Abstract: The present invention relates to a method for treating cancer using an immune checkpoint inhibitor, and more particularly, to a method for treating cancer by identifying the expression of an immune checkpoint protein and a lymphoid or myeloid cell-specific protein in circulating tumor cells isolated from blood, sorting patients, in whom the expression of the immune checkpoint protein and the expression of the lymphoid or myeloid cell-specific protein are identified as positive, as patients to whom an immunotherapeutic anticancer agent can be applied, and administering the immune checkpoint inhibitor to the patients. Since the method for treating cancer using circulating tumor cells according to the present invention sorts patients by simultaneously identifying the expression of an immune checkpoint protein and a lymphoid or myeloid cell-specific protein in a liquid biopsy, the method has a very high level of agreement with biopsies, and thus a high degree of commercial utility.

Abstract: A method for screening a prostate cancer patient, which may analyze whether or not androgen receptor (AR)-targeted therapy is applicable to the prostate cancer patient, through optical image analysis of circulating tumor cells and an AR variant.

Abstract: qRT-PCR primers capable of detecting EML4-ALK gene variant based on circulating tumor cells at a more sensitive detection limit than a conventional method. Also disclosed is a lung cancer patient screening method which is capable of detecting EML4-ALK gene variant using circulating tumor cells even in a lung cancer patient on whom ALK-FISH testing has been difficult to perform, due to difficulty in collecting a solid lung cancer tissue sample, and is able to determine whether an anticancer drug targeting the EML4-ALK gene variant may be applied to the lung cancer patient.

Abstract: According to an embodiment of the present invention, there is provided a method of screening a prostate cancer patient by optical image analysis of a circulating tumor cell marker and a prostate-specific membrane antigen.

Abstract: Disclosed is a method of treating cancer using an immune checkpoint inhibitor. More specifically, disclosed is a method of treating cancer by checking expression of immune checkpoint protein and lymphoid cell- or myeloid cell-specific protein in circulating tumor cells isolated from blood, selecting, as a patient to whom a cancer immunotherapy drug is applicable, the patient found to be positive for expression of the immune checkpoint protein and negative for expression of the lymphoid cell- or myeloid cell-specific protein, and administering an immune checkpoint inhibitor to the patient. In the method, expression of immune checkpoint protein and expression of lymphoid cell- or myeloid cell-specific protein in a liquid biopsy are simultaneously checked, and then a patient is selected by eliminating false-positive circulating tumor cells. Thus, the method has high accuracy and high commercial utility, and thus is useful for cancer diagnosis and treatment.

Abstract: According to an embodiment of the present invention, there is provided a method of screening a prostate cancer patient by optical image analysis of a circulating tumor cell marker and a prostate-specific membrane antigen.

Abstract: A method for screening a prostate cancer patient, which may analyze whether or not androgen receptor (AR)-targeted therapy is applicable to the prostate cancer patient, through optical image analysis of circulating tumor cells and an AR variant.

Abstract: According to one embodiment of the present invention, there is provided a method of screening a lung cancer patient having acquired resistance to an EGFR inhibitor by optical image analysis of circulating tumor cells and AXL.

Abstract: qRT-PCR primers capable of detecting EML4-ALK gene variant based on circulating tumor cells at a more sensitive detection limit than a conventional method. Also disclosed is a lung cancer patient screening method which is capable of detecting EML4-ALK gene variant using circulating tumor cells even in a lung cancer patient on whom ALK-FISH testing has been difficult to perform, due to difficulty in collecting a solid lung cancer tissue sample, and is able to determine whether an anticancer drug targeting the EML4-ALK gene variant may be applied to the lung cancer patient.

Abstract: A method of collecting target cells including providing a cell collection device comprising a conduit defining a fluid channel, a first screen and a second screen, the first and second screens are movable relative to each other along the flow direction between a first configuration and a second configuration, flowing a fluid composition comprising the target cells in the flow direction while the first and second screens are in a first configuration to screen at least part of the target cells, moving the first screen relative to the second screen along the flow direction from the first configuration to form the second configuration, to permit at least part of the target cells screened in the first configuration to pass the first screen first and then the second screen, and collecting at least part of the target cells at the second end of the fluid channel.

