1]. Furthermore, studies have demonstrated that ATRA, especially when delivered through innovative formulations like lipo-ATRA, effectively reduces cell viability in lung cancer cells, thereby showcasing the promise of optimizing vitamin A delivery for therapeutic use [8].
However, while there are promising findings, the evidence is mixed when it comes to overall survival rates and lung cancer risk in populations with varying dietary habits. Some studies suggest that higher intakes of vitamin A may even correlate with increased lung cancer risk among specific groups, notably smokers [7]. Additionally, while retinoids may aid in reducing cancer recurrence and improving patient responses, they have not uniformly demonstrated significant survival benefits across all cancer types, including lung cancer [6]. Therefore, while there is encouraging research on the role of vitamin A in lung cancer treatment, further investigation is warranted to fully understand its efficacy and any associated risks.
According to user reviews, many individuals report experiencing significant improvements in respiratory symptoms after using this medication. One user highlighted its effectiveness specifically for reducing inflammation in the bronchi and lungs during illnesses like Covid, suggesting that it may help ease respiratory difficulties when taken as prescribed (Read Review). Another user noted that it was an excellent remedy for sore lungs and throat, indicating that it may assist in alleviating discomfort caused by conditions such as tonsillitis (Read Review).
However, it is crucial to bear in mind that individual results can vary. Some users cautioned about its efficacy for smokers, suggesting that while non-smokers may find it beneficial, those with a smoking history may not experience the same improvements and could even face health risks (Read Review). Therefore, while the anecdotal evidence points to positive outcomes for certain groups, it's essential to consider personal health backgrounds when evaluating its potential benefits.
Users report varying results when combining this supplement with others, particularly in the context of lung cancer management. One user emphasized the importance of taking this medication alongside vitamins D and E to prevent excess intake and enhance its effectiveness (Read Review). This combination suggests a potential synergy that may improve overall respiratory health while helping to alleviate symptoms like sore throat and lung discomfort.
However, caution is advised for individuals with a history of smoking or exposure to asbestos. Some users raised concerns that isolated beta-carotene supplements might increase the risk of lung cancer in these populations (Read Review). Others echoed that this product proves beneficial for non-smokers but noted its limited efficacy and potential risks for those who smoke (Read Review). Therefore, while combining this supplement with vitamins may offer some advantages, those with specific risk factors should proceed with caution.
7.5
Effective for inflammation
6 people found this helpful
This medication aids inflammation of the bronchi and lungs, typically taken as one capsule daily during illness, particularly useful with Covid. Our family used it when unwell. If this review is helpful, please like it – it’s appreciated!
6
Sore lungs relief
2 people found this helpful
Excellent remedy for sore lungs and throat; corks started to come out during tonsillitis. You need to take it with vitamins D and E to avoid excess. I sometimes take D less frequently.
1
Not for smokers
1 people found this helpful
This product is excellent for non-smokers but is ineffective for those who smoke, as it could potentially lead to lung cancer.
0
Risk for smokers
1 people found this helpful
Smokers, former smokers, and asbestos workers should be cautious of isolated beta-carotene supplements due to evidence suggesting they may increase the risk of lung cancer.
8
ACR enhances lung cancer treatment
Acyclic Retinoid Inhibits the EGFR/AKT Signaling Pathway and Cancels Cisplatin-resistant Cell Characteristics.
We explored the potential of acyclic retinoid (ACR), a derivative of vitamin A, in treating lung cancer, particularly focusing on non-small cell lung cancer (NSCLC) and cisplatin-resistant cells. This research is vital because NSCLC is one of the leading causes of cancer-related deaths, and treatments like cisplatin often face challenges due to resistance.
In our study, we observed that ACR can significantly inhibit the EGFR/AKT signaling pathway, which is heavily involved in the progression of lung cancer. We treated human NSCLC A549 cells, as well as cisplatin-resistant A549 (A549CR) cells, with ACR alone and in combination with cisplatin. We assessed various factors including cell viability, apoptosis rates, and the levels of crucial signaling proteins.
The results revealed that ACR not only decreased cell viability but also enhanced the sensitivity of both NSCLC and resistant cells to cisplatin treatment. This suggests that ACR could play an important role in improving therapeutic outcomes for lung cancer patients, especially those who have developed resistance to current treatments.
Our findings indicate that incorporating ACR into treatment regimens may provide an innovative strategy for tackling lung cancer and managing cisplatin resistance, which is a significant hurdle in current cancer therapies.
8
Vitamin A delivery in lung cancer
Liposome nano-formulation with cationic polar lipid DOTAP and cholesterol as a suitable pH-responsive carrier for molecular therapeutic drug (all-trans retinoic acid) delivery to lung cancer cells.
We explored the effectiveness of all-trans retinoic acid (ATRA), a form of vitamin A, as a treatment for lung cancer, focusing on how it can be delivered more effectively to tumors. ATRA is known to have poor bioavailability and faces challenges with drug resistance, so we utilized a specially designed nano-formulation called lipo-ATRA, which uses cationic lipids.
In our study, we created lipo-ATRA using DOTAP, cholesterol, and ATRA in specific ratios to improve its delivery to lung cancer cells. We found that this formulation was stable and released ATRA more effectively in acidic environments, such as those found in many tumors. A significant finding was that ATRA uptake was seven times higher in lung cancer cells treated with lipo-ATRA compared to those receiving free ATRA.
Furthermore, we observed that lipo-ATRA treatment resulted in a marked decrease in cell viability after 48 hours compared to the free ATRA treatment. Our results indicate that using this nano-formulated carrier not only enhances the release of ATRA at acidic pH levels but also improves its uptake by lung cancer cells, signifying a promising approach for targeted therapy.
