1 Supplementary Material 2 In the primary screen of the anti-cancer traditional Chinese medicinal herbs and derived monomers using vasculogenic tumor cells as a model, we found that the extract of Coptis Chinensis and derived JH and other 4 monomers showed inhibitory effects on the proliferation of human melanoma cells as follows: 1. The extraction of Coptis chinensis: The active components of Coptis chinensis were prepared as follows: For the ethanol extract, the whole plant of Coptis chinensis (100 g) was chopped and extracted three times with 80% ethanol (reflux, 2 h each time), and then the ethanol extracts were combined and evaporated in a vacuum to yield an ethanol extract 9.68 g (yield 9.7%). For the water extract, the whole plant of Coptis chinensis (100 g) was chopped and extracted for three times with 100 ℃ water (reflux, 2 h each time), and then the water extracts were combined and evaporated in a vacuum to yield an water extract 17.08 g (yield 17.1%). 2. Next, we examined the effect of extracts from Coptis chinensis on the proliferation of human melanoma C8161 and A375 cells by Alamarblue. The result showed that both ethanol and water extracts of Coptis chinensis had anti-melanoma cell proliferative effect, and C8161 cells were more sensitive to the extracts as compared with A375 cells (Supplementary Table 2). Supplementary Table 2. Effect of ethanol and water extracts of Coptis chinensis on human melanoma cell proliferation extract (μg/ml) ethanol extract C8161 A375 water extract C8161 A375 2 0.625 2.6% 1.5% 0.7% 0.1% 1.25 8.8% 4.9% 7.0% 4.7% 2.5 14.5% 8.0% 7.3% 7.0% 5 18.5% 16.6% 16.0% 11.9% 10 42.2% 35.2% 34.7% 27.1% 20 78.5% 53.4% 54.8% 32.4% 40 84.3% 81.7% 78.6% 62.9% 80 92.3% 96.8% 86.2% 93.2% 3. Next, we tested the effect of 5 monomers purified from Coptis chinensis on human melanoma cell C8161 proliferation by Alamarblue, including obakulactone mognoflorine, obakunone, ferulic acid, and Jatrorrhizine hydrochloride (JH). As shown in Supplementary Tables 3 and 4, JH exerted anti-melanoma proliferative effect, but others not obviously. Therefore, we focused on JH. Supplementary Table 3. Effect of several monomers from Coptis chinensis on human melanoma cell C8161 proliferation by Alamarblue Drug (μM) obakulactone mognoflorine obakunone ferulic acid JH 1.25 -2.2% 4.4% -1.6% -6.8% -0.9% 2.5 -0.9% -0.4% -1.4% 0.5% 2.2% 3 5 0.5% 2.0% 1.1% 2.2% 3.3% 10 0.9% -1.0% 2.6% 3.6% 9.7% 20 9.0% 7.6% 2.7% 4.3% 21.8% 40 -1.4% 0.8% 1.8% 4.4% 47.4% 80 -4.0% 3.3% 0.6% 2.6% 71.2% 160 3.6% 8.9% 10.3% 12.0% 87.9% Supplementary Table 4. Effect of several monomers from Coptis chinensis on human melanoma cell A375 proliferation by Alamarblue Drug (μM) obakulactone mognoflorine obakunone ferulic acid JH 1.25 1.2% 3.2% -1.3% 0.3% -5.9% 2.5 -1.4% 2.5% -2.4% 0.4% -0.1% 5 0.0% 1.5% -2.5% 1.5% -1.0% 4 10 0.9% 1.2% -6.1% -1.1% 3.0% 20 0.7% 1.4% 1.1% -4.9% 3.9% 40 0.2% 6.2% 5.5% 1.8% 9.0% 80 -1.1% 3.1% -4.8% -0.1% 27.0% 160 -2.9% 7.9% 8.6% 11.4% 55.8% Supplementary Table 5. Effect of JH on human solid cancer cells proliferation by Alamarblue Number 1 2 3 4 5 6 Cell line Eahy926 C8161 HepG2 HL-60 H9 HEL Cancer cells human umbilical vein endothelial cells human metastatic melanoma cells human hepatic carcinoma cells human original myelogenous leukemia cells human T lymphoma cells human erythroleukemia cell line IC50 (μM) 45.6 47.4 47.4 50.7 51.1 51.1 5 7 8 9 10 12 13 CCRF Jurkat NB-4 Daudi MDA-MB231 LM3 SGC-7901 14 CaSki 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Dami U-2 OS U251 ECV-304 HMY2-CIR PaTu8988 KP-N-NS RD NAMALWA Caki-1 My-5 Saos-2 K562 SW1990 AGS SW480 MG-63 UC-CUC U-87MG HO-8910PM HCCC-9810 U937 A172 N87 Bxpa-3 MCF-7 HT-29 11 human acute leukemia T lymphoma cells human T lymphoma cell leukemia cells human leukemia cell line human megakaryocytic leukemia cells 51.7 54.4 56.3 57.9 human breast cancer cells 57.9 human hepatic carcinoma cells human gastric cancer cells human cervical cancer with intestinal metastasis cells human megakaryocytic leukemia cells human osteosarcoma cells human glioma cells human umbilical vein endothelial cells human B lymphoblastoid cells human pancreatic cancer cells human adrenal neuroblastoma cells human embryonal rhabdomyosarcoma cells human Burkitt's lymphoma cells human renal adenocarcinoma cell line human myeloma cell line human osteosarcoma cells human chronic myeloid leukemic cell line human pancreatic cancer cells human gastric cancer cells human colon cancer cells human osteosarcoma cells human monocytic leukemia cells human glioma cells human high metastatic ovarian cancer cells human bile duct cell type liver cells human tissue cell lymphoma cells human glioblastoma cells human gastric cancer cells human pancreatic cancer cells human breast adenocarcinoma cell line human colon carcinoma cell line 61.1 61.9 62.5 63.1 63.8 66.2 67.4 69.5 75.2 75.6 77.5 78.7 79.5 81.4 81.7 82.2 83.2 83.2 83.6 84.2 85.7 86.0 89.0 94.7 94.9 98.2 99.1 99.3 101.0 114.1 6 Supplementary Figure 1. Effect of JH on the body weight of nude mice with Matrigel plugs