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Huang F, Li S, Chen W, Han Y, Yao Y, Yang L, Li Q, Xiao Q, Wei J, Liu Z, Chen T, Deng X. Postoperative Probiotics Administration Attenuates Gastrointestinal Complications and Gut Microbiota Dysbiosis Caused by Chemotherapy in Colorectal Cancer Patients. Nutrients 2023; 15:nu15020356. [PMID: 36678227 PMCID: PMC9861237 DOI: 10.3390/nu15020356] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 01/04/2023] [Accepted: 01/09/2023] [Indexed: 01/12/2023] Open
Abstract
The current study aims to evaluate the potential roles of taking probiotics postoperatively in attenuating the gastrointestinal complications and disturbed gut microbiota in colorectal cancer (CRC) patients undergoing chemotherapy. One hundred eligible CRC patients who were treated with radical surgery and needed to receive chemotherapy were recruited. Half of them were randomly assigned to the Probio group to take a probiotic combination from post-operation to the end of the first chemotherapeutic course. The other half of patients taking placebo instead were classified as the Placebo group. Gastrointestinal complications such as nausea, acid reflux, abdominal pain, abdominal distention, constipation, and diarrhea were recorded during chemotherapy. Fecal samples were collected preoperatively and after the first cycle of postoperative chemotherapy for 16S rRNA high-throughput sequencing and short-chain fatty acids (SCFAs) analysis. Results showed that probiotics administration could effectively reduce chemotherapy-induced gastrointestinal complications, particularly in diarrhea (p < 0.01). Additionally, chemotherapy also reduced the bacterial diversity indexes of the gut microbiota in CRC patients, which could be significantly increased by taking probiotics. Moreover, this chemotherapy caused significant changes in the composition of the gut microbiota, as indicated by decreased phylum levels of Firmicutes and increased Bacteroidetes, Proteobacteria, and Verrucomicrobia. In particular, several bacterial genera such as Akkermansia and Clostridium were significantly increased, while Prevotella, Lactobacillus, and Roseburia were decreased (p < 0.05). However, probiotic administration could effectively restore these taxa changes both at the phylum and genus levels, and mildly increase the genus levels of Bifidobacterium, Streptococcus, and Blautia. Furthermore, probiotics could also promote the production of SCFAs, particularly increasing acetate, butyrate, and propionate (p < 0.0001). These results support the beneficial effects of the probiotic interventions as novel alternative or complementary strategies in chemoprevention.
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Affiliation(s)
- Feng Huang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Shengjie Li
- Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Wenjie Chen
- Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Yiyang Han
- Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Yue Yao
- Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Liang Yang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Qiang Li
- Department of Vascular Surgery, Tengzhou Central People’s Hospital, Zaozhuang 277599, China
| | - Qun Xiao
- Department of Hepatobiliary Pancreatic Splenic Surgery, The First Affiliated Hospital of Hunan College of Traditional Chinese Medicine, Zhuzhou 410208, China
| | - Jing Wei
- Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Zhaoxia Liu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Tingtao Chen
- Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
- Correspondence: (T.C.); (X.D.); Tel.: +86-791-8382-7165 (T.C.)
| | - Xiaorong Deng
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
- Correspondence: (T.C.); (X.D.); Tel.: +86-791-8382-7165 (T.C.)