Abstract: A cell collecting device is configured to collect target cells from a fluid sample such as blood or physiological fluid. The cell collecting device includes a conduit through which a fluid sample containing target cells passes. The cell collecting device further includes a screen filter installed inside the conduit and configured to guide the target cells toward a specified region. The screen filter includes a plurality of filtering holes for filtering the target cells.

Abstract: Disclosed is a slide assembly for a cytospin. The slide assembly includes: a slide having a hole formed in a predetermined position and including a mesh filter installed on a lower surface of the slide in alignment with the hole, the mesh filter having a plurality of filtering holes; and a filter card disposed below the slide so as to make contact with the lower surface of the slide. The slide assembly has an effect of preventing a loss of cells to be inspected and an effect of enabling accurate qualitative and quantitative analysis of inspection targets.

Abstract: A cell collecting device is configured to collect target cells from a fluid sample such as blood or physiological fluid. The cell collecting device includes a conduit through which a fluid sample containing target cells passes. The cell collecting device further includes a screen filter installed inside the conduit and configured to guide the target cells toward a specified region. The screen filter includes a plurality of filtering holes for filtering the target cells.

Abstract: Disclosed is a slide assembly for a cytospin. The slide assembly includes: a slide having a hole formed in a predetermined position and including a mesh filter installed on a lower surface of the slide in alignment with the hole, the mesh filter having a plurality of filtering holes; and a filter card disposed below the slide so as to make contact with the lower surface of the slide. The slide assembly has an effect of preventing a loss of cells to be inspected and an effect of enabling accurate qualitative and quantitative analysis of inspection targets.

Abstract: A cell collecting device is configured to collect target cells from a fluid sample such as blood or physiological fluid. The cell collecting device includes a first filter having a plurality of first pores formed into a size that enables target cells contained in a fluid sample to pass through the first pores, and a second filter having a plurality of second pores formed into a size that enables the target cells contained to pass through the second pores. The second filter is arranged below the first filter in such a position as to filter the target cells.

Abstract: A micro-fluidic device includes a filter case, a first capture array and a second capture array. The filter case includes an inlet for introducing a sample containing different kinds of targets, an outlet for discharging the sample and a channel extending between the inlet and the outlet. The first capture array is arranged in an upstream portion of the channel, the first capture array including a plurality of first forward funnels arranged along a direction orthogonal to a flow direction of the sample so as to capture the different kinds of targets. The second capture array is arranged in a downstream portion of the channel, the second capture array including a plurality of second forward funnels arranged along the direction orthogonal to the flow direction of the sample so as to capture the different kinds of targets.

Abstract: Disclosed is a chip for preliminary sample evaluation and cell collection. The chip for preliminary sample evaluation and cell collection includes: a substrate having a first hole formed in a first position and a second hole formed in a second position, the second hole being smaller in size than the first hole; and a mesh filter installed on a lower surface of the substrate in alignment with the first hole, the mesh filter having a plurality of filtering holes. The chip is capable of preliminarily evaluating a state or a property of a sample. If the sample is unacceptable, it is possible to replace the entire sample with a new sample and to take an additional measure so that the sample becomes acceptable. If the sample is acceptable, the next process is performed to collect cells contained in the sample.

Abstract: A cell collecting device is configured to collect target cells from a fluid sample such as blood or physiological fluid. The cell collecting device includes a first filter having a plurality of first pores formed into a size that enables target cells contained in a fluid sample to pass through the first pores, and a second filter having a plurality of second pores formed into a size that enables the target cells contained to pass through the second pores. The second filter is arranged below the first filter in such a position as to filter the target cells.

Abstract: A cell collecting device is configured to collect target cells from a fluid sample such as blood or physiological fluid. The cell collecting device includes a conduit through which a fluid sample containing target cells passes. The cell collecting device further includes a screen filter installed inside the conduit and configured to guide the target cells toward a specified region. The screen filter includes a plurality of filtering holes for filtering the target cells.

Abstract: A micro-fluidic device includes a filter case, a first capture array and a second capture array. The filter case includes an inlet for introducing a sample containing different kinds of targets, an outlet for discharging the sample and a channel extending between the inlet and the outlet. The first capture array is arranged in an upstream portion of the channel, the first capture array including a plurality of first forward funnels arranged along a direction orthogonal to a flow direction of the sample so as to capture the different kinds of targets. The second capture array is arranged in a downstream portion of the channel, the second capture array including a plurality of second forward funnels arranged along the direction orthogonal to the flow direction of the sample so as to capture the different kinds of targets.