Abstract
Pancreatic cancer represents a formidable challenge in modern oncology due to its dismal prognosis and substantial global burden. This comprehensive review examines the epidemiology, risk factors, pathophysiology, clinical presentation, diagnosis, treatment modalities, prognosis, and emerging therapies in pancreatic cancer. Epidemiological data reveal a concerning rise in incidence rates, particularly among younger cohorts and certain demographic groups. Known risk factors such as smoking, obesity, and family history are explored alongside emerging associations including changes in gut microbiota and metabolic disorders. Molecular pathways implicated in pancreatic carcinogenesis, including DNA adduct formation and genetic mutations such as KRAS, p53, and BRCA, are elucidated. The complex tumor microenvironment and stromal interactions are discussed, emphasizing their role in disease progression and therapeutic resistance. Clinical presentation, diagnostic modalities, staging systems, and challenges in early detection are outlined, followed by an overview of current treatment modalities including surgery, chemotherapy, radiation therapy, targeted therapy, immunotherapy, and palliative care. Prognostic factors and survival rates based on stage and treatment are analyzed, along with predictive biomarkers for prognosis and treatment response. Emerging therapies and research directions, including precision medicine and immunotherapy, are explored, alongside considerations for quality of life, survivorship, and psychosocial support. The article concludes with a summary of key findings, implications for clinical practice and research, and future perspectives for pancreatic cancer management and treatment.
References
- Siegel RL, Miller KD and Jemal A. “Cancer statistics, 2020”. CA: A Cancer Journal for Clinicians 70.1 (2020): 7-30.
- Bray F., et al. “Global cancer statistics 2018: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries”. CA: A Cancer Journal for Clinicians 68.6 (2018): 394-424.
- American Cancer Society. Cancer Facts & Figures 2020. Atlanta, GA: American Cancer Society (2020).
- Benzel J and Fendrich V. “Familial Pancreatic Cancer”. Oncology Research and Treatment 41.11 (2018): 611-618.
- Sung H., et al. “Emerging cancer trends among young adults in the USA: analysis of a population-based cancer registry”. The Lancet Public Health 4.3 (2019): e137-e147.
- Pereira SP., et al. “Early detection of pancreatic cancer”. Lancet Gastroenterology & Hepatology (2020).
- Naudin S., et al. “Healthy lifestyle and the risk of pancreatic cancer in the EPIC study”. European Journal of Epidemiology (2020).
- Raimondi S, Maisonneuve P and Lowenfels AB. “Epidemiology of pancreatic cancer: An overview”. Nature Reviews Gastroenterology & Hepatology 6.12 (2009): 699-708.
- Stoffel EM, Brand RE and Goggins M. “Pancreatic Cancer: Changing Epidemiology and New Approaches to Risk Assessment, Early Detection, and Prevention”. Gastroenterology 164.4 (2023): 752-765.
- Gaddam S., et al. “Incidence of Pancreatic Cancer by Age and Sex in the US, 2000-2018”. JAMA 326.20 (2021): 2075-2077.
- Fonseca AL., et al. “Disparities in Access to Oncologic Care in Pancreatic Cancer: A Systematic Review”. Ann Surg Oncol 29 (2022): 3232-3250.
- Silva-Santiseban A., et al. “Disparities in race, ethnicity, sex, and age inclusion in pancreatic cancer screening studies: A systematic review and meta-analysis”. Gastrointestinal Endoscopy (2024).
- Hu J-X., et al. “Pancreatic cancer: A review of epidemiology, trend and risk factors”. World Journal of Gastroenterology 27.27 (2021): 4298-4231.
- Maisonneuve P and Lowenfels AB. “Risk factors for pancreatic cancer: A summary review of meta-analytical studies”. International Journal of Epidemiology 44.1 (2015): 186-198.
- Maisonneuve P and Lowenfels AB. “Risk factors for pancreatic cancer: A summary review of meta-analytical studies”. International Journal of Epidemiology 44.1 (2015): 186-198.