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Gao Z, Cao H, Xu X, Wang Q, Wu Y, Lu Q. Prognostic value of lymphovascular invasion in stage II colorectal cancer patients with an inadequate examination of lymph nodes. World J Surg Oncol 2021; 19:125. [PMID: 33866973 PMCID: PMC8054379 DOI: 10.1186/s12957-021-02224-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 04/01/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Lymphovascular invasion (LVI) is defined as the presence of cancer cells in lymphatics or blood vessels. This study aimed to evaluate the prognostic value of LVI in stage II colorectal cancer (CRC) patients with inadequate examination of lymph nodes (ELNs) and further combined LVI with the TNM staging system to determine the predictive efficacy for CRC prognosis. Adjuvant chemotherapy (ACT) was then evaluated for stage II CRC patients with LVI positivity (LVI+). METHODS In order to avoid the effects of different ACT regimens, among 409 stage II patients, we chose 121 patients who received FOLFOX regimen and the 144 patients who did not receive ACT as the object of study. LVI was examined by hematoxylin-eosin (HE) staining. Kaplan-Meier analysis followed by a log-rank test was used to analyze survival rates. Univariate and multivariate analyses were performed using a Cox proportional hazards model. Harrell's concordance index (C-index) was used to evaluate the accuracy of different systems in predicting prognosis. RESULTS The LVI+ status was significantly associated with pT stage, degree of differentiation, tumor stage, serum CEA and CA19-9 levels, perineural invasion (PNI), tumor budding (TB), and KRAS status. The 5-year overall survival (OS) rate of stage II patients with < 12 ELNs and LVI+ was less than stage IIIA. Multivariate analyses showed that LVI, pT-stage, serum CEA and CA19-9 levels, PNI, TB, and KRAS status were significant prognostic factors for stage II patients with < 12 ELNs. The 8th TNM staging system combined with LVI showed a higher C-index than the 8th TNM staging system alone (C-index, 0.895 vs. 0.833). Among patients with LVI+, the ACT group had a significantly higher 5-year OS and 5-year disease-free survival (DFS) than the surgery alone (SA) group (5-year OS, 66.7% vs. 40.9%, P = 0.004; 5-year DFS, 64.1% vs. 36.3%, P = 0.002). CONCLUSIONS LVI is an independent prognostic risk factor for stage II CRC patients. Combining LVI with the 8th TNM staging system improved the predictive accuracy for CRC prognosis. ACT in stage II CRC patients with LVI+ is beneficial for survival.
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Affiliation(s)
- Zhenyan Gao
- Department of General Surgery, The Third Affiliated Hospital of Soochow University and The First People's Hospital of Changzhou, 185 Juqian Street, Changzhou, 213000, Jiangsu, China
| | - Huihua Cao
- Department of General Surgery, Traditional Chinese Medicine Hospital of Kunshan, Suzhou, 215000, Jiangsu, China
| | - Xiang Xu
- Department of General Surgery, The Third Affiliated Hospital of Soochow University and The First People's Hospital of Changzhou, 185 Juqian Street, Changzhou, 213000, Jiangsu, China
| | - Qing Wang
- Department of General Surgery, The Third Affiliated Hospital of Soochow University and The First People's Hospital of Changzhou, 185 Juqian Street, Changzhou, 213000, Jiangsu, China
| | - Yugang Wu
- Department of General Surgery, The Third Affiliated Hospital of Soochow University and The First People's Hospital of Changzhou, 185 Juqian Street, Changzhou, 213000, Jiangsu, China.
| | - Qicheng Lu
- Department of General Surgery, The Third Affiliated Hospital of Soochow University and The First People's Hospital of Changzhou, 185 Juqian Street, Changzhou, 213000, Jiangsu, China.
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The alterations of microbiota and pathological conditions in the gut of patients with colorectal cancer undergoing chemotherapy. Anaerobe 2021; 68:102361. [PMID: 33781900 DOI: 10.1016/j.anaerobe.2021.102361] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/10/2021] [Accepted: 03/15/2021] [Indexed: 02/08/2023]
Abstract
Colorectal cancer (CRC) has become a serious threat to human life and health. Most patients are diagnosed at the late stage of advanced CRC, resulting in losing their best opportunity for surgical treatment. Chemotherapy plays a crucial role in the control and treatment of advanced CRC. However, the cytotoxicity of chemotherapeutic drugs can easily cause the imbalance of gut flora, damage the barrier of the gastrointestinal mucosa, and mediate mucosal inflammation of the digestive tract, which is called "gastrointestinal mucositis." This mucositis can affect the quality of life of the host and even threaten their lives. Several studies reported the association between chemotherapy-mediated gastrointestinal mucositis in CRC and gut dysbiosis. However, the underlying mechanisms of this association are still unclear. The alternative or complementary treatments to reshape gut microbiota and slow down the side effects of chemotherapy have shown the improvement of gastrointestinal mucositis following chemotherapy in the CRC condition. This review will summarize and discuss the evidence of the association between chemotherapy-mediated gastrointestinal mucositis in CRC and altered gut microbiota from in vivo and clinical studies. The possible mechanisms of gastrointestinal mucositis, including the destruction of the gastrointestinal mucosal barrier, the induction of gut dysbiosis, and histopathological changes in the gut of CRC with chemotherapy will be illustrated. In addition, the nonpharmacological interventions and phytochemical extracts by using the manipulation of the microbial population for therapeutic purposes for relieving side effects of chemotherapy as well as a cancer treatment would be summarized and discussed in this review.
