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Colorectal cancer (CRC) is one of the most common malignancies worldwide. Ribosome biogenesis regulatory protein homolog (RRS1) is an essential factor involved in ribosome biogenesis, while its role in CRC remains largely unclear. Here, we found that RRS1 expression was significantly higher in CRC tissues compared with adjacent normal tissues. RRS1 High expression also predicted poor overall survival of CRC patients. Knockdown of RRS1 induced the G2/M cell cycle arrest, apoptosis and suppressed the proliferation of RKO and HCT-116 CRC cells. Furthermore, angiogenesis was also reduced in CRC cells after RRS1 knockdown. In addition, suppression of RRS1 blunted the tumor formation of CRC cells in nude mice. At the molecular level, silencing of RRS1 decreased the expression of M-phase inducer phosphatase 3 (CDC25C), Cyclin-dependent kinase 1 (CDK1), antigen KI-67 (KI67) and increased the protein level of cyclin-dependent kinase inhibitor 1 (CDKN1A) and tumor suppressor p53 (p53). Taken together, our findings provide evidence that RRS1 may promote the development of colon cancer. Therefore, targeting RRS1 may be a promising therapeutic strategy for CRC patients., Competing Interests: CONFLICTS OF INTEREST The authors declare no conflicts of interest.

Objective: To investigate the effects of human colon carcinoma-associated fibroblasts (CAFs) on proliferation, adhesion, migration and invasion of colon carcinoma Lovo cells., Methods: The co-culture models among colon CAFs, NFs and Lovo cell were established by conditioned medium (CM) of human colon CAFs and colon normal fibroblasts (NFs). Lovo cells in the blank control group was treated with serum-free culture medium. The effects of human colon CAFs on proliferation, adhesion, migration and invasion of colon carcinoma Lovo cells were detected by cell proliferation assay, adhesion assay, migration assay and Transwell invasion assay., Results: After co-culture with colon CAFs, the absorbance (A) value of Lovo cells was (0.667±0.059) in 48 h and (0.709±0.030) in 72 h. The A value of Lovo cells adhesion to fibronectin was (0.588±0.067). The cell mobility rates were (35.2±8.7)% in 12 h and (64.6±7.1)% in 24 h. The number of invasive cell was (56.2±4.8). All the above parameters were increased compared with those in the blank control group and NFs group (all P<0.01)., Conclusion: Human colon CAFs can promote the proliferation, adhesion, migration and invasion of colon carcinoma Lovo cells.

Objective: To explore the effect of Shen Shuai Fang in treating Chronic Renal Failure (CRF) of deficiency of spleen and kidney with turbid damp and blood stagnation symptom., Methods: 125 patients with CRF of deficiency of spleen and kidney with turbid damp and blood stagnation symptom were randomly divided into two groups, 75 patients in treatment group were treated with Shen Shuai Fang adding western medicine and the other patients in control group were treated only with western medicine. We observed the effect and indexes change including renal function, Hb, proteinuria, lipid before and after treatment., Results: After six months' treatment, the general effective rate in treatment group was 77.33%, which was higher than that in control group obviously (44.00%, P < 0.01). So treatment group was obviously better than control group on decreasing proteinuria, improving renal function, increasing Hb, ameliorating lipid metabolism (P < 0.05 or P < 0.01)., Conclusion: Shen Shuai Fang is effective to treat CRF of deficiency of spleen and kidney with turbid damp and blood stagnation symptom.

Objective: To investigate the effects on blood fat and viscosity of Naoxinqing tablet., Methods: 66 patients of primary hyperlipoidemia were randomly divided into three groups. The first group was treated by Naoxinqing tablet, the second group was treated by Naoxinqing and combined with half dose Simvastatin, the third group was treated by full dose Simvastatin. Then the clinical effect, fasting plasma lipid, the index of blood viscosity and side effect of the three group' patients were compared after 8 weeks., Results: The index of blood fat improved obviously after treatment of the three groups ( P < 0.05, P < 0. 01), group 2 and 3 were significantly superior to group 1 (P < 0.05), and no significance between group 2 and 3 (P > 0.05)., Conclusions: The Naoxinqing tablet can improve the metabolism of blood fat, decrease blood viscosity obviously and treat hyperlipoidemia effectively with little side effect.

Objective: To explore the effect of Dan Shao Tang (DST) in treating diabetic nephropathy (DN) of deficiency of Yin with damp-heat symptom., Methods: The 72 patients with DN of deficieny of Yin with damp-heat symptom were randomly divided into two groups. Among them, the 42 patients in treatment group were treated with DST and western medicine and the 30 patients in control group were treated only with western medicine. Before and after treatment, the effect and indexes change including blood glucose, renal function, proteinuria, microproteins, lipid metabolism and hyperviscosity were observed., Results: After three months treatment, the general effective rate in treatment group was 76.19%, which was markedly higher than that in control group (50.00%, P < 0.01). Moreover, treatment group was obviously better than control group on decreasing blood glucose proteinuria and microproteins, improving renal function, ameliorating lipuid metabolism and hyperviscosity (P < 0.01 or P < 0.05)., Conclusion: DST is effective ton treatment on DN of deficiency of Yin with damp-heat symptom.

Objective: To study the effect of Colquhounia root tablet (CRT) in treating nephrotic syndrome with sequential lipid metabolism disorder (NS-LMD)., Methods: The 96 patients with NS-LMD were randomly divided into two groups, the 60 cases in the treated group treated with CRT and the 36 cases in the control group treated with hormone or cytotoxic medicine. The curative effect and the related indexes were determined before and after treatment., Results: After six months treatment, the general effective rate in the treated group was 88. 33%, which was markedly higher than that in the control group (69.44%, P < 0.05). The levels of the treated group in ameliorating lipid metabolism disorder and renal dysfunction were also higher than those in the control group (P < 0.05)., Conclusion: CRT could improve NS-LMD, improve renal function, eliminate urinary protein and increase plasma albumin. It is highly effective with low toxicity and safe.