RANKL inhibitors are used to treat osteoporosis, breast cancer, lung cancer, and prostate cancer. They work by preventing bone fractures and by destroying cancer cells.

What does RANKL stand for?

Receptor activator of nuclear factor kappa-Β ligand (RANKL), also known as tumor necrosis factor ligand superfamily member 11 (TNFSF11), TNF-related activation-induced cytokine (TRANCE), osteoprotegerin ligand (OPGL), and osteoclast differentiation factor (ODF), is a protein that in humans is encoded by the TNFSF11 …

Is prolia a RANKL inhibitor?

Prolia® is the first FDA approved RANK Ligand inhibitor for postmenopausal women with osteoporosis at high risk for fracture. Find out how Prolia® works as an antiresorptive treatment. Prolia® is an antiresorptive RANK Ligand inhibitor, and its mechanism of action makes it different than a bisphosphonate.

What is RANKL in osteoporosis?

The interaction of RANK with its ligand (RANKL) has been identified as the final common pathway through which bone resorption is regulated [29]. By binding to its receptor RANK on osteoclastic precursors, RANKL controls the differentiation, proliferation, and survival of osteoclasts.

What does the rank ligand do?

Receptor activator of NF-κB (RANK) ligand (RANKL) induces the differentiation of monocyte/macrophage–lineage cells into the bone–resorbing cells called osteoclasts.

How does rank and rankl work?

RANK is the receptor for RANK-Ligand (RANKL) and part of the RANK/RANKL/OPG signaling pathway that regulates osteoclast differentiation and activation. It is associated with bone remodeling and repair, immune cell function, lymph node development, thermal regulation, and mammary gland development.

What causes the RANKL?

In inflammatory conditions, such as rheumatoid arthritis, the numbers of immune and accessory cells are increased in affected joints. Some of these cells produce RANKL in response to locally elevated levels of pro-inflammatory cytokines and other inflammatory mediators.

What are the nutrition side effects of rank inhibitors?

The trace element strontium has the dual effects of preventing bone resorption and promoting bone formation. Studies have shown that strontium mainly functions through the OPG/RANK/RANKL signaling pathway, resulting in decreased bone resorption (Mi et al., 2017).

How do RANKL inhibitors work?

It is a receptor activator of nuclear factor-κB ligand (RANKL) inhibitor, which binds to and inhibits osteoblast-produced RANKL, in turn reduces the binding between RANKL and osteoclast receptor RANK, therefore decreases osteoclast-mediated bone resorption and turnover.

How does estrogen affect osteoporosis?

Menopause predisposes women to osteoporosis due to declining estrogen levels. This results in a decrease in bone mineral density (BMD) and an increase in fractures.

Article first time published on

What is the best exercise for someone with osteoporosis?

Examples include walking, dancing, low-impact aerobics, elliptical training machines, stair climbing and gardening. These types of exercise work directly on the bones in your legs, hips and lower spine to slow mineral loss. They also provide cardiovascular benefits, which boost heart and circulatory system health.

What type of exercise is best for osteoporosis?

  • Walking.
  • Jogging.
  • Climbing stairs.
  • Jumping rope.
  • Hiking.
  • Dancing.
  • Pilates & yoga.

Why is Prolia good for osteoporosis?

Prolia works by decreasing bone breakdown in your body. This leads to reduced bone loss and helps to treat osteoporosis. Prolia is given by healthcare providers as an injection under your skin (called a subcutaneous injection).

What is the role of RANK RANKL and OPG in bone formation?

RANKL/RANK signaling regulates osteoclast formation, activation and survival in normal bone modeling and remodeling and in a variety of pathologic conditions characterized by increased bone turnover. OPG protects bone from excessive resorption by binding to RANKL and preventing it from binding to RANK.

What is RANKL RANK OPG pathway?

The RANK/RANKL/OPG Pathway. The RANKL/RANK/OPG system is known for its roles in osteoclasts maturation, bone modeling, and bone remodeling. Receptor activator of NF-kB (RANK), receptor activator of NF-kB ligand (RANKL), and osteoprotegerin (OPG) are the main components of this signaling system.

Which cell releases OPG?