- Stoffel EM, Brand RE and Goggins M. “Pancreatic Cancer: Changing Epidemiology and New Approaches to Risk Assessment, Early Detection, and Prevention”. Gastroenterology 164 (2023): 752-765.
- Kadlubar FF., et al. “Comparison of DNA adduct levels associated with oxidative stress in human pancreas”. Mutation Research 405 (1998): 125-133.
- Thompson PA., et al. “Comparison of DNA adduct levels associated with exogenous and endogenous exposures in human pancreas in relation to metabolic genotype”. Mutation Research 424 (1999): 263-274.
- Li D., et al. “DNA adducts, genetic polymorphisms, and K-ras mutations in human pancreatic cancer”. Mutation Research (2022): 513.37-48.
- Sohn TA and Yeo CJ. “The molecular genetics of pancreatic ductal carcinoma: a review”. Surgical Oncology 9.2 (2000): 95-101.
- Sakorafas GH and Tsiotos GG. “Molecular biology of pancreatic cancer: potential clinical implications Bio Drugs 15.7 (2001): 439-452.
- Maneshi P., et al. “Targeting Tumor-Stromal Interactions in Pancreatic Cancer: Impact of Collagens and Mechanical Traits”. Frontiers in Cell and Developmental Biology 9 (2021).
- Ren B., et al. “Tumor microenvironment participates in metastasis of pancreatic cancer”. Molecular Cancer 17.1 (2018): 108.
- Joshi VB., et al. “The Cell Biology of Metastatic Invasion in Pancreatic Cancer: Updates and Mechanistic Insights”. Cancers 15.7 (2023): 2169.
- Guo Z., et al. “Molecular profile of metastasis, cell plasticity and EMT in pancreatic cancer: a pre-clinical connection to aggressiveness and drug resistance”. Cancer Metastasis Rev (2024).
- Chen X., et al. “Metastatic pancreatic cancer: Mechanisms and detection”. Oncology Reports (2021): 231.
- Mayo Clinic. (n.d.). “Pancreatic cancer - Symptoms and causes”. Retrieved from Mayo Clinic.
- American Family Physician (AAFP). (n.d.). Pancreatic Cancer: Rapid Evidence Review.
- Lee JM and Yoon JH. “Imaging Diagnosis of Pancreatic cancer: CT and MRI”. In Pancreatic cancer (2017): 1926.
- Al-Hawary M. “Role of Imaging in Diagnosing and Staging Pancreatic Cancer”. Journal of the National Comprehensive Cancer Network 14.5S (2016).
- Chouksey A and Satishchand JP. “New Imaging Modalities for Early Diagnosis of Pancreatic Cancer”. iCliniq (2023).
- Al-Hawary M. “Assessment of pancreatic neoplasms: Review of biopsy techniques”. Journal of Gastrointestinal Surgery 11.5 (2007): 654-662.
- Wang K., et al. “Liquid biopsy techniques and pancreatic cancer: diagnosis, monitoring, and evaluation”. Molecular Cancer 22 (2023): 167.
- Gai X, Zhou C and Song Q. “Advances in pancreatic cancer biomarkers”. Expert Review of Molecular Diagnostics 20.6 (2020): 609-622.
- Jia S., et al. “Role of tumor markers in predicting the efficacy of chemotherapy in pancreatic cancer: A review”. Frontiers in Oncology 12 (2022): 772643.
- onco.com. TNM Staging of Pancreatic Cancer (2018).
- Canadian Cancer Society. (n.d.). Stages of pancreatic cancer.
- Isaji S., et al. “International consensus on definition and criteria of borderline resectable pancreatic ductal adenocarcinoma”. Pancreatology 17.5 (2017): 639-648.
- Al-Hawary M. “Imaging assessment of pancreatic cancer resect ability after neoadjuvant therapy”. American Journal of Roentgenology 210.1 (2018): 45-52.