In summary, the study demonstrates that the lipo-ATRA formulation with DOTAP is a suitable tool for delivering vitamin A effectively to lung cancer cells, potentially improving treatment outcomes.
4
Vitamin A shows no protective benefit
Associations of Dietary Intakes of Carotenoids and Vitamin A with Lung Cancer Risk in a Low-Income Population in the Southeastern United States.
We looked into how vitamin A affects lung cancer risk, specifically within a diverse group of over 65,000 participants in the Southern Community Cohort Study. This large-scale research included 1,204 cases of lung cancer and focused on dietary habits involving carotenoids and vitamin A.
Interestingly, we found that individuals diagnosed with lung cancer reported lower intake of vitamin A and carotenoids compared to those without cancer. However, the overall results indicated no significant protective benefits of these nutrients against lung cancer risk.
In fact, we noted that current smokers showed a concerning positive association between dietary vitamin A intake and lung cancer risk. The data revealed that higher vitamin A consumption was linked to a 23% increase in risk for these individuals. Furthermore, African Americans consuming more vitamin A had an even greater risk for developing adenocarcinoma.
We also discovered that former smokers who consumed higher amounts of lycopene, another carotenoid, faced an increased lung cancer risk. Additionally, β-cryptoxanthin was positively associated with the risk of squamous carcinoma.
The findings suggest that more research is needed to explore these associations further, particularly considering the mixed outcomes surrounding vitamin A and lung cancer.
7
Retinoids show promise, limited scope
Retinoids in cancer chemoprevention and therapy: Meta-analysis of randomized controlled trials.
We conducted a thorough examination of how retinoids, which are derivatives of vitamin A, impact lung cancer treatment. In our analysis, we looked at data from 39 randomized controlled trials that included over 15,000 patients.
Our findings revealed that patients treated with retinoids showed a reduced rate of cancer recurrence and improved clinical responses compared to those who did not receive these treatments. However, it is important to note that when it came to overall survival rates, development of cancer, disease progression, and event-free survival, there were no significant improvements tied to retinoid treatment.
Specifically for lung cancer, the study indicated that patients experienced benefits from retinoids. Yet, these results also align with other types of cancers, like acute promyelocytic leukemia and renal cell carcinoma. In contrast, we did not find significant therapeutic effects for several other cancers, including head and neck cancer and melanoma.
Overall, while vitamin A plays a notable role in potentially preventing cancer recurrence and improving patients' responses to treatment, it does not enhance overall survival in lung cancer patients. Further research is encouraged to explore the effectiveness of retinoids in a broader range of cancers.
References
Motoyama M, Shigefuku R, Tanaka N, Nishizawa M, Oshio K, et al. Acyclic Retinoid Inhibits the EGFR/AKT Signaling Pathway and Cancels Cisplatin-resistant Cell Characteristics. Anticancer Res. 2025;45:433. doi:10.21873/anticanres.17432
Mariammal BGV, Wilson Devarajan D, Singaram V, Ravichandran R, Chandrasekharan G, et al. An Efficient Suppression of EGFR and B-Raf mRNA Overexpression in the Lung of Benzo[a]pyrene-induced mice by Cationic Lipo-ATRA Nanoformulation. Recent Pat Nanotechnol. 2025;19:131. doi:10.2174/0118722105246143231016105620
Wei CH, Huang L, Kreh B, Liu X, Tyutyunyk-Massey L, et al. A novel retinoic acid receptor-γ agonist antagonizes immune checkpoint resistance in lung cancers by altering the tumor immune microenvironment. Sci Rep. 2023;13:14907. doi:10.1038/s41598-023-41690-5
Polański J, Świątoniowska-Lonc N, Kołaczyńska S, Chabowski M. Diet as a Factor Supporting Lung Cancer Treatment-A Systematic Review. Nutrients. 2023;15. doi:10.3390/nu15061477
Zhou MJ, Yang JJ, Ma TY, Feng GX, Wang XL, et al. Increased retinoic acid signaling decreases lung metastasis in salivary adenoid cystic carcinoma by inhibiting the noncanonical Notch1 pathway. Exp Mol Med. 2023;55:597. doi:10.1038/s12276-023-00957-7
Chen S, Hu Q, Tao X, Xia J, Wu T, et al. Retinoids in cancer chemoprevention and therapy: Meta-analysis of randomized controlled trials. Front Genet. 2022;13:1065320. doi:10.3389/fgene.2022.1065320
Sun Y, Wu J, Yoon HS, Buchowski MS, Cai H, et al. Associations of Dietary Intakes of Carotenoids and Vitamin A with Lung Cancer Risk in a Low-Income Population in the Southeastern United States. Cancers (Basel). 2022;14. doi:10.3390/cancers14205159
Grace VMB, Wilson DD, Guruvayoorappan C, Danisha JP, Bonati L. Liposome nano-formulation with cationic polar lipid DOTAP and cholesterol as a suitable pH-responsive carrier for molecular therapeutic drug (all-trans retinoic acid) delivery to lung cancer cells. IET Nanobiotechnol. 2021;15:380. doi:10.1049/nbt2.12028
Grace VMB, Wilson DD, Anushya R. Regulation of inflammation and COX-2 gene expression in benzo (a) pyrene induced lung carcinogenesis in mice by all trans retinoic acid (ATRA). Life Sci. 2021;285:119967. doi:10.1016/j.lfs.2021.119967