Osteoprotegerin (OPG) is secreted by osteoblasts and osteogenic stromal stem cells and protects the skeleton from excessive bone resorption by binding to RANKL and preventing it from interacting with RANK. The RANKL/OPG ratio in bone marrow is thus an important determinant of bone mass in normal and disease states.

What stimulates RANKL expression?

Parathyroid hormone (PTH) stimulates osteoclast formation by binding to its receptor on stromal/osteoblastic cells and stimulating the production of receptor activator of NFkappaB ligand (RANKL) and inhibiting the expression of osteoprotegerin (OPG).

Does estrogen increase OPG?

Estrogen stimulates OPG expression mainly at a transcriptional level through the estrogen receptor (ER), particularly ERα (13–15,18). Furthermore, an estrogen response element has been identified in the OPG promoter (19).

Why do osteoblasts release RANKL?

RANKL is expressed on osteoblasts and T cells. It binds the receptor RANK, which is produced on osteoclasts and their progenitors. The interaction of RANK with RANKL is required for osteoclast formation, differentiation, activation and survival.

What stimulates bone resorption?

Hormones play a role in determining when bones go through resorption or formation. These include parathyroid hormone (PTH) and calcitonin. When the level of calcium in the blood is low, the parathyroid activates to release PTH which stimulates osteoclasts to remove bone, thus releasing calcium into the bloodstream.

What are osteoclasts for?

Osteoclasts are the cells that degrade bone to initiate normal bone remodeling and mediate bone loss in pathologic conditions by increasing their resorptive activity. They are derived from precursors in the myeloid/ monocyte lineage that circulate in the blood after their formation in the bone marrow.

What role does estrogen play in bone remodeling?

Estrogen is critical for skeletal homeostasis and regulates bone remodeling, in part, by modulating the expression of receptor activator of NF-κB ligand (RANKL), an essential cytokine for bone resorption by osteoclasts.

What is the other name for Prolia?

Before receiving denosumab injection, you should know that denosumab injection is available under the brand names Prolia and Xgeva.

How do bisphosphonates work?

Bisphosphonates are drugs that target areas of higher bone turnover. The osteoclast cells, which break down old bone, absorb the bisphosphonate drug. Their activity is slowed down. This reduces bone breakdown.

What is another name for denosumab?

Denosumab is also known by its brand names, Xgeva and Prolia. It helps to prevent fractures and other cancer related bone problems in adults with cancer that has spread to the bones.

Is prolia worth the risk?

Studies have found that Prolia is generally safe and effective to treat osteoporosis and certain types of bone loss. For example, in the studies, people taking Prolia for up to 8 years didn’t have significant side effects compared with people taking a placebo. (A placebo is a treatment with no active drug.)

What foods are bad for osteoporosis?

  • Salt. …
  • Caffeine. …
  • Soda. …
  • Red Meat. …
  • Alcohol. …
  • Wheat Bran. …
  • Liver and Fish Liver Oil.

Do you get pain with osteoporosis?

Osteoporosis is not usually painful until a bone is broken, but broken bones in the spine are a common cause of long-term pain. Although a broken bone is often the first sign of osteoporosis, some older people develop the characteristic stooped (bent forward) posture.

What are the symptoms of estrogen deficiency?

  1. Breast tenderness. Sore breasts are a telltale sign of low estrogen that’s normal. …
  2. Fatigue and sleep issues. …
  3. Irregular menstrual cycles. …
  4. Disappearing menstrual cycles. …
  5. Mood swings and depression. …
  6. Headaches. …
  7. Hot flashes and night sweats. …
  8. Frequent urinary tract infections.

How can I increase my bone density after 60?

  1. Think calcium. Women up to age 50 and men up to age 70 need 1,000 milligrams daily; women over 50 and men over 70 should get 1,200 milligrams daily.
  2. And vitamin D. …
  3. Exercise. …
  4. Don’t smoke. …
  5. Drink alcohol moderately, if at all. …
  6. Remember protein. …
  7. Maintain an appropriate body weight.

What is the best HRT for osteoporosis?

Tibolone, a selective tissue estrogenic activity regulator (STEAR), is effective in the treatment of vasomotor symptoms, vaginal atrophy and prevention/treatment of osteoporosis with a clinical efficacy similar to that of conventional HRT.