- Katz MHG and Wolfgang CL. “Current concepts in the treatment of resectable pancreatic cancer”. Current Oncology Reports 22.9 (2020): 91.
- Daamen LA, Molenaar IQ and Groot VP. “Recent Advances and Future Challenges in Pancreatic Cancer Care: Early Detection, Liquid Biopsies, Precision Medicine, and Artificial Intelligence”. Journal of Clinical Medicine 12.23 (2023): 7485.
- Garg Sushil Kumara and Chari Suresh TB. “Early detection of pancreatic cancer”. Current Opinion in Gastroenterology 36.5 (2020): 456-461.
- Oldfield L., et al. “Challenges and Opportunities for Early Pancreatic Cancer Detection: Role for Protein Biomarkers”. In: Michalski, C., Rosendahl, J., Michl, P., Kleeff, J. (eds) Translational Pancreatic Cancer Research. Molecular and Translational Medicine. Humana, Cham (2020).
- Singhi AD., et al. “Early Detection of Pancreatic Cancer: Opportunities and Challenges”. Gastroenterology 156.7 (2019): 2024-2040.
- Farr KP., et al. “Imaging Modalities for Early Detection of Pancreatic Cancer: Current State and Future Research Opportunities”. Cancers 14.10 (2022): 2539.
- Di Martino M and El Boghdady M. “Pancreatic cancer surgery”. BMC Surg 23 (2023): 196.
- Ricky H Bhogal, Stephanos Pericleous and Aamir Z Khan. “Open and Minimal Approaches to Pancreatic Adenocarcinoma”. Gastroenterology Research and Practice 2020 (2020).
- Shah OJ and Singh M. “Developments in pancreatic cancer surgery”. Updates Surg 76 (2024): 17-22.
- M Schneider., et al. “Technical advances in surgery for pancreatic cancer”. British Journal of Surgery 108.7 (2021): 777-785.
- Kasumova GG, Conway WC and Tseng JF. “The Role of Venous and Arterial Resection in Pancreatic Cancer Surgery”. Ann Surg Oncol 25 (2018): 51-58.
- Okusaka T and Furuse J. “Recent advances in chemotherapy for pancreatic cancer: evidence from Japan and recommendations in guidelines”. J Gastroenterol 55 (2020): 369-382.
- Timothy J Brown., et al. “Advancements in systemic Therapy for pancreatic cancer”. Am Soc Clin Oncol Educ Book 43 (2023): e397082.
- Malinosky HR, Stewart JH and Moaven O. “Current Approaches to the Management of Locally Advanced Pancreatic Cancer”. Curr Surg Rep 11 (2023): 260-269.
- Malla M., et al. “The evolving role of radiation in pancreatic cancer”. Frontiers in Oncology 12 (2022): 1060885.
- Liu J., et al. “Advances in Radiation Oncology for Pancreatic Cancer: An Updated Review”. Cancers 14.23 (2022): 5725.
- Qian Y., et al. “Molecular alterations and targeted therapy in pancreatic ductal adenocarcinoma”. J Hematology Oncol 13 (2020): 130.
- Dai H., et al. “Pancreatic Cancer: Nucleic Acid Drug Discovery and Targeted Therapy”. Frontiers in Cell and Developmental Biology 10 (2022): 855474.
- Zagouri, Flora., et al. “Molecularly Targeted Therapies in Metastatic Pancreatic Cancer: A Systematic Review”. Pancreas 42.5 (2013): 760-773.
- Cheung PF, Lutz M and Siveke JT. “Immunotherapy and Combination Strategies in Pancreatic Cancer: Current Status and Emerging Trends”. Oncology Research and Treatment 41.5 (2018): 286-290.
- Brouwer TP, Vahrmeijer AL and de Miranda NFCC. “Immunotherapy for pancreatic cancer: chasing the light at the end of the tunnel”. Cell Oncol 44 (2021): 261-278.