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Simillis C, Singh HKSI, Afxentiou T, Mills S, Warren OJ, Smith JJ, Riddle P, Adamina M, Cunningham D, Tekkis PP. Postoperative chemotherapy improves survival in patients with resected high-risk Stage II colorectal cancer: results of a systematic review and meta-analysis. Colorectal Dis 2020; 22:1231-1244. [PMID: 31999888 DOI: 10.1111/codi.14994] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 01/07/2020] [Indexed: 02/08/2023]
Abstract
AIM The aim was to assess the benefit of adjuvant chemotherapy in high-risk Stage II colorectal cancer. METHOD A systematic literature review and meta-analysis was performed comparing survival in patients with resected Stage II colorectal cancer and high-risk features having postoperative chemotherapy vs no chemotherapy. RESULTS Of 1031 articles screened, 29 were included, reporting on 183 749 participants. Adjuvant chemotherapy significantly improved overall survival [hazard ratio (HR) 0.61, P < 0.0001], disease-specific survival (HR = 0.73, P = 0.05) and disease-free survival (HR = 0.59, P < 0.0001) compared to no chemotherapy. Adjuvant chemotherapy significantly increased 5-year overall survival (OR = 0.53, P = 0.0008) and 5-year disease-free survival (OR = 0.50, P = 0.001). Overall survival and disease-free survival remained significantly prolonged during subgroup analysis of studies published from 2015 onwards (HR = 0.60, P < 0.0001; HR = 0.65, P = 0.0001; respectively), in patients with two or more high-risk features (HR = 0.59, P = 0.0001; HR = 0.70, P = 0.03; respectively) and in colon cancer (HR = 0.61, P < 0.0001; HR = 0.51, P = 0.0001; respectively). Overall survival, disease-specific survival and disease-free survival during subgroup analysis of individual high-risk features were T4 tumour (HR = 0.58, P < 0.0001; HR = 0.50, P = 0.003; HR = 0.75, P = 0.05), < 12 lymph nodes harvested (HR = 0.67, P = 0.0002; HR = 0.80, P = 0.17; HR = 0.72, P = 0.02), poor differentiation (HR = 0.84, P = 0.35; HR = 0.85, P = 0.23; HR = 0.61, P = 0.41), lymphovascular or perineural invasion (HR = 0.55, P = 0.05; HR = 0.59, P = 0.11; HR = 0.76, P = 0.05) and emergency surgery (HR = 0.60, P = 0.02; HR = 0.68, P = 0.19). CONCLUSION Adjuvant chemotherapy in high-risk Stage II colorectal cancer results in a modest survival improvement and should be considered on an individual patient basis. Due to potential heterogeneity and selection bias of the included studies, and lack of separate rectal cancer data, further large randomized trials with predefined inclusion criteria and standardized chemotherapy regimens are required.
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Affiliation(s)
- C Simillis
- Department of Colorectal Surgery, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK.,Department of Surgery and Cancer, Imperial College, London, UK
| | - H K S I Singh
- Department of Colorectal Surgery, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - T Afxentiou
- Department of Clinical Oncology, Imperial College Healthcare NHS Trust, London, UK
| | - S Mills
- Department of Colorectal Surgery, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK.,Department of Surgery and Cancer, Imperial College, London, UK
| | - O J Warren
- Department of Colorectal Surgery, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK.,Department of Surgery and Cancer, Imperial College, London, UK
| | - J J Smith
- Department of Colorectal Surgery, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK.,Department of Surgery and Cancer, Imperial College, London, UK
| | - P Riddle
- Department of Clinical Oncology, Imperial College Healthcare NHS Trust, London, UK
| | - M Adamina
- Department of Surgery, Cantonal Hospital Winterthur, Winterthur, Switzerland
| | - D Cunningham
- Gastrointestinal Unit, The Royal Marsden Hospital, London, UK
| | - P P Tekkis
- Department of Colorectal Surgery, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK.,Department of Surgery and Cancer, Imperial College, London, UK.,Gastrointestinal Unit, The Royal Marsden Hospital, London, UK
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